METHOD OF PRODUCTION OF BIMETALLIC INGOTS Russian patent published in 2008 - IPC C22B9/20 B22D7/02

Abstract RU 2337158 C2

FIELD: metallurgy.

SUBSTANCE: method suggests to re-melt consumable electrodes out of metal of interior layer into shell out of metal of exterior layer; at that immediately prior to melt shell is subject to non-oxidation heating to temperature of 0.3-0.8 of metal solidus of exterior layer, at that height of a heated lower portion of shell is equal to 1-6 of thickness of shell wall.

EFFECT: invention ensures reliable welding of layers; dense macrostructure and reduction of bottom trimming.

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RU 2 337 158 C2

Authors

Demidov Vladimir Aleksandrovich

Pavlova Natal'Ja Petrovna

Dates

2008-10-27—Published

2006-11-24—Filed