Diamond cutting discs primary work ! Diamond cutting discs used in the steel industry at the moment are trivial compared So the primary vocal pieces are welded diamond cutting diamond concrete diamond bladescutting discs : two of the high-frequency welding and laser welding , high frequency welding pass is too high temperature solidification media will head welded together with the matrix , laser welding, laser beam through the head too concrete saw bladeslow marginal touch with the matrix resulting metallurgical melting beans cut . Sintered diamond cutting discs : two sintering and sintering of cold pressing, sintering constraints .Electroplated diamond cutting discs : the head through the process of plating powder adheres to the substrate.
grinding cup wheels
2014年2月19日星期三
diamond blade saws easily collapse or broken tooth problems
Questions about the high-speed hacksaw teeth or broken easily collapse
When using high-speed hacksaw to cut various types of pipes, there are many situations because it is not caused by the attention to detail.
(1) Material: Sometimes the problem is with the material being cut. Some suppliers of production materials market, the GUSHI cutting discs process of cutting corners, causing the material to be cut contains too many impurities, so that when the blade hit the impurity particles, hard blade may break or give great sound, cut out of the surface uneven. But with softer high-speed hacksaw will not break, but the results will be skewed cutting phenomenon, because there will be a shift phenomenon blade in contact with the particles. The hardness of the material itself or some may not be too high, but the elements are added during the production process used and the cutting tool may cause problems or result in blunt edge chipping.
(2) Blade: Blade not properly gracefully compressive deformation, serrated blunt did not wear out, yaw poor, poor choice of teeth, serrated grinding bad. In short, poor quality blade.
(3) cutting machine: the state of the fixture, the blade is not installed correctly, the blade speed is not correct, not suitable feed rate, cutting oil selection, and the saw blade and cutting machine errors will be affected by each other. Skew the results of a customer complained that cutting through our observations to the scene, feeding racks are not fixed, when workers transport materials, often crooked off accidentally collide. Work Material crooked off after feeding rack, of course cut out of the material must be crooked. Customers also complained frequently broken saw blade can not GUSHI sds hammer drill bits be solved, we got to the scene found the mechanical design of the book has been pointed out, the longer the cutting material, there must be a fixed station to make the cut section was not shaking. However, when the customer is still chopped materials and the same, so the blade will have to be cut by shaking timber crashed. Customers also have the machines installed at the time and did not make the level of correction, so the machine is fundamentally crooked.
(4) the use of counterfeit machine: using poor quality metal circular sawing machine, the price was very cheap but in the production process of steel is not enough to cause the cutting vibration, so that there is a gap down the blade, cutting blade will have shaken will ultimately affect the properties of the cutting blade.
(5) manual machine operator: When using a manual machine, the user experience is more important, the user can feel the sharpness of the blade into the blade when the intensity and relatively easy to determine whether you can then use the saw blade ! The pneumatic or hydraulic models require the GUSHI diamond polishing tools user to more cautious use of the saw blade, cutting the workpiece which can not be blind to experience cutting grounds. Because each piece of the blade when cutting a workpiece not be the same, so that also in the life of a generally sawtooth a range. At the beginning of the cutting and stopping cutting, do not feed too fast, it may cause broken teeth and damaged. When the case has emerged relatively blunt serrated continued use will be pulling teeth, broken teeth and so on, there will be a serious crack blade body, the phenomenon of explosive film!
When using high-speed hacksaw to cut various types of pipes, there are many situations because it is not caused by the attention to detail.
(1) Material: Sometimes the problem is with the material being cut. Some suppliers of production materials market, the GUSHI cutting discs process of cutting corners, causing the material to be cut contains too many impurities, so that when the blade hit the impurity particles, hard blade may break or give great sound, cut out of the surface uneven. But with softer high-speed hacksaw will not break, but the results will be skewed cutting phenomenon, because there will be a shift phenomenon blade in contact with the particles. The hardness of the material itself or some may not be too high, but the elements are added during the production process used and the cutting tool may cause problems or result in blunt edge chipping.
(2) Blade: Blade not properly gracefully compressive deformation, serrated blunt did not wear out, yaw poor, poor choice of teeth, serrated grinding bad. In short, poor quality blade.
(3) cutting machine: the state of the fixture, the blade is not installed correctly, the blade speed is not correct, not suitable feed rate, cutting oil selection, and the saw blade and cutting machine errors will be affected by each other. Skew the results of a customer complained that cutting through our observations to the scene, feeding racks are not fixed, when workers transport materials, often crooked off accidentally collide. Work Material crooked off after feeding rack, of course cut out of the material must be crooked. Customers also complained frequently broken saw blade can not GUSHI sds hammer drill bits be solved, we got to the scene found the mechanical design of the book has been pointed out, the longer the cutting material, there must be a fixed station to make the cut section was not shaking. However, when the customer is still chopped materials and the same, so the blade will have to be cut by shaking timber crashed. Customers also have the machines installed at the time and did not make the level of correction, so the machine is fundamentally crooked.
(4) the use of counterfeit machine: using poor quality metal circular sawing machine, the price was very cheap but in the production process of steel is not enough to cause the cutting vibration, so that there is a gap down the blade, cutting blade will have shaken will ultimately affect the properties of the cutting blade.
(5) manual machine operator: When using a manual machine, the user experience is more important, the user can feel the sharpness of the blade into the blade when the intensity and relatively easy to determine whether you can then use the saw blade ! The pneumatic or hydraulic models require the GUSHI diamond polishing tools user to more cautious use of the saw blade, cutting the workpiece which can not be blind to experience cutting grounds. Because each piece of the blade when cutting a workpiece not be the same, so that also in the life of a generally sawtooth a range. At the beginning of the cutting and stopping cutting, do not feed too fast, it may cause broken teeth and damaged. When the case has emerged relatively blunt serrated continued use will be pulling teeth, broken teeth and so on, there will be a serious crack blade body, the phenomenon of explosive film!
