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:
Jun. 30, 1987
Filed:
Feb. 28, 1986
Applicant:
Inventors:
Susumu Satoh, Chiba, JP;
Saiji Matsuoka, Chiba, JP;
Takashi Obara, Chiba, JP;
Kozo Tsunoyama, Chiba, JP;
Toshio Irie, Chiba, JP;
Assignee:
Kawasaki Steel Corporation, Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
C21D / ; C21D / ; B21B / ;
U.S. Cl.
CPC ...
148 / ; 72202 ; 72364 ; 72365 ;
Abstract
A process for producing a formable thin steel sheet excellent in ridging resistance. Said process comprises finishing a low carbon steel at a strain rate of not less than 300 (s.sup.-1) in a temperature range of 800.degree. to 300.degree. C. in at least one pass when the low carbon steel is rolled into a specified thickness, and subsequently performing recrystallization annealing.