低温下碳滑板T型橡胶密封条气密性能试验研究  

Study of Air Tightness Test on T-shape Rubber Sealing Strip on Carbon Slide at Low Temperature

作　　者：刘思涵[1] 于水波[1] 张国文[1] 何忠[1] 

机构地区：[1]中国铁道科学研究院金属及化学研究所,北京100081

出　　处：《铁道技术监督》2016年第12期22-24,28,共4页Railway Quality Control

基　　金：中国铁道科学研究院科研项目(2016YJ161)

摘　　要：基于相关标准对碳滑板T型橡胶密封条进行气密性试验,研究低温下其压缩永久变形、体积收缩率、邵氏A硬度以及特定尺寸大小等参数对气密性的影响规律。通过试验得到优化的参数值,压缩永久变形值不大于30%、体积收缩率不大于1.5%、邵氏A硬度为65左右、特定尺寸在2.5 mm^2.6 mm时,橡胶密封条气密性能最好。An air tightness test is conducted on T-shape rubber sealing strips of carbon slide based on the relevantstandards,to study the affecting law of such four performance parameters to its air tightness,including the perma-nent compression deformation,the volume shrinkage,the Shore A hardness and the specific size of T-shape rubbersealing strips at low temperature.The test indicates a results is that,when the permanent compression deformationis no more than 30%,the volume shrinkage is no more than 1.5%,the Shore A hardness is around 65 and the specif-ic size is 2.5 mm^2.6 mm,the rubber sealing strips will reach a best air tightness.

关 键 词：橡胶密封条 气密性 永久变形 体积收缩率 邵氏A硬度 低温试验 

分 类 号：U264.34[机械工程—车辆工程] TQ330.73[交通运输工程—载运工具运用工程]