2013年10月21日星期一
Factors size diamond saw blade
The grit size used in the 30/35 ~ 60/80 range. The more hard rock,
should be selected with a finer granularity. Because at the same
pressure conditions, the more detailed the more sharp diamond, cut hard
rock in favor. In addition, the general requirements of a large-diameter
blade cutting efficiency is high, with the coarser particle size should
be selected, for example, 30/40, 40/50; small-diameter blade cutting
efficiency is low, requires smooth green concrete blades rock cutting section, preferably to a
smaller particle size, such as 50/60, 60/80.
Segment concentration
The so-called diamond concentration, the diamond in the working layer is
the carcass in the density distribution (i.e. contained within the unit
area weight of the diamond). "Norms" provides work per cubic centimeter
of the matrix containing 4.4 kt diamond, the concentration of 100%,
including 3.3 kt diamond, the concentration was 75%. Volume
concentration of said agglomerates in the volume occupied by the number
of diamond and provides that when the volume of the total volume of the
diamond 1/4 concentration of 100%. Increasing the concentration of
diamond is expected to extend the life of the blade, because of the
increased concentration of each piece of diamond is reduced, the average
cutting force suffered. However, increasing concentrations will increase
the cost of the blade, so there is concrete core bits a concentration of the most
economical, and the concentration increases with the cutting rate.
Blade hardness
Generally, the higher the hardness binding agents, the stronger its wear
resistance. Thus, when a large rock abrasive cutting, the bonding agent
should be high hardness; when the cutting of soft rock material, the
hardness of the binding agent should be low; when large and abrasive
cutting hard rock, the binding agent should be moderate hardness .
Effect
Diamond saw blades in the process of cutting stone, will be centrifugal
force, cutting power, cutting hot alternating load effect.
Because force and temperature effects caused by diamond saw blade
grinding breakage.
Force effects: In the cutting process, the blade subject to axial force
and tangential force. Because there is wood band saw blades in the circumferential direction
and the radial force, in the axial direction so that the blade wavy dish
in radial direction. Both can cause deformation of the rock section is
not flat, stone wasted, sawing noise, vibration intensified, resulting
in diamond caking early damage, reduced blade life. +++
should be selected with a finer granularity. Because at the same
pressure conditions, the more detailed the more sharp diamond, cut hard
rock in favor. In addition, the general requirements of a large-diameter
blade cutting efficiency is high, with the coarser particle size should
be selected, for example, 30/40, 40/50; small-diameter blade cutting
efficiency is low, requires smooth green concrete blades rock cutting section, preferably to a
smaller particle size, such as 50/60, 60/80.
Segment concentration
The so-called diamond concentration, the diamond in the working layer is
the carcass in the density distribution (i.e. contained within the unit
area weight of the diamond). "Norms" provides work per cubic centimeter
of the matrix containing 4.4 kt diamond, the concentration of 100%,
including 3.3 kt diamond, the concentration was 75%. Volume
concentration of said agglomerates in the volume occupied by the number
of diamond and provides that when the volume of the total volume of the
diamond 1/4 concentration of 100%. Increasing the concentration of
diamond is expected to extend the life of the blade, because of the
increased concentration of each piece of diamond is reduced, the average
cutting force suffered. However, increasing concentrations will increase
the cost of the blade, so there is concrete core bits a concentration of the most
economical, and the concentration increases with the cutting rate.
Blade hardness
Generally, the higher the hardness binding agents, the stronger its wear
resistance. Thus, when a large rock abrasive cutting, the bonding agent
should be high hardness; when the cutting of soft rock material, the
hardness of the binding agent should be low; when large and abrasive
cutting hard rock, the binding agent should be moderate hardness .
Effect
Diamond saw blades in the process of cutting stone, will be centrifugal
force, cutting power, cutting hot alternating load effect.
Because force and temperature effects caused by diamond saw blade
grinding breakage.
Force effects: In the cutting process, the blade subject to axial force
and tangential force. Because there is wood band saw blades in the circumferential direction
and the radial force, in the axial direction so that the blade wavy dish
in radial direction. Both can cause deformation of the rock section is
not flat, stone wasted, sawing noise, vibration intensified, resulting
in diamond caking early damage, reduced blade life. +++
2013年10月7日星期一
Description of the advantages of diamond grinding wheel
Diamond is the world have the hardest known material material , compared with the other abrasives , microhardness , respectively , boron carbide, silicon carbide and corundum double, triple and quadruple , so its grinding performance than several other abrasives is much higher. And its thermal conductivity is relatively high, sharp blade grinding , grinding ability, less diamond blade saws congestion , better machined surface roughness , scratches and grinding burn and so small, but its deficiencies are prone to iron group elements react . Diamond grinding wheels and the products are mainly used in the manufacture of iron group metals
In order to place a variety of difficult circular blades to machine materials, such as stone, glass , cement products , refractories , ceramics, wood and carbide , silicon alloys and non-ferrous metal brittle ( casting ) and so on. Several physical properties of the abrasive :
As can be seen , compared with ordinary abrasives , diamond grinding wheel has the following excellent properties :
1 ) abrasive strength , high hardness , abrasive durability .
2 ) high thermal conductivity, low grinding temperature .
3 ) thermal expansion drum wheels coefficient is small, long service life.
As shown by the excellent diamond can win , it is widely used in cutting , grinding, grinding its industry and sawing, drilling and other tools industries. Diamond products including diamond tools and diamond abrasive.
Diamond wheels are widely used in cemented carbide, cermet , cast iron , ceramics , stones, stone, ferrite, concrete, refractory materials, fiber reinforced plastics and many other materials, grinding, its scope and the amount is increasing . The varieties are wheel, Whetstone , grinding piece , street wear strips.
In order to place a variety of difficult circular blades to machine materials, such as stone, glass , cement products , refractories , ceramics, wood and carbide , silicon alloys and non-ferrous metal brittle ( casting ) and so on. Several physical properties of the abrasive :
As can be seen , compared with ordinary abrasives , diamond grinding wheel has the following excellent properties :
1 ) abrasive strength , high hardness , abrasive durability .
2 ) high thermal conductivity, low grinding temperature .
3 ) thermal expansion drum wheels coefficient is small, long service life.
