[Noah's Classifieds] - Advertisements of user juniperqq

Please register or log in.

Advertisements of user juniperqq
	Title	Category
add to favorites	Discussion on the electrolytic grinding wheel	Cars - Economy cars
The main difference between electrolytic grinding and anodic mechanical grinding and conductive grinding is grinding wheel made in China. The electrolytic grinding wheel does not contain special alloy components, mainly has good electrical conductivity, requires a uniform distribution of abrasives, and protrudes from the metal substrate by 25-50 microns to maintain the electrolytic gap, accommodate the electrolyte, and prevent the two-pole short circuit. The abrasive grain protrusion is obtained by the reverse polarity dressing grinding wheel. At this time, fast 9'' grinding wheel is connected to the positive electrode, the copper block is trimmed to the negative electrode, and the electrolyte is injected. The voltage is selected to be 8-10 volts, and the current density is 30-50 amps/cm 2. Electrolysis, the surface of the grinding wheel metal is chromatographed, and the reverse electrolysis time is generally 20-30 minutes. Gap measurement is difficult, generally mastered by experience, or with a universal electric meter, one end is in contact with the surface of the grinding wheel, and the other end is in contact with the metal substrate to achieve insulation. Diamond abrasives are often used because of their high hardness, good particle shape, and long life; but they are more expensive. We used alumina abrasives, and we can get better results after testing. When the electrolytic fast 9'' grinding wheel is selected, a single-layer abrasive plating wheel is used to combine the abrasive and the metal by the nickel plating method and has the advantages of small electric resistance and uniform abrasive, but the plating layer is thin, the trimming is difficult, and the service life is short. The other is a metal bond grinding wheel made in China, which is obtained by mixing and sintering a metal powder and an abrasive. It has the advantages of convenient dressing and long service life, but the resistance is slightly larger, and the abrasive distribution is sometimes not uniform enough. Both types of grinding wheels are used in price, and the metal bond grinding wheel is suitable for promotion because of its convenient manufacture and long service life. The company is a company that produces and sells grinding disc, grinding wheel made in China, and so on. Welcome customers to negotiate business.
add to favorites	Storage and use of grinding wheels	Cars
The location where the abrasives are stored should be a smooth and drier place, and the room temperature should not be lower than 5 degrees Celsius. It is advisable to place China long life grinding wheel on the shelf. Do not stack it too high to avoid crushing and collapse. The certificate and mark of the grinding wheel must be placed along with the grinding wheel to prevent confusion. Rubber and resin sheet grinding wheels, stacking height should not exceed 160mm and should be sandwiched between smooth iron plate, above the pressure of a certain load, in order to prevent wheel deformation. When resin and soft rubber wheels are stored for more than one year, they must be retested for strength. Grinding wheel for stainless steel in the process of moving, strictly prohibited rolling, should be carefully lightly placed to prevent vibration and impact caused by cracks, dark lines, cracks, falling edges, and other phenomena to ensure the safety of trial use. China long life grinding wheel should be carefully inspected before installation and hammered with wooden hammers. Flanges should be used to fasten the wheels as they are installed to the grinder or grinder. The outer dimensions of the two lanes must be the same. Is there any crack or abnormal sound? If it is found that the outer diameter of 150mm and larger grinding wheels installed on the flange should be first balanced, and then installed to the grinder for correction, after correction should be balanced again, they can use cracked and mute grinding wheels, strictly prohibit the installation of grinding machine or grinding wheel machine. China grinding wheel supplier, Henan Aurora Abrasive Tool Co., Ltd., has many years of grinding wheel production experience, has become a well-known grinding wheel manufacturer in Henan.
