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!

Detection of diamond grinding wheel performance

Diamond grinding wheel used more widely, it is how prospects like it, let Xiaobian together to explore with you the next issue it. Diamond wheel is grinding carbide, glass, ceramics, gems high brittle material effects tools. In recent years, with the rapid development of high-speed grinding ultra-precision grinding technology, put a higher demand on the wheel, ceramic resin bonded grinding wheel can not meet production sds hammer drill bits  needs, metal bonded grinding wheel because the combination of high strength, good formability, Notable features long life and production has been widely used. Metal-bonded diamond grinding wheel manufacturer in different ways according to the main sintering, plating two types. In order to give full play to the role of super abrasive abroad since the early 1990s, beginning with high temperature brazing process to develop a new wheel, namely single-temperature brazing superabrasive grinding wheels, grinding wheels currently still in the research and development of this stage.
Detection method using DHM-3 test machine, you can use the following two methods to achieve the detection performance of the diamond grinding wheel:
By detecting the consumption of the test piece and the grinding wheel, the wear of both the calculated ratio reflects the diamond polishing tools  performance of the grinding wheel. The steps are:
 ① were weighed and the weight of the wheel test block Gl, G2, and then the wheel and test block mounted on the DHM-3.
  ② Set consumption test block, before grinding to L1, after grinding to L2.
 ③ wheel set line speed test block wobble.
 After the touch screen said data set to open the equipment operation; ground when the test piece is set to a minimum when L2, DHM-3 automatically stops running and the running time of the record process. At this point, remove the wheel and test block, and then were called whichever weight G1 ', c2', wear ratio calculation.
Through attrition ratio reflects the grinding wheel performance. Wear ratio is smaller, more wearable wheel. Running time core bits for concrete  mainly reflects the sharpness wheel, when asked to run shorter, indicating wheel more sharp.
When asked by detecting running performance reflects the diamond wheel grinding wheel. Through experimental study, we found that the more appropriate square enamel Taiwan prosecutors guillotine ceramic diamond grinding wheel and grinding wheel performance ceramic CRN, because these two resin diamond grinding wheel to abrasion than much consumption can therefore be ignored wheel ship

CVD diamond coating and the difference between the amorphous diamond coating

(1) CVD diamond coated with amorphous diamond coating difference
Amorphous diamond ( also called diamond-like carbon - Annotation ) coatings are deposited using a PVD process carbon . It has a key part of the diamond SP3 , SP2 also has some carbon bond ; their sds hammer drill bits  film hardness is high, but lower than the hardness of diamond film ; thickness than we usually deposited diamond film to be thinner . Machining graphite , amorphous diamond coated tool life is uncoated carbide tools 2-3 times. In contrast , CVD diamond is deposited using CVD process pure diamond coating , machining graphite carbide cutting tool life is 12-20 times , thereby reducing the number of tool changes to improve the reliability and accuracy of processing consistency.
( 2 ) can not be hardened steel with diamond tooling
Diamond from carbon atoms. Certain materials when heated , sucked from the carbon atoms in diamond and carbide is formed in the workpiece . Iron is one such material . Cutting tools with diamond iron group material , the friction generated heat causes diffusion of carbon atoms in the diamond into the iron , the resulting diamond coating due  diamond blade circular saw to chemical wear and premature failure . 
( 3 ) re-grinding and ( or ) heavy coating of diamond coated tools is difficult to guarantee the quality of the coating formed on the surface as the tool for the pure diamond , so the tool with a diamond wheel for re-grinding takes a very long time. In addition , the growth of the diamond tool used . Preparation of the tool will change the chemical properties of the surface , since the coating of this chemical properties requires very precise control, so the effect of the tool recoating difficult to be guaranteed .
( 4 ) diamond coated tool life varies
Like any other tool , diamond coated tool life varies , depending on the material to be cut , the choice of feed rate and cutting speed , and the geometry of the workpiece and so on. Generally, diamond-coated graphite machining tool life is uncoated carbide tools 10-20 times , in some cases, may even be longer. This way , you can use a tool to complete almost any processing tasks without tool change due to tool wear and to avoid disruption and recalibration process , making it possible to achieve unattended machining . The processing of the composite material , is entirely possible to obtain a longer tool life.
According to reports, in the processing of high-density glass fiber , carbon fiber and Gl0-FR4 other difficult cutting blades  machining composite materials , diamond-coated tool life up to uncoated carbide tool 70 times .
( 5 ) diamond coating spalling can prevent flaking coating of diamond -coated tools are a serious problem , but also a common problem ( especially in the processing of materials like carbon fiber ) , will lead to unpredictable tool life . The late 1990s , interfacial chemical properties were identified as affecting the diamond coating adhesion properties of important factors. By selecting good compatibility Carbide chemical characteristics, the use of appropriate technology and reasonable pre- deposition reaction conditions , it is possible to reduce or eliminate the diamond coating spalling , stably smooth wear patterns . Observed under the microscope normal wear diamond coated tool , you can find the diamond was worn until stable carbide substrate , without chipping or peeling .

