Method of producing aluminum or aluminum alloy coated steel sheets with aid of powder method

Abstract

A method of producing an aluminum or aluminum alloy coated steel sheet with the aid of powder method is disclosed. The method comprises preliminarily applying a zinc coating having a thickness of 0.01 to 0.3 .mu.m, preferably 0.03 to 0.3 .mu.m to a steel sheet surface, applying an aluminum powder to the zinc coated steel sheet and subjecting the coated steel sheet to steps of heating, rolling and heating again or steps of rolling, heating, rolling again and heating again.

Dependencies are inferred from the claim text.