Patent Number: 6,252,211

Title: Method of joining metal pieces

Abstract: A method and apparatus for joining metal pieces wherein the rear end of a preceding metal piece and a front end of a metal piece are heated and then pressed together prior to hot finished rolling. The temperature the ends of the metal pieces are heated to is a temperature range between the solidus and liquidus line temperatures of the metal(s) to be joined.

Inventors: Isoyama; Shigeru (Chiba, JP), Hirabayashi; Takeshi (Chiba, JP), Nikaido; Hideyuki (Chiba, JP), Amagasa; Toshiaki (Chiba, JP), Tamura; Nozomu (Chiba, JP), Yamasaki; Takahiro (Chiba, JP), Osada; Masashi (Chiba, JP), Yamada; Hirosuke (Chiba, JP), Takechi; Toshisada (Chiba, JP), Takashima; Norio (Chiba, JP), Nitta; Junzo (Chiba, JP), Amanuma; Shuji (Chiba, JP), Hayashi; Kanji (Hiroshima, JP), Kuroda; Akio (Hiroshima, JP), Mito; Yoshiki (Hiroshima, JP), Miyamoto; Kunio (Hiroshima, JP), Morimoto; Kazuo (Hiroshima, JP), Wakamoto; Ikuo (Hiroshima, JP), Tsurusaki; Kazuya (Hiroshima, JP), Sakamoto; Hideo (Amagasaki, JP), Hashimoto; Michio (Amagasaki, JP), Nakano; Hiroyuki (Amagasaki, JP), Eguchi; Toshinobu (Amagasaki, JP), Maeda; Fumihiro (Amagasaki, JP)

Assignee: Kawasaki Steel Corporation

International Classification: B21B 15/00 (20060101); B23K 13/02 (20060101); B23K 13/01 (20060101); B23K 13/00 (20060101); B21B 1/26 (20060101); H05B 006/10 (); B21B 045/00 ()

Expiration Date: 06/26/2018