Aqueous quenchants containing polyoxazolines and n-vinyl heteroc

Details Aqueous quenchants containing polyoxazolines and n-vinyl heteroc Aqueous quenchants containing polyoxazolines and n-vinyl heteroc

1984-10-12

1985-07-09

O'Keefe, Veronica

Metal treatment

Compositions

Heat treating

148 206, 148 28, 528402, 524602, C21D 156

Patent

active

045280444

ABSTRACT:
A process for quenching metals, particularly steel, using as the quenching bath an aqueous composition containing (a) a substituted oxazoline polymer and (b) an N-vinyl heterocyclic polymer or copolymer in which the heterocyclic group is composed of carbon, nitrogen and hydrogen. The quenching bath provides reduced cooling rates through the martensite temperature ranges.

REFERENCES:
patent: 3220893 (1965-11-01), Blackwood et al.
patent: 3483141 (1969-12-01), Litt et al.
patent: 3533971 (1970-10-01), Austin et al.
patent: 3902929 (1975-02-01), Meszaros
patent: 4087290 (1978-05-01), Kopietz et al.
patent: 4381205 (1983-04-01), Warchol
Frump, Oxazolines, Their Prep., Reactions and Applications, Chem. Rev., vol. 71, No. 5, pp. 483-505, 1971.

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