Silicon carbon rod protection sleeve has high temperature resistance, corrosion resistance, fast heat conduction, oxidation resistance, high temperature deformation, no shrinkage, high strength, high hardness, good wear resistance, good thermal shock resistance, high thermal conductivity and oxidation resistance. Good, long service life and other characteristics, both ends are equipped with special high-temperature insulating sleeves, which can effectively prevent the corrosion of electric heating elements ( including silicon carbide rods, electric furnace wires, etc. ) by metal solution , and all indicators are better than various Graphite products have reached the domestic advanced level and are widely used in non-ferrous metal smelting, aluminum products degassing systems, printing and dyeing machinery, zinc-aluminum smelting and product processing industries.