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为了获得工程机械传动油与几种橡胶的相容性,研究了几种工程机械用传动油与标准氟橡胶(FKM2)、丁腈橡胶(NBR1)、氢化丁腈橡胶(HNBR1)和三元乙丙橡胶(EPDM1)的相容性。将橡胶片浸泡在规定温度的传动油中并保持一定的时间,考察浸泡前后橡胶片的体积变化、硬度变化、拉伸强度变化和拉断伸长率变化,以此对传动油与橡胶的相容性进行评价。结果表明,FKM2和HNBR1与传动油具有良好的橡胶相容性;NBR1浸泡试验后收缩严重,硬度变大,该类型橡胶应用前需通过相容性试验考察;EPDM1浸泡试验后发生了较大溶胀变形,与工程机械传动油不相容,不能作为传动系统密封件材料。
In order to obtain the compatibility of transmission oil of construction machinery with several kinds of rubber, several kinds of transmission oils of construction machinery were studied with FKM2, NBR1, HNBR1 and BNB Propylene rubber (EPDM1) compatibility. The rubber sheet was soaked in the transmission oil at a predetermined temperature and maintained for a certain period of time. The volume change, hardness change, tensile strength change and elongation at break of the rubber sheet before and after immersion were examined to evaluate the transmission oil and rubber phase Capacitive evaluation. The results show that FKM2 and HNBR1 have good rubber compatibility with transmission oil. After NBR1 immersion test, the shrinkage is serious and the hardness increases. The compatibility test should be conducted before application of this kind of rubber. After the EPDM1 immersion test, Deformation, and construction machinery transmission oil is not compatible with the transmission system seal material.