The primary work of GUSHI Diamond toolsthe diamond cutting discs

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.

diamond cutting tools and wear what reasons

Diamond cutter high hardness, long life, has been widely used in various manufacturing industries, the following is a brief look at the diamond tool manufacturing materials
High hardness and wear resistance of diamond cutting edge is very sharp, the blade roughness value is small, low friction  GUSHI metal grinding wheel coefficient, good anti-adhesion, high thermal conductivity, easy to stick the knife when cutting and BUE, machined surfaces good quality. In the processing of non-ferrous metals, energy efficient processing of non-ferrous metals and non-metallic materials, such as copper, aluminum and other nonferrous metals and alloys, ceramics, un-sintered carbide, various fibers and particulate reinforced composites, plastics , rubber, graphite, glass and a variety of wear-resistant timber (especially solid wood and plywood, MDF and other composite materials). Diamond Tool harder the material, the better the wear resistance, the higher the hardness, the lower the impact toughness, the GUSHI sanding disc for drill  more brittle materials. Tool hard to postpone the use of time as the tool will have some wear and tear, the impact of tool wear reasons, what does? Following a brief temperature difference
Effect of temperature on the blade process mainly manifested in two aspects: First, cause agglomeration of diamond graphite; second is caused by hot carcass Ili diamond and diamond particles resulting from premature loss.
Mill damaged form are the following: abrasive wear, local crushing, crushing a large area, off, binders direction along the cutting speed mechanical abrasion.
By alternating thermal stresses, and also to GUSHI diamond polishing tools  withstand the stress of alternating cutting, fatigue cracks occur locally broken, revealing new sharp edges, is an ideal form of wear; large broken: diamond particles in the Leads when subjected to impact loading, the more prominent grains and grain prematurely consumed; cause early termination tool usage time.

How to make a diamond grinding wheel wear slower reasons

Diamond Wheel in our daily lives has become so widespread, that how can you wear diamond wheel is often slow, you know? If you do not know to give with Xiaobian look at it.
Select the diamond grinding wheel hardness general principle is: the processing of soft metal, in order not to make premature loss of abrasive, then use a hard wheel. Wear resistance and long life. Diamond grinding wheel ratio up to 3500-5500, a hundred times higher than normal corundum grinding wheel, 3-5 times higher than ordinary diamond wheel. When  GUSHI diamond polishing tools processing hard metal, in order to make timely blunt grit off, thereby exposing new abrasive grains with sharp edges (ie, self-sharpening), use a soft wheel. Or because the soft material in the grinding wheel abrasive wear is slow work, without departing too early; latter is because the grinding of hard materials, abrasive wear of the grinding wheel work faster, require faster updated. High efficiency, good overall economic efficiency. Grinding sharp, small grinding force, diamond grinding wheel dressing cycle length, less the amount of dressing, long replacement time; long life cycle, grinding ratio, getting a better economy, use good shape retention, without regular Replace the wheel and wheel dressing, saving time and improving working conditions conducive to machining operations. In the grinding force and grinding conditions are low speed after using diamond grinding wheel, and its distribution on the surface of a large number of angular, consistent diamond abrasive wear reflective facets. This is GUSHI circular blades  mechanical wear due to mechanical friction and superhard abrasive diamond material produced. This wear is gradual, with the amount of wear of the abrasive grinding stroke length proportional relationship.
At higher temperatures the grinding conditions grinding zone, diamond grit diamond wheel on and graphite oxidation and loss. According to the nature of the diamond understood, oxidation, depending on the degree of graphitization of the diamond abrasive crystals integrity, and the degree of graphitization and also on the crystal orientation. Good crystal perfection diamond abrasive, oxidation, low degree of graphitization loss.
On the part of diamond grit diamond wheel surface localized fracture and fragmentation, resulting in whole shedding. Cleavage  GUSHI stone drill bits occurs diamond abrasive damage. Since the crystal cleavage plane of rupture was determined by the crystal structure of factor 7 bond type, intensity and distribution of the generated, which is often generated along the surface of the orientation strength of the final bond. Random distribution of grains to determine their cleavage occurred damage is inevitable.

