Reduction of loss of zinc by vaporization when heating...

Details Reduction of loss of zinc by vaporization when heating... Reduction of loss of zinc by vaporization when heating...

B - Operations, Transporting

32

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117/231

B32B 15/01 (2006.01) C23C 2/06 (2006.01) C23C 2/12 (2006.01)

Patent

CA 1156523

TITLE: REDUCTION OF LOSS OF ZINC BY VAPORIZATION WHEN HEATING ZINC-ALUMINUM COATINGS ON FERROUS METAL BASE ABSTRACT OF THE DISCLOSURE The loss of zinc by vaporization when heating a zinc-aluminum coating to a temperature between about 427°C and 816°C (800°F and l500-F) is significantly reduced by applying the zinc-aluminum coating containing about 30 to 75 weight percent zinc and the balance essentially aluminum to a mild carbon steel base which contains titanium in an amount sufficient to combine with all of the carbon in the steel and provide a small excess of uncombined titanium in the steel base, thereby providing a zinc-aluminum coated steel article which has improved corrosion and oxidation resistance when heated at temperatures between about 427°C and 816°C (800°F and 1500°F).

375589

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