Abrasives industry, the rapid development of the market is one to reconcile the agent to meet the customer experience to deepen changing strategies to adapt to the market.
Information released by eighteen report is not PINEZONE non woven flap wheel difficult to see, through the strengthening of environmental protection, promoting energy conservation and environmental protection, to accelerate the pace of industrial upgrading will be optimized for the national industrial development for key tasks will continue to persist. As for the abrasives industry, the upgrading and transformation will also be in line with national development, in line with industry to enhance the last word.
Abrasives industry after decades of high-speed extensive PINEZONE PSA sanding disc development, and the environment in the market left a lot of consequences. With countries to strengthen supervision of energy conservation, and gradually accelerated the pace of eliminating backward production capacity, which for the abrasives industry, will usher in a new challenge. In the recently concluded eighteen clearly pointed out the need to promote strategic adjustment of the economic structure. Promote strategic emerging industries, advanced manufacturing and healthy development, accelerate the transformation and upgrading of traditional industries. I must also mention that the PINEZONE grinding disc report was first proposed eighteen concept of "ecological civilization", environmental protection, resource conservation, energy conservation, development of renewable energy, water, air and soil pollution, and so on a range of issues included in the release the signal is strong attention to environmental protection, resource recycling, energy conservation and other related fields.
2014年2月19日星期三
2014年2月14日星期五
Sanding disc specific classification and characteristics
Sandpaper paper in papermaking process, because each manufacturer 's equipment and technology is not the same , resulting in paper properties are quite different , and if we do not understand the paper 's performance during use , there may be some issues not properly controlled , thus affecting the quality of sandpaper , so the correct approach is necessary to PINEZONE Mounted flap wheel master the use of paper .
First, the paper has a positive and negative difference , to the proper use of planting sand surface . A grade paper , latex paper, heavy paper and paper is generally only one belt planting sand surface , some of which are planted sand surface web , there are the web is planted outside sand surface , requiring paper manufacturers indicated at the factory . B grade paper , C grade paper according to the different requirements of coarse -grained and smoothness select different planting sand surface , medium grained on both PINEZONE cut off wheel sides can be used .
Second, the weather unstable performance of the base paper . Everyone knows can be very absorbent paper , paper is no exception , with special attention in the storage and transportation process to strengthen waterproof, moisture protection, it should be moisture-proof paper packaging at the factory and do the proof packaging that is out of the box , especially in the South and more rainy weather , more should pay attention to moisture and humid climate .
Third, the treated paper is preferably used in order to enhance water resistance and anti- glue paper penetration , do waterproof sandpaper , generally, the paper post-treatment should be used. Which is impregnated with the back-side or both sides of paper impregnated with processing , so can " plugging holes " , you can avoid a lot of glue glue into the paper , resulting in sticky sand is not strong , the impact grinding performance , but also some manufacturers of paper in the paper has been water treatment , do not reprocessed this is because the use of the paper coating or dipping method , and the resin molecules into the paper fiber , the fiber and surrounding , after the resin has cured to form a stable water- resistant , oil-resistant, preventing penetration of the solvent body structure , but the amount can not be dipping too large, otherwise it will increase the brittleness of sandpaper .
Fourth, the paper can not be processed immediately put into production because of paper when processing through high temperature baking, resulting in fiber contraction , its moisture content is also greatly reduced , prone to brittle paper , glue sand-planting immediately if carried out , will result in breaks frequently affect production, the rate of decline in genuine , serious not normal continuous production . would be better PINEZONE abrasive flap disc to store the paper treated three to five days after production ( summer hot weather should be a little longer ) , or using a humidifier process when dealing with paper, so can reduce the brittleness of the treated paper .
Five paper factory should not be used just because paper in the papermaking process, the use of a certain amount of chemical additives, these additives have a reactive curing process , commonly referred to as the paper " aging process ", generally two paper should offline after fourteen hours before use , heavy abrasive paper, latex paper , A-level paper should be kept a week after use .
First, the paper has a positive and negative difference , to the proper use of planting sand surface . A grade paper , latex paper, heavy paper and paper is generally only one belt planting sand surface , some of which are planted sand surface web , there are the web is planted outside sand surface , requiring paper manufacturers indicated at the factory . B grade paper , C grade paper according to the different requirements of coarse -grained and smoothness select different planting sand surface , medium grained on both PINEZONE cut off wheel sides can be used .