As shown by the excellent diamond can win , it is widely used in cutting , grinding, grinding its industry and sawing, drilling and other tools industries. Diamond products including diamond tools and diamond abrasive.
Diamond wheels are widely used in cemented carbide, cermet , cast iron , ceramics , stones, stone, ferrite, concrete, refractory materials, fiber reinforced plastics and many other materials, grinding, its scope and the amount is increasing . The varieties are wheel, Whetstone , grinding piece , street wear strips.
2013年9月28日星期六
Ten reasons alloy saw blade wear
1, the phase change wear alloy blade at a certain friction during high speed cutting , the substrate or the material at temperatures above the phase transition temperature , causes the alloy saw blade with cutting tools accelerated wear , thus losing the cutting ability . Such as high speed steels 500-600 °, ordinary steel 100 °, alloy steels 300-350 °, 65 manganese steel 200 ° temperature inside will result in the matrix phase transitions.
2 , the alloy microstructure in the welding temperature or other factors in the destruction of high -density ultra- fine particles in the welding alloy cold and hot temperatures , or high temperature , resulting in thicker alloy crystal , alloy cracking, deformation of the matrix alloy strength reduction and abrasion resistance .
3 , tool wear, cutting angle design and brick saws material discrepancies due to different hardness and various types of plastic materials not targeted under the appropriate choice of alloy , and no matter according to the hardness of the cutting dry cutting angle of each side effect which reduces tool life .
4 , the oxidation of the alloy blade wear oxidation wear at 800 ° C or higher friction temperature, oxygen in the air and alloys of cobalt , tungsten carbide, titanium, tool wear due to oxidation occurs .
5, the impact of technology and precision grinding wear, alloy circular saw blades are precision cutting tools, any main and sub- edge blade with tape, face cutting straight face , or radial cutting rather than a cutting line, each one formed alloy cutting point or depth , and many other factors that reduce their effectiveness .
6 , diffusion wear diffusion is a chemical wear, diffusion wear is at a high cutting tool and the workpiece between the mutual diffusion of alloying elements , the tool material physical and mechanical properties of reduced lead increased tool wear . Carbide, titanium carbide increased in the tantalum carbide or other additives can be added to improve the matrix alloy and the temperature of diffusion and thus improve tool wear resistance and heat resistance.
7 , adhesive wear in the cutting of plastic material , the cutting and the rake face after the cutting work viscosity, the tool surface or partially lower strength adhesive particles or the circular saw workpiece to be cut so that the tool with grinding brush wear.
8 , improper maintenance or improper operation caused by wear and tear , each cutting equipment, cutting feed rate is not the same , while the alloy saw blade is designed according to different cutting material various angles , with inappropriate will reduce its effectiveness.
9 , mechanical wear workpiece or the tool cutting edge surface carved with shades of grooves caused by wear and tear. Workpiece or cutting edge tool and the workpiece with high hardness more than the smaller tool easy to wear, so the tool must have a higher hardness.
10 , the tool wear buildup feed speed is too fast or accuracy is not high , wheel selection and other factors, is not a good grinding blade with the cutting tool material during shock loading or poor toughness , tool face angle for each blade will have a loss factor with from.
2 , the alloy microstructure in the welding temperature or other factors in the destruction of high -density ultra- fine particles in the welding alloy cold and hot temperatures , or high temperature , resulting in thicker alloy crystal , alloy cracking, deformation of the matrix alloy strength reduction and abrasion resistance .
3 , tool wear, cutting angle design and brick saws material discrepancies due to different hardness and various types of plastic materials not targeted under the appropriate choice of alloy , and no matter according to the hardness of the cutting dry cutting angle of each side effect which reduces tool life .
4 , the oxidation of the alloy blade wear oxidation wear at 800 ° C or higher friction temperature, oxygen in the air and alloys of cobalt , tungsten carbide, titanium, tool wear due to oxidation occurs .
5, the impact of technology and precision grinding wear, alloy circular saw blades are precision cutting tools, any main and sub- edge blade with tape, face cutting straight face , or radial cutting rather than a cutting line, each one formed alloy cutting point or depth , and many other factors that reduce their effectiveness .
6 , diffusion wear diffusion is a chemical wear, diffusion wear is at a high cutting tool and the workpiece between the mutual diffusion of alloying elements , the tool material physical and mechanical properties of reduced lead increased tool wear . Carbide, titanium carbide increased in the tantalum carbide or other additives can be added to improve the matrix alloy and the temperature of diffusion and thus improve tool wear resistance and heat resistance.
7 , adhesive wear in the cutting of plastic material , the cutting and the rake face after the cutting work viscosity, the tool surface or partially lower strength adhesive particles or the circular saw workpiece to be cut so that the tool with grinding brush wear.
8 , improper maintenance or improper operation caused by wear and tear , each cutting equipment, cutting feed rate is not the same , while the alloy saw blade is designed according to different cutting material various angles , with inappropriate will reduce its effectiveness.
9 , mechanical wear workpiece or the tool cutting edge surface carved with shades of grooves caused by wear and tear. Workpiece or cutting edge tool and the workpiece with high hardness more than the smaller tool easy to wear, so the tool must have a higher hardness.
10 , the tool wear buildup feed speed is too fast or accuracy is not high , wheel selection and other factors, is not a good grinding blade with the cutting tool material during shock loading or poor toughness , tool face angle for each blade will have a loss factor with from.
2013年9月16日星期一
Diamond cutting wheel grinding characteristics
Diamond thin cutting wheel is mainly used for fine groove and cut close , generally deep creep feed grinding method . With grinding depth, feed rate is small, the grinding wheel and the workpiece contact area, narrow kerf , metal removal rate, grinding , high precision, good surface quality and material utilization characteristics. The polishing pads for granite general rule is as follows:
1 ) Overall wheel cut thin ( more below 0.5mm ) , small diameter (20-100mm), fine particle size , size and shape and position precision , light weight , generally used in the high- speed conditions . Average speed of 5000-40000 rpm.
