潤滑油凝點檢測傾點測定

凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)是(shi)指在規定的(de)(de)冷卻條件下油(you)品(pin)停止流(liu)動(dong)的(de)(de)最高溫(wen)度(du)(du)。.油(you)品(pin)的(de)(de)凝(ning)(ning)固(gu)和(he)(he)純化臺物(wu)的(de)(de)凝(ning)(ning)固(gu)有很大的(de)(de)不(bu)(bu)同。油(you)品(pin)并沒有明確的(de)(de)凝(ning)(ning)固(gu)溫(wen)度(du)(du)，所謂"凝(ning)(ning)固(gu)"只(zhi)是(shi)作為(wei)整體來(lai)看失去了流(liu)動(dong)性，并不(bu)(bu)是(shi)所有的(de)(de)組分(fen)都變成了固(gu)體。3.21潤(run)(run)(run)滑(hua)油(you)的(de)(de)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)是(shi)表示潤(run)(run)(run)滑(hua)油(you)低(di)(di)溫(wen)流(liu)動(dong)性的(de)(de)一個重(zhong)要(yao)(yao)質(zhi)量指標。對于生(sheng)產、運輸(shu)和(he)(he)使用(yong)(yong)都 有重(zhong)要(yao)(yao)意(yi)義。凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)高的(de)(de)潤(run)(run)(run)滑(hua)油(you)不(bu)(bu)能(neng)在低(di)(di)溫(wen)下使用(yong)(yong)。相反(fan)， 在氣(qi)溫(wen)較高的(de)(de)地區則沒有必要(yao)(yao)使用(yong)(yong)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)低(di)(di)的(de)(de)潤(run)(run)(run)滑(hua)油(you)。因為(wei)潤(run)(run)(run)滑(hua)油(you)的(de)(de)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)越低(di)(di),其生(sheng)產成本(ben)越高,造成不(bu)(bu)必要(yao)(yao)的(de)(de)浪費(fei)。一般說來(lai)， 潤(run)(run)(run)滑(hua)油(you)的(de)(de)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)應(ying)比(bi)使用(yong)(yong)環(huan)境(jing)的(de)(de)zui低(di)(di)溫(wen)度(du)(du)低(di)(di)5~7°C。但是(shi)特(te)別還要(yao)(yao)提及的(de)(de)是(shi)在選用(yong)(yong)低(di)(di)溫(wen)的(de)(de)潤(run)(run)(run)滑(hua)油(you)時，應(ying)結臺油(you)品(pin)的(de)(de)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)、低(di)(di)溫(wen) 粘度(du)(du)及粘溫(wen)特(te)性全面考慮(lv)。因為(wei)低(di)(di)凝(ning)(ning)點(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)油(you)品(pin):其低(di)(di)溫(wen)粘度(du)(du)和(he)(he)粘溫(wen)特(te)性亦有可(ke)能(neng)不(bu)(bu)符合(he)要(yao)(yao)求(qiu)。

凝(ning)點(dian)(dian)和傾(qing)點(dian)(dian)都是油品低溫流動性的(de)指標，兩者無原則的(de)差別(bie)，只是測定方法(fa)稍有不同。同- 油品的(de)凝(ning)點(dian)(dian)和傾(qing)點(dian)(dian)并不相等(deng).-般傾(qing)點(dian)(dian)都高(gao)于凝(ning)點(dian)(dian)2~3°C,但也有例外。