B - Operations – Transporting – 21 – B
Patent
B - Operations, Transporting
21
B
B21B 15/00 (2006.01) B23K 13/01 (2006.01) B21B 1/26 (2006.01)
Patent
CA 2076169
A method of continuously hot-rolling sheet bars in which a roughly rolled leading sheet bar and a trailing sheet bar are abutted prior to a hot finish rolling step. Plastic deformation of either or both of the cut rear and front end portions of the leading and trailing sheet bars is applied. End portions are brought into contact with each other due to metal flow, forming a gap portion between the sheet bars. The thickness of the sheet bar around the gap portion is enlarged in comparison to the thickness of the contact portions, and hot finish rolling fills the gap so that the bars are strongly joined over their width.
Aoki Fujio
Isobe Kunio
Kitahama Masanori
Takashima Norio
Takechi Toshisada
Kawasaki Steel Corporation
Smart & Biggar
LandOfFree
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