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In twentieth Century, copper was widely used as electrode material in EDM. At that time, only in the production of large electrodes and mold processing requirements are not high or rough machining, graphite materials will become an alternative. Some of the early contact with the graphite electrode of the technical staff has a general impression: dirty, surface effect is not good, the processing efficiency is not high and so on. With the development of high and new technology, and constantly improve the manufacturing process of graphite material, it can satisfy different EDM demand of graphite materials emerge in an endless stream, market graphite for high speed milling machine tool arises at the historic moment, numerical control electric spark machine tool…
Steelmaking using carburizing agent and cast iron using carburizing agent, and some other materials are also useful for adding to the carburizing agent, such as brake pads with additive, friction material. Recarburizer belongs to external steel and iron carbon materials. High quality carburizing agent additive is essential for production of high quality steel. Carburizing agent, there are many kinds of raw materials, production processes are different, wood carbon, carbon coal, coke, graphite, etc., in which various categories and a lot of small type. High quality carburizing agent generally refers to after graphite carburant, in under the condition of high temperature and carbon atoms arranged in graphite morphology, so called for graphitization. Graphite can reduce the content of impurities in the…
The isostatic pressing graphite technology is a kind of super high pressure hydraulic equipment,and its working principle is that products formed under the condition of equal pressure and high pressure in all directions and closed high-pressure container . The working principle of the isostatic pressure is Pascal's Law: "the pressure of the medium (liquid or gas) in the closed vessel can be transferred to all directions equally." Isostatic pressing technology has had 70 years of history, was used in the powder molding of powder metallurgy initially . In the past 20 years, the isostatic pressure technology has been widely used in many fields such as ceramic casting, atomic energy, tool manufacturing, plastics, super high-pressure sterilization of food and graphite, ceramics,…
