风电用高强度紧固件用钢成分设计及热处理工艺研究  

Study on steel composition design and heat treatment technology for high strength fasteners of wind power

作　　者：包石磊 许志军 刘键 白澈力格尔 刘和家[1] BAO Shi-lei;XU Zhi-jun;LIU Jian;BAI Che-li-ge-er;LIU He-jia(TianJin RongCheng United Iron&Steel Group Co.,Ltd.,TIANJIN 300352;East China Branch of CISRI,JIANGSU 223000)

机构地区：[1]天津荣程联合钢铁集团有限公司,天津300352 [2]钢铁研究总院华东分院,江苏223000

出　　处：《天津冶金》2021年第3期30-32,37,共4页Tianjin Metallurgy

摘　　要：通过对GB/T3077中42CrMoA圆钢整体热处理工艺实验研究,认为仅仅通过热处理工艺的调整,材料的综合性能难以满足低温(-40℃)冲击功Akv大于27J、抗拉强度大1040 MPa的风电用高强度螺栓的技术要求。作者研究认为,在适当提高合金元素Mn含量的基础上,通过热处理工艺,材料综合性能可以接近甚至满足风电高强螺栓零件的技术要求;进一步的研究结果表明,采用Ti微合金化设计,材料低温(-40℃)冲击功Akv大于40J、抗拉强度大于1100 MPa,材料综合性能可以满足风电螺栓的技术要求。Through the heat treatment experimental study of 42CrMoA round steel in GB/T3077,thinking that through the mere adjustment of the heat treatment process,the comprehensive properties of the materials are difficult to meet the technical requirements of high-strength bolts for wind power with negative 40 degrees low temperature V-type impact work greater than 27 J and tensile strength of 1040 MPa.The study believes that on the basis of improving the content of manganese,by heat treatment process,the material comprehensive performance can be proximate to or even meet the technical requirements of wind power high-strength bolt parts.Further studies have shown that Ti microalloyed design,material negative 40 degrees low temperature V-type impact work is greater than 40J and tensile strength is greater than 1100 MPa,and the comprehensive performance of material can meet the technical requirements of high-strength bolts for wind power.

关 键 词：高强度风电螺栓 紧固件 低温冲击性能 热处理 

分 类 号：TM614[电气工程—电力系统及自动化] TG161[金属学及工艺—热处理]