螺旋压缩弹簧应力松弛性能的动态试验研究  

Dynamic Experiment on Stress Relaxation Properties of Helical Compress Spring

作　　者：魏芳荣[1] 李家俊[1] 李群英[1] 李建明[1] 杜希文[1] 师春生 赵乃勤[1] 

机构地区：[1]天津大学材料学院,天津300072

出　　处：《金属热处理》2007年第4期47-50,共4页Heat Treatment of Metals

摘　　要：采用新研制的螺旋压缩弹簧应力松弛测试装置，实现了弹簧应力松弛的连续、带温测量及自动记录数据与显示松弛曲线，得到了60Si2Mn钢螺旋压缩弹簧在80～200℃内的松弛动力学方程，并由此推算出某一温度和时间条件下的应力松弛指标，为螺旋压缩弹簧的寿命评判提供了可靠的试验依据。Continuous measurements of spring stress relaxation with temperature as well as automatic data recording and relaxation curve displaying were realized on a newly developed test device for the stress relaxation of helical compress spring. The dynamical equation of stress relaxation under the temperature of 80 ～ 200 ℃ for helical compress spring made of 60Si2Mn steel wire was also obtained. According to the equation, the index of stress relaxation under a certain temperature during a certain period can be calculated, which has provided reliable experiment basis for evaluating the service life of the helical compress spring.

关 键 词：螺旋弹簧 应力松弛 松弛装置 服役寿命 

分 类 号：TG115.9[金属学及工艺—物理冶金]