Process and installation for continuous manufacturing of an old

Details Process and installation for continuous manufacturing of an old Process and installation for continuous manufacturing of an old

1984-05-23

1985-07-23

Silverberg, Sam

Coating processes

With pretreatment of the base

Heating or drying pretreatment

427321, 427433, 4273981, 148 12D, 148 123, B05D 300

Patent

active

045308586

ABSTRACT:
The present invention relates to a continuous coating process by a layer of Zn, Al or of a Zn-Al alloy for a cold laminated steel band comprising a heating thermic cycle, followed by a rapid cooling, a tempered coating in the metal bath of coating in fusion, at a temperature from 460.degree. to 500.degree. C., and a subsequent cooling, characterized in that after the tempered coating, the coated steel band is subjected to an over-aging treatment by maintaining the band at a temperature comprised between 430.degree. and 270.degree. C. during at least two minutes.
This process is carried out in an installation comprising an over-aging chamber.

REFERENCES:
patent: 3971862 (1976-07-01), Fukuoka
patent: 4287008 (1981-09-01), Torok
patent: 4287009 (1981-09-01), Allegra
patent: 4294632 (1981-10-01), Kubota
EP-0026757, 4/1981.

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