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目前显示的是 七月, 2020的博文

Choose suitable diamond and CBN grinding wheel

Different grinding wheels should be used for different workpiece materials and different processing requirements. Even if grinding the same workpiece material, the grinding ratio of different brands of grinding wheels may differ by 2~5 times, so the appropriate grinding wheel should be selected. Performance interpretation Diamond grinding wheel is the best grinding tool for hard alloy, optical glass, ceramics, gemstones and non-metallic materials with high hardness and high brittleness such as stone. But because diamond is easily carbonized at 700℃~800℃, it is not suitable for grinding steel. CBN slightly inferior to the hardness of diamond, but its thermal stability (which can withstand temperatures up to 1300 ℃ ~ 1400 ℃), it is not like a diamond in the high temperature decomposition, namely, oxidation and graphitization, and the elements of iron group chemical inertness, high thermal conductivity (46 times that of corundum), made of the grinding wheel long life (up to several dozen...

What is the price of marble diamond saw blade?

This is a good question that many marble diamond saw blade dealers concern. The prices are bases on blade blank, blade diameter,  diamond segment  and its life and sharpness. Due to affect by many factors ,marble diamond blade prices have not an exact answer, for example, 14inch marble diamond saw blade, typically ranges in price between USD 30-USD 50, while ChinShine Brand marble diamond saw blade is between USD25 to $38, there is not a standard answer. So many customers will ask, why are marble diamond blade prices such a big difference among different suppliers? Not matter you buy the  marble diamond blade  for yourself or you are diamond blade dealer, you need to search the  professional marble diamond saw blade manufacturer who have quality protection, advanced production technology, do not choose those low price and unstable quality diamond saw blades. While some marble diamond saw blade manufacturer prices started business will provide very...

How to improve the mechanical strength of diamond grinding wheel

In order to improve the heat resistance and mechanical strength of phenolic resin binder in diamond grinding wheels, the modification of phenolic resin was achieved by adding various fillers in the preparation process of  resin grinding wheels . If copper powder is added, the heat resistance of resin can be improved. Adding zinc oxide, chromium oxide and other substances can improve the mechanical strength of the resin. The addition of flake graphite, molybdenum disulfide and other soft materials can improve the grinding performance of resin bonded abrasive tools. However, the most effective way to improve the properties of phenolic resin is to add organic modifiers, which may be because organic substances are more compatible with phenolic resin in terms of structure and surface properties than inorganic substances. Polyimide resin is one of the best heat resistance resin, polyimide resin as binder preparation of  diamond grinding wheel  first appeared in the United State...

The selection of diamond size and concentration in diamond grinding wheel

1. Diamond grinding wheel  series: Artificial diamond, also known as "industrial diamond", is the hardest substance known to man in nature today, as is natural diamond. Due to its high hardness, compressive strength and wear resistance, acid and alkaline resistance, as well as good thermal conductivity and semiconductor properties, it is made into a variety of tools products can be widely used in metallurgy, machinery, geology, petroleum, electronics, optics, construction, stone and other fields. Artificial diamond grinding wheel is a kind of artificial diamond product made from artificial diamond and other metal powder through high temperature and pressure, which can be widely used in the grinding of hard alloy, non-ferrous metal and non-metal. 2.Particle size to choose The size of synthetic diamond is indicated by its size number. The size of the workpiece directly affects the surface roughness, grinding efficiency and tool loss. In principle, the choice of particle size is...

Application of diamond wheel | Prctools.com

1. Select the right  grinding wheel Different grinding wheels should be used for different workpiece materials and different processing requirements. Even if grinding the same workpiece material, the grinding ratio of different brands of grinding wheels may differ by 2~5 times, so the appropriate grinding wheel should be selected. Diamond grinding wheel is the best grinding tool for hard alloy, optical glass, ceramics, gemstones and stone non-metallic materials with high hardness and high brittleness. But because diamond is easy to be carbonized at 700℃~800℃, it is not suitable for grinding steel. CBN slightly inferior to the hardness of diamond, but its thermal stability (which can withstand temperatures up to 1300 ℃ ~ 1400 ℃), it is not like a diamond in the high temperature decomposition, namely, oxidation and graphitization, and the elements of iron group chemical inertness, high thermal conductivity (46 times that of corundum), made of the grinding wheel long life...