Second, the weather unstable performance of the base paper . Everyone knows can be very absorbent paper , paper is no exception , with special attention in the storage and transportation process to strengthen waterproof, moisture protection, it should be moisture-proof paper packaging at the factory and do the proof packaging that is out of the box , especially in the South and more rainy weather , more should pay attention to moisture and humid climate .
Third, the treated paper is preferably used in order to enhance water resistance and anti- glue paper penetration , do waterproof sandpaper , generally, the paper post-treatment should be used. Which is impregnated with the back-side or both sides of paper impregnated with processing , so can " plugging holes " , you can avoid a lot of glue glue into the paper , resulting in sticky sand is not strong , the impact grinding performance , but also some manufacturers of paper in the paper has been water treatment , do not reprocessed this is because the use of the paper coating or dipping method , and the resin molecules into the paper fiber , the fiber and surrounding , after the resin has cured to form a stable water- resistant , oil-resistant, preventing penetration of the solvent body structure , but the amount can not be dipping too large, otherwise it will increase the brittleness of sandpaper .
Fourth, the paper can not be processed immediately put into production because of paper when processing through high temperature baking, resulting in fiber contraction , its moisture content is also greatly reduced , prone to brittle paper , glue sand-planting immediately if carried out , will result in breaks frequently affect production, the rate of decline in genuine , serious not normal continuous production . would be better PINEZONE abrasive flap disc to store the paper treated three to five days after production ( summer hot weather should be a little longer ) , or using a humidifier process when dealing with paper, so can reduce the brittleness of the treated paper .
Five paper factory should not be used just because paper in the papermaking process, the use of a certain amount of chemical additives, these additives have a reactive curing process , commonly referred to as the paper " aging process ", generally two paper should offline after fourteen hours before use , heavy abrasive paper, latex paper , A-level paper should be kept a week after use .
2014年2月12日星期三
To pay attention to what the problem abrasive wheel installation
First, the quality of the grinding wheel to be safe when installing detection method, Nepal velvet hammer (you can also use a pen ) tapping the side wheel , crisp sound is no problem.
Grinding machines installed in any location , is the PINEZONE abrasive sanding belt question we must first consider the installation process , only selected reasonable and appropriate location , we can carry out other tasks . Grinder prohibit installed facing or near the equipment and the operator has often been in the past where , generally larger wheel shop should set up a dedicated room . If indeed due to terrain limitations plant can not set up a dedicated wheel room, should be installed in the front wheel drive is not less than 1.8m high protective baffle and baffle requires strong and effective.
Wheel unbalance wheel mainly by manufacturing and installation inaccuracies , the rotary shaft of the grinding wheel does not coincide with the center of gravity caused . Harm imbalance mainly manifested in PINEZONE sanding roll two aspects, one in the high-speed rotating grinding wheel , causing the vibration, could easily lead to the workpiece surface polygonal oscillation marks ; hand, unbalanced spindle vibration and accelerated bearing wear , serious when will cause wheel breakage , or even cause an accident. Therefore , requiring great or greater installed directly on the card should be carried out late static balance wheel in the plastic trim or discovered after an imbalance in the work, should be repeated static equilibrium 200mm sand office .
Matching problem mainly refers to the wheel mounting chuck logistic problems . According to standards , wheel diameter not less than chuck is mounted sand office diameter of 1/ 3, and the corresponding provisions of wheel wear to a larger diameter than the diameter of 10mm chuck should be replaced with a new wheel. Thus there is a matching problem chuck and grinding wheel , otherwise it will be the case , " big horse car " wasteful equipment and materials ; " small horse cart " do not meet the safety requirements , could easily lead to accidents . Therefore, a reasonable match chuck and grinding wheel , one can save the device , cut about materials ; hand and meet the requirements for safe operation . Further, between the wheel and the installation of a larger diameter than the chuck should chuck diameter 2mm, thickness 1mm ~ 2mm upholstered .
