FIELD: processing of plastics, in particular, production of products from powdered polytetrafluoroethylene, applicable in manufacture of movable reciprocating packing components of friction pairs in various branches of engineering.
SUBSTANCE: the method consists in pressing of powdered polytetrafluoroethylene, sintering and cooling. Then, the sintered bars are heated at a temperature of 643+-5K up to melt in restricting mandrels without pressure. The required linear dimensions are attained by multiple thermal treatment in the respective mandrels.
EFFECT: simplified production process and expanded range of products.
4 dwg, 4 ex
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