A Low Cost Support Post for SSC Quadrupole Magnets and Other Cryogenic Applications

  • M. W. Hiller
  • R. J. Kunz
  • G. A. Lehmann
  • M. J. Nilles
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)

Abstract

An injection molded support post has been designed and tested for use in the cryostat of the 5.4 meter long SSC Collider Quadrupole Magnet (CQM). This glass reinforced thermoplastic support is less costly than the complex alternative post designs that consist of filament wound tubes with thermal shrink fit metallic end pieces. The near net shape injection molding process delivers customized components at production rates suitable for present and proposed large scale cryogenic projects such as large accelerators, SMES, and Maglev. In addition, standard shapes (plates, tubes, threaded rods, and fasteners) comprised of this composite are available as catalog items.

This paper presents the design considerations, material testing, and validation of predicted structural performance through component testing. Test results reported herein include compressive strength validations, as well as previously unreported creep, thermal conductivity, and thermal contraction data. A delineated reliability method is discussed for verifying compliance with apportioned reliability targets using a synthesis of the FEA and test data. Also the design approach and data presented here can be extended toward the design of low cost mass produced supports for other cryogenic applications.

Keywords

Creep Data Thermal Contraction Secondary Creep Support Post Cold Mass 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • M. W. Hiller
    • 1
  • R. J. Kunz
    • 1
  • G. A. Lehmann
    • 1
  • M. J. Nilles
    • 1
  1. 1.Babcock and Wilcox, Accelerator and Magnet SystemsLynchburgUSA

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