quality control has guiding significance

Sheet wheel performance depends largely on the merits of using abrasive quality, good quality abrasives, grinding wheels, high grade, and in the more expensive price. As the domestic high-grade bauxite resource depletion, a variety of raw materials and coal prices in mid-rise, coupled with energy saving the environment forced shut down, corundum prices are cutting discs  rising fast, from time to time will be in short supply. How rational use abrasives, improve market competitiveness, is the most important enterprises grinding technology considerations.Best approach is to not participate in the core sheet wheel portion of the cutting action of poor quality with low prices instead of secondary abrasive, abrasive cutting quality full performance, lower manufacturing costs. This approach resin bolts and large diameter cylindrical grinding wheel resin grinding wheel has been widely used. For thin grinding wheel, since the intermediate screening, the bottom and the top to separate the feed, if the external and the core are bandsaw blades  stepwise feeding, in the process to implement quite difficult, is still only vision in the future, if successful, cost reduction, profit improvement , on sheet wheel manufacturing is undoubtedly a far-reaching "technological revolution."Compare prices now wear suitable strategy for various consumer groups, in accordance with abrasive made of different grades of abrasive products, the best abrasive used in most need sheet wheel, avoiding production of low-grade abrasive grinding wheels with high-grade, as far as possible best use, cost-effective in improving the premise, a great effort for each grade of the product have done "extreme."High-grade sheet wheel stable, targeted, reproducible tamping rammer  production has generally adopted a sand, special products and even to use zirconium corundum, calcined alumina abrasive and post-processing. The market is dominated by imported products, most cost-effective production of high sheet is not high, not discrimination, targeted not strong, still need further research and development efforts.

wheel speed hazards arising from the work

Not only cause wheel breakage near in death or serious injury, but can also cause serious damage to the plant or housing. Although the manufacturer has taken various preventive measures, but if used carelessly careful wheel still occur occasionally break or crack accidents. Applications to take the following precautions concerning:1. Handling and  diamond bandsaw blades storageIn shipping and handling process, if moisture enters phenolic resin bonded grinding wheel, it will reduce its strength; ceramic bonded grinding wheels and, then very sensitive to temperature changes repeatedly; uneven absorption of moisture causes the wheel out of balance . Therefore, in the loading and unloading wheel must be handled with care, and to be placed in a dry and sheltered place, in order to maintain the grinding wheel normal state.2 crack detectionDeal with the new wheel checked to ensure drying and grinding wheels from 9 inch saw blade  damage. The easiest way is to tap the wheel with a mallet. Intact ceramic grinding wheel will be issued by the crisp sound. Wheel with an organic adhesive bond will be issued muffled sound, but with a defective wheel crushing sound is emitted distinction. For suspected wheel, they should check that the delivery person.3 TestOfficial use of the new wheel should be performed before full trials and should be carefully observed. In the Diamond tool  wet, the wheel should be idling for some time, get rid of the water. Otherwise, the water will accumulate in the lower part of the wheel, causing the wheel imbalance, resulting in next time may burst.

