News
The high purity graphite has been applied widely in the industry. It can be processed into various parts such as the graphite grid in vacuum food ; vacuum furnace, single crystal furnace, graphite crucible in electric furnace, the graphite vessel, the heater, the heat shield; the smelting vessel of noble metal se alloy , casting mould; the graphite mold of pressing hard alloy ; electric spark machining graphite; the wear-resistant and heat-resistant shaft; a variety of high temperature heating element. It can be processed according to customer samples and drawings. The production process of high pure graphite and common graphite is roughly the same, but it has the following characteristics: We must select the raw material in low ash content…
Graphite powder is a chemical reaction sensitive material, in the different environment its resistivity will change inside, his resistance values will change, but graphite powder is one of non metal conductive material is very good, as long as the insulating objects ensure graphite powder uninterrupted, like a thin line that will electrify, however, how much the resistance value is, this numerical didn't an accurate number, because the thickness of the graphite powder, used in different materials and environmental graphite resistor values will be different. Because of its special structure, graphite has the following special properties. 1) High temperature resistant: Graphite melting point is 3850 c, the boiling point of 4250 c, even the ultra high temperature arc ignition, weight loss…
Carbon / carbon composites are a new kind of high performance composite materials. It has a high ratio of strong, high specific modulus, high temperature resistance, corrosion resistance and a series of advantages, especially the retention rate of its excellent strength at high temperature, the high temperature in an inert environment of 2000 degrees Celsius, the intensity is not reduced, but increased, which is unmatched by other materials. According to the different materials used in matrix precursor, carbon / carbon composites are divided into CVI base and pitch base. Pitch based carbon / carbon composites have become a hot topic in the research of carbon/carbon composites due to its low price, short preparation period. Pitch based carbon / carbon composite…
