Method of plate rolling and equipment therefor
AssigneeKawasaki Steel Corporation
InventorsTaketo Okumura, Taiji Tsukahara, Takashi Mikuriya, Hideki Watanabe, Katsutoshi Katada
Life of this patent
Estimating the term…
Abstract
This invention relates to a method of plate rolling, wherein, in plate rolling, a value corresponding to the difference in width between the center and the end portions of a material to be rolled is estimated and calculated, sizing rolling is carried out by subjecting the material to plate rolling of plan view pattern control only at the opposite end portions thereof with a difference in gap between upper and lower work rolls in the axial direction thereof corresponding to said value, and to an equipment for use in said method.
Claims4
A method for manufacturing a heavy plate having no side crop portions bulging outwardly by rolling a rectangular slab, comprising the steps of:
- rolling said slab in the longitudinal direction thereof;
- rolling said slab in the lateral direction perpendicular to the longitudinal direction of said slab;
- rolling opposite end portions of said slab by upper and lower rolls in said lateral direction of said slab with a gap between said upper and lower rolls being tapered toward axially outer directions of said upper and lower rolls so that said end portions are bevelled, whereby each corner of said end portions projects outwardly;
- and
- forming said heavy plate by rolling said slab having bevelled end portions in said longitudinal direction of said slab.
Dependencies are inferred from the claim text.