2 ) . Matrix-type cutting wheel mostly thick (0.5-2mm), diameter (100-200mm), coarse granularity , the accuracy is low, generally used for lower -speed large depth of cut conditions. Average speed of 3000-10000 rpm. 3 ) ultra-thin cutting wheel to use more fine-grained , and generally thinner grit size of its correspondingly thinner, good surface quality . However, the finer abrasive particle size decreased sharp cutting corresponding to correspondingly reduce the feed rate to accommodate the grit size machinability . 4 ) ultra-thin cutting wheel cutting depth is generally cut parts by the user according to fixed , the cutting mostly used creep feed grinding process , the depth of a cut to the . Such as thin cutting wheel , cutting conditions are poor ( mostly three face contact with the workpiece ) , making it difficult to heat , so to increase ( flow, pressure ) cooling the cutting area .
5 ) When the cutting wheel at the customer has just appeared on the machine does not move or cut the workpiece chipping , the proposal to increase the cutting speed or decrease feed rate ; when cut after Plate Compactor a period of time does not move or chipping , it is recommended to use Whetstone appropriate granularity on the surface of the blade wheel to adjust its sharpness .
6 ) . Workpiece surface quality and cutting performance mainly with thin cutting wheel for abrasive particle size , particle size finer surface finish processing the better . Simultaneously with the workpiece material , hardness, cutting the amount of machining conditions , processing requirements and other factors are also related.
7 ) Ultra-thin cutting wheel factory has been carried out before the general shaping and the blade , users can directly use . If you need further surgery, recommended green silicon carbide or corundum stone, cutting wheel size selected coarse granularity than 1-2 numbers ; if you sds hammer drill bits need further used for a period after the blade or the blade , it is recommended to use green silicon carbide or corundum Whetstone, cutting wheel size selected fine granularity than 1-2 number or the same number can be.
8 ) general but also with cutting material to be processed , hardness, precision machining requirements related to the proposed initial use of the best in the user's original conditions, do not easily change cutting .
9 ) to the user condition is also a major factor affecting the cutting performance , especially in the spindle axis moving string , runout , the flange parallel, have directly affected balancing precision cutting wheel cutting precision .
1 ) Overall wheel cut thin ( more below 0.5mm ) , small diameter (20-100mm), fine particle size , size and shape and position precision , light weight , generally used in the high- speed conditions . Average speed of 5000-40000 rpm.
2 ) . Matrix-type cutting wheel mostly thick (0.5-2mm), diameter (100-200mm), coarse granularity , the accuracy is low, generally used for lower -speed large depth of cut conditions. Average speed of 3000-10000 rpm. 3 ) ultra-thin cutting wheel to use more fine-grained , and generally thinner grit size of its correspondingly thinner, good surface quality . However, the finer abrasive particle size decreased sharp cutting corresponding to correspondingly reduce the feed rate to accommodate the grit size machinability . 4 ) ultra-thin cutting wheel cutting depth is generally cut parts by the user according to fixed , the cutting mostly used creep feed grinding process , the depth of a cut to the . Such as thin cutting wheel , cutting conditions are poor ( mostly three face contact with the workpiece ) , making it difficult to heat , so to increase ( flow, pressure ) cooling the cutting area .
5 ) When the cutting wheel at the customer has just appeared on the machine does not move or cut the workpiece chipping , the proposal to increase the cutting speed or decrease feed rate ; when cut after Plate Compactor a period of time does not move or chipping , it is recommended to use Whetstone appropriate granularity on the surface of the blade wheel to adjust its sharpness .
6 ) . Workpiece surface quality and cutting performance mainly with thin cutting wheel for abrasive particle size , particle size finer surface finish processing the better . Simultaneously with the workpiece material , hardness, cutting the amount of machining conditions , processing requirements and other factors are also related.
7 ) Ultra-thin cutting wheel factory has been carried out before the general shaping and the blade , users can directly use . If you need further surgery, recommended green silicon carbide or corundum stone, cutting wheel size selected coarse granularity than 1-2 numbers ; if you sds hammer drill bits need further used for a period after the blade or the blade , it is recommended to use green silicon carbide or corundum Whetstone, cutting wheel size selected fine granularity than 1-2 number or the same number can be.
8 ) general but also with cutting material to be processed , hardness, precision machining requirements related to the proposed initial use of the best in the user's original conditions, do not easily change cutting .
9 ) to the user condition is also a major factor affecting the cutting performance , especially in the spindle axis moving string , runout , the flange parallel, have directly affected balancing precision cutting wheel cutting precision .
2013年9月8日星期日
carbide saw blade grinding
Carbide saw blade grinding surface and in accordance with rake angle of the surface after a 1:3 relationship, only when the saw blade through the right to make the tool after grinding to maintain normal working life. Incorrect grinding, if only the front face or only from granite polishing pads a corner after corner knife surface grinding tool life will be shortened. Another important point is that the whole area should be fully worn grinding. Carbide saw blade sharpening machine is placed on automatic grinding, due to quality reasons, we do not recommend universal grinding machine grinding blade manually, automatic CNC grinding performance guarantee rake surface and the surface of the posterior horn of the repair mill entirely in the tamping rammer same direction.
Rake surface and the posterior horn of the surface grinding carbide teeth ensure ideal working condition and stable life, serrated remaining length and width should be at least not less than 1 mm (measured starting from tooth Block).
Saws grinding
To prevent large diamond dressing grinding wheel wear, it is necessary to saw the side of the sawtooth sufficient living a side projecting portion. On the other hand, the maximum lateral projection on each side should not exceed 1.0 to 1.2 mm in order to ensure the stability of the ceramic tile saw sawtooth.
Changes flute
Despite grinding reduces jagged length, but YFENG flute design ensures heat off of the saw blade grinding operation has sufficient chip space, thus avoiding grinding teeth grinding while the flutes to the case .
Rake surface and the posterior horn of the surface grinding carbide teeth ensure ideal working condition and stable life, serrated remaining length and width should be at least not less than 1 mm (measured starting from tooth Block).
