海量資源,盡在掌握
 1.金屬皂類金屬皂類既是潤滑劑,又是一種熱穩(wěn)定劑;內(nèi)、外潤滑作用兼有。常用金屬皂類潤滑劑及加入量是:PbSt,0.2~1.0份;ZnSt,0.15份;LiSt,0.6份;BaSt,0.2~1.0份;CaSt,0.2~1.5份。2.烴類烴類按分子質(zhì)量大小可分為液體石蠟(C16~C21)、固體石蠟 (共 882 字) [閱讀本文] >>