改善电磁吸盘用钢的组织及性能的研究

Study on Improving foe Structure and Properties of Magnet Steel of Attraction Disc

降低含碳量可明显提高碳钢电磁性能（如导磁率），但这势必降低铸造性能，为解决该矛盾，进行了ＲＥ－Ｃａ变质处理的试验研究。结果表明，经ＲＥ－Ｃａ变质处理后，可有效细化钢的组织，改善夹杂物形态、大小和分布，从而提高钢的力学性能。同时，使钢既有满意的电磁性能，又使其铸造性能得到改善。

Any decrease in carbon content results in a increase of the electromagnetic properties and a deterioration of the castig properties, for this purpose, the experiment on the complex modification of magnet steel by RE--Ca alloy has been under way. The results revealed that, after modification. the structure of cast steel is refined and the morphology. size and distribution of the inclusions arc improved , thus increasing the mechanical properties, the satisfactory electromagnetic properties and casting properties can be achieved.