With grinder grinding away the surface defect of the process, also known as abrasive cleaning. tile cutting wheels grinder manual and automatic two categories:
(1) Manual grinder. Including hanging grinder, portable grinder and trolley-type grinder. Manual grinder inefficient, labor-intensive for grinding shallow defects, used to clean up residual defect by automatic grinding machine after cleaning. But this grinder shape size small, cheaper equipment prices, simple to use, it is widely used.
(2) automatic grinding machine. Including fixed and movable automatic grinder. More efficient than a manual grinder high, but the equipment is expensive, the use of complex, large area. When using abrasive cleaning, the workpiece due to the sharp friction and produce local heating, prone to cracking after cooling. To prevent cracking, it must pay attention to the speed and pressure of the wheel when the metal grinding disc products; intermittent operation mode can also be used to facilitate the diffusion of heat were polished.
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2015年6月13日星期六
2015年6月10日星期三
Wheel selection principles
1, good uniformity and no crack-like appearance is the basic look of high-quality wheel;
2, sophisticated anti-counterfeiting packaging and printing bar code is fake goods are factory products different distinction;
3, stainless steel cutting wheels static unbalance any value as low as possible, of course, difficult to produce greater;
4, cutting and grinding general rule is to iron less, low wear the wheel too hard to iron less wear big is bad materials, high intrinsic quality of wear as little as possible, to the maximum amount of iron, At the same time feel good;
5, for carbon steel, alloy steel, stainless steel, copper and aluminum materials, glass and stone, because of their tissue density and heat conditions are not the same, differ when it decided to choose the wheel; glass stone, on the market There are specialized glass stone cutting and polishing tools; copper and aluminum materials and stainless steel solid material thickness of the low number of applications or zirconium corundum substrate for cutting sheet or polished film; for cutting carbon steel, stainless steel profiles (non-solid) requires selection of high hardness Some of the stainless steel cutting disc will be greatly increased life expectancy; but solid bar, forgings and requires the wheel in hardness is not too high, otherwise it will cut does not move!
2, sophisticated anti-counterfeiting packaging and printing bar code is fake goods are factory products different distinction;
3, stainless steel cutting wheels static unbalance any value as low as possible, of course, difficult to produce greater;
4, cutting and grinding general rule is to iron less, low wear the wheel too hard to iron less wear big is bad materials, high intrinsic quality of wear as little as possible, to the maximum amount of iron, At the same time feel good;
5, for carbon steel, alloy steel, stainless steel, copper and aluminum materials, glass and stone, because of their tissue density and heat conditions are not the same, differ when it decided to choose the wheel; glass stone, on the market There are specialized glass stone cutting and polishing tools; copper and aluminum materials and stainless steel solid material thickness of the low number of applications or zirconium corundum substrate for cutting sheet or polished film; for cutting carbon steel, stainless steel profiles (non-solid) requires selection of high hardness Some of the stainless steel cutting disc will be greatly increased life expectancy; but solid bar, forgings and requires the wheel in hardness is not too high, otherwise it will cut does not move!
2015年6月7日星期日
Several methods of dressing wheel
① diamond wheel dressing pen
Depending on the size of the diamond particles and different distributions in the pen, diamond pen into a chain, layered, arrayed and powdery several. Strong force from the days of using a combination of alloys as binder, the use of diamond particles not falling, until exhausted without intermediate grinding.
② rolling wheel dressing method
Rolling method wheel dressing, concrete cutting wheels speed by deceleration to 1 ~ 2m / s driven rolling wheel (made of metal, made of cemented carbide or abrasive) rotation.
Rolling wheels added to a pressure of about 3 ~ 5MPa the wheel, abrasive grinding wheel surface crushed or abrasive grains fall off. Rolling wheel dressing cutting method is better, lower cost, but is coarser grind the workpiece surface roughness, rolling tile cutting wheel wear, life is short, easy to lose precision. Therefore, this method is mainly used for trimming small quantities, less demanding precision profile grinding.
Trimmed wheel hardness uniformity is better, otherwise the wheel will produce local shape distortion.
Depending on the size of the diamond particles and different distributions in the pen, diamond pen into a chain, layered, arrayed and powdery several. Strong force from the days of using a combination of alloys as binder, the use of diamond particles not falling, until exhausted without intermediate grinding.
② rolling wheel dressing method
Rolling method wheel dressing, concrete cutting wheels speed by deceleration to 1 ~ 2m / s driven rolling wheel (made of metal, made of cemented carbide or abrasive) rotation.
