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:
Apr. 03, 1990
Filed:
Jan. 17, 1989
Yukio Uchida, Amagasaki, JP;
Yasunori Hattori, Izumisano, JP;
Yusuke Hirose, Osaka-Sayama, JP;
Nobuo Hatanaka, Amagasaki, JP;
Nobuhiko Sakai, Amagasaki, JP;
Nisshin Steel Company, Ltd., Tokyo, JP;
Abstract
There is disclosed a process for preparing hot-dip metal coated steel sheets having excellent corrosion resistance comprising electrolytically plating steel sheets containing Si and/or Cr with an Fe-B alloy containing 0.001.about.0.3% by weight of B to the thickness of 0.05.about.5 g/m.sup.2 and thereafter hot-dip-coating the thus pre-plated substrate sheets with a molten bath of Zn, Al or Zn-Al alloy. By this process poorly wettable steel sheets containing silicon and/or chromium can be well coated with zinc, aluminum and zinc-aluminum alloy.