Grinder shield is the most important protective device , its role is : When the wheel for some reason destruction at work, covering the wheel fragments can effectively ensure the safety of personnel. The shape of a circular wheel guard and square , which must not exceed the maximum opening angle of 90 °; shield material is not less than 415N/mm2 tensile strength of steel . When replacing the new wheel, protective cover installed to a solid and PINEZONE abrasive fibre disc reliable , and the guard shall not disassemble or discarded . Quiet block panel is one of the main protective accessories grinders , protective cover over the opening in the horizontal axis is greater than or equal to 30 must be set for this device ( when it 's main function is to block the grinding process of flying quiet to avoid harming operator it being attached to the open end of the shield , a width greater than the width of the grinding wheel guard , and should be firmly secured in a protective cover . Moreover , the circumferential surface of the grinding wheel requires baffle gap should be less than 6mm.
Grinding machines installed in any location , is the PINEZONE abrasive sanding belt question we must first consider the installation process , only selected reasonable and appropriate location , we can carry out other tasks . Grinder prohibit installed facing or near the equipment and the operator has often been in the past where , generally larger wheel shop should set up a dedicated room . If indeed due to terrain limitations plant can not set up a dedicated wheel room, should be installed in the front wheel drive is not less than 1.8m high protective baffle and baffle requires strong and effective.
Wheel unbalance wheel mainly by manufacturing and installation inaccuracies , the rotary shaft of the grinding wheel does not coincide with the center of gravity caused . Harm imbalance mainly manifested in PINEZONE sanding roll two aspects, one in the high-speed rotating grinding wheel , causing the vibration, could easily lead to the workpiece surface polygonal oscillation marks ; hand, unbalanced spindle vibration and accelerated bearing wear , serious when will cause wheel breakage , or even cause an accident. Therefore , requiring great or greater installed directly on the card should be carried out late static balance wheel in the plastic trim or discovered after an imbalance in the work, should be repeated static equilibrium 200mm sand office .
Matching problem mainly refers to the wheel mounting chuck logistic problems . According to standards , wheel diameter not less than chuck is mounted sand office diameter of 1/ 3, and the corresponding provisions of wheel wear to a larger diameter than the diameter of 10mm chuck should be replaced with a new wheel. Thus there is a matching problem chuck and grinding wheel , otherwise it will be the case , " big horse car " wasteful equipment and materials ; " small horse cart " do not meet the safety requirements , could easily lead to accidents . Therefore, a reasonable match chuck and grinding wheel , one can save the device , cut about materials ; hand and meet the requirements for safe operation . Further, between the wheel and the installation of a larger diameter than the chuck should chuck diameter 2mm, thickness 1mm ~ 2mm upholstered .
Grinder shield is the most important protective device , its role is : When the wheel for some reason destruction at work, covering the wheel fragments can effectively ensure the safety of personnel. The shape of a circular wheel guard and square , which must not exceed the maximum opening angle of 90 °; shield material is not less than 415N/mm2 tensile strength of steel . When replacing the new wheel, protective cover installed to a solid and PINEZONE abrasive fibre disc reliable , and the guard shall not disassemble or discarded . Quiet block panel is one of the main protective accessories grinders , protective cover over the opening in the horizontal axis is greater than or equal to 30 must be set for this device ( when it 's main function is to block the grinding process of flying quiet to avoid harming operator it being attached to the open end of the shield , a width greater than the width of the grinding wheel guard , and should be firmly secured in a protective cover . Moreover , the circumferential surface of the grinding wheel requires baffle gap should be less than 6mm.
2014年1月20日星期一
What is the main purpose abrasive roll
By coating or press-fitted in the lap of the abrasive particles and the workpiece by relative movement of the lap at a certain pressure on the working surface of the finishing process (e.g., cutting). Grinding can be used for processing of various metals and non-metallic materials, surface machining with a flat shape, inner cylinder and the outer conical surface, convex and concave spherical, threads, and other type of tooth surfaces. Processing accuracy IT5 ~ 01, the surface roughness up Ra0.63 ~ 0.01 microns.
