Graphite electrode sales, has a high temperature resistance, the melting point of graphite is 3850±50℃, the boiling point is 4250℃, even after the ultra-high temperature arc burning, weight loss is very small, the thermal expansion coefficient is very small. The strength of graphite increases with the increase of temperature. At 2000℃, the strength of graphite is doubled.
Graphite products are good at conducting electricity and heat. Its conductivity is one hundred times higher than that of ordinary non-metallic minerals. Thermal conductivity of steel, iron, lead and other metal materials. The thermal conductivity decreases with the increase of temperature. Graphite conducts electricity because each carbon atom in the graphite forms only three covalent bonds with other carbon atoms, and each carbon atom still retains one free electron to transfer charge.
The lubrication property of graphite electrode sales depends on the size of graphite flake. The larger the flake, the smaller the friction coefficient, and the better the lubrication property.
The specially processed graphite electrode has the characteristics of corrosion resistance, good thermal conductivity and low permeability, which can be widely used in making heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, filters and pumps. Widely used in petrochemical industry, hydrometallurgy, acid and alkali production, synthetic fiber, papermaking and other industrial sectors, can save a lot of metal materials.
It is worth noting that impervious graphite varieties due to the resin contained in different, corrosion resistance is also different. Such as phenolic resin impregnated acid resistant, but not alkali resistant; The resin impregnated with furfuryl alcohol is resistant to both acid and alkali. Different varieties of heat resistance is also different: carbon and graphite in the reductive atmosphere can withstand 2000~3000℃, in the oxidation atmosphere at 350℃ and 400℃ respectively began to oxidize; Impermeable graphite varieties vary with the impregnating agent, generally by phenolic or furfuryl alcohol impregnated in the heat resistance below 180 ℃.
The graphite electrode sales, specializing in the production of graphite electrode products for more than 20 years, the product variety is complete, reasonable price concessions, graphite electrode classification in detail, is worthy of customer trustquality manufacturers. Welcome customers to consult and purchase.