Partially alloyed galvanize product and method

Details Partially alloyed galvanize product and method Partially alloyed galvanize product and method

1976-05-14

1977-11-22

Kendall, Ralph S.

Coating processes

With pretreatment of the base

Fluxing

427383D, 427349, 427321, 427329, 427433, 427360, 428659, C23C 102

Patent

active

040597113

ABSTRACT:
A partially alloyed galvanized ferrous strand and a method for its production. The method is characterized by the steps of immersing a clean and oxide-free ferrous strand in a molten zinc galvanizing bath to produce on the strand a coating weight of between 0.2 and 0.5 oz. per square foot. After immersion, the zinc-coated ferrous strand is heat treated and cooled to produce a galvanized coating on said ferrous strand, which coating has a duplex structure characterized by an iron-zinc intermetallic layer consisting essentially of the zeta phase, an overlay of free zinc, and an average iron content between about 2 and less than 4% by weight.

REFERENCES:
patent: 1430648 (1922-10-01), Herman
patent: 1675646 (1928-07-01), Fitzgerald
patent: 3323940 (1967-06-01), Sievert
patent: 3619247 (1971-11-01), Newport et al.

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