Manufacturing method of extra fine wire

Details Manufacturing method of extra fine wire Manufacturing method of extra fine wire

1988-12-28

1990-02-20

Crane, Daniel C.

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

72 42, 72280, 72286, B21C 900

Patent

active

049015508

ABSTRACT:
In a method of manufacturing an extra fine wire, a blank wire cooled to a low temperature is caused to pass through a high humidity atmosphere and, immediately thereafter, is drawn to a diameter such that wire breakage due to the drawing does not occur. Alternatively, a blank wire is caused to pass through a die assembly so arranged as to be immersed in refrigerant, and is drawn within the refrigerant of low temperature, to a diameter with which wire breakage due to the drawing does not occur. The drawn wire material is heated rapidly and is annealed and, thereafter, is cooled rapidly to form an intermediate blank wire. Subsequently, the intermediate wire is drawn at the ordinary temperature.

REFERENCES:
patent: 1008808 (1911-11-01), Farkas
patent: 2165056 (1939-07-01), Kalischer
patent: 2203064 (1940-06-01), Schueler
patent: 2974778 (1961-03-01), Ellis et al.
patent: 3826690 (1974-07-01), Bleinberger

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