Process for heat treating a carbon steel wire

Details Process for heat treating a carbon steel wire Process for heat treating a carbon steel wire

1987-11-18

1989-05-16

Brody, Christopher W.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148154, 148156, C21D 140

Patent

active

048306843

ABSTRACT:
A process for heat treating a carbon steel wire to obtain a fine pearlite structure is characterized by the following steps: (a) cooling the wire until the wire reaches a given temperature which is below the AC.sub.1 transformation temperature; (b) regulating the temperature of the wire to not more than 10.degree. C. above or below said given temperature by passing an electric current through the wire and effecting a modulated ventilation thereof; (c) cooling the wire.

REFERENCES:
patent: 3547421 (1970-12-01), Hoffman et al.
patent: 3645805 (1972-02-01), Hoffmann et al.
patent: 3830478 (1974-08-01), Pletroni
patent: 4043170 (1977-08-01), Erodi et al.
patent: 4249720 (1981-02-01), Weyand et al.
Patent Abstracts of Japan, vol. 5, No. 54, (C-50) [726], Apr. 15, 1981, JP-A-56 5931, (Sumitomo Kinzoku Kogyo K.K.).

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