An attempt to introduce two new sections at the Nizhnii-Tagil Combine on the rail and structural mill is described, viz, heavy R-75 rails and OR-75 ramp rails in small roll-change batches between the normal R-65 rails. Due to the universal nature of the T-Shaped passes in the roughing stands it was found possible to do so to a large extent using the same rolls as used for the R-65 rails. A formula was deduced for calculating the width of the finishing pass which allows for the deformation of the section during subsequent cold straightening in the roller straightening machines. Roll-pass designs, reduction sequences, and methods of mounting the passes in the rolls are presented for rolling these R-75 and OR-75 rails.

  • Corporate Authors:

    Metals Society

    1 Carlton House Terrace
    London SW1Y 5DB,   England 
  • Authors:
    • Feigin, G D
    • German, Im
  • Publication Date: 1974-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00096603
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jul 29 1975 12:00AM