Description

After being treated momentarily under high temperature , flake graphite becomes expandable graphite which can expand ******0 times in volume and still remains the performances of natural flake graphite .Being vermicular , loose and porous , its heat-resistant range under the oxygen-isolated environment is from ***0°C to ***0°***** by good expandability and chemical stability under conditions of high temperature, high pressure and radiation , it is widely used for the dynamic seal and the static seal in petroleum industry, chemical industry, electric industry, space industry, automobile industry, ship industry and instrument industry .