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本文将0～0．16间的热带钢回火轧制应变量对低碳电工钢磁性在10、15和17KG磁感应时的影响进行了研究。热带钢在800℃经15分钟退火后，由于大量的回火轧制应变导致其晶粒结构发生变化。如果不经过回火轧制应变，在热带钢内会出现覆盖整个厚度的大部分细小晶粒以及靠近表面层的大块圆柱状晶粒。若经过0.04～0.08间的回火轧制应变，热带钢板中间部分会出现覆盖整个厚度的大块无序晶粒以及少部分细小晶粒。经过0．12～0．16间的回火轧制应变，热带钢中会出现一个均匀的中间尺寸晶粒结构。在820℃经1分钟最终退火后，低碳电工钢经过0．04～0．12间的热带回火轧制应变便呈现出比其它条件下较大的晶粒尺寸。经0．16热带回火轧制应变的低碳电工钢织构比其它情况下的织构更差。而在0．04～0．12间的热带钢回火轧制应变，与其它情况相比，低碳电工钢呈现出较低的交流铁芯损耗和磁滞损耗。在0．04～0．12间的热带钢回火轧制应变可以改善17KG磁感应下的交流和直流磁导率，同时也改善了低碳电工钢的磁通密度。
In this paper, the influence of 0 ~ 0.16 tempering rolling temperature on the magnetic properties of low carbon electrical steel at 10, 15 and 17KG magnetic induction was studied. After annealing of the hot strip at 800 ° C for 15 minutes, the grain structure changes due to a large amount of tempering rolling strain. Without temper rolling strain, most of the fine grains covering the entire thickness and large cylindrical grains near the surface layer appear in the hot strip. If after 0.04 ~ 0.08 between the tempering rolling strain, the middle part of the tropical plate will appear to cover the entire thickness of large disordered grains and a small number of small grains. After 0.12 ~ 0.16 between the tempering rolling strain, the tropical steel will appear in a uniform grain size of the intermediate structure. After annealed at 820 ° C for 1 minute, the low-carbon electrical steel shows a larger grain size than that under other conditions after a hot tempering rolling between 0.04 and 0.12. Low-carbon electrical steel textured by 0.16 hot-tempered rolling strain worse than in other cases. In the range of 0.04 to 0.12, temper rolling strain of the hot strip is compared with other cases, and the low carbon electrical steel exhibits lower AC core loss and hysteresis loss. The tempering rolling strain of hot strip from 0.04 to 0.12 can improve the AC and DC permeability under 17KG magnetic induction and improve the flux density of low carbon electrical steel.