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1、各种密封橡胶的发展提供了必须的高温耐油性能,在270℃(室温)～121℃下它们在大多数汽车应用中是满意的.最近需要扩展其低温范围到-61℃--34℃,从实验室试验和野外经验已经证明这是必要的.2、特别需要对中等橡胶,如丙烯酸酯的基础聚合物进一步研制,以提供具有改善温度性能的材料.3、需要进一步研究材料的低温试验以确定各种橡胶/润滑剂组合的破坏方式和摩擦特性.4、必须研究经向唇密封低温试验的统一试验标准.简要说来,明显希望扩展橡胶胶料的温度范围至-34℃,而不会牺牲高温性能.认识到了解决这个问题的重要性和困难.通过努力已经研制出了许多橡胶和密封机构,于是有了具有满意物理性的易于模压的材料.汽车工业的要求有长期保证于线路上工作的元件,这就必需有可利用的油封材料.最终目标是发展不漏油封,即能承受时间上的寿命要求和能耐当前调滑剂温度.
1, The development of various sealing rubbers provides the necessary high temperature oil resistance, which is satisfactory in most automotive applications from 270 ° C (room temperature) to 121 ° C. Recently it has been necessary to extend its low temperature range to -61 ° C to -34 ° C ° C and this has been demonstrated from both laboratory and field experience.2 It is particularly desirable to further develop intermediate polymers such as acrylics to provide materials with improved temperature properties.3 Further studies of the Low temperature tests were conducted to determine the failure mode and friction characteristics of the various rubber / lubricant combinations.4 Uniform test standards for the low temperature testing of the longitudinal lip seals have to be studied In brief, it is obviously desirable to extend the temperature range of the rubber compound to -34 ° C Recognizing the importance and difficulty of solving this problem, we have worked hard to develop a number of rubber and sealing mechanisms that allow us to produce easily moldable materials with satisfactory physical properties. The automotive industry has long-term needs It is necessary to have available oil seal materials to ensure the components working on the line.The ultimate goal is to develop a seal without leakage that is able to withstand the life expectancy on time and Adjusting the current temperature resistant slip agent.