Rolling wheels added to a pressure of about 3 ~ 5MPa the wheel, abrasive grinding wheel surface crushed or abrasive grains fall off. Rolling wheel dressing cutting method is better, lower cost, but is coarser grind the workpiece surface roughness, rolling tile cutting wheel wear, life is short, easy to lose precision. Therefore, this method is mainly used for trimming small quantities, less demanding precision profile grinding.
Trimmed wheel hardness uniformity is better, otherwise the wheel will produce local shape distortion.
2015年6月4日星期四
Large pores wheel choice
Large pores wheel has easily be blocked, strong high durability and cutting ability, etc. during grinding. Suitable for soft metals and plastics, rubber and leather and other non-metallic materials, crude, refined. At the same time, it has a fast heat dissipation characteristics, so in grinding large number of heat-sensitive materials, thin-walled workpieces and dry milling processes (such as sharpening carbide cutting tools and machine tool guide, etc.) with good results.
Large pores stainless steel cutting wheel and manufacturing methods are generally vitrified grindstone essentially the same. The difference is in the ingredients plus a certain amount of pore former, it is completely evaporated or burned embers at the wheel before sintering, resulting in large pores.
Large pores wheel production range is: usually selected carbide and abrasive corundum, such as commonly used silicon carbide (C), green silicon carbide (GC) and corundum (WA) and other types of high abrasive hardness, resistance crisp and sharp, with good thermal and electrical conductivity; grit size (36 # to 180 #); binders (vitrified); hardness (G ~ M levels); shapes (flat-shaped, cup-shaped, bowl or dish shape, etc.); pore size (approximately 0.7 to 1.4 mm).
Large pores stainless steel cutting wheel and manufacturing methods are generally vitrified grindstone essentially the same. The difference is in the ingredients plus a certain amount of pore former, it is completely evaporated or burned embers at the wheel before sintering, resulting in large pores.
Large pores wheel production range is: usually selected carbide and abrasive corundum, such as commonly used silicon carbide (C), green silicon carbide (GC) and corundum (WA) and other types of high abrasive hardness, resistance crisp and sharp, with good thermal and electrical conductivity; grit size (36 # to 180 #); binders (vitrified); hardness (G ~ M levels); shapes (flat-shaped, cup-shaped, bowl or dish shape, etc.); pore size (approximately 0.7 to 1.4 mm).
2015年6月1日星期一
Cubic boron nitride (CBN) wheel selection
Cubic boron nitride (CBN) grinding wheel CBN particles stick only on the surface of a thin layer of an ordinary reflex wheel, which abrasive grains toughness, hardness, durability class corundum grinding wheels is 100 times, the most suitable for processing high hardness, tack Large, high temperature strength, low thermal conductivity and high speed steel hard grind or ultra-high speed grinding. Its scope of application and synthetic diamond plays complementary role. Diamond wheel when grinding carbide and non-metallic materials, has a unique effect, but in the grinding steel material, especially when grinding special steel, the effect is not significant. CBN grinding wheel steel wheel efficiency than corundum class higher in recent times, the wheel five times higher than diamond, but less than the diamond grinding brittle material.
Selection and choice of diamond grinding wheel tile granite cutting wheels is similar. But in the binding agent selection, most resin binder, followed by electroplating, metal bond. Vitrified CBN grinding wheel is mainly used for grinding titanium alloys, high-speed steel, malleable iron and other difficult to machine ferrous metals, resin bond CBN grinding wheel for grinding ferromagnetic material is ideal for machining steel. CBN grinding concentration is generally 100 to 150 using more economical, it can not use ordinary cutting fluids, which require special cutting fluid.
Selection and choice of diamond grinding wheel tile granite cutting wheels is similar. But in the binding agent selection, most resin binder, followed by electroplating, metal bond. Vitrified CBN grinding wheel is mainly used for grinding titanium alloys, high-speed steel, malleable iron and other difficult to machine ferrous metals, resin bond CBN grinding wheel for grinding ferromagnetic material is ideal for machining steel. CBN grinding concentration is generally 100 to 150 using more economical, it can not use ordinary cutting fluids, which require special cutting fluid.
2015年5月29日星期五
Diamond Wheel selection
Diamond Wheel wheel rake than with boron carbide, silicon carbide, corundum grains and other general made sharp, wear small, long life, high productivity, good processing quality, but expensive, making it suitable for grinding carbide, ceramics semiconductor high hardness brittleness difficult to machine materials.
Characterized by comprising an abrasive diamond wheel kind, particle size, hardness, concentration, binding agents, shape and size of the wheel.
Abrasive: widespread use of synthetic diamond (JR), according to its crystalline shape and particle strength, points of various models, according to their specific uses selected models.