Wet grinding method can be divided into research, and semi-dry grind grind three categories. ① wet grind: grinding, also PINEZONE zirconia flap disc known as sand deposited, the continuous filling or coating liquid abrasive surface grinding, abrasive between the workpiece and the lap constantly sliding and rolling to form a cutting motion. Wet research generally used for rough grinding, abrasive powder used coarse granularity in W7. ② Dry RESEARCH: also known as embedded sand grinding, the abrasive embedded in the uniform pressure in the lap of the surface layer, only when the polishing surface of the auxiliary material is coated with a lap fat blend small amounts of stearic acid and the like. Research commonly used in dry fine grinding, abrasive powder used in fine granularity W7. ③ semi Research: Research similar wet, the PINEZONE sanding roll use of abrasive grinding paste is a paste. Either by hand polishing, polishing may be performed on the machine. Workpiece by other processing methods must first be obtained in a high precision before the pre-polishing, polishing the left margin is generally 5 to 30 microns.
Lap is shaping the workpiece grinding tools, but it is also the carrier of abrasive hardness should be less than the hardness of the workpiece, but also some wear, often made of gray cast iron. Wet grind lap ferrite microstructure dominated; dry grind lap uniform and fine pearlite places as the matrix. The following grinding M5 thread and small PINEZONE Bonded abrasives parts of complex shape, commonly mild steel lap. When grinding holes and soft metal materials, mostly made of brass, copper lap. Lap should be sufficiently rigid working surfaces have a high geometric precision. Lap grinding and cutting process is also subject to wear, such as operating properly, its accuracy can be improved, so that the processing accuracy of the workpiece can be higher than the lap of the original accuracy.
Wet grinding method can be divided into research, and semi-dry grind grind three categories. ① wet grind: grinding, also PINEZONE zirconia flap disc known as sand deposited, the continuous filling or coating liquid abrasive surface grinding, abrasive between the workpiece and the lap constantly sliding and rolling to form a cutting motion. Wet research generally used for rough grinding, abrasive powder used coarse granularity in W7. ② Dry RESEARCH: also known as embedded sand grinding, the abrasive embedded in the uniform pressure in the lap of the surface layer, only when the polishing surface of the auxiliary material is coated with a lap fat blend small amounts of stearic acid and the like. Research commonly used in dry fine grinding, abrasive powder used in fine granularity W7. ③ semi Research: Research similar wet, the PINEZONE sanding roll use of abrasive grinding paste is a paste. Either by hand polishing, polishing may be performed on the machine. Workpiece by other processing methods must first be obtained in a high precision before the pre-polishing, polishing the left margin is generally 5 to 30 microns.
Lap is shaping the workpiece grinding tools, but it is also the carrier of abrasive hardness should be less than the hardness of the workpiece, but also some wear, often made of gray cast iron. Wet grind lap ferrite microstructure dominated; dry grind lap uniform and fine pearlite places as the matrix. The following grinding M5 thread and small PINEZONE Bonded abrasives parts of complex shape, commonly mild steel lap. When grinding holes and soft metal materials, mostly made of brass, copper lap. Lap should be sufficiently rigid working surfaces have a high geometric precision. Lap grinding and cutting process is also subject to wear, such as operating properly, its accuracy can be improved, so that the processing accuracy of the workpiece can be higher than the lap of the original accuracy.
2014年1月14日星期二
polishing powder polishing
After profiling machine assembly plant assembly after molding to re-enter the next process: sanded, first with 70 # 80 # wheel or wheel assembly after the small piece to eradicate residual traces of the blade, H line, vertical line, arc line other major relied on to sweep Bonded abrasives straight, Swinger, give sanded invention favorable conditions.One, the first water sandpaper, sandpaper on items processed surface. Sandpaper on hand to numerous articles in uniform working surface grinding, the grinding process. To add a little too much pressure on the hand, so that the grinding effect faster, to eradicate traces on a process, how to tune it to see early signs of the previous process clearly. The surface of the water, dry goods processing. They know the surface looked around, this procedure mainly for the goods to the shape of the exterior surface grinding place items at the polished rough machined surface. This process must be sharpened, or behind the grinding process can not reach no matter how begged. It should be noted: the case of coarse sandpaper, grit coarse grinding capacity. To master;
Polish: polishing powder polishing, with grinding disc clean water and cotton Bucharest few items machining surface polishing powder in uniform grinding back and forth many times until water mill dry, rough degrees arrived norms interruption, polished items such as specular gloss, bright illumination man . Raging degree can reach 90-110 degrees, color, particles, markings real, natural, authentic marble items reflect the natural handsome.
