DEVELOPMENT OF ALUMINUM BOBBIN SEALS FOR SEPARABLE CONNECTORS FOR ROCKET FLUID SYSTEMS

Abstract

During earlier research, it was shown that damage to the flanges of the 6061-T6 aluminum AFRPL connector could be prevented if the seal material was softer than the flange material by 20 points Brinell. Under Phase I of follow-on research, five methods of accomplishing this were studied: (1) soft coatings, (2) skin annealing, (3) softer aluminum alloys, (4) anodizing the flange, and (5) special aging of 6061-T6. The overaged 6061 aluminum for the seal was selected because of economic and technical reasons. Repeated-assembly, thermal-gradient, and stress-reversal-bending tests were conducted with helium-leakage rates below the limit of 7 x 10 to the minus 7th power atm cc/sec. Tentative specifications and standards were revised.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1967
Accession Number
AD0817843

Entities

People

  • Bernard Goobich
  • John R. Thompson
  • Thomas M. Trainer

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Assembly
  • Coatings
  • Contracts
  • Ethers
  • Hardness
  • Heat Treatment
  • Manufacturing
  • Mass Spectrometers
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Military Standards
  • Tensile Strength
  • Test And Evaluation
  • Yield Strength

Readers

  • Materials Science and Engineering.
  • Metallurgy