METHOD OF STEEL CASTINGS PROTECTION AGAINST DECARBURISATION DURING HEAT TREATMENT Russian patent published in 2015 - IPC C21D1/70 

Abstract RU 2541253 C1

FIELD: metallurgy.

SUBSTANCE: castings are loaded in the container and backfilled with carburising compound, as the carburising compound a mixture of charcoal and spent paraffin-stearinic composition is used in ratio (2.3-2.5):1, and quantity of the carburising compound is 20-25% of charge volume.

EFFECT: improvement of quality protection of the steel castings against decarburisation, in particular minimisation of thickness of decarburised layer.

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RU 2 541 253 C1

Authors

Leushin Igor' Olegovich

Leushina Ljubov' Igorevna

Nishchenkov Aleksandr Vladimirovich

Dates

2015-02-10Published

2013-10-22Filed