Continuous hot-dip coating method and apparatus therefor

Details Continuous hot-dip coating method and apparatus therefor Continuous hot-dip coating method and apparatus therefor

1998-02-23

2000-07-25

King, Roy V.

Coating processes

Immersion or partial immersion

Molten metal or fused salt bath

427319, 427320, 427321, 427431, 427436, B05D 118, B05D 302

Patent

active

060934522

ABSTRACT:
A method for hot-dip coating a steel strip comprises: (a) continuously annealing the steel strip in an annealing furnace; (b) introducing the annealed steel strip into a molten metal coating bath through a snout; (c) dipping the annealed steel strip into the molten metal coating bath; (d) controlling a pressure inside of the snout; and (e) discharging a gas containing a metal vapor from the snout to outside of the snout. An apparatus comprises an annealing furnace, a coating pot, a control device for controlling a pressure inside the snout and a gas discharging device.

REFERENCES:
patent: 4107357 (1978-08-01), Asakawa et al.
patent: 4439212 (1984-03-01), Wang
patent: 4466999 (1984-08-01), Leonard
patent: 4478892 (1984-10-01), Amberson
patent: 5339329 (1994-08-01), Flinchum et al.

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