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本文介绍了以AlN+Sb作抑制剂制造高磁感应取向硅钢的一种新方法.确定了合适的主要成分范围,板坯加热温度,常化和淬火制度,中间退火制度和冷轧压下率.与MnS+AlN方案相比,主要工艺特点是:合适的Al_酸量,常化和淬火温度范围变宽.调整Al_酸,C量和第二次冷轧压下率,可使板坯加热温度降到1250℃.采用两次冷轧法,第二次冷轧压下率为70—83%.0.35mm厚试样在表面无应力绝缘涂层情况下的磁性:B_(10)=1.88—1.96T,W_(15)=0.95—1.05W/kg,W_(17)=1.24—1.37W/kg,达到按MnS+AlN方案制的Hi-B级产品水平.
In this paper, a new method for producing high magnetic induction oriented silicon steel with AlN + Sb as inhibitor was introduced, and the suitable main composition range, slab heating temperature, normalizing and quenching system, intermediate annealing system and cold rolling reduction rate were determined. Compared with MnS + AlN program, the main process features are: suitable Al_ acid amount, normalization and quenching temperature range broadening.Adjusting Al_ acid, C amount and the second cold rolling reduction rate, the slab The heating temperature dropped to 1250 ° C. The cold rolling method twice, the second cold rolling reduction of 70-83% .0.35 mm thick sample in the absence of stress on the surface of the insulating coating magnetic case: B_ (10) = 1.88-1.96T, W_ (15) = 0.95-1.05W / kg and W_ (17) = 1.24-1.37W / kg respectively, reaching the level of Hi-B product according to the scheme of MnS + AlN.