Xi'an graphite fiber reinforced graphite packing packing factory price of steel wire graphite packing graphite packing graphite packing graphite packing nickel wire is dominated by a variety of reinforcing fibers, metal wire (steel, copper, nickel, carbon fiber, pre- Oxygen silk, glass yarn) and other enhanced precision woven graphite yarn as raw material derived. Suitable for high temperature and pressure conditions of dynamic seal. Apart from a few strong oxidant, it can be used to seal hot water, superheated steam, heat transfer fluids, ammonia solution, hydrocarbons, cryogenic liquids and other media, mainly used for high temperature, high pressure, corrosion resistance under medium valves, pumps, reaction sealing autoclave. It is also a unique universal sealing packing. Graphite packing solid phase carbonization reaction continues, the carbon fiber of nitrogen-based non-carbon elements overflow away almost completely, to obtain nearly 100% carbon graphite fibers. The release of nitrogen is small planar hexagonal carbon network further result of the condensation reaction, the solid phase condensation reaction may be graphitized. About 6% to 7% nitrogen are removed during graphitization, and thus the number of residual porosity defects and pores overflow path of travel time, resulting in the process of the porosity of the graphite peak Vp. Shows that at 2200 ℃ or so, almost all nitrogen removal, so that the present value of the porosity; 2200 ℃ after the sharp decline in Vp porosity, density rose sharply, Xiaofang ring condensation denitrification graphite packing process is the main reaction to the fiber elements, the porosity and density result in significant changes.