Diamond high hardness and excellent mechanical properties make diamond tools

 Diamond high hardness and excellent mechanical properties make diamond tools for processing a variety of hard materials become indispensable effective tool. Metal base of the diamond matrix adhesion (matrix package Xiang ability) that affect the life and performance of diamond tools is one of the main factors.
The diamond and general metals and  alloys having a high interfacial energy between, resulting in the diamond particles can not be generally low-melting alloy infiltration, poor adhesion, in the conventional manufacturing techniques, the diamond particles alone after the carcass shrink the mechanical gripping force embedded in the metal matrix of the  12 inch saw blade carcass, but not form a strong chemical bonding or metallurgical combine, resulting diamond particles in the work easily with metal base carcass separation, greatly reducing the diamond tool life and performance levels. Most of the diamond impregnated type tool utilization is low, a lot of expensive diamond in the work lost in the litter fall into. Lin Zengdong other first surface metallization using diamond diamond surface to impart a number  drill bits of new features, such as excellent thermal conductivity, good thermal stability, improving its original physical and chemical properties of the metal or alloy to improve its wettability of the solution, etc.
Diamond surface metallization problem , it caused a domestic diamond tool manufacturing industry's attention. Many people committed during the sintering process to achieve the diamond surface of metal in the matrix material or on the diamond surface to add the pre-glue strong carbide metal powder (which is not heated before the diamond, not associated with a chemical coating reaction only belong diamond coating) to expect them hole saw blades  to realize the sintering process chemical bonding of the diamond. Although the literature has demonstrated some metal such as tungsten (not oxidized) at a lower temperature (800 ℃ or so) WC can be formed on the surface layer of the diamond, but the diamond surface to achieve the pre-metallization process used to view, to be in a vacuum conditions, 600 ℃ heating above one hour to get the desired adhesion. Impregnated with the most commonly used cutting tool diamond sintering conditions of view, non-vacuum or low vacuum of not more than 900 ℃ heated for 5 minutes or so

diamond saw blade speed by equipment conditions

(1) diamond blade speed: in practical work, diamond saw blade speed by equipment conditions, saw the quality and the nature of the restrictions before sawing stone. From the optimum blade life and cutting efficiency, it should be selected depending on the nature of the stone saw blade speed. Sawing carbide drill bits  granite, the blade speed at 25m ~ 35m / s within the selected range. For high quartz content and difficult cutting granite, remove the blade speed limit is appropriate. In the production of granite tiles, the use of smaller diameter diamond saw blade, wire speed can reach 35m / s.
(2) Cutting Depth: diamond cutting depth is related to wear, effective cutting, saw cutting force conditions and the 12 inch saw blade  nature of the important parameters of stone. Generally speaking, when the line speed diamond saw blade is high, should be selected for cutting of small depth, from the current technology, the cutting depth of the diamond can choose between 1mm ~ 10mm. Usually with a large diameter saw blade cutting granite blocks, the cutting depth can be controlled within 1mm ~ 2mm between the feed rate should be reduced at the same time. When the line speed diamond saw blade is large, a large cutting depth should be selected. But in performance and tool strength saw the extent permitted, should try to take a greater depth of cut for cutting to improve cutting efficiency. When the machined surface colde saw blade  when requested, should be used small depth of cut. (3) diamond saw blade feed rate: Feed speed incurs sawing stone feed rate. Its size sawing rate impact, the force and the cutting blade heat dissipation area. Its value should be based on the nature of the selected cutting stone. Generally speaking, sawing softer stone, such as marble, may be appropriate to increase the feed speed, if the feed rate is too low, more conducive to high cutting rates. Sawing fine structure, relatively homogeneous granite, may be appropriate to increase the feed speed, feed rate is too low if the diamond blade easily be polished. But sawing UNEVEN coarse granite structure, should reduce feed speed, otherwise it will cause the blade vibration and reduce fragmentation leading diamond cutting rates. Granite cutting feed rate is generally 9m ~ 12m/min within the selected range.

