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磷是钢中的必存元素。在电工钢中,磷和硅相似,溶于铁中成为替代式固溶体;磷排斥钢中的碳原子而促进脱碳,增加铁基体的电阻率和促使晶粒长大;磷还能改善电工钢板的冲片性能。因此,国内外已普遍用磷来提高电工钢板的电磁性能,并已大量生产含磷的无硅、低硅电工钢板。我厂自1980年以来,对含磷无硅(P约为0.10％)和含磷低硅(P约为0.10％,Si约为0.90％)电工钢,采用一次轧制和两相区连续脱碳退火工艺,生产出了高磁感无取向电工钢(B_(50)=17.3—17.9千高斯,P15/50=3.90—4.40瓦/公斤)。这种电工钢的结构特点是在其板厚方向上为
Phosphorus is an essential element in steel. In electrical steel, phosphorus and silicon are similar and dissolve in iron to become an alternative solid solution. Phosphorus repels the carbon atoms in the steel to promote decarburization, increases the resistivity of the iron matrix, and promotes grain growth. Phosphorus also improves electrical steel Punch performance. Therefore, phosphorus has been widely used at home and abroad to improve the electromagnetic properties of electrical steel plates, and phosphorus-containing silicon-free and low-silicon electrical steel plates have been mass produced. Since 1980, our factory has adopted one-time rolling and continuous two-phase zone for electrical steel containing phosphorus-free silicon (P is about 0.10%) and phosphorus-containing low silicon (P is about 0.10%, Si is about 0.90% Carbon annealing process to produce high magnetic induction non-oriented electrical steel (B_ (50) = 17.3-17.9 kilo Gauss, P15 / 50 = 3.90-4.40 W / kg). The structural characteristics of this electrical steel in its thickness direction