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. 09, 1984
Filed:
Aug. 18, 1982
Applicant:
Inventors:
Yukio Matsuda, Ibaraki, JP;
Tsutomu Ueno, Chiba, JP;
Assignee:
Sumitomo Metal Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ; B21B / ;
U.S. Cl.
CPC ...
72 38 ; 72 39 ;
Abstract
A clean cold strip is produced by injecting at a high pressure a rolling mill lubricant emulsion of a low concentration to both the sides of a strip at the last stand of a rolling mill, thereby removing oil and metal dust therefrom, charging the cold strip as rolled into a box annealing furnace, mixing water steam with an atmospheric gas of the annealing furnace consisting mainly of nitrogen and hydrogen, and adjusting the dew point of the gas within the furnace to 0.degree.-10.degree. C.