carbide saw blade quality and quality of processed products are closely related

Carbide saw blade containing the type of alloy, the substrate material, diameter, number of teeth, thickness, profile, angle, diameter and other parameters that determine the processing capacity grinding cup wheels  and cutting blade. Select the saw blade sawing according to the type of material, thickness, cutting speed, cutting direction, feed speed, kerf width requires the correct selection of blades.
(A) the choice of carbide species
Commonly used types of tungsten carbide cobalt (code YG), tungsten titanium category (Code YT). Since tungsten carbide cobalt impact resistance is better in the wood processing industry more widely used. Commonly used in wood processing model YG8-YG15, YG behind the numbers indicate the percentage of cobalt, cobalt content increases, the alloy impact toughness and flexural strength has increased, but the hardness and wear resistance has declined, to be selected according to the actual situation.
(B) the choice of substrate
1.65Mn spring steel elastic and plastic, material economy, good hardenability, the heating temperature is low, easy deformation can  General purpose blade be used for less demanding requirements of the cutting blade.
(2) high carbon tool steel carbon high thermal conductivity, but by the temperature of 200 ℃ -250 ℃ sharp decline in its hardness and wear resistance, heat deformation, poor hardenability, tempering longer easy to crack. Materials such as tool manufacturing economy T8A, T10A, T12A and so on.
3 alloy tool steel and carbon tool steel, heat resistance, wear resistance, good processing performance, heat distortion temperature of 300 ℃ -400 ℃ suitable for manufacturing high-grade alloy circular saw blades.
4 high-speed tool steel has good hardenability, hardness and rigidity, less heat deformation, is ultra-high strength  core bits for concrete steel, high-grade thermoplastic stable suitable for manufacturing thin blades.
(C) the choice of diameter
Saw blade diameter with the use of cutting equipment and cutting the workpiece thickness. Saw blade diameter is small, the cutting speed is relatively low; Saw blade diameter and sawing equipment requirements for the necessary high, while the cutting efficiency is high. Depending on the diameter of the blade circular sawing machine model selection with a diameter matching blades.
Standard parts diameter: 110MM (4 inches), 150MM (6 inches), 180MM (7 inch), 200MM (8 inches), 230MM (9-inch), 250MM (10-inch), 300MM (12-inch), 350MM ( 14-inch), 400MM (16-inch), 450MM (18-inch), 500MM (20-inch), etc., precision panel saw blade multi bottom slot designed to 120MM.
(D) selection of teeth
Serrated teeth, in general, the more teeth, in the unit time, the more the cutting edge, cutting as possible, but the number of cutting teeth carbide required more and more, the high price of the blade, but too close serrated , teeth of the chip becomes small, easy to cause the blade fever; another jagged too, when the feed rate mis-match, then cut each tooth small amounts, will exacerbate friction with the workpiece edge, affecting the life of the blade . Typically tooth spacing 15-25mm, material selection should be based on a reasonable cutting teeth.

Below are several commonly used tool

 for example, discusses the design of single-crystal diamond tool.
Turning your computer's hard substrate
Computer hard disk substrate is used for information storage, the material is aluminum or aluminum alloy, the surface roughness of the substrate, the lower storage density, thus reducing the surface roughness of the processing is critical. The same time as the substrate thickness is less than 0.9mm, in order to prevent deformation, should minimize the cutting forces and extrusion processing.
Cutting hard substrate with masonry blades   good rigidity and stability using ultra-precision lathe disk. Cutting depth of about 0.01 ~ 0.02mm, the feed is about 0.5mm.
Rigid disk substrate of single crystal diamond tools shown in Figure 1 the shape of the tip. Head has two main cutting edges, the processing can influence the infeed. Longer wiper ensures two directions machining wiper flank wear will not interfere with each other. Two master in the feed direction of the rake face downtilt 5 °, to obtain about 2.5 ° negative rake angle, the chips flow surface to be processed, in order to avoid scratching the chip surface has been processed. Very sharp diamond tools, edge radius is smaller than 100nm, 5 ° after the angle of the flank face has been sufficiently reduced to the machined surface of the extrusion and friction.
The key quality requirements of the tool blade and the tip is observed under the microscope at 500 times the defect. The design principle is equally applicable to other ultra-precision mirror surface processing tool.
Jewellery approved spent knife
Jewellery approved spent knife used in gold, silver jewelry milled leaf-shaped patterns, is actually a molding cutter, its granite polishing pad  head shape shown in Figure 2. Sharp knife at between 110 ° ~ 150 °, to accommodate different size and depth of the pattern processing. As approved spending machine structure is simple, poor rigidity, vibration, combined use of intermittent dry cutting, processing conditions are very poor, so the batch spent knife blade needs to have a strong impact resistance. 5 ° negative rake angle and 1 ° ~ 1.5 ° angle can effectively increase the rear edge strength, while the smaller rear corner between the tool and the workpiece can make proper squeeze by, the cutting will not "guilty" to prevent cutting vibration In the machined surface "chatter."
Batch processing jewelry case and took the knife and some high-light decorative parts with a tool roughly the same design principles, such tools requires 200 to 500 times the blade under the microscope without chipping.
Contacts Tool
Very soft contact lens material, and  Diamond tool a certain tensile strength, generally circular material cutter blade of the knife is too large, difficult to make cutting. Since there after turning a polishing step, thus turning the surface roughness of only required to achieve Ra0.1μm, turning the main purpose of having a convex curved surface shape precision, the main requirements of the tool sharp blade sex. The head shape of the lens turning tool shown in Figure 3. To meet the needs of the cutting surface of the concave circular arc, using a 15 ° relief angle, requires the blade under a microscope at 100 times without chipping.
3 single crystal diamond tool use and maintenance
Single-crystal diamond tool brittleness, combined very sharp shocks prone to chipping, so far as possible in a smooth, vibration-free working conditions of use; while also maximizing the workpiece and tool chucking rigidity and the entire rigidity of the system to increase its anti-vibration capability. Cutting the amount of not more than 0.1mm appropriate.