add to favorites	How to grind the surface of the grinding wheel	Cars - Economy cars
High quality 9'' grinding wheel plays a role in grinding. The grinding wheel should pay attention to many problems when grinding. For example, pay attention to the height of the grinding wheel axis and the workpiece axis. When the grinding wheel is polished, there are skills and precautions. What is the specific content? When high quality 9'' grinding wheel, the grinding wheel can usually judge the contour height according to the grinding pattern. The surface of the grinding ball is convex, and the lower half of the surface grinding wheel is used for grinding. At this time, the center position of the grinding wheel should be adjusted to make it The center of the workpiece is contoured until it is cross-webbed by the surface of the sphere. When high quality 9'' grinding wheel grinds the outer spherical surface, the error should be controlled within 0.003-0.004mm. The grinding wheel frame should be rotated at a certain angle, and the trimming of the inner hole size of the grinding wheel should be completed before the mechanical adjustment. After the grinding wheel is blunt in the grinding process, it is not necessary to trim the inner hole, as long as the end surface of the grinding wheel is trimmed with a sandbar. The grinding zone is hot due to the intense friction. This can cause stress and deformation of the workpiece and even burn the surface of the workpiece. Therefore, a large amount of coolant must be injected during grinding to reduce the grinding temperature. The coolant can also act as chipping and lubrication. After high quality 9'' grinding wheel of the grinding wheel is blunt, the grinding force also increases, causing the abrasive grain to break or fall off, and the sharp edge is re-exposed. This characteristic is called self-sharpness. Self-sharpening allows the grinding to proceed normally within a certain period of time, but manual grinding should be performed after a certain working time to avoid vibration, noise and surface quality of the workpiece.
add to favorites	Why install a cooling nozzle for fast 9'' grinding wheel?	Cars - Economy cars
Nowadays, the development of fast 9'' grinding wheel in the hardware industry is something that everyone has seen. The emergence of grinding wheels has played a major role in promoting the development of the hardware industry. The grinding wheel is mainly used for grinding, and the grinding wheel can be widely used. There is another reason, the grinding wheel has a main component - the cooling nozzle, what is the important role of fast 9'' grinding wheel cooling nozzle? In the production of difficult and complicated workpieces, because the heat generated by the increase in speed is relatively large, how to cool is also an important skill. The coolant nozzle is an inevitable design step. If the coolant leaves the nozzle and is not directly accurate. Contact points, then fast 9'' grinding wheel will have serious consequences in the course of work, We put the coolant as close as possible to the circumferential speed of fast 9'' grinding wheel and the contact point of the cooling. The dressing line and the coolant nozzle must be installed because it is relatively important for the liquid between the contact points, the wheel table and the wheel. Controlling the cooling nozzle is a very important part of the optimal design of the cooling nozzle in the direction of fast 9'' grinding wheel rotation, otherwise, there will be an inestimable hazard.
add to favorites	What are the factors affecting the properties of high quality grinding disc?	Cars
There are many kinds of grinding wheels, each kind of high quality grinding disc has its own characteristics, these characteristics will also be affected by some factors, as for resin grinding wheel, its characteristics are mainly affected by abrasive, particle size, hardness, binder, shape and size, and other factors, how is the specific impact? Now let's take a look. 1.Abrasive: Abrasive is responsible for cutting work, so it must be sharp, and has high hardness, good heat resistance, and a certain toughness. 2.Particle size: particle size is divided into two types of abrasive and micro powder. Its choice is mainly related to machined surface roughness and productivity. Generally speaking, the smaller the abrasive particles, the better the surface roughness of grinding. 3.Binder: Thigh-quality impact resistance, heat resistance and corrosion resistance of the high quality grinding disc are mainly determined by the properties of the binder. 4. Hardness: refers to the degree of abrasive particles on the surface of resin grinding wheel under the action of grinding force is easy to fall off, mainly depends on the performance of the binder, the number of high quality grinding disc manufacturing process.
add to favorites	what is a grinding wheel	Cars
Outline of grinding wheel: Fast 9'' grinding wheel is the most important grinding tool in the grinding process. The grinding wheel is a porous body made by adding binder into the abrasive, then compacted, dried and roasted. Because of the different abrasive, binder and manufacturing technology, the characteristics of grinding wheels vary greatly, so the grinding quality, productivity, and economy have an important impact. Classification of grinding wheels: According to the abrasive used, it can be divided into ordinary abrasive (corundum and silicon carbide etc.) grinding wheel, natural abrasive superhard abrasive and grinding wheel (diamond and cubic boron nitride etc.). According to the shape can be divided into a flat grinding wheel, bevel grinding wheel, cylindrical grinding wheel, cup grinding wheel, dish grinding wheel, etc. According to the binder can be divided into the ceramic grinding wheel, resin grinding wheel, rubber grinding wheel, metal grinding wheel, etc. According to size, it can be divided into fast 9''grinding wheel, 4'' grinding disc, 4.5''grinding wheel, etc. Properties of grinding wheels: The fast 9'' grinding wheel is a circular consolidation grinding tool with a through hole made of abrasive and binder. The characteristics of the grinding wheel are determined by abrasive, particle size, hardness, binder, shape, and size.
