Process for quench hardening with polyacrylate quenching medium

Details Process for quench hardening with polyacrylate quenching medium Process for quench hardening with polyacrylate quenching medium

1975-06-04

1976-12-07

Satterfield, Walter R.

Metal treatment

Compositions

Heat treating

148 27, 148 28, 252 67, 252 72, C21D 148, B23K 3524

Patent

active

039960765

ABSTRACT:
A process for quench hardening metal is provided. The process comprises heating the metal to a quench hardening temperature and thereafter immersing the metal in a quenching medium which is an aqueous solution containing 0.4 to 10% by weight of polyacrylic acid, polymethacrylic acid, a copolymer of acrylic acid and methacrylic acid, or a salt thereof. The process provides a perfect and uniformly hardened quenched structure and allows the production of a quenched structure having a desired degree of hardness.

REFERENCES:
patent: 2600290 (1952-06-01), Corneil
patent: 2770564 (1956-11-01), Gordon
patent: 3022205 (1962-02-01), Chase et al.
patent: 3939016 (1976-02-01), Tokuue et al.

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