The 20 diamond truing tool tips

Drill machine is a simple, lightweight , economical tunneling machine , the stone block mining machine important , are the percussion device , and the need for both oil and water and gas with the use of a variety of auxiliary media , which on the one hand the reliability of the device , security put forward higher requirements ; hand, but also to the operation and maintenance of equipment to bring some difficulties. Scientific  diamond blades use and maintenance of drilling machines, not only to ensure safety in production , to prevent fatal accidents is important, but also to improve equipment performance , working life, production efficiency is important.
Preparations before start
1 , the new purchase to the drilling machine, inside coated with anti-rust grease viscosity , clear and must be removed before use . Reload , all moving parts to be lubricated table Mina . Installed, the drilling machine is turned pressure gas line , open a small wind operation , check its functioning properly.
2 , the automatic oiler inject lubricating oil, used oil is 20 #, 30 # , 40 # oil . Loaded oil containers should be clean , covered , to prevent rock dust and dirt into the oiler .
3 , inspection workplace pressure and water pressure. Wind pressure is 0.4-0.6MPa, air pressure is too high will tile saw blade  accelerate the mechanical parts of the damage , too low will reduce drilling efficiency and corrosion mechanical parts. Pressure is generally 0.2-0.3MPa, water pressure is too high, the water will destroy the lubrication poured inside the machine , drilling machine efficiency and reduce corrosion mechanical parts ; too low flush adverse effects .
4, using Qianzai meets quality requirements , the failure of Qianzai prohibited.
5 , duct access drilling machines, should be placed inside the dirt off the gas will blow . Connection pipes money to waterproof joints rinse the dirt, wind and water pipes must be tightened to prevent shedding wounding .
6 , the solder tail into the drilling head , forced clockwise Qianzai If we can not move, that has jammed inside the machine phenomenon , should be promptly treated .
7 , tighten the bolts , open air check the functioning of the propeller , in normal operation can begin work .
8 , rail drilling machine should stand a good prop , and check the functioning of the propeller , air leg rock drill rock drill machine and upward air leg must check the degree of flexibility and so on.
9 , on request of the hydraulic rock drill hydraulic system has a good seal to prevent contamination of hydraulic oil , hydraulic oil to ensure that there is constant pressure.
Precautions when working
1 , opening the eyes should be rotated slowly until the depth of the hole to reach 10-15mm later, and then gradually moved to full operation . In the drilling process, according to the drill rod hole straight forward design , and is located in center of the hole .
2 , should be reasonable in the drilling test drive shaft thrust. Shaft thrust is too small, machine-generated bounce , vibration increases , drilling efficiency ; axis thrust too much , Qianzai top tight eyes, so that the machine is operating in overload , easy to premature wear parts , making drilling slowed .
3 , drilling machines jamming , should reduce the thrust axis , you can gradually become normal. If invalid , should be immediately shut down. First slowly rotating drill rod with a wrench , and then open the gas pressure Qianzai slowly rotating , prohibit the use of the concrete polishing pads  approach to beat Rod .
4 , the situation often observed row powder . Pink row is normal, mud along slowly outflow orifice ; contrary, to forcefully blow holes. If you are still valid , you should check Qianzai water holes and solder tail state, and then check the water needle , replace the damaged parts.
5 , to observe the oil reserves and oiling conditions , regulate the fuel injection . Oil operation, easy to premature wear of parts . When the oil is excessive, will cause face pollution.
6 , the operation should pay attention to the sound of the machine , observe its functioning , identify problems and timely treatment.
7, pay attention Qianzai working condition , abnormal timely replacement .
8, the operation up rock drill air leg should pay attention to the gas , to prevent drilling machines made ​​bobbing

