退火温度制度对CSP流程冷轧深冲板性能和织构的影响

Influences of Temperature System on Cold Rolled Deep-Drawing Sheet Produced by CSP Process

在实验室条件下，对CSP流程供原料生产的冷轧低碳钢板进行不同慢速升温速度（30～50℃／h）和不同保温温度（660～700℃）的模拟退火试验，对试样的性能和织构进行测量，分析温度制度对成品板的性能、组织和织构的影响。结论认为，为使CSP流程供料的冷轧深冲板获得良好的性能和织构，当保温温度为680℃保温10h时，慢速升温速度应控制在40℃／h左右；当慢速升温速度为35℃／h，保温10h时，保温温度应控制在680～700℃。退火后成品板丫取向线上{111}〈110〉织构和{111}〈112〉织构的取向分布密度差随升温速度的增大而减小，但基本不受保温温度影响。

Under laboratory condition, influences of different heating rates （30-50 ℃/h） and different annealing temperatures （660--700 ℃） on properties and textures of cold rolled deep-drawing sheet produced by CSP process were investigated. The results show that when annealing temperature is 680 ℃, and holding time is 10 h, the heating rates should be controlled in the range from 40 ℃/h to 30 ℃/h; when heating rate is 35 ℃/h and holding time is 10 h, the annealing temperature should be controlled in the range between 680 ℃and 700 ℃. The difference of orientation distribution density of { 111 } 〈 110〉 and { 111 } 〈 112 〉 texture decreases as the heating rates increase, but is not affected obviously by annealing temperature.