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硼、氮和硫作为正常晶粒长大所需的抑制剂用于含硼硅钢的二次再结晶,有效硫是不与强硫化物形成元素例如锰化合的。一般晶粒取向硅钢和含铝高磁感硅钢均以MnS作为晶粒长大的抑制剂,并且热轧之前至少加热到1370℃,以便使其溶解。含硼硅钢的热轧条件是在热轧实验室用成份为B: 5～8 PPM,N:35～45PPM,Mn;0.025％和一定量的硫的几个炉号来研究的。对于形成MnS后仍有过剩硫的炉号,当从1100℃热轧时,在成品退火过程中仅仅发生了正常晶粒长大。而从1150℃和1200℃开始热轧时,则分别发生了局部的和完全的二次再结晶。硼的放射线自显照片证明:必须满足的主要冶金条件是氮化硼的溶解。在3.1％的硅钢中,由不同的热轧温度得出的硼的放射线自显照片和磁性能关系与氮化硼的乘积是一致的,含硼硅钢可用较低的热轧温度,对于这种材料的生产厂来说这是非常有利的。
Boron, nitrogen and sulfur are used as secondary recrystallization of boron-containing silicon steel as an inhibitor required for normal grain growth, and effective sulfur is not combined with a strong sulfide-forming element such as manganese. General grain-oriented silicon steel and aluminum-containing high-magnetic silicon steel with MnS as grain growth inhibitors, and hot-rolled prior to heating to at least 1370 ℃, in order to dissolve. The hot-rolled conditions for boron-containing silicon steel were studied in the hot-rolling laboratory using several furnace numbers having a composition of B: 5-8 PPM, N: 35-45 PPM, Mn; 0.025% and a certain amount of sulfur. For the furnace numbers with excess sulfur remaining after MnS formation, when hot rolled from 1100 ° C, only normal grain growth took place in the finished anneal. On the other hand, when the hot rolling starts from 1150 ° C and 1200 ° C, partial and complete secondary recrystallization occurs respectively. Radiographic autoradiography of boron demonstrated that the major metallurgical condition that must be met is the dissolution of boron nitride. In 3.1% of the silicon steel, the radiographic autoradiography of the boron from different hot rolling temperatures is consistent with the product of the boron nitride and boron borosilicate steel with a lower hot rolling temperature, This is very advantageous for materials manufacturers.