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Pyrolytic graphite is a new type of carbon material, is the high pure hydrocarbon gas in the furnace pressure in pyrolytic carbon of 1800 DEG C to 2000 C high crystallinity graphite matrix on the chemical vapor deposited, it has a high density (2.20g/cm), and the content of impurities (heat, electricity and magnetism and the anisotropy of mechanical properties. The vacuum degree of 10mmHg can still be maintained at about 1800℃ The process of decomposition of matter. Many inorganic substances and organic matter are heated to a certain degree of decomposition reactions will occur. The pyrolysis process does not involve the reaction of the catalyst, as well as other energy, such as UV radiation. High temperature strength increases with the…
Mold in the home appliance, automobile, mechanical and electrical, aerospace and other industrial fields are increasingly becoming the main production process of industrial mass production equipment, undertake the processing of these products in the industry 60%-90% production. In recent years, the high speed milling has broken through the limitation of the traditional milling, which is difficult to process the material with high hardness, high strength and high toughness. But the EDM has high machining accuracy and surface quality, machining range, especially in the complex and precise, thin-walled, narrow, mold processing high hard materials in the advantage of high speed milling cannot be compared, so the electric discharge machining will be the main means of mould cavity machining. The graphite electrode…
The machining quality of the graphite plate influences its service life directly.It must be processed carefully to reach the standard indicators. it must be uniform such as dipping, the resistivity must be consistent, it also can avoid a part is intact and another part is serious corrosion in the production process so that the total body waste down. It is the key to make a good use environment to prolong the service life of graphite anode plate. In the production process, reduce the impact, keep the working environment clean, detect the circuit on time and organizing the production at a fixed temperature, reduce the degree of oxidation of the air. The Matters needing attention for prolonging the service life of…
