METHODS OF HEAT TREATMENT, INCLUDING FLAME HARDENING OF BOLTED-RAIL FROGS AND SPLIT SWITCHES, TOGETHER WITH METHODS OF REPAIR BY WELDING

Information for this investigation was obtained from laboratory and field tests of welding on flame-hardened, heat-treated and control-cooled carbon steel rails and the low alloy chrome-vanadium rail for determining the best method of building up battered crossing corners and joints. Simulated crossing intersections of bolted construction, three rail type in one side of the track, were used. Brinell hardness readings and Tukon micro-hardness readings were taken in the laboratory. For taking hardness readings on the running rails in the field, a special clamp for the King tester was made of stainless steel. Further tests must be conducted to determine the best welding procedures for building up the batter on the tread corners.

• Corporate Authors:

  American Railway Engineering Association

  59 East Van Buren Street
  Chicago, IL  United States  60605
• Publication Date: 1955

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 878-888
• Serial:
  • AREA BULLETIN
  • Volume: 56
  • Publisher: American Railway Engineering Association

Subject/Index Terms

• TRT Terms: Bolted joints; Bolts; Flame hardening; Heat treated rail; Joints; Rail steel; Welding
• Old TRIS Terms: Rail metallurgy
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 00052409
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM