Method and apparatus to galvanize a ferrous substrate

Details Method and apparatus to galvanize a ferrous substrate Method and apparatus to galvanize a ferrous substrate

1993-06-11

1995-01-24

Bell, Janyce

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

427185, 427192, 4273765, 4273768, 427377, 427379, 4273984, B05D 104

Patent

active

053841654

ABSTRACT:
A ferrous strip is galvanized by establishing an electrostatic potential on the strip which is then submerged on a fluidized bed of powdered galvanizing material and then allowing the adhered galvanized powder to be carried by the strip to a reflow station. The reflow station heats the strip and galvanizing material to liquidity the galvanizing material and establish the necessary alloy interface on the ferrous strip. Thereafter, the strip passes to a cooling zone wherein the reflowed galvanizing material is solidified before contacting a roller to use to direct the strip to the exit of the galvanizing apparatus. The atmosphere within the galvanizing apparatus is remained inert through the use of nitrogen which is also used as the fluid medium for the suspension of the galvanizing powder in the fluidized bed.

REFERENCES:
patent: 3197346 (1965-07-01), Munday
patent: 4505946 (1985-03-01), Suzuki et al.

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