Coating processes – Nonuniform coating – Mask or stencil utilized
Patent
1979-09-12
1981-04-28
Kendall, Ralph S.
Coating processes
Nonuniform coating
Mask or stencil utilized
427329, 427438, 427300, C23C 102
Patent
active
042646529
ABSTRACT:
Method for locally galvanizing a ferrous metal article, preferably a strip or a sheet.
The article is coated on the surface to be protected from the galvanization by an aqueous suspension of cement and is thereafter dried, heated to a temperature above the melting point of the zinc and moved through a bath of molten zinc. It undergoes finally a cleaning step to remove the masking cement material and possibly a final rinsing.
Articles thus obtained may be one side galvanized steel strips to be used in the automobile industry.
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patent: 2894850 (1959-07-01), Greene et al.
patent: 3089780 (1963-05-01), Siple
patent: 3121019 (1964-02-01), Blay
patent: 3149987 (1964-09-01), Crandall
patent: 3181963 (1965-05-01), Cook et al.
patent: 3398010 (1968-08-01), Harvey et al.
patent: 3751275 (1973-08-01), Oken
patent: 4125647 (1978-11-01), Goto
patent: 4177303 (1979-12-01), Clipson
Danese Desire
Pantusa Eugene
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