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:
Sep. 25, 1984
Filed:
Feb. 04, 1983
Shigeaki Maruhashi, Tokuyama, JP;
Takayoshi Kanamaru, Tokuyama, JP;
Hiroto Matsumoto, Tokuyama, JP;
Kousuke Sawashige, Houfu, JP;
Nisshin Steel Co., Ltd., Tokyo, JP;
Abstract
A process for annealing steel strip comprising dipping the strip in a molten glass bath maintained 950.degree. C. or higher to anneal it, taking the strip out of the bath to form coagulated glass coatings on the surfaces of the strip and cooling the strip to destroy and peel off the coatings. The bath comprises 38.0 to 62.0% of B.sub.2 O.sub.3, 18.0 to 32.0% of SiO.sub.2, 18.0 to 32.0% of Na.sub.2 O partly replaceable with K.sub.2 O, up to 10.0% of CaO partly replaceable with MgO, BaO, ZnO and/or SrO, up to 6.0% of Li.sub.2 O, up to 10.0% of Al.sub.2 O.sub.3 and 0.5 to 4.0% of NaF, and has a viscosity not exceeding 200 poises as measured at 950.degree. C. The strip is preferably not exposed to air while above 400.degree. C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile