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本发明是制造晶粒取向硅钢的一种改进方法。虽然美国专利申请号577571,在1975年5月15日已提出的现在公布的美国专利№.4000015提出一种生产单取向电磁硅钢最有效的新工艺,可是已注意到该工艺的不足。通过在最终常化脱炭期间利用露点-6.7℃～15.6℃含氢气氛这一工艺,从而发展成一种对形成某些底层不敏感的最终常化钢。本发明亦提供一种克服专利申请号577571中缺点的工艺。
The present invention is an improved method of manufacturing grain-oriented silicon steel. Although U.S. Patent Application No. 5,775,771, U.S. Patent No. 4,000,015, now published on May 15, 1975, which was filed on May 15, 1975, proposes a new and most efficient new process for the production of mono-oriented electromagnetic silicon steel, attention has been devoted to this process. By using a hydrogen-containing atmosphere with a dew point of -6.7 ° C to 15.6 ° C during the final normal decarburization, a final, normalized steel that is insensitive to the formation of certain substrates is developed. The present invention also provides a process that overcomes the disadvantages of Patent Application No. 577571.