PC钢棒延迟断裂原因探讨  

DISCUSSION ABOUT REASON FOR DELAYED FRACTURE OF PC STEEL BAR

作　　者：靳国兵[1] 赵鹏举[2] 孙彩凤[1] 

机构地区：[1]河北钢铁集团邯钢公司技术中心,河北邯郸056015 [2]河北钢铁集团邯钢公司质量检验部,河北邯郸056015

出　　处：《河北冶金》2013年第8期14-16,共3页Hebei Metallurgy

摘　　要：介绍了30MnSi钢棒生产工艺流程,分析了PC钢棒延迟断裂的断口形貌、化学成分、气体含量、金相组织、脱碳层、表面质量。为消除PC钢棒延迟断裂的原材料缺陷,提出了PC钢棒用30MnSi钢盘条质量的工艺改进措施。It is introduced the production process of 30NnSi steel bar, analyzed the delayed fracture of PC steel bar in the following respects： the fracture surface morphology, chemical composition, air content, met- allographic structure, decarburization layer, surface quality. To eliminate the defect of raw material for PC steel bar, process improving measures proposed for quality of wire bar of 30MnSi steel used for PC steel bar.

关 键 词：PC钢棒 延迟断裂 原因 探讨 

分 类 号：TG335.6[金属学及工艺—金属压力加工]