Process for making wire mesh screens

Details Process for making wire mesh screens Process for making wire mesh screens

1991-03-28

1993-04-27

Evans, Geoffrey S.

Metal treatment

Process of modifying or maintaining internal physical...

Producing or treating layered, bonded, welded, or...

219 56, 219 58, 148507, B23K 1132

Patent

active

052058778

ABSTRACT:
Making wire screens using high carbon steel wire. A first array of wires are placed in a longitudinal configuration and a second array of wires are placed transversely of said first array. The junctions where the wires meet are heated to a temperature of from about 700.degree. F. to about 1000.degree. F. for a time sufficient to disperse heat to adjacent wire areas but insufficient to cause wire fusion. A current is then applied to these junctions sufficient to cause fusion or welding of the junctions. Subsequently, a post weld heat of at least 1575.degree. F. is applied to the wires sufficient to form pearlite in substantial amounts.

REFERENCES:
patent: 3573418 (1971-04-01), Amakasu et al.
patent: 4032368 (1977-06-01), Grange
patent: 4375995 (1983-03-01), Sugino et al.
patent: 4686342 (1987-08-01), Collier et al.
patent: 4895605 (1990-01-01), Ackert et al.

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