Maintenance method for diamond grinding wheel | Prctools.com

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1. If the  diamond grinding wheel  is not used immediately, it should be put flat or hung up with the inner hole. Other articles or feet should not be piled on the flat saw blade. ​ 2. When the diamond grinding wheel is no longer sharp and the cutting surface is rough, it must be repolished in a timely manner. Grinding can not change the original Angle, and break the dynamic balance. 3. The inner diameter correction and hole positioning processing of diamond grinding wheel must be carried out by the factory. If the processing is not good, will affect the product use effect, and may occur danger, reaming The upper aperture should not exceed 20mm, so as not to affect the balance of stress. 4. Selection of alloy grinding wheel. 1)  Resin bonded diamond grinding wheel  has a weak binding strength, so its self-sharpening performance is good enough, and it is not easy to block, high grinding efficiency, low grinding force and low grinding temperature. ...

Comparison of dressing methods of diamond grinding wheel

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Diamond grinding wheel  has a very good grinding performance, and is widely used in the grinding of industrial ceramics, hard alloy, optical glass, diamond tools and precious stones, etc. ​ But diamond wheel hardness is very high, so it is difficult to finish the big, and easy to occur in the process of finishing congestion problems, seriously affecting grinding efficiency, surface quality and repair limits the application of diamond grinding wheel, in this paper, the diamond grinding wheel finishing methods of comparison and research, analyzes the various modification methods of shaping principle, characteristics and application occasions. 1 Grinding dressing method 1.1 Principles of grinding dressing method When finishing is using ordinary abrasive grinding wheel and diamond wheel for grinding, diamond grinding wheel rotation, and rotation of the ordinary abrasive grinding wheel in the also do feed movement, on the surface of the diamond grinding wheel grinding gra...

Tool grinding technology prat two | Prctools.com

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Grinding wheels  of different materials are suitable for grinding tools of different materials. The size ofabrasiveparticles used in different parts of the tool is also different in order to ensure the best combination of edge protection and machining efficiency. ​ Alumina: used to grind HSS tools. The grinding wheel is cheap and easy to modify into different shapes for grinding complex cutting tools (corundum). Silicon carbide: used to correct  CBN grinding wheel  and  diamond grinding wheel . CBN (cubic boron carbide): used to grind HSS tools. The price is high, but it is durable. Internationally, grinding wheels are represented by B, such as B 107, where 107 represents the size of the abrasive diameter. Diamond: used for grinding HM tools, high price, but durable. Thegrinding wheelis represented by D, such as D 64, where 64 represents the size of the abrasive diameter. In order to facilitate the grinding of different parts of the tool,...

Tool grinding technology part one | Prctools.com

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The common tool materials in the tool grinding include high-speed steel (HSS), powder metallurgy high-speed steel (PM-HSS), hard alloy (HM), PCD, CBN, cermet and  other super-hard materials . The high-speed steel tool is sharp, the toughness is good, the hardness of the hard alloy tool is high, and the toughness is poor. The density of the hard alloy cutter is obviously higher than that of the high-speed steel tool. The two materials are the main materials of the drill, the reamer, the hammer and the tap. The performance of the powder metallurgy high-speed steel is between the two materials, and is mainly used for manufacturing the rough cutting knife and the tap. The high-speed steel cutter is not sensitive to the impact because of the good toughness of the material. But the hardness of the hard alloy tool is high and brittle, is sensitive to the collision, and the cutting edge is easy to jump. Therefore, during the grinding process, it is necessary to care for the operation ...

Common superhard abrasive grinding wheel dressing methods

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Superhard abrasive grinding wheel has excellent grinding performance and strong wear resistance, so it does not need to be trimmed often, but it is difficult to trim after initial installation and use of blunt grinding wheel. Especially in recent years, the wide application of superhard materials in production engineering and science and technology has made the application of superhard abrasive grinding wheels increase sharply, and thedressing problem of grinding wheelshas become increasingly acute, which has become an important research topic in the world. So far, many new dressing methods have been developed on the basis of the previous conventional dressing methods. The dressing of superhard abrasive grinding wheel is usually divided into two processes: shaping and dressing. Shaping is the micro cutting of grinding wheel, so that the grinding wheel can achieve the required geometric shape accuracy and make the abrasive tip slightly broken, forming a sharp grinding edge. Dressin...

The application of super-hard abrasive CBN and vitrified grinding wheel

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The super-hard material CBN invention can be used as an abrasive for the manufacture of a grinding wheel, which not only can effectively process the harder steel (HRc 45-65), but also improves the durability of the grinding wheel by a plurality of times. In particular, in the mid-1980s, the research and development of the CBN grinding wheel of the ceramic bonding agent, in particular the technical breakthrough in the correction of the sharp, can be said to be a revolution of the grinding mold in the mid-1980s, in particular by the German Krebs & Riedel. Classification of CBN Grinding Wheel The grinding wheel made of CBN grinding material can be divided into the following four kinds according to different processing technology and the binding agent of different components used. Their properties and uses (refer to the use of machining) are also different. (1) Electroplated CBN/ diamond grinding wheel The production process of the grinding wheel is simple, and the production ...