Metal deforming – With 'coating' of work – Metal coating
Patent
1986-09-11
1988-10-04
Larson, Lowell A.
Metal deforming
With 'coating' of work
Metal coating
72268, B21C 2324
Patent
active
047748257
ABSTRACT:
This invention relates to a method for cladding a wire-shaped steel element (1) with an aluminium coating layer (3) by passing the steel wire (1) through an extrusion orifice (8), whereby plastified aluminium is fed through a closed feed channel (7) preceding the orifice (8) and is applied under pressure on the wire-shaped steel element (1) in the orifice (8) for forming the coating (3). According to the invention, the steel wire (1) is provided with a corrosion-resistant layer (2) with a thickness of 1 to 25 micron, which layer (2) has a lower melting temperature than the melting temperature of the aluminium to be applied and whereby during the coating process the temperature of the protective layer (2) which comes in contact with the aluminium remains lower than the melting temperature of the layer (2).
This invention also relates to coated steel wires according to the invention.
REFERENCES:
patent: 2320801 (1943-06-01), Simons
patent: 3137389 (1964-06-01), De Buigne
patent: 3306088 (1967-02-01), Adler
patent: 3438754 (1969-04-01), Shepard et al.
patent: 3616301 (1971-10-01), Miyata et al.
patent: 3652321 (1972-03-01), Hood
patent: 3993238 (1976-11-01), Brook et al.
patent: 4257549 (1981-03-01), Bricmont
Kemon Solon B.
Larson Lowell A.
N.V. Bekaert S.A.
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