FIELD: metallurgy.
SUBSTANCE: linear grooves are made on electric steel sheet surface. Note here that quantitative ratio of liner grooves with crystalline grains located directly there under with each crystalline grain having orientation deflected from Goss orientation through 10 degrees or more and grain size making 5 mcm or more is adjusted to make 20% or less. Besides, grains recrystallised for the second time are adjusted to have mean angle β of 2.0° or less. Every said grain recrystallised for the second time has grain size of 10 mm or more is adjusted to have deflection of said angle β from 1° to 4°.
EFFECT: fine magnetic domain structure and lower magnetic losses.
2 cl, 3 dwg, 2 tbl, 1 ex
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Authors
Dates
2014-03-10—Published
2011-09-09—Filed