Device for hot-dip coating a metal bar

Details Device for hot-dip coating a metal bar Device for hot-dip coating a metal bar

2003-10-25

2009-10-13

Lamb, Brenda A (Department: 1792)

Coating apparatus

Immersion or work-confined pool type

Work extending through pool-confining wall area

C118S419000

Reexamination Certificate

active

07601221

ABSTRACT:
The invention relates to a device for hot-dip coating a metal bar (1), particularly a steel strip, in which the metal bar (1) is vertically directed through a container (3) receiving the molten coating metal (2) and a directing channel (4) that is arranged upstream thereof. Said device comprises at least two inductors (5) which are disposed on both sides of the metal bar (1) in the zone of the directing channel (4) and generate an electromagnetic field for retaining the coating metal (2) within the container (3). In order to better control the coating process, the inventive device is characterized by a sealing means (7, 7′) which is arranged above the directing channel (4) in the bottom area (6) of the container (3) and alternatively releases or interrupts the flow of molten coating metal (2) to the metal bar (1) and/or the directing channel (4).

REFERENCES:
patent: 3470939 (1969-10-01), Coad
patent: 3521696 (1970-07-01), Lowman et al.
patent: 3568753 (1971-03-01), Clarke
patent: 3605862 (1971-09-01), Schultz et al
patent: 3666537 (1972-05-01), Williams
patent: 4479530 (1984-10-01), Ekerot
patent: 6106620 (2000-08-01), Morrison et al.
patent: 0 855 450 (1998-07-01), None
patent: 2 804 443 (2001-08-01), None

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