Aqueous quenching medium containing salts of polymeric materials

Details Aqueous quenching medium containing salts of polymeric materials Aqueous quenching medium containing salts of polymeric materials

1973-10-02

1976-02-17

Lovering, Richard D.

Metal treatment

Compositions

Heat treating

252 67, 148 18, 148 27, B23K 3524

Patent

active

039390160

ABSTRACT:
A novel quenching medium for steel is provided. The quenching medium is a 0.5-10 wt. % aqueous solution of polyacrylic acid, polymethacrylic acid, a copolymer of acrylic acid and methacrylic acid, or a salt thereof. Intrinsic viscosity [.eta.] of the polymer is from 0.010 to 0.050 l/g. The quenching medium is superior in various quenching characteristics to conventional quenching media.

REFERENCES:
patent: 2244703 (1941-06-01), Hubbuch
patent: 2326078 (1943-08-01), Trommsdorff et al.
patent: 2600290 (1952-06-01), Corneil
patent: 3493500 (1970-02-01), Volk et al.

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