N80-1套管工艺及性能研究  

Study on Technology and Performances of N80-1 Casing

作　　者：米永峰[1] 罗海炯 刘玉荣[1] 郭志文[1] 罗忠辉 董珍[3] 王鹏[1] Mi Yong-feng;Luo Hai-jiong;Liu Yu-rong;Guo Zhi-wen;Luo Zhong-hui;Dong Zhen;Wang Peng(Steel Tube Co. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China;Technology and Quality Dept. of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China;Technical Center of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010,Inner Mongolia Autonomous Region, China)

机构地区：[1]内蒙古包钢钢联股份有限公司钢管公司,内蒙古包头014010 [2]内蒙古包钢钢联股份有限公司技术质量部,内蒙古包头014010 [3]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010

出　　处：《包钢科技》2019年第4期10-13,21,共5页Science & Technology of Baotou Steel

摘　　要：文章基于Q/YS 1572. 1标准中对规格为Φ139. 7 mm×7. 72 mm的N80-1套管屈服强度和冲击韧性指标,工业试验摸索了在线常化工艺中再加热温度对钢管屈服强度和冲击功的影响。工业试验结果表明,钢管入再加热炉前的温度不高于550℃,钢管再加热温度控制在870~900℃,可实现钢管的屈服强度达到570~620 MPa,0℃半尺寸纵向冲击功不低于40 J,钢管的屈服强度及冲击韧性满足Q/YS 1572. 1标准要求。In the paper,the effects of reheating temperature in the on-line normalizing process on yield strength and impact energy of steel tube were explored with industrial experiments based on the indexes of yield strength and impact toughness for Φ139. 7 mm × 7. 72 mm N80-1 casing in the Q/YS 1572. 1 standard. The results showed that the yield strength of steel tube could reach 570 ~ 620 MPa and the half-size longitudinal impact energy at 0 ℃ is ≥40 J if the temperature of steel tube before entering reheating furnace was ≤550 ℃ and reheating temperature was controlled at 870 ~900 ℃,which could meet the requirements of the Q/YS 1572. 1 standard.

关 键 词：N80-1套管 再加热温度 在线常化 

分 类 号：TG335.71[金属学及工艺—金属压力加工]