USE OF STEEL 55PP FOR DIESEL LOCOMOTIVE DRIVE GEARS

At the present time drive gears are manufactured from Cr-Ni steels: 12KhN3A, 12Kh2N4A, 20KhN3A, and 20Kh2N4A. The gears are carburized (30 h), which substantially increases their fatigue and contact strength with proper heat treatment. Structurally free cementite in the form of a network in the grain boundaries may be formed when the treatment is not strictly followed, which sharply reduces the fatigue and contact strength. Experimental groups of heavy drive gears were manufactured from the low-hardenability steel adopted in the automobile industry -- 55PP. This work concerns attempts to use this steel for drive gears of electric and diesel locomotives, with use of bulk-surface hardening.

  • Corporate Authors:

    Consultants Bureau

    227 West 17th Street
    New York, NY  USA  10011
  • Authors:
    • Gladyrevskaya, S A
    • Dontsova, L I
    • Salina, A D
    • Kucheryavaya, T I
  • Publication Date: 1977-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00169992
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 30 1978 12:00AM