无取向电工钢CSP-冷轧-退火过程中的织构演变

Texture Evolution of Non-Oriented Electrical Steel in CSP-Cold Rolling-Annealing Process

利用ODF图研究了采用CSP工艺生产的热轧带钢为基料的无取向电工钢在冷轧生产过程中的织构演变。结果表明,无取向电工钢冷轧生产过程中,从CSP热轧带钢到退火成品,织构强度逐渐减弱。从热轧带钢到冷轧带钢织构骨架线保持不变,都是沿<011>方向。退火态成品织构分布比较均匀。无取向电工钢在冷轧生产过程中,晶粒取向由α纤维线向γ纤维线转动。当w(Si+Al)从1.0%增加至1.5%时,在冷轧及退火过程中它对热轧织构的影响逐渐减弱。

Texture evolution of non-oriented electrical steel produced by CSP technology in cold rolling and annealing process was investigated by using of orientation distribution function （ODF） determination. The results show that the texture intensity in hot rolled non-oriented electrical steel strip decreases after cold rolling and annealing. The major orientation fibres in cold rolled electrical steel strip remain the same as in hot rolled strip, along 〈011〉. The textures of annealed strip distribute uniformly. The grain orientation of steel strips turns from a fibre texture to γ fibre texture during cold rolling. The influence of （Si＋Al） content on texture in cold rolled and annealed steel inclines to be weaker,with （Si＋Al） content increasing from 1.0% to 1.5%.