Saws grinding
To prevent large diamond dressing grinding wheel wear, it is necessary to saw the side of the sawtooth sufficient living a side projecting portion. On the other hand, the maximum lateral projection on each side should not exceed 1.0 to 1.2 mm in order to ensure the stability of the ceramic tile saw sawtooth.
Changes flute
Despite grinding reduces jagged length, but YFENG flute design ensures heat off of the saw blade grinding operation has sufficient chip space, thus avoiding grinding teeth grinding while the flutes to the case .
2013年9月4日星期三
Identification of the diamond tool
A diamond single refraction
Diamond single refraction is due to the nature of the diamond characteristics of the decision. While other natural stones or artificial gems are mostly double refraction in nature. Fake cbn grinding wheel diamond under a 10x magnifying glass from the front, slightly oblique perspective, it is easy to see that angular lines overlapping images, and also showing the two bottom light. Birefringence small differences such as zircon, etc., can also be seen that light at the end of overlapping images.
2, the diamond adsorption
Grease and dirt diamond has a certain affinity, the oil is easily adsorbed diamond. Therefore, the diamond will feel with your fingers stroked tackiness, fingers seem to have slimy feeling. This is not any gems. This approach needs to be trained can only master concrete ring saw one subtle difference.
3, the characteristic straight line
Diamond polishing the surface is very smooth. With a pen dipped in ink across the diamond, if real diamonds, leaving the surface is a smooth and continuous lines, characterized by straight line. Counterfeit goods leaving behind a small dots lines. This method should be observed with a magnifying glass.
4, the unique adamantine luster
Roughly 100 degrees incandescent light, a good diamond cutting and grinding are compared with counterfeit table saw blades goods, it is easy to see which has the adamantine luster. This method should not be too dark or too strong in the light is conducted.
Diamond single refraction is due to the nature of the diamond characteristics of the decision. While other natural stones or artificial gems are mostly double refraction in nature. Fake cbn grinding wheel diamond under a 10x magnifying glass from the front, slightly oblique perspective, it is easy to see that angular lines overlapping images, and also showing the two bottom light. Birefringence small differences such as zircon, etc., can also be seen that light at the end of overlapping images.
2, the diamond adsorption
Grease and dirt diamond has a certain affinity, the oil is easily adsorbed diamond. Therefore, the diamond will feel with your fingers stroked tackiness, fingers seem to have slimy feeling. This is not any gems. This approach needs to be trained can only master concrete ring saw one subtle difference.
3, the characteristic straight line
Diamond polishing the surface is very smooth. With a pen dipped in ink across the diamond, if real diamonds, leaving the surface is a smooth and continuous lines, characterized by straight line. Counterfeit goods leaving behind a small dots lines. This method should be observed with a magnifying glass.
4, the unique adamantine luster
Roughly 100 degrees incandescent light, a good diamond cutting and grinding are compared with counterfeit table saw blades goods, it is easy to see which has the adamantine luster. This method should not be too dark or too strong in the light is conducted.
2013年9月1日星期日
stainless steel cutting blade segment dedicated
Special stainless steel cutting blade Category:
1, the surface chromium nitride alloy plating
(Seven color), this cutting stainless steel and alloy coatings and materials when compared to the general coating abrasion Edge 2000 Pads resistance, the resistance will be reduced under high-speed operation, in order to prolong the life of the blade and maintain long-term action under the stability. Adding cobalt and the blade, the saw blade can effectively improve the stability, hardness and wear resistance. The blade can reduce the cobalt content increases, the coefficient of friction between the workpiece. Its durability is the ordinary high-speed steel 1 to 2 times. This blade especially for stainless steel tubing, rods, profiles sawing, cutting, cutting, milling. Used in the processing of ordinary steel, aluminum, plastic, wood and other materials, the effect is very obvious, less burr after cutting section, blade toughness, cutting and long life. Machinable stainless steel tube material: 3-Series industrial stainless steel.
2, oxidation coating
: After the steam treatment, the blade, the wood band saw blades surface oxide layer (Fe3O4), this blade surface smoothness, and help to enhance the self-lubricating ability of the blade, the blade material stuck phenomenon is to a certain extent can be avoided on the cooling ability to absorb better, but compared to other coated blade, cutting the number of relatively less, which is usually the most common one we saw. HSS film - oxide coating technology parameters:
Coating thickness: about 5-10 microns
Surface hardness: about 900HV
Friction coefficient: 0.65
Machinable stainless steel tube material: 3-Series industrial stainless steel.
3, titanium coating
: After special treatment, the blade PVD coating, the surface was gold, the surface hardness of 2400HV, compared to steam treatment saw increased nearly three-fold, Mocha coefficient decreased to 0.55 for the semi-automatic or fully automatic metal circular sawing machine Quick Sawing seamless, iron pipes, rods, etc., faster than the steam treatment saw doubling, effectively reducing the cost cutting while in sawing stainless steel pipe, it can get quite satisfactory cutting results. HSS piece - titanium coating technology parameters:
Coating thickness: about 5 microns
Surface hardness: about 2200-2400HV
Oxidation temperature: 600 ℃
Friction coefficient: 0.55
Machinable stainless steel tube material: 3-Series industrial stainless steel.
4, purplish blue coat
: The use of multi-layer PVD coating treated blade to achieve a very low coefficient of friction, suitable for floor polisher pads high cutting speeds and high feed rate used under the fine processing, and can significantly reduce litter on the edge adhesion . For cutting hard metal material, a copper alloy cut, cutting titanium, and an adhesive material cutting phenomenon is particularly frequent. High surface hardness of the blade allows for high-speed cutting work with other than uncoated blades, feed can be increased by 100%, increase the service life of the saw blade. This blade makes cutting surface is very smooth, saw more wear, so the cutting speed should be increased by 100%. HSS film - purplish blue coating technology parameters:
Coating thickness: about 5 microns
Surface hardness: about 3000-3300HV
Oxidation temperature: 450 ℃
Friction coefficient: 0.25
Machinable stainless steel tube material: stainless steel 3-series and two series of industrial stainless steel decorative materials.
