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Graphite crucible is usually used in smelting metals, especially precious metals . Graphite crucible is made from high quality graphite, have good thermal conductivity and high temperature resistance, high temperature environment used in the thermal expansion is not only the number is small, but also has thermal shock resistance strain performance, acid and alkali resistant with excellent chemical stability. Multiple variety and complete specifications, used in chemical industry, casting and other industrial sectors, the steel smelting and smelting non-ferrous metal and alloy also has been the most widely used. Graphite crucible due to a high temperature thermal expansion coefficient, and thermal shock has some anti-strain properties, and pH of the solution for anti-corrosive, and has excellent chemical resistance to corrosion…
Graphite mold is mostly carbon, part of the air so that the graphite prone to oxidation at high temperatures, Typically graphite oxide at about 500 ℃ start, and with the graphite mold temperature increases the oxidation rate of oxidation of geometric growth intensified.Graphite mold is mainly graphite machining, and the periphery of each of the carbon atoms linked to three other carbon atoms covalently bonded to constitute a covalent molecule. Graphite mold has been used following areas: 1. artificial graphite die for hot pressing sintering of cemented carbide has the following characteristics: if pressed when the temperature increased to 1350-1450 degrees, the pressure can be reduced to the desired unit 67- 100 kg / sq cm (that is, cold pressure…
What is ultrathin graphite sheet?is it any different from the ordinary graphite sheet? The processing of ultrathin graphite sheet is similar to the ordinary ones: The expanded graphite powder with purity of >98%, put a certain amount of expanded graphite into the hot pressing die,meanwhile,vibrate the die to make the powder dispersed evenly,then place the die onto the powder compressing machine,set the temperature and pressure,and after that,start to heat pressing.keep this situation for a period of time,then get out the graphite sheet and heat it,and make it went through a double roller mill for several times to make finished product. The simple process below: What’s the main application of ultrathin graphite sheet(conductive graphite sheet)? With the development of the information…
