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          What are the commonly used hard materials?

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          What are the commonly used hard materials?

          Release date:2020-11-18 Author: Click:

          Hard materials include hard alloys, hard materials include hard alloys, and include tungsten carbide powder, tantalum carbide, vanadium carbide, chromium carbide, alloyed tungsten carbide powder, tantalum carbide, vanadium carbide, chromium carbide that make up the hard alloy , Titanium carbide, these hard powders, and diamond (the hard powders of titanium carbide, as well as diamond (C), polycrystalline diamond) cubic boron nitride) PcD (polycrystalline diamond), cBN (cubic boron nitride), and Si3N4 Silicon nitride silicon nitride. Si3N4 silicon nitride. PcD (Polycrystalline Diamond) PcD (Polycrystalline Diamond) is a man-made material that uses diamond particles mixed with a chemical binder and deposited into a coherent structure under a high temperature and high pressure environment. Afterwards, artificial materials with coherent structures are deposited in a high temperature and high pressure environment. cBN (cubic boron nitride) is a polycrystal from PcBN. PcBN is a polycrystal made of cBN (cubic boron nitride) which is derived from PcBN. PcBN is a polymer of poly-cBN particles deposited by PcBN polycrystalline cBN particles and ceramic or metal catalyst binder under high temperature and high pressure and ceramic or metal catalyst binders deposited under high temperature and high pressure. Alloy new material manufacturers


              Fit.


              Si3N4 silicon nitride is a ceramic material with high shatter resistance. Si3N4 silicon nitride is a ceramic material with high shatter resistance. Silicon nitride is a ceramic material with high resistance to crushing. Cemented carbide and carbon-nitrogen compounds--although high-speed steel is useful for drilling hard alloys and carbon-nitrogen compounds--although high-speed steel is useful for drilling and broaching. The application is still very important, and applications such as holes and broaching are still very important, but most metal cutting is done with cemented carbide tools. Cutting is done with cemented carbide tools. For those materials that are very difficult to process, cemented carbide is now gradually being replaced by carbon and nitrogen compounds, materials for processing, and cemented carbide is now gradually being replaced by carbon and nitrogen compounds, ceramic products and superhard materials. Carburized (or sintered) ceramic products and superhard materials replaced. Carburized (or sintered) cemented carbides and carbonitrides are considered by most in the world to be cemented carbides and carbonitrides. Metals are a series of very hard metals made by powder metallurgy technology. It is a series of very hard, fire-resistant and wear-resistant alloys made by powder metallurgy technology. Fire-resistant and wear-resistant alloy. Tiny cemented carbide or nitride particles are "cemented" by the metal binder when the liquid is at the sintering temperature, and "cemented" by the metal binder when the liquid is at the sintering temperature. The composition and properties of individual hard metals are different from those of brass and high-speed steel. The composition and properties of hard metals are different from those of brass and high-speed steel. All hard metals are cermets, which are made of ceramic particles and metal. All hard metals are cermets, combined with binders. Compounded by binding agent.


              

          Section 1 Cemented Carbide


              "Tungsten carbide" is a very hard cemented carbide particle, especially tungsten carbide" is a very hard cemented carbide particle. The appearance of tungsten carbide in the iron-rich matrix makes high-speed steel with excellent processing ability. Capability. Early Cemented carbide is too brittle when used for industrial purposes, but it was soon discovered that tungsten carbide powder and about 10% of the metal, 10% of the metal is weak, but it was soon discovered that the tungsten carbide powder and about 10% of the metal, such as iron, nickel or Cobalt allows the compact to be sintered at about 1500°C, sintered at 1500°C such as iron, nickel or cobalt, and allows the compact to be sintered at about 1500°C. The product produced in this process has low porosity and is produced in this process The product has a low porosity, very high hardness, and considerable strength. The hardness, and considerable strength. The combination of these properties makes the material ideally suitable for cutting metal processing tools. The material is ideally suited Used as a machining tool for cutting metals.? The change of cemented carbide is from brazing cemented carbide embedding to fixture embedding, and the rapid development of coating technology. The rapid development of tool embedding and coating technology.


              The manufacturing method of cemented carbide tool material: The manufacturing method of cemented carbide tool material: One is to be pressed and sintered to a precise shape and size. Another advancement is the application of high-temperature vacuum solid-state infiltration method (HIP). (HIP) application. This method actually allows all the residual porosity in the cemented carbide to be squeezed out by inert gas under high pressure, and the applied temperature is about the sintering temperature. After extrusion, the applied temperature is approximately the sintering temperature. Through this method, the stiffness, method stiffness, crack resistance and seismic performance can be increased by two or three times, and the scrap rate of very large sintered parts can be reduced to a small part of the previous level by three times. Reduce to a small part of the previous level.


              The hardness of cemented carbide depends on the hardening phase content and grain size, that is, the higher the hardening phase content, the finer the grains, and the grain size, that is, the higher the hardening phase content and the finer the grains, the greater the hardness. Hardness also


              Bigger. The toughness of cemented carbide is determined by the bond metal. The higher the content of the bond metal, the greater the bending strength. It is determined that the higher the content of the binder metal, the greater the bending strength. Cemented carbide has high hardness and resistance


              Grinding, strength and toughness Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good heat resistance and corrosion resistance, and a series of excellent properties such as good heat resistance and corrosion resistance, especially its high hardness.


              The temperature and wear resistance, even at 500℃, especially its high hardness and wear resistance, remain basically unchanged even at 500℃, and basically remain unchanged at 1000℃, at 1000℃


              It still has a high hardness. Has a high hardness.


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