Method of continuous galvanizing steel strip on partial or one side
AssigneeNippon Steel Corporation
InventorsKatsuyoshi Yoshida, Yukio Kitajima
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Abstract
A method of continuous galvanizing a steel strip partially or one side, which comprises applying silicone resin to a part or on one side of the steel strip which is to be left non-plated in a subsequent continuous molten zinc coating, baking the silicon resin coated steel strip at a temperature ranging from 300 to 800.degree. C in an oxidizing atmosphere, and subjecting the steel strip to heat treatment in a reducing atmosphere and introducing the heat treated steel strip to a zinc coating bath.
Claims9
A method of continuous galvanizing a steel strip partially or one side, which comprises applying a silicone resin selected from the group consisting of polysilalkylenes and polysiloxanes to a part or on one side of the steel strip which is to be left non-plated in a subsequent continuous molten zinc coating, baking the silicone resin coated steel strip at a temperature ranging from 300.degree. to 800.degree. C for 2 to 30 seconds in an oxidizing atmosphere to deposit a masking film, and subjecting the steel strip to heat treatment in a reducing atmosphere and introducing the heat treated steel strip to a zinc coating bath.
Dependencies are inferred from the claim text.