The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 2005
Filed:
Jun. 18, 2003
Tsutomu Kawamizu, Hiroshima, JP;
Ritsuo Hashimoto, Hiroshima, JP;
Etsurou Hirai, Hiroshima, JP;
Shoichi Hashimoto, Hiroshima, JP;
Kanji Hayashi, Hiroshima, JP;
Tsutomu Kawamizu, Hiroshima, JP;
Ritsuo Hashimoto, Hiroshima, JP;
Etsurou Hirai, Hiroshima, JP;
Shoichi Hashimoto, Hiroshima, JP;
Kanji Hayashi, Hiroshima, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Mitsubishi-Hitachi Metals Machinery, Inc., Tokyo, JP;
Abstract
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° C. and at a percentage clearance c/t equal to or lower than 5%, c/t being defined by c/t=D/(t+t)×100 where D represents a distance between the punch and the die, and tand trepresent a thickness of respective steel plates.