add to favorites	Dressing technology of grinding wheel	Cars
Under the action of friction and extrusion, the edges and corners of the high efficient metal abrasive disc become blunt gradually, or when grinding tough materials, the debris is often embedded in the pores on the surface of the grinding wheels, so that the surface of the grinding wheels is blocked, and finally the cutting ability of the grinding wheels is lost. At this time, there will be a slippage between the high efficient metal abrasive disc and the workpiece and may cause vibration and noise, so that the grinding efficiency will be reduced, the surface roughness will become worse. At the same time, because of the increase of grinding force and grinding heat, workpiece deformation and grinding accuracy will be affected, the serious grinding surface will appear burnt and small cracks. In addition, because of the uneven hardness of the highly efficient metal abrasive disc and the different working conditions of the abrasive, the abrasive wear on the working surface of the grinding wheel is uneven, and the number of abrasive particles in different parts is different, resulting in the loss of the shape accuracy of the grinding wheel, affecting the shape accuracy and roughness of the workpiece surface. Wheels must be trimmed to remove a layer of abrasive, so that the surface of the grinding wheel is exposed again to smooth sharp abrasive grains, in order to restore the cutting ability and profile accuracy of the highly efficient metal abrasive disc.
add to favorites	Importance of cooling of diamond wheels	Hardware - Hard disks
Below, China grinding wheel supplier will share the importance of cooling diamond wheels. The progress of industrialization has promoted the development of the times. More and more high-tech products emerge as the times require. In the hardware industry, dressing pens are gradually replaced by diamond dressing wheels. Our company is developing better and better in this series of diamond grinding wheels. Work is very important. It is also important to protect diamond wheels and grinding wheels and prolong their life. Coolant nozzle is one of the most important designs in the manufacture of difficult and complicated workpieces. If the coolant leaves the nozzle and does not reach the contact point directly, it will be released during the operation of diamond grinding wheels. There is an inestimable serious consequence, so we should try to keep the coolant close to the circumferential speed of the China long life grinding wheel and the contact point of the regenerative cooling. In the dressing line, the coolant nozzle must be installed because it is relatively important for the liquid between the contact points, between the grinding wheel and the wheel, in the direction of wheel rotation. The controlled cooling nozzle is a very important link in the optimization design of the cooling nozzle, otherwise, it will have incalculable benefits. Above introduced the diamond grinding wheel for stainless steel in the production process of cooling link is also very important, so the installation of the cooling system is also related to the life of diamond grinding wheel and operator safety issues, we should pay attention to this issue.
add to favorites	What are the differences between molds and abrasives?	Cars - Pickups
What are the differences between molds and abrasives? Abrasives refer to the production and daily life used for China abrasive tools for metal and equipment, usually refers to grinding wheels, grinding blocks, abrasive cloth, abrasive paper, grinding head, file, grinding plate, etc. Mould refers to a kind of production tool that can produce parts with certain shape and size, which is usually called mould. For example, TV sets, telephone shells, plastic barrels, and other commodities, plastic heating and softening injection mold cooling molding production. The steamed rice cooker is also pressed into a shape from a metal flat mold. Any commodity is made by mould, so it can be said that without mould, no product can be produced. What are the differences between molds and China abrasive tools for metal? The rapid development of mold manufacturing technology has become an important part of modern manufacturing technology. For example, die CAD/CAM technology, die laser rapid prototyping technology, die accurate prototyping technology, die processing technology, die design using finite element method, boundary element method flow, cooling, heat transfer process dynamic simulation technology, die CIMS technology, mold DNM technology, and numerical control technology have been developed, covering almost all the existing. Substitute manufacturing technology. Do you know the difference between molds and China abrasive tools for metal??
