SLACK-QUENCHING OF RAILS USING TWO-STAGE FLAME HEATING

A heavy-haul mineral railroad in Brazil uses rail hardened by the slack-quenching process. This involves two-stage heating with a gas flame to insure the formation of fine pearlite, a process that was optimized by laboratory tests before being applied in the field. After preheating to 500 deg C, the rail head is heated rapidly to 1000 deg C before being cooled by compressed air. A fine pearlitic structure of uniform Hv370 hardness is obtained.

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  • Corporate Authors:

    IPC Transport Press, Limited

    Dorset House, Stamford Street
    London SE1 9LU,   England 
  • Publication Date: 1980-10

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Filing Info

  • Accession Number: 00322792
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 30 1980 12:00AM