Granularity: To workpiece roughness, considering the consumption of three and diamond grinding productivity.
Hardness: Only resin bond depressed center cutting wheel only "hardness" of this feature. Generally use S (Y1) level or higher.
Binder: There are four commonly used binders, their binding capacity and wear resistance of the resin, ceramics, bronze, plated metal for the order, followed by a crescendo. Resin bonded concrete cutting wheels high efficiency, workpiece roughness was good, wide application, good self-sharpening, clogging, heat a small, easy to repair, mainly for grinding processes. Vitrified diamond grinding wheel is mainly used for a variety of non-metallic hard and brittle materials, hard alloy, super-hard materials and the like.
Concentration: Concentration Select metal cutting wheels size according to use, binding agents, shape, processing method, production efficiency and wheel life requirements. The ability to maintain a high concentration of diamond grinding wheel grinding wheel shape strong, low concentrations grinding wheel, diamond consumption tends to lower these, as appropriate, should be selected according to need.
Shape and size: according to shape, size and condition of the workpiece machine tool selection.
Characterized by comprising an abrasive diamond wheel kind, particle size, hardness, concentration, binding agents, shape and size of the wheel.
Abrasive: widespread use of synthetic diamond (JR), according to its crystalline shape and particle strength, points of various models, according to their specific uses selected models.
Granularity: To workpiece roughness, considering the consumption of three and diamond grinding productivity.
Hardness: Only resin bond depressed center cutting wheel only "hardness" of this feature. Generally use S (Y1) level or higher.
Binder: There are four commonly used binders, their binding capacity and wear resistance of the resin, ceramics, bronze, plated metal for the order, followed by a crescendo. Resin bonded concrete cutting wheels high efficiency, workpiece roughness was good, wide application, good self-sharpening, clogging, heat a small, easy to repair, mainly for grinding processes. Vitrified diamond grinding wheel is mainly used for a variety of non-metallic hard and brittle materials, hard alloy, super-hard materials and the like.
Concentration: Concentration Select metal cutting wheels size according to use, binding agents, shape, processing method, production efficiency and wheel life requirements. The ability to maintain a high concentration of diamond grinding wheel grinding wheel shape strong, low concentrations grinding wheel, diamond consumption tends to lower these, as appropriate, should be selected according to need.
Shape and size: according to shape, size and condition of the workpiece machine tool selection.
2015年5月26日星期二
Wheel in the future development prospects
As early as the Neolithic Age, humans had already started to use natural millstone processing knives, axes, bone, horn and teeth and other tools; the long time ago, humans have found a natural abrasive and clay fired combined Ceramic wheel; after 1900, the advent of artificial abrasives, using a variety of artificial abrasive wheel manufacturing have been produced, created conditions for the rapid development of the grinding and grinding. Thereafter, the abrasive grinding wheel gradually increase the proportion.
At present many production of metal products in the world, therefore, belongs to the class of wheel hardware industry naturally played a crucial role in strengthening the bench grinder wheels production process innovation, improve production technology, product innovation capability restrict open and enterprise technical level "bottleneck" in a timely manner the new stone cutting wheel be applied to existing equipment business, extending its technical life, enhance its effectiveness, the source of production to ensure product quality.
As in recent years, China's rapid economic development, technological innovation wheel continue to strengthen the future it will become China Abrasives major categories accounted for the largest product categories, and because the grinding wheel industry unique advantages in the latter part of the chain, greatly to promote the application in the polishing of the metal cut off wheel. According to the analysis, to 2015, China will surpass France as the world's largest abrasives market, initial estimates, our abrasive products will occupy the world Abrasives demand additional products 3/5, as abrasives and grinding wheels One of the major product categories, is also facing a good development situation.
At present many production of metal products in the world, therefore, belongs to the class of wheel hardware industry naturally played a crucial role in strengthening the bench grinder wheels production process innovation, improve production technology, product innovation capability restrict open and enterprise technical level "bottleneck" in a timely manner the new stone cutting wheel be applied to existing equipment business, extending its technical life, enhance its effectiveness, the source of production to ensure product quality.
As in recent years, China's rapid economic development, technological innovation wheel continue to strengthen the future it will become China Abrasives major categories accounted for the largest product categories, and because the grinding wheel industry unique advantages in the latter part of the chain, greatly to promote the application in the polishing of the metal cut off wheel. According to the analysis, to 2015, China will surpass France as the world's largest abrasives market, initial estimates, our abrasive products will occupy the world Abrasives demand additional products 3/5, as abrasives and grinding wheels One of the major product categories, is also facing a good development situation.
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