Abstract: The effect of original structure of 27.5 mm hot rolled plate ( hot rolled status, 850 °C annealed, 950 ℃  annealed) on evolution of texture of cold rolled status and 870 T annealed 0. 5 mm cold rolled non-oriented silicon steel 50W600 sheet (/% : 0. 004C, 0. 33Si, 0. 38Mn, 0. 099P, 0. 007S, 0. 32A1) has been studied. Results show that after cold rolling the texture density of {100} < 011 > and {112} < 110 > in texture of cold rolled sheet increases obviously, and the texture density of sheet cold-rolled by non-annealed hot rolled plate is larger than that cold-rolled by annealed hot rolled plate ； in texture of recrystallization annealed sheet cold-rolled by non-annealed hot rolled plate, the main texture is {100}〈011〉、{110}〈011〉and {111}〈112〉, while in texture of recrystallization annealed sheet cold-rolled by annealed hot rolled plate, besides {100}〈011〉and {110}〈011〉there is higher density Goss-texture.

Key words: Non-Oriented Silicon Steel, Original Structure of Hot Rolled Plate, Cold Rolled Sheet, Recrystallization Annealing, Texture

摘要： 研究了27.5 mm热轧板的初始组织(热轧态,850℃退火、950℃退火)对冷轧态和870℃退火的0.5mm冷轧无取向硅钢50W600薄板(/%:0.004C、0.33Si、0.38Mn、0.099P、0.007S、0.32Al)织构演变的影响。结果表明,经冷轧后冷轧板织构中{100}〈011〉和{112}〈110〉织构密度明显增大,末退火热轧板轧成的冷轧板织构密度较退火热轧板轧成的冷轧板强;经未退火热轧板冷轧成的薄板再结晶退火后的织构中主要为{100}〈011〉、{110}〈011〉和{111}〈112〉,退火热轧板冷轧成的薄板再结晶退火后的织构除{100}〈011〉和{110}〈011〉外还有密度较强的高斯织构。

关键词: 无取向硅钢, 热轧板初始组织, 冷轧板, 再结晶退火, 织构