MANUFACTURING, RECLAMATION AND EXPLOSIVE DEPTH HARDENING OF RAIL-BOUND AND SELF-GUARDED MANGANESE FROGS ON THE CHESSIE SYSTEM

Rail-bound and self-guarded manganese frogs have been used on the Chessie System for many years. For the past half-century, they have been manufactured or reclaimed at shops operated by the railroad. In May 1961, explosive depth hardening was initiated and the policy established whereby this process was applied to all rail-bound manganese frogs, self-guarded frogs, and one-piece manganese guard rails manufactured or reclaimed by the railroad. This amounts to approximately 90 percent of the systems requirements. In addition, any of these components purchased complete from outside suppliers are sent to the Chessie System and are explosive depth hardened before being put into service. Tests indicate that this process extends the service life of products manufactured from austenitic manganese steel and also acts as a quality control check on the integrity of the products exposed to this process.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1986/1071/1071-007.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=MANUFACTURING%2C+RECLAMATION+AND+EXPLOSIVE+DEPTH+HARDENING+OF+RAIL-BOUND+AND+SELF-GUARDED+MANGANESE+FROGS+ON+THE+CHESSIE+SYSTEM&author=D.+Bates&author=C.+Goodman&author=J.+Winger&publication_year=1986
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309040655
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Railroad Track Structure System Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Bates, D R
  • Goodman, C L
  • Winger, J W
• Publication Date: 1986

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 34-38
• Monograph Title: Rail track and structures
• Serial:
  • Transportation Research Record
  • Issue Number: 1071
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Alloy steel; Frogs (Railroads); Manganese; Service life
• Old TRIS Terms: Explosive depth hardening
• Subject Areas: Design; Highways; Railroads;

Filing Info

• Accession Number: 00474282
• Record Type: Publication
• ISBN: 0309040655
• Files: TRIS, TRB
• Created Date: Oct 31 1988 12:00AM