液(ye)壓(ya)油(you)的分類(lei)(lei)：按(an)用(yong)(yong)途分類(lei)(lei)：航(hang)空(kong)液(ye)壓(ya)油(you)、艦船液(ye)壓(ya)油(you)、數控機床液(ye)壓(ya)油(you)，特(te)(te)種液(ye)壓(ya)油(you)等(deng)(deng)。按(an)使(shi)(shi)用(yong)(yong)溫度(du)(du)范(fan)圍分類(lei)(lei)：普通(tong)、高溫、低(di)溫液(ye)壓(ya)油(you)，合肥液(ye)壓(ya)油(you)，寬(kuan)溫范(fan)圍液(ye)壓(ya)油(you)。液(ye)壓(ya)油(you)用(yong)(yong)途，抗磨液(ye)壓(ya)油(you)多少錢，除適用(yong)(yong)于(yu)各種液(ye)壓(ya)泵的中(zhong)高壓(ya)液(ye)壓(ya)系統外，液(ye)壓(ya)油(you)批發，也可(ke)用(yong)(yong)于(yu)中(zhong)等(deng)(deng)負荷工業齒輪(蝸輪、雙曲(qu)線齒輪除外)的潤滑(hua)。其應用(yong)(yong)的環(huan)境溫度(du)(du)為一(yi)10'C-40’C。液(ye)壓(ya)油(you)的分類(lei)(lei)：按(an)組成(cheng)分類(lei)(lei)：無添加劑型、型、高粘度(du)(du)指數液(ye)壓(ya)油(you)型等(deng)(deng)。按(an)使(shi)(shi)用(yong)(yong)特(te)(te)性分類(lei)(lei)：難燃(ran)、環(huan)保(bao)型等(deng)(deng)。按(an)使(shi)(shi)用(yong)(yong)壓(ya)力分類(lei)(lei)：普通(tong)、高壓(ya)液(ye)壓(ya)油(you)等(deng)(deng)。

液壓(ya)(ya)(ya)油(you)(you)(you)是(shi)在(zai)環境溫(wen)(wen)度(du)(du)變化大(da)的(de)(de)中低壓(ya)(ya)(ya)液壓(ya)(ya)(ya)系統(tong)中使用的(de)(de)液壓(ya)(ya)(ya)油(you)(you)(you)。該油(you)(you)(you)具(ju)有良好(hao)的(de)(de)防銹性(xing)能(neng)，并在(zai)此(ci)基礎上加入了(le)粘(zhan)度(du)(du)指數(shu)改(gai)進劑，使油(you)(you)(you)品具(ju)有較(jiao)好(hao)的(de)(de)粘(zhan)溫(wen)(wen)特性(xing)。液壓(ya)(ya)(ya)油(you)(you)(you)質(zhi)量要(yao)求，合適(shi)的(de)(de)粘(zhan)度(du)(du)和(he)良好(hao)的(de)(de)粘(zhan)溫(wen)(wen)性(xing)能(neng)，以保(bao)證(zheng)液壓(ya)(ya)(ya)元件在(zai)工(gong)作(zuo)(zuo)壓(ya)(ya)(ya)力和(he)工(gong)作(zuo)(zuo)溫(wen)(wen)度(du)(du)發(fa)生變化的(de)(de)條(tiao)件下得到(dao)良好(hao)潤滑、冷卻和(he)密(mi)封(feng)。液壓(ya)(ya)(ya)油(you)(you)(you)使用的(de)(de)注意(yi)事項：應(ying)保(bao)證(zheng)油(you)(you)(you)箱內油(you)(you)(you)液的(de)(de)溫(wen)(wen)升不超(chao)過液壓(ya)(ya)(ya)油(you)(you)(you)所允許(xu)的(de)(de)范圍，一(yi)切工(gong)作(zuo)(zuo)般要(yao)求不能(neng)超(chao)過60℃，否(fou)則(ze)需檢查液壓(ya)(ya)(ya)油(you)(you)(you)的(de)(de)冷卻系統(tong)。

液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)在中(zhong)，高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)系統(tong)(tong)中(zhong)使用(yong)(yong)時，低溫抗磨(mo)(mo)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)，不僅具有(you)良好的(de)(de)防(fang)銹(xiu)性(xing)(xing)，而(er)且其性(xing)(xing)能尤其突(tu)出。經研究使用(yong)(yong)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)的(de)(de)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)泵(beng)的(de)(de)壽命比防(fang)銹(xiu)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)的(de)(de)高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)泵(beng)的(de)(de)壽命要(yao)長3倍。液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)質量(liang)要(yao)求，良好的(de)(de)極壓(ya)(ya)(ya)(ya)(ya)性(xing)(xing)，以保證油(you)(you)泵(beng)、液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)馬(ma)達、控制閥和油(you)(you)缸中(zhong)的(de)(de)摩擦(ca)副在高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)、高(gao)(gao)(gao)速(su)苛刻條(tiao)件下得到(dao)正常的(de)(de)潤滑(hua)，減少磨(mo)(mo)損。液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)油(you)(you)用(yong)(yong)途，用(yong)(yong)于中(zhong)壓(ya)(ya)(ya)(ya)(ya)、高(gao)(gao)(gao)壓(ya)(ya)(ya)(ya)(ya)工程機(ji)械、引進設備和車輛(liang)的(de)(de)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)系統(tong)(tong)。如電(dian)腦(nao)數(shu)控機(ji)床(chuang)、隧(sui)道(dao)掘進機(ji)、履(lv)帶式起重機(ji)、液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)反鏟挖掘機(ji)和采煤(mei)機(ji)等的(de)(de)液(ye)(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)(ya)(ya)系統(tong)(tong)。