HEAT TREATMENT METHOD OF STRUCTURAL STEELS FOR HIGH-STRENGTH STATE Russian patent published in 2014 - IPC C21D1/78 

Abstract RU 2506320 C1

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy and namely to heat treatment of structural steels. The method involves tempering of structural steel for martensite with further action on it of a pulsing subsonic air flow with certain frequency and sound pressure at room temperature.

EFFECT: reduction of duration of a strengthening heat treatment process of structural steels at maintaining high values of hardness and strength and providing sufficient reliability.

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RU 2 506 320 C1

Authors

Ivanov Denis Anatol'Evich

Zasukhin Otto Nikolaevich

Dates

2014-02-10Published

2012-06-20Filed