1, the surface chromium nitride alloy plating
(Seven color), this cutting stainless steel and alloy coatings and materials when compared to the general coating abrasion Edge 2000 Pads resistance, the resistance will be reduced under high-speed operation, in order to prolong the life of the blade and maintain long-term action under the stability. Adding cobalt and the blade, the saw blade can effectively improve the stability, hardness and wear resistance. The blade can reduce the cobalt content increases, the coefficient of friction between the workpiece. Its durability is the ordinary high-speed steel 1 to 2 times. This blade especially for stainless steel tubing, rods, profiles sawing, cutting, cutting, milling. Used in the processing of ordinary steel, aluminum, plastic, wood and other materials, the effect is very obvious, less burr after cutting section, blade toughness, cutting and long life. Machinable stainless steel tube material: 3-Series industrial stainless steel.
2, oxidation coating
: After the steam treatment, the blade, the wood band saw blades surface oxide layer (Fe3O4), this blade surface smoothness, and help to enhance the self-lubricating ability of the blade, the blade material stuck phenomenon is to a certain extent can be avoided on the cooling ability to absorb better, but compared to other coated blade, cutting the number of relatively less, which is usually the most common one we saw. HSS film - oxide coating technology parameters:
Coating thickness: about 5-10 microns
Surface hardness: about 900HV
Friction coefficient: 0.65
Machinable stainless steel tube material: 3-Series industrial stainless steel.
3, titanium coating
: After special treatment, the blade PVD coating, the surface was gold, the surface hardness of 2400HV, compared to steam treatment saw increased nearly three-fold, Mocha coefficient decreased to 0.55 for the semi-automatic or fully automatic metal circular sawing machine Quick Sawing seamless, iron pipes, rods, etc., faster than the steam treatment saw doubling, effectively reducing the cost cutting while in sawing stainless steel pipe, it can get quite satisfactory cutting results. HSS piece - titanium coating technology parameters:
Coating thickness: about 5 microns
Surface hardness: about 2200-2400HV
Oxidation temperature: 600 ℃
Friction coefficient: 0.55
Machinable stainless steel tube material: 3-Series industrial stainless steel.
4, purplish blue coat
: The use of multi-layer PVD coating treated blade to achieve a very low coefficient of friction, suitable for floor polisher pads high cutting speeds and high feed rate used under the fine processing, and can significantly reduce litter on the edge adhesion . For cutting hard metal material, a copper alloy cut, cutting titanium, and an adhesive material cutting phenomenon is particularly frequent. High surface hardness of the blade allows for high-speed cutting work with other than uncoated blades, feed can be increased by 100%, increase the service life of the saw blade. This blade makes cutting surface is very smooth, saw more wear, so the cutting speed should be increased by 100%. HSS film - purplish blue coating technology parameters:
Coating thickness: about 5 microns
Surface hardness: about 3000-3300HV
Oxidation temperature: 450 ℃
Friction coefficient: 0.25
Machinable stainless steel tube material: stainless steel 3-series and two series of industrial stainless steel decorative materials.
2013年8月30日星期五
Some natural granite introduction
A dark acidic igneous rocks, commonly known as granite. Carbon dioxide content of more than 70%. Lighter in color, with gray, red concrete diamond blades meat are more common. Mainly composed of quartz, feldspar and biotite and other dark mineral composition. Quartz content of 20% -40%, alkali feldspar than plagioclase feldspar total about 2/3 or more. For a variety of alkali feldspar and albite feldspar, plagioclase mainly sodium oligoclase or longer stone. Dark minerals are dominated by biotite, with hornblende. With porphyritic granite structure or structures. By containing mineral species can be divided into biotite granite, muscovite granite, hornblende granite core bits granite, two-mica granite, etc., constructed according to the structure can be divided into fine-grained granite, medium-grained granite, coarse-grained granite, porphyritic granite, porphyritic Granite, geode granite and gneissic granite; according contain minerals can be divided into cassiterite granite, granite containing niobium, beryllium-containing granite, lithium mica granite, electrical granite. Common length petrochemical, greisenized tourmalinization other self metamorphism. Granite is a rock widely distributed in various geological era has outputs. Morphological mostly batholith, rock plants, rock bell. In Genesis, the view was expressed that the crust is deep granite granitic magma crystallization by condensation or crystallization of basaltic magma Plate Compactor differentiation is made, it was considered to be the depth of metamorphism and metasomatism caused by the granite of the result. Many non-ferrous minerals such as copper, lead, zinc, tungsten, tin, bismuth, molybdenum, precious metals such as gold, silver and other metals, rare metals such as niobium, tantalum, beryllium, radioactive elements such as uranium, thorium, etc., are related to granite.
2013年8月28日星期三
diamond cutter cutting broaches
Diamond Tool Broach Cutting The main features are: put the package can be processed repeatedly LJ Tong PCT, broaching Browse Medical fish,
2. Broaches the diamond blades surface being processed by different parts which can be divided into Dan Wei and at fullback.
3. Broach according to the structure can be divided into the wall to make each other, make each other hydrocarbons, assembled and tipped-in.
4. Used in different ways by picking knife can be divided into broaches, visiting pad Wei Wei and Ying wall.
5. Broach working part of the tile saw blade structure parameters are: fish, so the amount of /:, on the front of each tooth fish eight
Width 5. , And the adjacent teeth flute.
6. Broaching cutting layer dimensions are: over-pack than the name Yap B "ugly toe Cliff Kennedy was a guard at Collage area plastic.
7. Broaching ways: Jinxing Li, male silk arts and mutual funds.
8. Layered broaching into each other once PCT Kyu and composition.
9. Broach test are: Tanga while granite polishing pad I was picking teeth, and pick up the Star Fort Gordon, David Fish degrees picking pad test.
10. Currently in production mainly by promoting the use of less room male spline broach diamond tools.
2. Broaches the diamond blades surface being processed by different parts which can be divided into Dan Wei and at fullback.
3. Broach according to the structure can be divided into the wall to make each other, make each other hydrocarbons, assembled and tipped-in.
4. Used in different ways by picking knife can be divided into broaches, visiting pad Wei Wei and Ying wall.
5. Broach working part of the tile saw blade structure parameters are: fish, so the amount of /:, on the front of each tooth fish eight
Width 5. , And the adjacent teeth flute.
