METHOD OF PRODUCING SEALING MATERIAL FROM POROUS POLYTETRAFLUOROETHYLENE

FIELD: sealings. ^ SUBSTANCE: method includes forming the core made of porous oriented polytetrafluoroethylene and winding single-directed porous polytetrafluoroethylene film on the core. The core is molded by random pressing at least one belt of single-directed polytetrafluoroethylene film strength...

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Bibliographische Detailangaben
Hauptverfasser:	SLOBODSKOJ A.A, D'JAKOV V.E, NESTERENKO A.P, DUSHENKOV A.S, FEDOTOVA L.M, KORTUNOV JU.A
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	BLASTING CYLINDERS ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	FIELD: sealings. ^ SUBSTANCE: method includes forming the core made of porous oriented polytetrafluoroethylene and winding single-directed porous polytetrafluoroethylene film on the core. The core is molded by random pressing at least one belt of single-directed polytetrafluoroethylene film strengthened preliminary by thermal treatment at a temperature of 250-237°C and at least one belt made of soft single-directed porous polytetrafluoroethylene film. The sealing material has core made of a multilayer rope with randomly distributed layers which is made of porous oriented polytetrafluoroethylene film and winding made of porous oriented polytetrafluoroethylene film. ^ EFFECT: simplified manufacturing. ^ 8 cl, 7 dwg