PRODUCTION OF TEXTURE SHEETS FROM ELECTRICAL STEEL Russian patent published in 2015 - IPC C21D8/12 C21D9/46 

Abstract RU 2537628 C1

FIELD: process engineering.

SUBSTANCE: invention relates to metallurgy. Proposed process comprises production of slab to be rolled to sheet and continuous decarburising annealing. The latter includes heating of steel sheet at the rate of 50°C/s to 700°C-750°C or higher. Note here that at least at 500°C-700°C heating is performed in atmosphere with oxidative potential P(H2O)/P(H2)=0.05 or lower. Cooling is performed to below 700°C in atmosphere with oxidative potential P(H2O)/P(H2)=0.05 or lower. Reheating of steel sheet from 800°C to 900°C and holding thereat are carried out in atmosphere with oxidative potential P(H2O)/P(H2)=0.3 or higher.

EFFECT: lower losses of steel.

5 cl, 6 dwg, 3 tbl

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RU 2 537 628 C1

Authors

Omura,Takesi

Kidzima,Gou

Vatanabeh,Makoto

Dates

2015-01-10Published

2011-11-25Filed