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研究了20 mm薄板坯流程生产的高牌号无取向硅钢在热轧—常化—冷轧—退火过程中织构的演变。采用EBSD技术进行织构的测定。结果表明,热轧板沿板厚方向织构变化比较明显,S=0.9层的最强织构组分为高斯织构,S=0.5层的主要织构为{221}<227>,S=0处最强织构组分为旋转立方织构。常化板S=0.9层和S=0层存在较强的{223}<110>织构,S=0.5层的最强织构组分为{332}<113>织构。冷轧板各层以较强的{001}<110>-{223}<110>织构组成。退火板各层中均含有强的{001}<130>织构,表层含有一定量的γ纤维织构。
The textural evolution of a high grade non-oriented silicon steel produced by a 20 mm thin slab process during hot rolling-normalizing-cold-rolling-annealing was studied. EBSD technique was used to determine texture. The results show that the textures of the hot rolled plate vary obviously along the thickness direction. The strongest textured component of S = 0.9 layer is Gaussian texture. The main texture of S = 0.5 layer is {221} <227>, S = The strongest textured component at 0 is a cubic texture of rotation. There is a strong {223} <110> texture in S = 0.9 and S = 0 layers and a strongest texture component in S = 0.5 is {332} <113> texture. Cold-rolled sheet with a strong layer {001} <110> - {223} <110> texture composition. All layers of annealed sheet contain strong {001} <130> texture, the surface layer contains a certain amount of γ fiber texture.