Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

Sumitomo Metal Industries, Inc.

Mitsubishi-hitachi Metals Machinery, Inc.

Shoichi Hashimoto

Kanji Hayashi

Atsushi Tomizawa

Hideo Yamamoto

Hideaki Furumoto

Nobutaka Maeda

Tsutomu Kawamizu

Takeshi Masui

Ritsuo Hashimoto

Shunji Omori

Kazuhiko Horie

Tsuneo Nakano

Yukio Hiasa

Etsurou Hirai

Kiyotaka Hori

Shunji Kamata

Toru Kaneko

Yutaka Matsuda

Ryuji Hamada

Hiroki Yoshiya

A steel plate splicing facility includes, a steel plate heating apparatus for retrieving and heating a preceding steel plate and a following steel plate, and a shear-joining apparatus for clamping a tail end portion of the preceding steel plate and a leading end portion of the following steel plate in an overlapping condition by a die and a clamp and shearing them with a punch, such that surfaces of the tail end portion and the leading end portion are newly formed and brought in contact with each other in order to them. The shear-joining apparatus joins the preceding and following steel plates at a temperature equal to or higher than 350&#xb0; C. and at a percentage clearance c/t equal to or lower than 5%, c/t being defined by c/t=D/(t+t)&#xd7;100 where D represents a distance between the punch and the die, and tand trepresent a thickness of respective steel plates.

Steel plate splicing facility utilizing shear joining

Cold rolling method for a metal strip and a mill array

A drum type shear includes a pair of rotatable drums, each drum including a shearing blade. The circumferential velocity of the outer edge of a first blade is greater than the circumferential velocity of the outer edge of a second blade, such that upon rotation of the drums with a workpiece passing therebetween, after the workpiece has been initially bitten between the blades, shearing of the workpiece is completed while the outer edge of the first blade overtakes the outer edge of the second blade.

Drum shear

Growing community of inventors

Hiroshima, Japan

Shoichi Hashimoto