C - Chemistry – Metallurgy – 25 – D
Patent
C - Chemistry, Metallurgy
25
D
C25D 11/38 (2006.01) C25D 5/12 (2006.01)
Patent
CA 2058149
ABSTRACT: An electrolytically chromated steel sheet which has an outstandingly good high-speed weldability without grinding and presents a lacquered or printed surface having an excellent finish, and which is particularly suitable for use in making a welded can. It carries on one surface thereof a film including a metallic chromium layer having a high proportion of granular metallic chromium having a large particle diameter, while on the other surface thereof, it carries a film including a metallic chromium layer in sheet form, i.e. not containing any granular chromium, or a film including a metallic chromium layer containing only a very low proportion of granular metallic chromium having a large particle dia- meter. The weight per unit area of the film on each surface, the proportion of granular metallic chromium having a large particle diameter in each film, and the critical particle diameter of such granular chromium are specifically limited from the standpoint of e.g. weldability.
Awaya Takashi
Furuya Hirohide
Iwasa Hiroki
Kashiyama Yoshitaka
Watanabe Toyofumi
Awaya Takashi
Furuya Hirohide
Iwasa Hiroki
Kashiyama Yoshitaka
Nkk Corporation
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