PREPARATION OF STEEL STRUCTURE FOR FURTHER THERMAL TREATMENT Russian patent published in 2014 - IPC C21D1/25 C21D9/22 C21D1/04 C21D1/78

Abstract RU 2526341 C1

FIELD: metallurgy.

SUBSTANCE: pretreatment is performed by article heating to over the steel critical point, article is cured and air cooled. Note here that at cooling impact-pulse oscillations are applied to the article at impact application frequency of 30-10000 Hz for quenching to be made.

EFFECT: higher hardness and increased hardenability depth.

2 cl, 2 ex

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RU 2 526 341 C1

Authors

Mel'Nikov Aleksandr Grigor'Evich

Jakupov Il'Giz Fajazovich

Dates

2014-08-20—Published

2013-02-20—Filed