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.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2007年第4期47-50,共4页
Heat Treatment of Metals
关键词
螺旋弹簧
应力松弛
松弛装置
服役寿命
helical spring
stress relaxation
relaxation device
service life