add to favorites	What are the uses of cemented carbide wheels?	Hardware
Cemented carbide grinding wheels are widely used. Now more and more places begin to use this kind of grinding wheels. The main reason for this effect is that it is more popular. So we have a specific understanding of the use of cemented carbide grinding wheels, what are they? 1, geological mine tools: geological tools are also a major use of carbide wheels. 2. High-pressure and high-temperature resistant cavity: one of the uses is to produce synthetic diamond anvil, pressure cylinder, and other products, anvil, pressure cylinder carbide grinding wheel has accounted for 9% of China's total carbide cheap metal grinding disc production. 3. Cutting tools: Cemented carbide grinding wheel can be used as a variety of cutting tools. The amount of cemented carbide high efficient metal abrasive disc used in cutting tools in China accounts for about one-third of the total cemented carbide grinding wheel output, of which about 78% is used for welding tools and about 22% is used for indexable tools. 4, grinding CBN on titanium alloy wheels is a good choice for grinding wheels. 5. Wear-resistant parts made of cemented carbide grinding wheels include nozzles, guideways, plungers, balls, tire anti-skid nails, snow plows, etc. These can be seen that the carbide China grinding abrasive disc has a wide range of uses, its self-sharpening is good, grinding heat is small, not easy to plug, reduce the occurrence of burns in grinding, so it is widely used. We can refer to the above summary for its conclusion.
add to favorites	The cause of grinding concern	Hardware - Memory chips
Most of the abrasives are artificial abrasives made of abrasives and binders, which have been used in many industries, and can have this effect, mainly because of its multiple advantages. The following is a summary of the reasons for concern, to understand these reasons. 1, have a certain degree of flexibility. Compared with ceramic abrasives, resin Abrasives have good toughness, plasticity and ductility. Its elastic modulus (E) is several times lower than that of ceramics. Therefore, the resin grinding tool is suitable for the preparation of various specifications of thin high quality metal grinding disc and high-speed cutting abrasive wheel. At the same time, because of some elastic deformation, the grinding force can be buffered. Therefore, the grinding effect is good, the polishing effect is good, and the roughness of the machined surface can be improved. 2.High bonding strength. Compared with the ceramic bond, the resin bond has higher bond strength, the linear velocity of resin 180622mm metal grinding disc is 80 ~ 120m / s, and it can withstand greater grinding pressure. The grinding pressure of heavy duty grinding wheel is as high as 10 65 Rough grinding with special grinding wheels for high speed and heavy load is safe to operate, suitable for high speed grinding and large feed grinding, and has high grinding efficiency. 3, can be made into various complex shapes and special requirements of abrasives. Because of the low hardening temperature, room temperature hardening and low shrinkage of resin bonded abrasive tools, abrasive tools with various complex shapes and special requirements can be made. For example: the use of glass fiber reinforced resin grinding wheels, easy chip removal, good heat dissipation of porous resin grinding wheels and groove grinding wheels; improve the grinding process conditions of bolt fastening grinding wheels, electrolytic grinding wheels, polishing grinding wheels; and cylindrical, bowl-shaped, butterfly-shaped and other special-shaped grinding wheels. 4. The scope of application is wide. Because of the variety of new resin bond, resin abrasives with various strength and properties can be made. Therefore, it can be widely used in grinding, rough grinding, cutting, semi fine grinding, fine grinding, polishing and other processes. Resin abrasive tools have high bonding strength, high speed, impact resistance, suitable for rough grinding and barren grinding; Resin abrasive tools have good toughness, suitable for cutting process; Resin abrasive tools have good elasticity, a certain degree of polishing, can be used for fine grinding and polishing. Resin abrasives are less heat-resistant and easy to wear. They are suitable for surface grinding and fine grinding. In short, when we use it smoothly, the quality is better is also affected by these aspects, the above four are also the use of more attention to the aspects, only in this way can be used in the future more smoothly. If you look for China cheap grinding disc price again, you can come to our website and have a look.
