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:
Aug. 05, 1986
Filed:
Nov. 07, 1983
Akira Aida, Kitakyushu, JP;
Tetsu Ohno, Nishinomiya, JP;
Takashi Fukuda, Kitakyushu, JP;
Kenji Aihara, Kitakyushu, JP;
Takuo Mizoguchi, Yukuhashi, JP;
Syozi Nishimura, Kitakyushu, JP;
Katsuyoshi Kajiyama, Kitakyushu, JP;
Sumitomo Metal Industries, Ltd., Osaka, JP;
Abstract
A process for manufacturing a high tensile steel wire, characterized by comprising the steps of pre-cooling a hot-rolled steel rod to a temperature between 750.degree.-900.degree. C. by means of a cooling apparatus provided between a group of intermediate rolling mills and a group of finishing rolling mills in a hot rolling line for steel rod, finishing rolling the thus pre-cooled steel rod, quenching the hot rolled steel rod to a temperature of 700.degree. C. or lower to provide a supercooled austenite phase, then finishing-cooling the thus quenched rod to provide martensite, and drawing the resulting steel rod with roller dies without descaling is disclosed.