Process for producing grain-oriented electromagnetic steel sheet

作者: Yukihiro Shingaki , Kunihiro Senda , Takeshi Omura , Makoto Watanabe

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摘要: A grain-oriented electromagnetic steel sheet is provided which has a low ratio of iron loss in weaker magnetic field to that stronger and special advantage EI cores the like. Also process for producing sheet. The characterized its crystal grains important components are specified terms their proportions number, contents Al, Ti B, with forsterite film formed on surface In low-Al silicon slab heated at below 1,250° C. before hot rolling hot-rolled annealed temperature rise range from 5 25° C./sec about 800 1,000 period time shorter than 100 seconds.

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