Ultra-thin cutting wheels grinding characteristics and Precautions

Ultra-thin cutting wheel is mainly used for fine grooves and cut close , generally use deep creep feed grinding method. With grinding depth, feed small speed, large contact area of the grinding wheel and the workpiece , narrow kerf , metal removal rate, high grinding precision, good surface quality and material utilization characteristics. The  ore bits for concrete general rule is as follows : 1 ) the overall thickness of the thin -cut piece wheel ( mostly in 0.5mm or less ) , small diameter (20-100mm), fine granularity, high dimensional and geometric precision, light weight , general conditions in the high- speed next use . Average speed of 5000-40000 rpm. 2 ) . Cutting wheel base body mostly thick (0.5-2mm), diameter (100-200mm), coarse granularity , low accuracy , generally used for low speed large depth of cut conditions. Average speed of 3000-10000 rpm. 3 ) ultra-thin cutting wheel to use more fine-grained , and generally having a thickness thinner abrasive particle size accordingly thinning, good surface quality . However, the finer the particle size of the abrasive cutting sharpness drop corresponding to  diamond bandsaw blades the feed rate is reduced accordingly to adapt the particle size of the abrasive machinability 4 ) . Thin cutting wheel cutting depth generally by the user to set the cutting element , the cutting mostly using creep feed grinding process , the depth of a cut to the . As the cutting wheel so thin, poor cutting conditions ( more than 3 face contact with the workpiece ) , making it difficult to heat , and therefore to increase ( flow, pressure ) cooling the cutting area. 5 ) When the cutting wheel at the user 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 the cut after 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 and thin cutting wheel performance is mainly related to abrasive particle size , particle size finer surface finish  masonry drill bits processing the better . Simultaneously with the workpiece material , hardness, cutting consumption , machine condition , processing requirements and other factors are also related. General before 7 ) thin cutting wheel and the factory has been shaping the blade , users can directly use . If you need further surgery, recommended green silicon carbide or corundum white stone, grain size selected coarse granularity than the cutting wheel , No. 1-2 ; If the user needs to further open the blade edge , or use some suggested green silicon carbide or corundum white Whetstone , particle size selected fine grain size than the cutting wheel or 1-2 numbers to the same number . 8 ) Cutting general but also with the material to be processed , hardness, precision machining requirements related to initial use is recommended to use the best in the user's original condition , do not easily change cutting parameters . 9 ) user conditions also affect major factor cutting performance , especially in machine tool spindle axial vibration , runout, parallelism directly affects the flanges , etc. cutting wheel balancing precision cutting accuracy.

About the multi-chip saw blade aperture , tooth and coating

Multi-chip saw blade aperture
Multi-chip saw blade aperture of course, first look at the requirements of the machine , because it is a multi-chip installed together , in order to ensure stability, the general design of the aperture is larger than conventional blade aperture , the aperture while the Concrete saw blades  majority of the increase , plus a special method of installation Flanges and keyway design to facilitate adding coolant , but also increase stability. General 110-200MM blade aperture between the outer diameter of 35-40 ,230-300MM blade aperture between the outer diameter of 40-70, 300MM over the blade is generally less than 50MM.
Multi-chip saw blade tooth
Multi-chip saw blade tooth is generally around the turn of the teeth , but a few small diameter blades are also designed to be flat teeth .
 Multi-chip saw blade coating
After the multi-chip saw blade welding grinding is completed, usually coating treatment , reportedly can extend life, it is mainly for blade looks beautiful, especially in multi-chip saw blade with scraper, welding current level , scraper Department has very obvious traces of welding , so before coating treatment , in order to maintain appearance. Plus multi-piece welded carbide saw blade on the saw blade matrix , collectively scraper. General core bits for concrete  since the beginning of the scraper blade outer scraper blade and teeth , the cutting blade is generally used for hardwood , wet outside scraper generally used for cutting wood , tooth scraper used for trimming or edge blade , but can not be generalized . Rui Shi to multi-chip saw blade , for example, the general design of the blade 10 inches below the number of 2-4 , in order to allow the blade play the biggest role , mostly designed for outer blade , 12- inch blade design and the number of 4-8 inner and outer blade scraper each half , symmetrical design . Multi-chip saw blade with scraper is a  4 inch saw blades trend of foreign companies before the invention of the earlier multi-chip saw blade with a blade . When cutting wet wood and hardwood , in order to achieve better cutting effect , reducing tooth paste blade burning piece of machinery to increase chip capacity, reduce the number of grinding and increase durability. However , multi-chip saw blade with a blade grinding difficult , generally can not be grinding equipment , the price is also relatively high .

