论文部分内容阅读
通过包覆浇铸和传统的热塑性变形工艺制备了覆层为Q235低碳钢、芯层为含硅10wt%硅铁合金的6.5wt%高硅电工钢复合板,并用光学显微镜和扫描电镜分析了覆层和芯层之间的冶金结合状况、微观组织变化和合金元素分布。经适当的扩散退火工艺可消除热塑性变形过程中产生的裂纹,同时复合板转变成单层的6.5wt%高硅钢薄板。通过显微硬度测试,确定了材料中的Si含量。结果表明,真空冶炼炉对脆性显著且难变形含硅10wt%的硅铁合金进行包覆浇铸,在传统轧机上可对其进行大压下的塑性变形,可为6.5%高硅电工钢板材的生产提供一种短流程方法。
The cladding layer of Q235 low carbon steel and the core layer of 6.5wt% high silicon electrical steel clad laminate with cladding layer of 10wt% silicon ferroalloy were prepared by cladding casting and conventional thermoplastic deformation process. The coatings were analyzed by optical microscope and scanning electron microscope And metallurgical bonding between the core, microstructure changes and alloying elemental distribution. The appropriate diffusion annealing process can eliminate the cracks generated during the thermoplastic deformation, while the composite plate into a single layer of 6.5wt% silicon steel sheet. Through the microhardness test, the Si content in the material was determined. The results show that the vacuum smelting furnace is used to coat and cast ferrosilicon alloy with significant brittleness and hard-to-deform 10wt% silicon. The conventional rolling mill can be used for plastic deformation under high pressure, which can be 6.5% high silicon electrical steel sheet Provide a short process method.