PURPOSE: To subject thick steel materials to continuous hot rolling at a good yield and high efficiency by heatint the ends of the thick steel materials to be pressure-welded to the hot working temp., pressing the ends with jigs which are respectively meshable with each other so as to have the thickness equal to the thickness of the steel materials when meshed and rolling the materials after meshing.
CONSTITUTION: The ends 1a, 2a of thick steel materials 1, 2 to be pressure- welded are hot pressed by jigs 5 and are meshed with each other so as to have the thickness equal to the thickness of the steel materials when the jigs are meshed with each other. The meshed materials 1, 2 are hot rolled, by which the thick walled steel materials 1, 2 are continuously hot rolled at a good yield and high efficiency.
WAKAMOTO IKUO
MINAMI NAGIO
MIYAGUCHI TADAHISA
| JPS59141303A | 1984-08-14 |