Drill a brief description of the use of technology

Different well structure, the size of rock bit, type and use are special requirements. As general requirements whipstock cone drill teeth or warranty with trimming path structure, the use requiring high speed, low WOB and so on. Tags: three-wing concave concave geological core drill bit
Different well structure, the PCD grinding wheel  size of rock bit, type and use are special requirements. As general requirements whipstock cone drill teeth or warranty with trimming path structure, the use requiring high speed, low WOB and so on.
WOB and RPM to determine, not only determines the efficiency of the rock crusher cone bits, but also affect the cone drill teeth, bearing wear. Asai, soft formations, rock bit to shearing based, generally using high speed, low WOB. Medium hard formations, rock bit shearing, impact, crush comprehensive role, generally use medium speed and concrete drill bits  medium and high WOB.
Crustal rocks in different positions, which greatly changes the mechanical properties of the rock. Deeply buried rocks, in the multi-directional compression stress state, the rock porosity decreases, the intensity increases. Cementation upper hole section generally loose, soft, high speed roller bits, drill down. Lower section generally rock hard, abrasive large, low speed cone drill, drill pressure is high, use a long time. Lithology and different soft and hard rock crushing mechanism is different, resulting cone bit different forms of failure. Our various oil drilling in  masonry drill bits the common lithology, its mechanical properties are measured petrophysical.
Controlled drilling drill Type: PCB drilling with a drill with straight shank twist drill, twist drill set and fixed shank shank Spade (undercut) drill bit. Straight shank twist drill mostly for single head machines, PCB drilling relatively simple or single panels.

the grinding quality materials requirements

Cylindrical grinding, the correct choice of the grinding wheel is to ensure workpiece quality, increase productivity, reduce costs the important part. Select wheel features (abrasive, grain size, hardness, combined etc.), you must make a good abrasive grinding performance; grinding wheel with  concrete diamond blades suitable self-sharpening; generated when grinding wheel grinding force, grinding heat is relatively small; make easy dulled abrasive grinding wheel, have a higher life expectancy; reach workpiece machining accuracy and surface quality requirements, the machined surface is not easy to produce burns and cracks, grinding wheel, the workpiece and the grinding quality materials requirements are two key factors that can not be ignored.Width of grinding wheel speed is too high workpieces, grinding is easy to  granite polishing pad produce self-excited vibration, the surface roughness increases wheel life low; workpiece speed is too low, so that the surface is easy to burn. Generally the wheel speed and workpiece speed ratio between 120-200. Smaller diameter of the workpiece should be whichever is greater.Two radial feed speed selectionRadial feed speed is mainly affected by process system rigidity, workpiece shape accuracy limitations, when the process system less rigid, high precision shape of the workpiece, the radial feed speed should choose a small value, or deformation of the workpiece, which is difficult to ensure accuracy. Generally within the scope of the 0.5-0.7mm/min selection.

Grinding inner circle divided into the following four categories

Grinding inner circle divided into the following four categories: speed electric aerostatic bearing inner circle grinding, grinding inner circle of mechanical transmission, pneumatic and  diamond blades electric grinding inner  circle inner circle grinding.
Aerostatic bearing speed electric grinding inner circle: The aerostatic bearing (supply pressure is 40 ~ 65MPa), grinding system rigidity, both electric grinding characteristics, speed up 180000R/MIN, suitable for grinding a ~ 10MM hole.
Inner circle grinding mechanical transmission: mainly by the spindle, bearings, sleeve body shell, flat supporting pulleys and other components. Then, after replacement of the long axis, is used to grind different bore diameter and length, for comparison, the use of low speed, the speed is generally lower than 2000R/MIN.
Wind-driven inner circle grinding: spindle with a turbine driven by compressed air turbine rotates the spindle Edge 2000 Pads  speed, spindle speed reaches 10000R/MIN. Moreover, small vibration, pressure can be adjusted stepless. And with regulators, filters and other accessories.
Electric grinding inner circle: A three-phase asynchronous motor direct drive, and another by a high-frequency electric motor driven spindle speed of up to 50000 ~ 90000R/MIN. Output power is larger, instantaneous overload, speed characteristics hard, little vibration.

