低硅冷轧电机钢用热带的研制

Development and research on low silicon content cold-rolled hot strip of dynamo steel

结合承德钢厂电机硅钢开发项目,针对其无精炼设备,不采用电磁搅拌技术的现状,对比电机钢传统生产工艺,确定以中小型电机转子用硅钢为目标,通过合理的冶炼、连铸、热轧工艺设计,严格控制各工序工艺参数,在承钢普碳钢生产工艺流程的基础上进行工业试验,以开发研制低硅冷轧电机钢用热带.结果表明:成品电机钢的各项性能均达到国标50w1300标准,铸坯表面、内部没有明显缺陷,热轧、冷轧钢带表面良好,特别适合小电机转子的制造.

The middle and small electric machine rotors were studied in the condition of traditional steel-making technique in Chengdu Steel Corporation, which had no refining and electromagnetic stirring equipments. Following the reasonable technique of steelmaking, continuous casting and hot rolling, as well as the strict con-trol of the parameters of every procedure, the low silicon content cold-rolled hot strip of the dynamo steel was produced and reached the related national standard. The results show that the product of the dynamo steel reaches the international standard of 50W1300. There are no interior and exterior defects on the billet steel and the cold-rolled and hot-rolled strips are better on the surface, which is fit for the producing of small electric machine rotors.