6. Broaching cutting layer dimensions are: over-pack than the name Yap B "ugly toe Cliff Kennedy was a guard at Collage area plastic.
7. Broaching ways: Jinxing Li, male silk arts and mutual funds.
8. Layered broaching into each other once PCT Kyu and composition.
9. Broach test are: Tanga while granite polishing pad I was picking teeth, and pick up the Star Fort Gordon, David Fish degrees picking pad test.
10. Currently in production mainly by promoting the use of less room male spline broach diamond tools.
2013年8月26日星期一
cutter mold industry consumption characteristics
Diamond tool manufacturers say that in order to achieve mold lean manufacturing, mold enterprise scientific organization tool procurement and inventory management, need to study and metal drill bits explore how to ensure that the production line functioning circumstances reduce tool inventory of funds used to optimize the tool's minimum inventory settings, the tool the starting point of purchase, purchase frequency and reasonable tool procurement quantities, to establish an effective early warning system tool, emergency response mechanisms and rapid response mechanism, there is a scientific and effective way tracking, status monitoring tool inventory and carbide saw blades procurement status. It is understood that 68.5% of the total cost of the user enterprise cost of tools for less than 3%, and developed the tool manufacturing costs accounted for about 4% of the production costs, constitute a big gap, which is caused by the low level of China's manufacturing cutting a factor.
China mold industry is fragmented, low-scale, low-level phenomena, China mold manufacturer is only a handful of a few particularly large scale, and the remaining are mostly small and medium scale. These conditions determine the mold industry users of the tool features: procurement volume increased, and the number of frequent purchases, ie up to two months or so purchasing one, this reflects the consumer market is relatively mature, the mold industry in developing the budget tool users more inclined on flexibility, rather than retaining excess inventory. Meanwhile, the ring saw blades user purchases the flexibility for those who have not yet entered the tool provider, the market provides ready access to opportunities. As demand procurement, have been replaced with another brand competition is also increasing.
China mold industry is fragmented, low-scale, low-level phenomena, China mold manufacturer is only a handful of a few particularly large scale, and the remaining are mostly small and medium scale. These conditions determine the mold industry users of the tool features: procurement volume increased, and the number of frequent purchases, ie up to two months or so purchasing one, this reflects the consumer market is relatively mature, the mold industry in developing the budget tool users more inclined on flexibility, rather than retaining excess inventory. Meanwhile, the ring saw blades user purchases the flexibility for those who have not yet entered the tool provider, the market provides ready access to opportunities. As demand procurement, have been replaced with another brand competition is also increasing.
2013年8月19日星期一
vitrified diamond wheel diamond and ceramic binder
Natural diamond tools currently used mainly for copper and copper alloys and gold, silver, rhodium and other precious metals, and special parts of the ultra-precision mirror processing, such granite blades as a disk recorder, an optical mirror, a polygon mirror and the second curved mirror and so on. But its crystalline anisotropy, the tool expensive. PCD performance depends on the content of diamond grains and cobalt, cemented carbide tool life (WC substrate) of the tool 10 to 500 times. Mainly used for a variety of non-ferrous metals such as turning of aluminum, copper, magnesium and its alloys, tungsten carbide and wear strong fiber reinforced plastic materials, metal matrix composites, wood and other non-metallic materials. When cutting speed, feed rate and depth of cut depends on processing conditions and the hardness of the workpiece material.
Vitrified diamond grinding wheel with diamond and vitrified common characteristics, and general corundum, silicon carbide abrasive compared to its strong grinding, grinding temperature is relatively low, abrasive wear is relatively small; can be adapted to a variety of The role of the cooling fluid; grinding abrasive good shape retention, high precision grind the workpiece; abrasive there are more pores, grinding and heat conducive chip, clogging, easy to burn the workpiece; mill with glass blades good self-sharpening, finishing a long time interval, trimming easier. Therefore, vitrified diamond grinding wheel used in some foreign countries is increasing.Synthetic polycrystalline diamond compact (PDC) properties and applications close PCD tool, mainly used in non-ferrous metals, tungsten carbide, ceramics, non-metallic materials (plastic, hard rubber, carbon rod, wood, cement products, etc.), composite materials such as cutting, gradual replacement carbide cutting tools. Because the diamond particles bonded to ask some residual metal and graphite, in which the bonding metal or showed coalescence vein-like distribution state will reduce tool wear and life. In addition there is a metal residue solvent, solvent metal in direct contact with the diamond surface. Lower (PDC) oxidation resistance and tool heat resistance, the cutting tool is not stable enough. Thick Diamond Tool preparation process is complex, because of the sds plus drill bits low melting point metals and their alloys and diamond has a high interfacial energy between. Diamond is difficult to be generally low melting point solder alloy infiltration. Weldability poor, difficult to produce complex geometry tool, it can not be applied TDF welding tool in high-speed milling. Diamond-coated tools can be applied to high-speed machining, because in addition to diamond coated tools have excellent mechanical properties, diamond coating process can be prepared any complex shape cutters for high speed machining aerospace materials such as aluminum alloy and refractory processing of non- metallic material such as graphite electrodes.
