Metal treatment – Compositions – Heat treating
Patent
1978-02-15
1979-05-08
Kendall, Ralph S.
Metal treatment
Compositions
Heat treating
148 615Z, 148 627, C23F 708
Patent
active
041534786
ABSTRACT:
Steel, aluminum and aluminum alloys, zinc and zinc alloys are treated to improve corrosion resistance with an aqueous solution of a fluorophosphate salt to passivate the metal surface, before or after phosphatizing and prior to painting.
REFERENCES:
patent: 3342687 (1967-09-01), Gould
Cot Louis
Durand Jean-Henri
Granier William
Parant Bernard
Kendall Ralph S.
The Diversey Corporation
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