退火工艺对冷轧钢板力学性能和显微组织的影响  

Effect of Annealing Process on the Microstructure and Mechanical Properties of Cold Rolled Steel Sheet

作　　者：李小权[1] 张磊[1] 栾彩霞[1] 

机构地区：[1]济钢集团有限公司技术中心,山东济南250101

出　　处：《山东冶金》2008年第S1期59-60,共2页Shandong Metallurgy

摘　　要：退火工艺与冷轧钢板力学性能和显微组织有着密切关系,退火加热温度越高、保温时间越长,冷轧成品的晶粒越粗大,反之则晶粒越细小,而合适的晶粒等级可有效改善冷轧板的综合成形性能。以钢种SPCC为例,通过对正常默认SPCC冷点温度(620℃)和提高SPCC加热过程冷点温度(635℃)2种情况进行分析研究,发现适当提高退火工艺中的冷点温度,可使冷轧成品的晶粒长大,综合成形性能提高,满足冲压过程对成形性能的要求。The annealing process has intimate relation to the mechanical properties and the microstructure of the cold rolled steel sheet.The higher the annealing temperature and the more long the heat preservation time is the bigger the grain,contrarily,the smaller the grain.The suitable grain can improve the synthetically forming property.In contrast with the default cold-point temperature(620℃),the higher cold-point temperature(635℃)can make the grain grow up and the synthetically forming property increase,and satisfy the forming property requirement.

关 键 词：退火工艺 力学性能 显微组织 成形性能 

分 类 号：TG151[金属学及工艺—热处理]