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. 18, 1982
Filed:
Sep. 29, 1980
Marvin B Pierson, Franklin, OH (US);
Charles Flinchum, Hamilton, OH (US);
Armco Inc., Middletown, OH (US);
Abstract
A finishing method and apparatus for conventional continuous hot-dip coating of the type wherein a ferrous base metal strip is caused to pass beneath the surface of a coating bath of molten coating metal and is thereafter subjected to jet finishing, the ferrous base metal strip having been appropriately pretreated so as to be at the proper coating temperature and so as to have its surfaces oxide-free when passing through the bath of molten coating metal. The method comprises the steps of providing an enclosure for the two-side coated strip as it exits the coating bath, locating a finishing jet nozzle to either side of the coated strip within the enclosure, jet finishing the coated strip with a non-oxidizing or inert gas. The apparatus comprises the above mentioned enclosure with the jet finishing nozzles located therein and an appropriate system to provide a non-oxidizing or inert atmosphere within the enclosure.