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US 5,472,793 AGranted
Composite spray coating having improved resistance to hot-dip galvanization
AssigneeTocalo Co., Ltd.
InventorsYoshio Harada, Kazumi Tani, Yoshihumi Kobayashi
Life of this patent
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Abstract
A composite spray coating comprises an iron base material, a spray coating film applied thereon and a diffusion layer of aluminum or aluminum-zinc alloy, and is used for hot-dip galvanization.
Claims16
A method of producing a composite spray coating having improved resistance to hot-dip galvanization, comprising:
- spraying a non-oxide ceramic or a cermet of ceramic and metal onto a material forming a layer having a surface;
- and
- diffusing aluminum or aluminum alloy into the surface of the layer.
Dependencies are inferred from the claim text.