on the blade cutting

1, idle: in particular, the first use of a new base, the need to idle for about 30 minutes, the summer hot season needs to bring water idling, which aims to further eliminate welding head when matrix effects and enhanced blade rotating at high speed state to maintain sand paper  the intrinsic quality of memory.
2, blocks of not less than 0.5m3, and placed securely, the bottom should be well-wood pad, plug SUCOOT prison, blocks should be located in symmetrical positions workbench, workbench cars and blocks to ensure the stability, without shaking , shaking phenomenon.
3, according to the blocks of length, width, height adjusting limit switch, the blade lift and skip the trip in a reliable and effective range. Saw blade should leave before sawing blocks up to 10 ~ 20mm. After sawing, saw cut should be left away from the blocks at the bottom of 20-40mm, knife blade to go about running, you should exit all blocks Jukou the blade from not less than 150-200mm, to prevent the blade hit Shortage material.
4, the blade idling stable only after a trial cut blocks are not allowed contact with the blade starts cutting edge blade, cutting blade rotation are not allowed to stop, to withdraw Jukou before stalling.
5, cutting blocks are shaking if found should immediately stop cutting the blocks to be firmly fixed before it can continue working, cutting, are not allowed to move in any blocks.
6, the cutting blade and found a significant slowdown or even clip knife phenomenon, it may be belt slippage, compression nut loose or too large depth of cut, the cutting speed is too fast and other reasons, should be timely adjusted.
7, the line speed should be  metal drill bits processed stone hardness and wear resistance to adapt, line speed table are recommended cutting different types of stone. Tip: line speed is not high, an increase in cutting efficiency, will reduce the life of the blade.
8, feed rate, depending on the processing of the material properties of each material when the cutting depth must have a certain range of the feed rate, if the speed is too high, will accelerate the wear of diamond or even fall off, causing the blade consumption too fast, if the speed is too low, then they will make the process of self-sharpening blades can not be normal, so "blunt, skid" lost cutting capacity. Under normal circumstances, the feed speed is slower when cutting, sawing should be in uniform for the common typical materials, when the cutting depth is 20mm, recommend the following feed rate table for your reference, when the thickness changes, the cutting speed can be Press the cutting area (cm2/min) to conversion. Tip: The first feed or each piece of board should be reduced by half for the first three walks.
9, the cutting depth for medium hard stone such as marble, limestone cut through at once, for hard stone and abrasive such as large granite, sandstone should step cutting, saw cutting granite monolithic, eating knife depth is generally 10-20mm , depth of cut marble cutting 50-100mm, more than double-sided cutting hard granite, depth of cut of each 3-5mm, should be based on the hardness of the stone, using a saw blade and the fixed performance, efficiency recommend the following table for your reference. Common materials cutting efficiency table Note: "1" indicates low power finishing; "2" indicates a high power roughing.
10, the blade rotation direction of the same stone as the feed direction along the cutting, contrary to reverse cutting, and reverse cutting, due to an upward vertical force component, in the form of stone off potential, therefore, is a solid stone, under the same conditions Next, you should try using smooth cutting. When using reverse cutting, cutting depth to be reduced, generally reduced to shun cutting 1/3-1/2.
11 In summary, the basic requirements for wet saw blades  selection cutting process are: low hardness, good stone cutting performance can be deeply walking, brisk walking contrary shallow cut, ie corresponding to the same stone and saw and saw blade should be cutting efficiency, cutting board, good quality, long life blade and matrix process parameters prevail, the four complementary and mutually dependent, must not generalize. For example, when the saw blade cutting speed can not be maintained, indicating a blunt blade, cutting depth should be reduced while increasing the cutting speed to sharpening blades.