Diamond tools for processing stone products, the impact of the main reasons

Stone processing mainly sawing, cutting , grinding, polishing . Means workability stone sawing, cutting , grinding, polishing and ease of processing .
Sawing, cutting the same , grinding, polishing , although different, but very similar. So the general workability dry core drill bits  usually refers to the stone can be cut and grindability . Affect the stone processing are the main factors :
( A ) Hardness
Generally , the greater the hardness of the stone , the more difficult the process , the greater the wear of the tool .
( 2 ) Mineral and chemical composition
The material components stone material components include mineral composition and chemical composition , different minerals and chemical composition , processing is different. Such as marble rock-forming minerals are calcite , dolomite , and its Mohs hardness is 3 and 3.5-4 , respectively , compared with granite low hardness, ease of processing . Granite is glass blades  the main rock-forming minerals quartz, orthoclase , plagioclase , and their Mohs hardness of 6.5-7 . Its workability depends largely on the content of quartz and feldspar , the higher the content , the granite blades  more difficult process . In the chemical composition , such as the higher SiO2 content , processing more difficult .
( 3 ) the structure of the rock structure
In general , uniform particles than the uneven stone easy processing , high quality polishing ratio tabular fine , dense stone gloss than the loose stone . Mineral good crystallinity and orientation , the optical axis direction will greatly enhance the gloss after polishing . Rock cleavage, grain boundary and initial crack on the workability is also very important factors.

Circular blade how to install

Usually get the machine, many people do not know how to deal with, to share some of the following circular blade shearing machine disassembly and installation processes and the steps that  core drill bits we should pay attention to some of the problems!
The circular blade shears and  how to mix it together? First, we must first remove the front bench clipboard, front support arms, and lower front cover plate. Then we must be very careful, very sharp circular blade shears, when the whole process of operation are used to bring gloves, first turn off the pump motor, loosen the screw when the first machine in the middle of the clipboard loose screws at both ends The left one cup grinding wheels  screw from the fixed effect, and then screw the rear of the clipboard on the blade, this time you can grab the clipboard blades by hand, leaving both ends of the screws removed, remove the rear , slowly remove the circular blade, then you can start the pump, so that the slider in the upper dead point, with wooden table and on the mat in between the blades, turn off the  concrete ring saw pump motor, loosen and remove all installed on the blade screws and gently remove the circular blade.
The second step, shearing blades on the installation, first with the blade, with the specifications for the M12 * 40 screws on the blade, not on the ends of the first blade. Then be sure to use the stick against the upper blade, the blade and the contact surface of the slider can be fully tightened after snapping has been installed on the M12 * 40 bolts, when the slider down to the bottom dead point, to turn off pump motor, and then loaded on the blade screws tightened, the blade screw tightening torque should be 35N / M.
Finally, under the circular blade shears installation process, oil pump, when the slider up to the upper dead point, turn off the pump, replace the next round blade, using M12 * 45 hex screws, then pressed with a wooden stick under the blade, so that the next stage of the work under the blade and the blade snapping joints fully tighten screw. In this way, the circular blade clipboard installation process is complete.

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.

What is the diamond grinding wheel

 The main properties of diamond wheel which has a diamond wheel for which such extraordinary nature? For more details, see the following description. First diamond grinding wheel with polishing pads   high grinding efficiency, while consuming relatively slow wheel; grinding wheel has a certain flexibility, help to improve the surface roughness, mainly for grinding, half grinding, knife grinding, polishing and other processes; since sharpening, grinding, heat a small, easy to plug, reducing the grinding burn sds hammer drill bits  occurs when the phenomenon of work; resin bond diamond wheel diamond grinding wheel is a low temperature curing, short production cycle, equipment and supply process is relatively simple; due to resin has fluidity, easily molded complex plane of the wheel. According to Model Variety for the election (parallel to the grinding wheel, grinding wheel parallel with the arc, double-sided concave grinding wheel, dual bevel wheels, bowl-shaped grinding wheel) and so on. Their purpose: Parallel grinding wheel: mainly used for ceramic tile saw  carbide cylindrical grinding and edge processing; parallel with the arc Wheel: mainly used for grinding and shaping carbide forming circular surface grinding and so on. Analysis of the above are some of the major features diamond wheel introduction process.

