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. 09, 1982
Filed:
Sep. 05, 1980
Applicant:
Inventor:
Jiro Tominaga, Hikari, JP;
Assignee:
Nippon Steel Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ;
Abstract
Method for heat treating hot rolled steel wire rod in direct sequence with the final finishing stand of a rod hot rolling mill which comprises a series of steps of subjecting the rod emerging from the rolling mill to a direct controlled cooling in the range of Ms to 550.degree. C. by utilizing the retained heat of the rod, and subsequently reheating it to a temperature as equal as the nose temperature of TTT diagram with a view to achieving the complete transformation to the sorbite structure, whereby a wire rod product having the mechanical properties equal to those of a rod resulting from the lead patenting process can be obtained.