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:
Feb. 27, 1996
Filed:
Sep. 09, 1993
Shin-ichiro Yamakawa, Aichi, JP;
Takeshi Hanada, Aichi, JP;
Toshiyuki Tsuge, Aichi, JP;
Kenichi Takakura, Aichi, JP;
Masahiro Takeda, Aichi, JP;
Kenzo Yamaguchi, Aichi, JP;
Takemi Suzuki, Aichi, JP;
Aichi Steel Works, Ltd., Aichi, JP;
Abstract
A process for hot working a continuous-cast bloom or a steel ingot, the process comprising the steps of: (1) cooling a bloom produced by continuous casting or a steel ingot produced with a mold to bring the surface temperature thereof to 50.degree. to 150.degree. C. higher than the Ar.sub.3 transformation point thereof; (2) quenching the bloom or the steel ingot in such a way that its interior remains red hot while the surface is transformed to have a bainite structure; and (3) heating the bloom or the steel ingot in a furnace followed by hot shaping.