PTFE resin composite material of sealing ring with high thermal conductivity used for rotating shaft and preparation method thereof
A resin composite material and high thermal conductivity technology, applied in the field of composite materials, can solve the problems of small friction coefficient, thermal stability, poor dimensional stability, and low dielectric strength, etc., and achieve increased thermal conductivity, reduced thermal expansion coefficient, and increased thermal conductivity. Effect
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[0022] Example 1-4
[0023] The method for preparing a sealing ring for a high thermal conductivity rotating shaft for an air-conditioning scroll compressor includes the following steps:
[0024] (1) After carbon fiber is soaked in acetone, washed, dried, added to acid solution at 60-70°C and stirred for 0.5-2h, filtered and washed to neutrality to obtain acidified carbon fiber;
[0025] (2) Weigh the raw materials according to the amount, add them to the high-speed mixer, stir at high speed for 2~3min, take it out, and leave it for 2~6h;
[0026] (3) Use a press for cold forming, pressure 10~30MPa, holding time 1min, demoulding to get preformed samples;
[0027] (4) Put the preformed sample into the sintering furnace, sinter it at 400±5℃ for 3~6h, cool it naturally to room temperature along with the furnace, and mechanically process the wear-resistant and dust-proof seal strip for the air scroll compressor.
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