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. 02, 1986
Filed:
Feb. 25, 1985
Morinori Kamio, Samukawa, JP;
Masahiro Tsuji, Samukawa, JP;
Susumu Kawauchi, Samukawa, JP;
Jun Ono, Samukawa, JP;
Hideki Isayama, Samukawa, JP;
Akihiko Nishimoto, Fukuyama, JP;
Yoshiharu Miyawaki, Fukuyama, JP;
Osamu Nozoe, Fukuyama, JP;
Koji Iwase, Fukuyama, JP;
Nippon Mining Co., Ltd, Tokyo, JP;
Nippon Kokan Kabushiki Kaisha, Tokyo, JP;
Abstract
An Al-killed cold-rolled steel sheet with excellent demagnetization characteristics is provided which is substantially consisted of 0.005% or less C; from 0.05 to 0.50% Mn; 0.010% or less S; from 0.01 to 0.08% Sol.Al; 0.0050% or less N; wherein Mn %/S %.gtoreq.7 and (Sol.Al % - 0.003%)/N %.gtoreq.6; and the remainder iron and inevitable impurities. A shadow mask made of such Al-killed cold-rolled steel sheet and a color television receiver using the same exhibit a very excellent function. A preferred process for producing such an Al-killed cold-rolled steel is also provided, said process being characterized in first obtaining a steel or a specific composition by the use of a vacuum degassing apparatus and then subjecting the steel to sequential steps of hot rolling, cold rolling, decarburization-annealing, and cold rolling.