circular saw blade dynamic

Dynamic operation stability of the circular saw blade is a blade in the cutting processing, maintaining its inherent shape and stiffness properties. Job stability than the saw blade and the industrial saw blades  frame band saws poor, mainly because of large blade diameter to thickness ratio, and only the clamping disc holding the spindle rotates at high speed can not be tensioned. Part of the body alone saw serrated metal binding force, it maintains a certain rigidity. When the blade rotates at high speed, the centrifugal force, the saw tooth edge portion of the body begins to relax, in addition, timber sawing, the saw tooth edge portion of the body temperature rise sharply, volume expansion, and the blade but also by material constraints can not be arbitrarily scalable, large internal deformation occurring outside the small, on both sides of the blade to swim, was "hunting" state, causing rough sawn wood surface waves.
First, the centrifugal force
Rotating blade, the saw body parts of the material are subject to the centrifugal force.
Second, the impact of cutting heat and displacement caused by temperature gradients
Saw cutting work, saw tooth edge portion of the body temperature is higher than the temperature of the rest of the blade on the outside there is a high internal temperature low, according to Mote, Szymani other scientists' research results, for the 1mm thick blade, When the blade in the floor polisher pads  radial direction of the temperature difference reaches 9 ℃, the blade wavy deformation occurs. Also exacerbated instability in the blade work.
Third, the circular saw cutting runout and lateral vibration on Processing Quality
Cutting circular saw blades, due to the number of teeth and more, chip thickness of only hundredths of a millimeter. So rather small radial deviation will be on chip thickness have a great impact, in addition to radial runout effects, the lateral vibration of the processing quality, especially surface roughness has a great influence.
Four, vibration analysis
Vibration of the saw blade is in its equilibrium position the blade reciprocating lateral movement. Vibration caused by external interference, and always behave as some kind of "class." Vibration of the blade during cutting can not be compensated, the vibration will increase sawing path loss, reduced cutting accuracy, increase the noise level and shorten tool life.
Fifth, the concept of stability
Saw work there is always a certain vibration, but not necessarily instability. The critical instability conditions, even if a frequency is zero or very small lateral forces can cause very large lateral displacement of the blade. Instability saw blade vibration theory is the  sanding discs study of the most important fields.
Six, critical speed theory
Theoretical critical speed is determined by Lapin and Dugdale introduced into the study of circular saw blades, before this theory is mainly used in the design of turbine research.
Seven, plane stress
The initial blade manufacturing residual stress include stress, suitable for tensile stress. Rotary cutting blade, will turn with stress, thermal stress and the stress caused by cutting force. All of these stresses can be considered as plane stress.
1, suitable for tensile stress
2, the rotary stress
3, thermal stress
4, the cutting stress
Eight, to improve the dynamic stability of a blade
1, suitable for sheets
2, saw themselves slotted
3, the guide
4, the thermal stress control

Grinding wheel ten principles

 Wheel selection is often based on the three factors for the choice of grinding wheel: 1. Roughness; 2, life requirements; 3, the grinding efficiency requirements. Roughness is determined by the abrasive particle size, can be determined according to the roughness of the abrasive wheel size selection; life requirements and according to the requirements of grinding efficiency grinding wheel hardness can determine the cup grinding wheels  size and organizational good. We summarize a bit, wheel choices about ten principles.
1, the selection of coarse grained, fine grinding select granular.
2, sheet wheel should choose rubber or resin bond.
3, when the grinding and shaping grinding wheel hardness should be higher.
4, wheel fine grain size, the grinding wheel hardness should be lower.
5, form grinding, precision grinding should take the wheel tighter organization.
6, the diamond grinding wheel  workpiece grinding area is large, you should choose loose tissue of the wheel.
7, grinding nonferrous metals and other soft materials should be selected soft and loose wheel, grinding wheel in order to avoid congestion.
8, workpiece material hardness, should choose soft wheels, low hardness of workpiece material should be selected hard wheel.
9, grinding steel and  diamond cbn wheel other ductile material should be selected corundum abrasives; grinding cast iron, tungsten carbide and other brittle materials should be selected silicon carbide abrasive.
10, the grinding contact area should choose soft wheel. Therefore, internal grinding and face grinding wheel hardness than cylindrical grinding wheel hardness is low.

