SELF-LUBRICATED COMPOSITE MATERIALS FOR HIGH-PRESSURE AIR SEALS (FILAMENT-WOUND STRUCTURES).

Abstract

In a continuing program to exploit the unusual properties and potential advantages of solid composite lubricants, a sleeve-type seal based on reinforced polytetrafluoroethylene was developed as a piston seal for high-pressure air compressors. The status of the material development for maximizing the effectiveness and life of this seal is reported. Specifically considered is the use of an organized metallic filament-winding technique to provide a superior reinforcing matrix as compared to the randomly dispersed particles and fibers used heretofore. New approaches to combinations of composites for this and other applications have been uncovered. It is possible to expect reliable compressor operation at 5000 psi using such seals in lieu of conventional split rings for periods beyond 1000 hours with very low rates of wear and air leakage. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1966
Accession Number
AD0633238

Entities

People

  • Harry Halliwell
  • J. R. Ward

Tags

DTIC Thesaurus Topics

  • Air Compressors
  • Composite Materials
  • Compressors
  • Filaments
  • Films
  • Fluoropolymers
  • High Pressure
  • Lubricants
  • Materials
  • Particles
  • Pneumatic Equipment
  • Specialty Uses Of Chemicals

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).