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本专利介绍一种在10奥斯特时,导磁率至少1850(G/Oe)单取向电磁硅钢的生产方法。含2.6～4.0％Si的取向硅钢通常用的生产工艺包括热轧、两次冷轧、每次冷轧前的退火以及高温织构退火等工序。这些钢的特点是在10奥斯特时,导磁率大约为1790～1840G/Oe。近年来,若干专利透露了在10奥斯特时,导磁率超过1850(G/Oe)的硅钢生产方法。其中美国专利3287183、3632456和3636579号是最有趣的,然而在所见到的美国专利申请
This patent describes a method for the production of uni-directional silicon steel with a magnetic permeability of at least 1850 (G / Oe) at 10 Oersteds. The usual production processes for oriented silicon steel containing 2.6-4.0% Si include hot rolling, cold rolling twice, annealing before each cold rolling and high temperature texturing annealing. These steels are characterized by a magnetic permeability of about 1790-1840 G / Oe at 10 Oersteds. In recent years, several patents disclose the production of silicon steel with a permeability of over 1850 (G / Oe) at 10 Oersted. U.S. Patent Nos. 3,287,183, 3,632,456 and 3,636,579 are the most interesting of these, however, in the U.S. patent applications