Patent · US Expired

Method and apparatus for coating metal strip, particularly cold-rolled steel strip

US6800327B2 · kind B2 · utility

0Cited by

1References

8Claims

0Family size

Assignee

SMS DEMAG LLC · DE

Inventors

Werner Bechem · Hilchenbach, DE
Holger Behrens · Reutlingen, DE
Rolf Brisberger · Issum, DE

Key dates

Filing date	May 16, 2002
Grant date	Oct 5, 2004
Priority date	—
Expiry date	May 16, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC23C2/0224
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A method and an apparatus for coating metal strip, particularly cold-rolled steel strip, with a coating metal which is in the molten state. The metal strip is heated and annealed in a heating furnace and subsequently the required strip temperature and surface properties are adjusted in a cooling zone. The strip is conducted through a coating container and, following the coating container in strip pulling direction, the coating metal thickness and the solidification process are controlled by a gas-operated stripping device. The operating gas for the stripping device is preheated in a partial area of the cooling zone of the heating furnace.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.