RAIL PRODUCTION AT THE NO. 2 LARGE SECTION MILL AT FUKUYAMA WORKS

The role which Nippon Kokan's new heavy rail production facility, Fukuyama No. 2 large section mill, plays in the development of Japan's high-speed railway system is discussed. The production equipment and processes employed by the mill are described. Mention is made that the rolling mill has sufficient space such that rail lengths of 50 and 100 meters is no longer a problem. In order to achieve more efficient production, a study was conducted by the steelmaking, blooming/slabbing, and rolling divisions of the mill to determine the quality of rails which could be produced from 13-ton rather than the 7 to 8-ton ingots which were being used. Areas studied included the degree of segregation, sulfur print, macropattern, nonmetallic inclusions, hydrogen content, microscopic detection of the presence of Fe3C, and the mechanical properties throughout the entire length of the rail. Prototype rails produced from the 13-ton ingots were tested at the Research Center of the Japanese National Railways and found to be acceptable. Bar charts showing the mechanical properties, dimensional accuracy, and quality of the rails are given.

  • Corporate Authors:

    Association of Iron and Steel Engineers

    Empire Building
    Pittsburgh, PA  USA  15222
  • Authors:
    • Gino, T
    • Gocho, M
  • Publication Date: 1975-6

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 25-31
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00173049
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Mar 29 1978 12:00AM