Vitrified diamond grinding wheel with diamond and vitrified common characteristics, and general corundum, silicon carbide abrasive compared to its strong grinding, grinding temperature is relatively low, abrasive wear is relatively small; can be adapted to a variety of The role of the cooling fluid; grinding abrasive good shape retention, high precision grind the workpiece; abrasive there are more pores, grinding and heat conducive chip, clogging, easy to burn the workpiece; mill with glass blades good self-sharpening, finishing a long time interval, trimming easier. Therefore, vitrified diamond grinding wheel used in some foreign countries is increasing.Synthetic polycrystalline diamond compact (PDC) properties and applications close PCD tool, mainly used in non-ferrous metals, tungsten carbide, ceramics, non-metallic materials (plastic, hard rubber, carbon rod, wood, cement products, etc.), composite materials such as cutting, gradual replacement carbide cutting tools. Because the diamond particles bonded to ask some residual metal and graphite, in which the bonding metal or showed coalescence vein-like distribution state will reduce tool wear and life. In addition there is a metal residue solvent, solvent metal in direct contact with the diamond surface. Lower (PDC) oxidation resistance and tool heat resistance, the cutting tool is not stable enough. Thick Diamond Tool preparation process is complex, because of the sds plus drill bits low melting point metals and their alloys and diamond has a high interfacial energy between. Diamond is difficult to be generally low melting point solder alloy infiltration. Weldability poor, difficult to produce complex geometry tool, it can not be applied TDF welding tool in high-speed milling. Diamond-coated tools can be applied to high-speed machining, because in addition to diamond coated tools have excellent mechanical properties, diamond coating process can be prepared any complex shape cutters for high speed machining aerospace materials such as aluminum alloy and refractory processing of non- metallic material such as graphite electrodes.
2013年8月8日星期四
the diamond wheel diamond place
Transition index equal to the diamond layer adjacent to the substrate
secure in the sector. Our base for convergence abrasive layer and in the use of
time by flange firmly clamped grinding spindle.
Suri environment outside as more rounded shape. There is not a diamond
wheel diamond produced from. It may be divided into three layers, namely task
layer, the tct blades substrate, the transition layer. As long as the task layer is called
the diamond layer, the abrasive agent and filler compact form determines its
seems like diamond to do tough weakness. Transition layer and the sds hammer drill bits substrate are
non-diamond layer.
Even as a diamond grinding wheel sand root arrived with its most empty
thinking is to see consistent use of materials abrasive. Its primary organs are
made of metal powder, resin powder, ceramic and brick saw blades metal plating as liaison agent.
How the diamond wheel on three disjointed comprehensive alone. Like a
corporate team, this three Qianan choice with a good grade diamond wheel
diamond place.
secure in the sector. Our base for convergence abrasive layer and in the use of
time by flange firmly clamped grinding spindle.
Suri environment outside as more rounded shape. There is not a diamond
wheel diamond produced from. It may be divided into three layers, namely task
layer, the tct blades substrate, the transition layer. As long as the task layer is called
the diamond layer, the abrasive agent and filler compact form determines its
seems like diamond to do tough weakness. Transition layer and the sds hammer drill bits substrate are
non-diamond layer.
Even as a diamond grinding wheel sand root arrived with its most empty
thinking is to see consistent use of materials abrasive. Its primary organs are
made of metal powder, resin powder, ceramic and brick saw blades metal plating as liaison agent.
How the diamond wheel on three disjointed comprehensive alone. Like a
corporate team, this three Qianan choice with a good grade diamond wheel
diamond place.
2013年7月24日星期三
large pores in the production and selection wheel
Large pores wheel production principle and characteristics
Large pores usually selected silicon carbide and masonry saw blades corundum grinding wheel and other abrasive to produce, such as commonly used are green silicon carbide (GC), black silicon carbide (C) and corundum (A), corundum (WA), such as several of these abrasives brittle and sharp, high hardness, good thermal and electrical conductivity; abrasive particle size (36 # ~ 100 #); binding agent (usually a ceramic binding agent); Hardness (G ~ Q levels); shape (a flat shape, concave, cup, bowl or dish, etc.); pore size (approximately 0.7 to 1.4 mm).
Large pores grinding wheel rotating at granite core bits high speed, because of the centrifugal force, the wheel center a vacuum state, the air flow speed and form a vortex around the wheel to accelerate the cooling of the workpiece due to heat dissipation, so is suitable for processing a large number of heat-sensitive material (eg magnet tungsten silver alloy) thin-walled workpieces and dry grinding of carbide cutting tools, machine tool guide and so on. Another large pores clogging wheel also has high durability and cutting ability and good.
Some wheel manufacturers through a special method of the wheel internal porosity increases, so as to achieve compliance processing requirements. Large pores in the grinding wheel with high durability, cutting ability and can not easily be sum game, etc., it is more suitable for concrete pads grinding metals and plastics, and other non-metallic leather and rubber coarse and fine grinding. At the same time, but also because it has a fast heat dissipation characteristics, so in grinding large number of heat-sensitive materials, thin-walled workpieces and dry grinding process medium with good results. Large pores and other general grinding vitrified basic method for producing the same. Difference is in the amount of the ingredients plus a pore agent, making the wheel completely evaporated before firing or burned, generating large pores.
Large pores usually selected silicon carbide and masonry saw blades corundum grinding wheel and other abrasive to produce, such as commonly used are green silicon carbide (GC), black silicon carbide (C) and corundum (A), corundum (WA), such as several of these abrasives brittle and sharp, high hardness, good thermal and electrical conductivity; abrasive particle size (36 # ~ 100 #); binding agent (usually a ceramic binding agent); Hardness (G ~ Q levels); shape (a flat shape, concave, cup, bowl or dish, etc.); pore size (approximately 0.7 to 1.4 mm).
Large pores grinding wheel rotating at granite core bits high speed, because of the centrifugal force, the wheel center a vacuum state, the air flow speed and form a vortex around the wheel to accelerate the cooling of the workpiece due to heat dissipation, so is suitable for processing a large number of heat-sensitive material (eg magnet tungsten silver alloy) thin-walled workpieces and dry grinding of carbide cutting tools, machine tool guide and so on. Another large pores clogging wheel also has high durability and cutting ability and good.
Some wheel manufacturers through a special method of the wheel internal porosity increases, so as to achieve compliance processing requirements. Large pores in the grinding wheel with high durability, cutting ability and can not easily be sum game, etc., it is more suitable for concrete pads grinding metals and plastics, and other non-metallic leather and rubber coarse and fine grinding. At the same time, but also because it has a fast heat dissipation characteristics, so in grinding large number of heat-sensitive materials, thin-walled workpieces and dry grinding process medium with good results. Large pores and other general grinding vitrified basic method for producing the same. Difference is in the amount of the ingredients plus a pore agent, making the wheel completely evaporated before firing or burned, generating large pores.
订阅：
博文 (Atom)