Method of heat treating steel wire

Details Method of heat treating steel wire Method of heat treating steel wire

1983-01-17

1985-04-30

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148 12B, C21D 952

Patent

active

045142378

ABSTRACT:
Cold drawn carbon steel wire, more particularly stranded galvanized wire for use in overhead power transmission lines, is heat treated in the untensioned state for a period of at least one hour at a temperature in the range 150.degree. C.-200.degree. C. The preferred temperature is about 175.degree. C. The treated wire has a reduced susceptibility to permanent elongation under tensile stress. ACSR conductors incorporating such wire as the steel reinforcement have a greatly reduced sag under heavy ice loading.

REFERENCES:
patent: 2394434 (1946-02-01), Elmendorf
patent: 2511274 (1950-06-01), Kramer
patent: 2853768 (1958-09-01), Boucek
patent: 3057050 (1962-10-01), Hodge et al.
patent: 3240570 (1966-03-01), Grimes, Jr. et al.
patent: 3647571 (1972-03-01), Okamoto et al.
patent: 3658600 (1972-04-01), Pryor et al.

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