Three diamond cutting discs are used

Currently used to cut materials whenever compared to diamond hard, diamond cutting disc for abrasive industry is in a high position in the match, although the price is cheap, and grinding cup wheel  trust in the future of the diamond cutting should be performed better experience
    Integration with the domestic market, especially after learning of foreign ancestors craft cutting discs, diamond cutting skills abroad will become more junior.
    Future diamond cutting discs there is a very large market, because the rock-cut diamond cutting tool is most useful, therefore, superficial discussion of stone cutting mechanism and the wear mechanism of diamond cutting equipment, diamond cutting things about the diamond grinding wheel  production and the correct use reasonable means must exist
    Pros and cons of diamond cutting discs varieties often much worse for other cutting material, cutting discs differences with other states with poor qualities of the diamond cutting discs currently abroad or in the sanding belt   discussion behind developed world standards
     In the abrasives industry, diamond cutting discs with a control instrument is universal, its primary notice is diamond cutting discs were faithful reason, rough cutting equipment is very common, so check abrasive industry in the development of particularly wide wide development of space

diamond tool wear

Diamond tool wear mechanism is more complex, can be divided into macro-and micro-abrasion wear, the  diamond cup grinding wheel  former mainly mechanical wear, which is dominated by thermal chemical wear. Diamond grinding tool breakage common form for the former flank wear, flank wear and edge chipping. In single crystal diamond tool sharpening process, requires the wear to the grinding tool to meet the requirements, but if the wear generated may damage not have a good grinding before the  polishing pads  flank. The edge cracking (i.e. chipping) is on the edge of the local stress exceeds the capacity of the  diamond grinding wheel diamond cutting tool occurs, generally the diamond crystal (111) cleavage plane of the micro-damage caused. In the ultra-precision machining, diamond tool edge radius of the cutting edge is relatively small, which itself is hard and brittle materials, and because of its anisotropy and (111) surfaces prone to cleavage, with the vibration of the tool blade and grinding wheel grit the mouth of the impact of the role, it is often accompanied produce chipping.

grinding wheel roller pores choice

Suitable for large pores rubber roller grinding wheel Grinding coarse particle size generally use 45 # -60 #, 80 # grinding wheel selection; but wide face wheel (A803S grinder) rubber roller grinding wheel size can only use 45 # -60 #, this is because the cbn grinding wheels  polishing process A803S grinding roller surface of the polishing wheel surface is always in contact with, the heat dissipation is not easy polishing, use a large wheel size, enabling the heat, but is conducive to reduction roller surface roughness.
Grinding wheel and abrasive particle size distribution of the state for the quality of sharpening roller is very important, small size, tight grain distribution, the  diamond grinding wheel wheel in small pores, tempered heat generated when loss is not easy, the light effect roller surface roughness degrees, severe damage to the surface of the roller organizational structure, so that the physical and mechanical properties of roller down.
In the polishing process, the polishing dust is often adhered to the rubber surface and the  industrial saw blades abrasive surface clogging the pores of the wheel, there is no space between the grains, loss of cutting ability. With high hardness, well organized, fine grain size of large pores wheel most prone to clogging, which is often trimmed wheel (commonly known as copy wheel) causes. Experimental comparison shows that the large pores 45 # 60 # wheel than twice the length of use of time;'s four times longer than the 80 #; than 40 times the length of 120 #. Ie the same amount of grinding roller; 45 # of dressing a grinding wheel 20 days; 60 # of 10 days finishing time; 80 # of five days trimming once; 120 # of one day to the secondary dressing. So grinding rollers for general use 80 #'s more applicable in wheel dressing cycle, both to meet the accuracy requirements of sharpening roller. Roller can ensure a good surface state.