B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/4, 117/73
B05C 3/12 (2006.01) B05D 7/20 (2006.01) C23C 2/18 (2006.01) C23C 2/24 (2006.01)
Patent
CA 1133331
ABSTRACT OF THE DISCLOSURE A method and apparatus for controlling the coating of wires, strips or the like, including wire expanded metal mesh, emerging from molten metal baths, involving subjecting the wire to an alternating electromagnetic field generated by a single phase alternating electric current supplied to an electromagnetic device which is at least partially immersed in the bath. The field is applied at or below the point of emergence such that the point of emergence is always within the electromagnetic field to thereby control the coating weight per unit area. The frequency and/or current for generating the field may be adjustable, and the field generated be either parallel or transverse to the wire, strip or the like. The wire, strip or the like may pass through or adjacent, the electromagnetic device. A neutral or reducing atmosphere may be provided within a chamber situated at the point of emergence and the point of emergence covered with particles inert to the environment. Alternatively the emergence area, may be covered by a confined or unconfined bed of oil charcoal. A similar amount of gas or vapour which will decompose to produce a sulphide ( - S) radical may be supplied to the protective atmosphere either directly or in addition to the neutral or reducing gas.
316650
Sander Anthony J.
Sciffer Jack P.
Whitton Richard W.
Australian Wire Industries Proprietary Limited
Sherman
LandOfFree
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