二(er)手(shou)龍(long)門(men)吊(diao)粘(zhan)度(du)是(shi)表(biao)示(shi)油(you)液(ye)流(liu)動(dong)時(shi)分(fen)子(zi)間(jian)摩(mo)擦(ca)阻(zu)力(li)的(de)大(da)小(xiao)。粘(zhan)度(du)過(guo)大(da)時(shi)會(hui)增(zeng)加(jia)管(guan)路(lu)中(zhong)的(de)輸(shu)送(song)阻(zu)力(li)

，工(gong)作(zuo)過(guo)程(cheng)中(zhong)能(neng)量(liang)損(sun)失(shi)增(zeng)加(jia)，主(zhu)機(ji)空(kong)載(zai)損(sun)失(shi)加(jia)大(da)，溫(wen)升(sheng)快(kuai)且(qie)工(gong)作(zuo)溫(wen)度(du)高(gao)，在(zai)主(zhu)泵(beng)吸(xi)油(you)端(duan)可(ke)能(neng)出(chu)現(xian)“空穴”現象


；粘(zhan)度(du)過(guo)小(xiao)時(shi)則(ze)不(bu)能(neng)保(bao)證(zheng)工(gong)程(cheng)機(ji)械(xie)良(liang)好(hao)的(de)潤(run)滑(hua)條(tiao)件(jian)，加(jia)劇(ju)零(ling)部(bu)件(jian)的(de)磨(mo)損(sun)且(qie)係(xi)統(tong)泄(xie)漏(lou)增(zeng)加(jia)
，引(yin)起(qi)油(you)泵(beng)容(rong)積(ji)效(xiao)率(lv)下(xia)降(jiang)。具(ju)體(ti)采(cai)用(yong)時(shi)視(shi)液(ye)壓(ya)係(xi)統(tong)工(gong)作(zuo)壓(ya)力(li)
，工(gong)作(zuo)溫(wen)度(du)和(he)執(zhi)行(xing)元(yuan)件(jian)運(yun)動(dong)速(su)度(du)而(er)定(ding)。高(gao)壓(ya)
、高溫的宜選用高粘度
，高速運動的宜選擇低粘度。

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，tongchangyongzhanduzhishubiaoshi。zhanduzhishuyueda，yeyaxitonggongzuozhongyouyezhandusuiwendushenggaoxiajiangyuexiao
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，zuoyeguochengzhongyeyayouwendusuifuzaijihuanjingwenduerbianhua
，zhanduzhishuyibanbudediyu90。