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Title:
ZINC-ALUMINUM BASE ALLOY PLATED STEEL SHEET EXCELLENT IN WORKABILITY AND GALLING RESISTANCE
Document Type and Number:
Japanese Patent JPH10140313
Kind Code:
A
Abstract:

To produce a Zn-Al base alloy plated steel sheet excellent in drawability, bulging workability and galling resistance.

This Zn-Al base alloy plated steel sheet is formed of a Zn-Al base hot dip plating layer in which grain size is regulated to ≤1mm, surface roughness Ra is regulated to 0.1 to 1μm and hardness is regulated to ≥100. As for the crystal grains of the plating layer, the grain size is regulated to ≤1mm by rapid cooling immediately after plating. For the rapid cooling, the method of atomizing water, a mixture of water and air, an aq. soln. of chloride or the like, or a cold air spraying method can be adopted.


Inventors:
Ishikawa, Hanji
Takahashi, Suetsugu
Ozawa, Hironori
Nakada, Yasushi
Application Number:
JP1996000300125
Publication Date:
May 26, 1998
Filing Date:
November 12, 1996
Export Citation:
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Assignee:
NISSHIN STEEL CO LTD
International Classes:
C23C2/06; C23C2/12; C23C2/26; C23C2/40; (IPC1-7): C23C2/06; C23C2/12; C23C2/26; C23C2/40
Attorney, Agent or Firm:
小倉 亘