Process for producing oil quench hardening and tempering and har

Details Process for producing oil quench hardening and tempering and har Process for producing oil quench hardening and tempering and har

1988-07-07

1989-10-31

Yee, Deborah

Metal treatment

Compositions

Heat treating

148 12F, C22C 806

Patent

active

048774626

ABSTRACT:
There is provided an oil tempered and hard drawn steel wire for springs which comprises having a phosphate coating on the surface thereof if necessary, high strength, and a shaped cross section free of twist in the longitudinal direction. It is produced by oil tempering, descaling, and phosphate treatment if necessary, and cold working. Having a shaped cross section free of twist in the longitudinal direction, the steel wire can be formed into high quality springs in which the individual cross sections of the wire are arranged regularly in the same direction. The steel wire is particularly suitable for making springs.

REFERENCES:
patent: 2998336 (1961-08-01), Nachtman
patent: 4568394 (1986-02-01), Cassell
ASM, "Phosphate Coating", Metals Handbook, pp. 732-734, 1948 Edition.

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