汽车车门用高强防撞杆在高频淬火加热中的组织转变  

Microstructure transformation of door impact beam on induction hardening

作　　者：夏晓宇 肖锦涯 韦汉伟 王申 Xia Xiaoyu;Xiao Jinya;Wei Hanwei;Wang Shen(Guangzhou Fengdong Neturen Co.,Ltd.,Guangzhou Guangdong 510880,China)

机构地区：[1]广州丰东热炼有限公司,广东广州510880

出　　处：《金属热处理》2021年第10期212-217,共6页Heat Treatment of Metals

摘　　要：研究了国产BR1500HS高强钢制汽车车门防撞杆的高频感应淬火工艺,探究了在不同的进给速度下(70~120 mm/s),防撞杆获得完全淬透组织时的加热电压与进给速度的关系曲线图。结果发现,加热电压随进给速度的降低,淬透所需的加热电压也降低,并以分界线的形式区分是否完全淬透。防撞杆高频感应淬火采用分界线以上30 V的加热电压范围,其力学性完全能满足汽车主机厂的性能要求。Domestic made BR1500HS high-strength steel automobile door impact beam was studied by using high-frequency induction heat treatment technology,when the impact beam obtained a complete hardened microstructure under the different feeding speed between 70-120 mm/s,the relationship between heating voltage and feeding speed of the impact beam was explored.The results show that with the decrease of feeding speed,the heating voltage required for through quenching also decreases,and the demarcation line is used to distinguish whether it is completely hardened.The high-frequency induction hardening of the impact beam adopts a heating voltage range of 30 V above the dividing line,and its mechanical properties can fully meet the properties requirements of the automobile factory.

关 键 词：车门防撞杆 BR1500HS钢 显微组织 力学性能 

分 类 号：TG156.3[金属学及工艺—热处理]