Polish: polishing powder polishing, with grinding disc clean water and cotton Bucharest few items machining surface polishing powder in uniform grinding back and forth many times until water mill dry, rough degrees arrived norms interruption, polished items such as specular gloss, bright illumination man . Raging degree can reach 90-110 degrees, color, particles, markings real, natural, authentic marble items reflect the natural handsome.
2014年1月6日星期一
Diamond (CBN) abrasive application technology
Just below the hardness of diamond CBN, diamond but with superior heat resistance and chemical inertness of the material of the iron group metals. Use it to make these excellent properties CBN abrasive grinding material made of, particularly suitable for grinding all types of iron group metal materials. It is mainly used for material processing and diamond hard and brittle complement each other, so that the scope of application of superhard materials greatly broadened. Compared to ordinary abrasive abrasive, CBN abrasive with high-speed, efficient processing of high quality, long life, low cost, high speed CNC grinding machine can be used as efficient tool of choice for high grinding disc precision grinding. In the automotive industry, machine tools, bearings and so has a wide range of applications. 1, CBN in the nature of the material for grinding using CBN, we focus on its hardness, wear resistance, strength and thermal resistance and other properties.
CBN hardness is much higher than other conventional abrasives. High hardness means cutting stronger, sharper; CBN has a high abrasion resistance, meaning it harder than normal abrasive wear. The ability to maintain the shape of the grains is one of the main characteristics of a high-performance CBN abrasive; CBN high compressive strength, which means that when used under harsh conditions it can remain intact and not broken particles;
CBN has good thermal conductivity, in the CBN grinding can be realized due to the different nature of certain cold and diamond cutting, the scope of their work material is different. CBN materials for processing tool steel, bearing steel, alloy steel, super alloys, cast iron. Diamond is a material suitable for processing carbide, glass, ceramic, cermet, iron 2, CBN grinding system
CBN grinding with different types of binding agent and the CBN bonded abrasive tool into a certain shape. It is only through rational grinding process, relying on the superiority of the grinder can, in order to maximize its effect. In the CBN grinding technology research and application, the CBN must be abrasive, grinding machines, parts, repair, cooling, grinding and other factors into a system to be optimized in order to obtain the best technical and economic results. CBN grinding technology several important factors to be considered are as follows. 2-1 CBN grinding abrasive in ceramic belt the manufacture of primary consideration and selection of the shape, size, CBN abrasive particle size, concentration, type of binding agent and the use of speed and other parameters. CBN abrasive shapes, dimensions and marking by the standard GB/T6409.2-1996 and GB/T6409.1-1994; CBN abrasive four binder (resin, metal, ceramic, plating) in order to Vitrified fastest growing. This is due to the high ceramic CBN abrasive grinding efficiency, good shape retention, durability, ease of repair, wheel long life, thus becoming efficient, high-precision grinding abrasive of choice. Wheel concentration level indicates how much the number of grains in the grinding wheel during the grinding involved in the work surface. High concentrations can bring high grinding ratio and low surface roughness. If 200% of the concentration ratio of 100% concentration extend wheel life 4-5 times. The hardness of the abrasive binder level indicates the gripping force on the size of the abrasive. Uniformity and stability and hardness level of the rational choice is to ensure that the grinding wheel hardness important prerequisite for quality.
2-2 grinder grinding machine is the center of the grinding system, grinding performance with the most important influence on the grinding effects of CBN grinding particular. Wheel work to improve line speeds, can significantly improve grinding efficiency, grinding ratio and workpiece surface quality. 80 ~ 125m / s speed has become one of the use of domestic imports CBN special camshaft grinder basic features. Whenever possible, use a high speed is an important prerequisite to improve the technical and economic CBN grinding. And CBN grinding wheel speed grinding characteristics required to have the machine spindle and the overall high rigidity and excellent vibration resistance, CBN high-speed grinding technology which is the basic requirement for the grinder. Do not have such conditions, when the use of CBN grinding wheel, in order to obtain higher metal removal, geometric accuracy and surface ceramic flap disc quality will deteriorate. Corrugated surface quality defects are common, which is generated by the vibration. The reason is that the machine can cause vibration of low rigidity, vibration, poor or grinding wheel design parameters caused by the irrational excessive force.