add to favorites	What are the advantages of diamond grinding wheel pin than manual?	Cars - Economy cars
Here we share the advantages of diamond fast 9'' grinding wheel than manual grinding. Today I will teach you the advantages of diamond grinding wheel grinding than manual grinding, I hope to help you in the future can be used, please follow the small edition to understand the following content. Because of the high speed and low heat dissipation time, the wear rate of diamond high quality 9'' grinding wheel is large. This is because the diamond abrasive is poor in heat resistance and easy to carbonize, but in manual grinding, because of the low grinding speed, the wear of diamond abrasive decreased. This is due to low grinding speed, long heat dissipation time and low grinding temperature. It can be seen that diamond abrasive is not only high in life but also economical in low speed manual grinding. The diamond grinding wheel rotates at a certain speed and rubs across the contact surface of the two electrodes at a certain pressure. At the same time, the grinding fluid is sprayed into the contact surface between the two electrodes and the grinding wheel. When the power supply is switched on, the contact discharge between the electrode and the diamond grinding wheel occurs, thus causing the discharge erosion of the metal bond of the grinding peak and the diamond. The stone particles are partly exposed and prominent. In this way, diamond grinding wheels can be repaired. The advantages of diamond grinding wheel made in China over manual grinding are described above. Our company is engaged in diamond grinding wheel industry for more than ten years. We have rich production experience and 100% guarantee of product quality. If you need to consult or purchase, you can call our service hotline.
add to favorites	Where to choose the wheel from?	Cars
Where to choose the wheel from? There are many kinds of grinding wheels. Whether the fast cheap metal grinding disc is suitable or not directly affects the quality of grinding. Let the grinding wheel manufacturer teach you how to select the grinding wheels from which aspects to choose. The choice of abrasive, the choice of tough abrasive, abrasive choice mainly depends on the workpiece materials and heat treatment methods. The choice of particle size depends mainly on the surface roughness and grinding efficiency of the workpiece being grinded. When 180622mm metal grinding disc with coarse grinding wheel, the production efficiency is high. When grinding with fine grinding wheel, the workpiece surface roughness is better. The selection of binders should be considered according to the grinding method, speed and surface processing requirements. The selection of the organization mainly considers the pressure of the workpiece, the grinding method, the material of the workpiece and so on. The choice of hardness depends mainly on the workpiece material, grinding efficiency and machined surface quality. When the material with low hardness and high elongation is selected, a more brittle abrasive is selected. When hardness is high, abrasive material with higher hardness is selected. Where can I find China cheap grinding disc price? Here is the quality and price you want.
add to favorites	Classification of diamond resin grinding wheels and their respective uses	Cars - Pickups
Diamond resin cheap metal grinding disc is a kind of grinding wheel which combines resin with diamond. This kind of grinding wheel can increase its strength when cutting, and can effectively control the cutting effect. It is more suitable for grinding and cutting some metal products. Diamond resin high efficient metal abrasive disc has high hardness, high strength, strong grinding ability, good heat resistance, but the production is complex, and the process cycle is long. It is mainly used for grinding high and hard alloy, non-metallic materials, cutting hard and brittle cemented carbide, non-metallic minerals, concrete cutting operations. Such as cemented carbide, ceramics, agate, optical glass, semiconductor materials and wear-resistant cast iron, stone and so on. Diamond resin China grinding abrasive disc can be selected according to the product type: parallel grinding wheel, parallel belt arc grinding wheel, double-sided concave grinding wheel, double-sided bevel grinding wheel, bowl-shaped grinding wheel, etc. According to the classification, the use is different. 1. Parallel arc China high efficient grinding disc: it is mainly used for forming and grinding of cemented carbide and circular arc surface grinding. 2. Parallel grinding wheel: mainly used for external grinding and machining of hard alloy. 3. bowl grinding wheel: mainly used for grinding carbide tools, high-speed steel cutting tools, and milling. 4. double bevel edge cheap grinding disc: mainly used for grinding and grinding of carbide gear hob and thread tool. 5. double sided concave grinding wheel: mainly used for grinding measuring tools and coreless grinding machine.