diamond cutter trimming scope

We usually use the knife at home, not agile, and will look for stones to grind it, not agile how diamond tool repair? In the dressing precision grinding wheel diamond tools (such as internal grinding), you should use a sharp diamond shaped stone, diamond tool if a large  concrete crack chaser amount of high-precision grinding wheel, we recommend using a spherical diamond larger contact area in order to ensure that from fine grind to a coarse trimming range.
Small blade cutter and other cutters classes are primarily used in the following hard metal materials processing or narrow and deep grooves cut milling can also be non-metallic, superhard materials and titanium blade cutter blade cutter main used for cutting hard materials (heat-resistant steel, stainless steel, high-strength steel) milling.
  Carbide blade carbide (more precisely, tungsten carbide and titanium carbide) is a cutting tool of any kind are common materials: for example, saw blades, lathe tools, drills, milling cutter and  cbn grinding wheels dental drill engraving are generally made with carbide. The reason is widely used in such carbide tool, because it is with most other materials remain sharp longer. In addition, some carbide ball pen use, because the pen is more durable.
 Carbide blade eventually become dull. You can be as polished as ordinary steel tools grinding them, but they are very hard, so you want to use a different grinding tools. Usually a diamond coated cemented carbide tools or wheels.
 Diamond Segment Features: Blade's work performance is extremely good, especially in the granite cutting speed, long life, straight cut, do not jump edge, etc. Various specifications can be customized according to customer requirements.
The chemical composition of the sds plus drill bits  diamond C, with the carbon and graphite polymorph variants. In mineral chemical composition, the total content of Si, Mg, Al, Ca, Mn, Ni and other elements, and often contain Na, B, Cu, Fe, Co, Cr, Ti, N and other impurity elements, and carbohydrates.

single cone drill bit and other comparative

Bearing on the single cone bit, teeth, cone dorsal and disposal flow was enhanced and improved, according to the  cbn grinding wheels construction of various problems. Improved single cone bit in the application of slim hole drilling was a great victory, overcoming the previous single cone bit various defects, eliminating the single cone bit teeth easily fall dorsal easily pierced, too more from the drilling and drilling higher interest rates and other issues, field application is effective and can improve the sidetrack drilling speed, shorten the drilling cycle, thereby reducing drilling interest, can be applied by oblique drilling, more suitable for steady oblique drilling, more suitable for slim hole drilling.
Now commonly used in small-size drill mainly tricone bit, PDC drill bits and single cone bit, PDC drill bit due to the  sds plus drill bits structure and working principle of limitation. Among them, three cone bit bearing most obvious disadvantage is small in size, mainly by the impact, crush and squeeze a small way from scraping rock breaking, drill teeth touch bottom number changes, dental discontinuity, short bearing life .
Not only work when torque is large, the  cutting tools teeth washing and cooling difficulties, and its strong sensitivity of lithology, stratigraphy and is not suitable for drilling hard and soft gravel staggered formation; single cone bit more applicable than three cone drill in both strength and ductility are large formations, while for PDC bit difficult to deal with hard interlayer and other complex formation, and the structure is simple, bearing a large space, the use of safe, reliable, easy to drill size miniaturization field use to good effect.

power tool is developing developing

The domestic market and the international market capacity, though not as large, but demand is still small, and most of them are professional power tools, the sales price is higher, and thus economic good, as long as the attention to product quality, and constantly consolidate and expand market share, it also has future, the industrial saw blades   same can survive and develop. As the domestic market for power tools power tool quality and brand more critical, whether it is electric tool dealers, or direct users to attach great importance to the quality and brand power tools. Therefore, the concrete polishing pads  market to the good quality, good brand power tool inclination increased. As long as companies, vendors with a good read on the market after market, electric tools need not worry about sales.
Domestic users of electric tools increasingly demanding high quality, especially for product efficiency, weight, life expectancy and other indicators are very concerned. In the  wet polishing pad construction industry, for example, on the quality of domestic power tools mainly reflected as follows: Hammer easy to heat, continuous working time is short, small hammer impact, vibration, the operator can be pressing on into the deep, drill easy to wear, easy to off and so on.
In order to better explore the domestic market, more and more electric tool manufacturers and distributors pay more attention to scientific and technological innovation, quality win, to consolidate and expand new markets. Therefore, the power tool market brand awareness and brand effect is more obvious, a lot of little strength and size of power tools dealers, all of the distribution of a good brand power tools showed high enthusiasm.
And as manufacturers continue to attach importance to corporate brand building, investments in technology, develop new products, electric tools industry to achieve a small power tools from a single product to a diversified, large-scale, modern, large-scale, innovative technology for electric tools Series product direction, and quickly occupied the market ground.