双金属带锯条组织与退火冷却方式影响研究  

Research on the microstructure and annealing cooling mode of bimetal hacksaw blades

作　　者：王嘉 杨全毅 王娟 刘向薇 卜明哲 李晔 贾寓真 WANG Jia;YANG Quanyi;WANG Juan;LIU Xiangwei;BU Mingzhe;LI Ye;JIA Yuzhen(China Petroleum Engineering and Construction North China Company,Renqiu 062522,China;Bichamp Cutting Technology(Hu'nan)Co.,Ltd.,Changsha 410200,China)

机构地区：[1]中国石油工程建设有限公司华北分公司,河北任丘062522 [2]湖南泰嘉新材料科技股份有限公司,湖南长沙410200

出　　处：《电焊机》2019年第8期99-103,共5页Electric Welding Machine

摘　　要：采用大型钟罩式退火炉,研究双金属带锯条焊后800℃温度退火后,不同的退火冷却工艺对带锯组织及硬度的影响。结果表明,在20℃/h(平均)随炉冷却的速度范围内以及出炉罐温度在540~650℃范围内,双金属带锯条焊缝、齿背材硬度和金相组织均对冷却速度和出炉温度不敏感,说明双金属带锯在退火过程中的冷却方式有较大的调整空间。By using the large bell type annealing furnace,the influence of different annealing cooling procedures on the microstructure and hardness of hacksaw blades after the 800℃temperature annealing of bimetal hacksaw blades are systematically studied.The results show that in a furnace cooling speed range of 20℃/h(average)and discharging temperature range of 540~650℃,the weld,saw teeth back material hardness and metallographic structure of bimetal hacksaw blades are not sensitive to the cooling rate and discharging temperature,which shows that the cooling mode has a large adjustment space in the annealing process of bimetal hacksaw blades.

关 键 词：双金属带锯条 退火 冷却曲线 焊缝硬度 

分 类 号：TG457[金属学及工艺—焊接]