There are two kinds of material, one is pure PTFE, also called polytetrafluoroethylene. One is PTFE adding graphite or PTFE to add carbon fiber. The Teflon ring piston ring, guide ring and throttle ring are the new sealing materials that replace the asbestos disc root and the cast steel piston ring. It has wear resistance, high temperature resistance, long service life, convenient maintenance and replacement, etc. It can protect the inner wall of piston body and cylinder from being smooth.
Because of the above characteristics, polytetrafluoroethylene has been widely used in chemical machinery, electrical, electronic, metallurgical smelting, national defense space, instrumentation, metal surface treatment, pharmaceutical, medical, textile, food and other industries, making it an alternative product. 1. filled polytetrafluoroethylene bearings for food chemical papermaking, textile machinery;
2. porous copper impregnated fluoroplastic metal bearings can be used normally under high temperature, high pressure dry friction and vacuum conditions.
3. the bearing liner made of polytetrafluoroethylene bearing polytetrafluoroethylene fiber blended with glass fiber or other fibers is used for low speed and high load.
4. filled polytetrafluoroethylene piston rings, guide rings, machine tool guides and Bridge sliders.
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