add to favorites	Lamination of resin cymbal wheel	Cars - Economy cars
Lamination of resin cymbal wheel With the increasing demand of the market for the quality of grinding wheels, especially for high efficiency grinding wheels, the diversification of the formulation of resin fast cheap metal grinding disc manufacturers is more obvious. As a result, the phenomenon of grinding lamination frequently occurs in the manufacture and use of grinding wheels. The lamination of grinding disc should first consider the bonding performance of the mesh (including the volatile content of the mesh). If the mesh containing impregnated resin is not compatible with the phenolic resin used in resin 180622mm metal grinding disc, the glue content is not enough, or the volatile content of the mesh is too high, the lamination of grinding disc will be caused. Excluding the influence factors of mesh, the most important influence factors of grinding layer are the compatibility of the mixture and the lack of fluidity of powder phenolic resin; the second is the stress rebound of the mesh itself in the process of grinding wheel hardening. Therefore, the grinding wheel manufacturer should pay attention to the mesh in the grinding wheel molding process and must be combined with the molding method and hardening curve. Of course, the grinding wheels of high quality grinding disc factory price are relatively few.
add to favorites	Common problems in resin grinding wheel manufacture----equipment	Cars - Pickups
Inspection equipment problem (1) Raw material inspection, process inspection, and ex-factory inspection are important contents for resin high quality metal grinding disc production enterprises to carry out effective inspection and control, but fewer enterprises have truly achieved standard management and standardized management. The main problems are an incomplete system, inadequate function, lax management, out of control of the shortage of inspection equipment, poor quality of inspection personnel and so on. (2) incomplete inspection equipment. Inspection equipment is incomplete, resin 180622mm metal grinding disc inspection equipment has three major pieces: namely rotary strength testing machine; sandblasting hardness machine (or Rockwell hardness machine) - resin slices, grinding pieces in addition; static balancer (for diamond grinding wheel also need dynamic balancer), other should also have thin-section grinding wheel end face, radial runout tester, internal diameter gauge, vernier card. Ruler, fast cheap metal grinding disc cutting performance tester and so on. The inspection equipment lacks proper maintenance and maintenance.
add to favorites	Skinning grinding using ceramic CBN wheel	Hardware
Compared with electroplated CBN wheels, the advantages of ceramic CBN grinding wheels are reflected in A) easy to repair. B) no need to repair. C) the shape and accuracy of the fast 9'' grinding wheel can be guaranteed through dressing. D) porous structure ensures good penetration of coolant and takes away chips. E) longer life. F) the matrix of the 230622mm grinding wheel for stainless steel can be reused, only the new CBN abrasive layer can be replaced. The key to skinning grinding with ceramic CBN wheel Ceramic CBN grinding wheels used for peeling grinding require a high material removal rate, and at the same time, produce as little grinding heat as possible under the premise of achieving high efficiency processing to avoid a series of grinding problems such as burns and cracks. Therefore, the ceramic CBN grinding wheel is required to have a more open structure to ensure enough chip space, and at the same time, the passivated abrasive particles are required to break normally to ensure the sharpness of the grinding wheel made in China, so as to obtain high cutting performance. In addition, for peeling grinding, in the case of high-speed grinding, the chamfer area of the grinding wheel is easy to collapse, abrasive particles are easy to fall off, resulting in a low life of the grinding wheel, and will also affect the quality and accuracy of the workpiece surface. Therefore, how to realize high-efficiency machining while ensuring the service life of the grinding wheel is the key to choose the ceramic CBN grinding wheel for peeling grinding. The traditional CBN grinding wheel with ceramic bond is difficult to ensure high porosity because of its characteristics of the bond system. CBN grinding wheel, the latest technology of Sister technology, is based on the "glass-ceramic" technology. It can provide a very high bond strength, and is compatible with the mechanical, chemical and thermal conductivity of CBN abrasive. Compared with the traditional ceramic bond process, it has more open structure and higher porosity; at the same time, it uses innovative technology to enhance the strength of the bonding bridge, so that the 230622mm grinding wheel for stainless steel has the advantages of greater abrasive grinding force, higher hardness and wear resistance, greatly improving the service life of the fast 9'' grinding wheel, which is very suitable for peeling grinding. Chipping; Higher grinding efficiency and better consistent surface quality of workpiece are very suitable for high precision and high efficiency peeling grinding.