Using a diamond dressing wheel repair 2-3, dressing can not only improve the efficiency is more important obtain a good grinding wheel topography. Precision trimming device into the higher, the amount of each feed should be able to achieve micron level. Excessive trimming both mass will greatly reduce the impact of the grinding wheel life.
2-4 Cooling
Choose the right kind of coolant and cooling process parameters, tend to have a multiplier effect. 2-5 grinding process parameter optimization of grinding parameters can fully optimize the grinding efficiency, grinding and grinding costs, quality technical and economic indicators have reached equilibrium at a higher level.
CBN hardness is much higher than other conventional abrasives. High hardness means cutting stronger, sharper; CBN has a high abrasion resistance, meaning it harder than normal abrasive wear. The ability to maintain the shape of the grains is one of the main characteristics of a high-performance CBN abrasive; CBN high compressive strength, which means that when used under harsh conditions it can remain intact and not broken particles;
CBN has good thermal conductivity, in the CBN grinding can be realized due to the different nature of certain cold and diamond cutting, the scope of their work material is different. CBN materials for processing tool steel, bearing steel, alloy steel, super alloys, cast iron. Diamond is a material suitable for processing carbide, glass, ceramic, cermet, iron 2, CBN grinding system
CBN grinding with different types of binding agent and the CBN bonded abrasive tool into a certain shape. It is only through rational grinding process, relying on the superiority of the grinder can, in order to maximize its effect. In the CBN grinding technology research and application, the CBN must be abrasive, grinding machines, parts, repair, cooling, grinding and other factors into a system to be optimized in order to obtain the best technical and economic results. CBN grinding technology several important factors to be considered are as follows. 2-1 CBN grinding abrasive in ceramic belt the manufacture of primary consideration and selection of the shape, size, CBN abrasive particle size, concentration, type of binding agent and the use of speed and other parameters. CBN abrasive shapes, dimensions and marking by the standard GB/T6409.2-1996 and GB/T6409.1-1994; CBN abrasive four binder (resin, metal, ceramic, plating) in order to Vitrified fastest growing. This is due to the high ceramic CBN abrasive grinding efficiency, good shape retention, durability, ease of repair, wheel long life, thus becoming efficient, high-precision grinding abrasive of choice. Wheel concentration level indicates how much the number of grains in the grinding wheel during the grinding involved in the work surface. High concentrations can bring high grinding ratio and low surface roughness. If 200% of the concentration ratio of 100% concentration extend wheel life 4-5 times. The hardness of the abrasive binder level indicates the gripping force on the size of the abrasive. Uniformity and stability and hardness level of the rational choice is to ensure that the grinding wheel hardness important prerequisite for quality.
2-2 grinder grinding machine is the center of the grinding system, grinding performance with the most important influence on the grinding effects of CBN grinding particular. Wheel work to improve line speeds, can significantly improve grinding efficiency, grinding ratio and workpiece surface quality. 80 ~ 125m / s speed has become one of the use of domestic imports CBN special camshaft grinder basic features. Whenever possible, use a high speed is an important prerequisite to improve the technical and economic CBN grinding. And CBN grinding wheel speed grinding characteristics required to have the machine spindle and the overall high rigidity and excellent vibration resistance, CBN high-speed grinding technology which is the basic requirement for the grinder. Do not have such conditions, when the use of CBN grinding wheel, in order to obtain higher metal removal, geometric accuracy and surface ceramic flap disc quality will deteriorate. Corrugated surface quality defects are common, which is generated by the vibration. The reason is that the machine can cause vibration of low rigidity, vibration, poor or grinding wheel design parameters caused by the irrational excessive force.
Using a diamond dressing wheel repair 2-3, dressing can not only improve the efficiency is more important obtain a good grinding wheel topography. Precision trimming device into the higher, the amount of each feed should be able to achieve micron level. Excessive trimming both mass will greatly reduce the impact of the grinding wheel life.
2-4 Cooling
Choose the right kind of coolant and cooling process parameters, tend to have a multiplier effect. 2-5 grinding process parameter optimization of grinding parameters can fully optimize the grinding efficiency, grinding and grinding costs, quality technical and economic indicators have reached equilibrium at a higher level.
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