Linzhang Yilong Carbon Co. , Ltd. is a high-tech enterprise specialized in providing one-stop solutions for industrial carbon-graphite products, integrating R & D, production, sales and technical consultation, has first-class processing equipment, advanced detection means and improve after-sales service system. At present, the company mainly has artificial graphite products, special graphite productGraphite electrode classification:
(1) ordinary power graphite electrode (RP) , (2) high-power graphite electrode (HP)(3) quasi-ultra-high-power graphite electrode (SHP)(4) ultra-high-power graphite electrode (UHP) note: Polyxing carbon classification method graphite electrode mainly from: current, density, resistance, flexural strength, the reasons why graphite is used as electrode are as follows: (1) the machining speed of graphite is usually 2 ~ 5 times faster than that of copper, while the electrical discharge machining speed is 2 ~ 3 times faster than that of copper The material is not easy to deform: it has obvious advantages in processing thin-bar electrodes; the softening point of copper is about 1000 degrees, which is easy to deform due to heat; the sublimation temperature of graphite is 3650 degrees; The Coefficient of thermal expansion is only one-thirtieth the size of copper. (2) lighter weight: the density of graphite is only 1/5 of that of copper, so it can reduce the burden of EDM when the large electrode is used in EDM.
There are many kinds of carbonizing agent raw materials, production process is also different, there are wood carbon, coal carbon, coke, graphite, etc. . High-quality carburizing agent generally refers to the graphitization of the carburizing agent, in high temperature conditions, the arrangement of carbon atoms in the microscopic form of graphite, so it is called graphitization. Graphitization can reduce the content of impurities, increase the carbon content of carburizing agent, and reduce the sulfur content. The use of carburizing agent in casting can greatly increase the amount of scrap, reduce the amount of pig iron or no pig iron. The feeding method of electric furnace smelting should put carburizing agent into the furnace with scrap and other materials, small amount of addition can be selected on the surface of hot metal. But to avoid a large number of molten iron into the material, in order to prevent excessive oxidation and there is no obvious carburizing effect and casting carbon content is not enough. The amount of carburizing agent is determined according to the proportion and carbon content of other raw materials. Different types of cast iron, according to the need to choose different types of carburizing agent. The character of carburizing agent itself select pure carbon-containing graphitized material, reduce excessive impurities in pig iron, select appropriate carburizing agent can reduce the cost of casting production. Fold