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:
May. 06, 1986
Filed:
Nov. 07, 1984
Applicant:
Inventors:
Assignee:
Hoechst Aktiengesellschaft, Dortmund, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427 13 ; 427 34 ; 427 38 ;
Abstract
A process and apparatus for depositing a high-quality metallic coating on a steel strip. In this process, one or several metals or metal alloys are continuously evaporated in a thermal plasma from nonoxidizing gas and transformed into the highly ionized state of the thermal plasma. Subsequently, the metal ions contained in the plasma are electrostatically deposited on the steel strip at a pressure elevated by 100 Pa to 5000 Pa relative to the ambient pressure. During coating, the steel strip is held at a uniform temperature and coated at a rate of 40 m/min to 600 m/min.