| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.25 ( September 1991 ) Special Issue on 'H-Shapes with Fixed Outer Dimension' and 'Steel Pipe' ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| Manufacturing Method and Equipment for Hot Rolled H-Shapes with Fixed Outer Dimension Tsuneo Seto, Atsushi Hatanaka, Yoshio Yoshimura, Yoji Fujimoto, Kazushi Baba, Yoshihiro Omoto |
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Synopsis : Newly developed techniques are described that eliminate the constraint of fixed inner dimensions, which is unavoidable when rolling H-shapes by a conventional universal mill. These techniques involve (1) web inner width reduction by a universal finishing mill, which has variable-width horizontal rolls and a vertical through-roll guide to from fixed web height, (2) special rolling by a new universal method to produce a fixed flange width, (3) straightening by a variable-width roller, and (4) a measurement control system that utilizes a high accuracy laser measurement method. These techniques allow the manufacture of H-shapes to accurate fixed outer dimensions, which cannot be achieved by conventional rolling methods. |
| TextiPDF: 9p./382kbj |