潤滑油空(kong)氣釋放值測(ce)定儀(yi)的原理  

潤(run)滑(hua)油(you)(you)空(kong)(kong)氣(qi)釋放(fang)值測(ce)定儀(yi)是(shi)一(yi)種適(shi)用(yong)于檢測(ce)潤(run)滑(hua)油(you)(you)(如(ru)氣(qi)輪機油(you)(you)、液壓(ya)油(you)(you)等石油(you)(you)產(chan)品)分離霧(wu)沫空(kong)(kong)氣(qi)的(de)能力的(de)儀(yi)器(qi)。使(shi)用(yong)該儀(yi)器(qi)時(shi),將(jiang)試(shi)樣(yang)加熱(re)到(dao)- -定 溫度,通(tong)過對試(shi)樣(yang)吹入過量(liang)的(de)壓(ya)縮空(kong)(kong)氣(qi),使(shi)試(shi)樣(yang)劇烈(lie)攪動,空(kong)(kong)氣(qi)在試(shi)樣(yang)中形成(cheng)小氣(qi)泡,即霧(wu)沫空(kong)(kong)氣(qi)。停氣(qi)后記(ji)錄試(shi)樣(yang)中霧(wu)沫空(kong)(kong)氣(qi)體積減到(dao)0.2%的(de)時(shi)間"。

空(kong)氣(qi)釋放(fang)值(zhi)對(dui)于(yu)液(ye)(ye)壓(ya)油(you)(you)(you)非常重(zhong)要,因(yin)為液(ye)(ye)壓(ya)油(you)(you)(you)里(li)含有(you)空(kong)氣(qi)有(you)諸多危害(hai),如:增加液(ye)(ye)壓(ya)油(you)(you)(you)的(de)可壓(ya)縮性,受到壓(ya)縮會使(shi)(shi)油(you)(you)(you)溫升(sheng)高,縮短液(ye)(ye)壓(ya)油(you)(you)(you)的(de)使(shi)(shi)用(yong)壽命(ming)、使(shi)(shi)液(ye)(ye)壓(ya)泵氣(qi)蝕(shi)損壞。所以(yi)對(dui)潤(run)滑(hua)油(you)(you)(you)空(kong)氣(qi)釋放(fang)值(zhi)測定儀校準(zhun)方法進行研(yan)究有(you)著(zhu)非常重(zhong)要的(de)意義。目前，我國并沒有(you)相關的(de)計量校準(zhun)規范，因(yin)此本文根(gen)據潤(run)滑(hua)油(you)(you)(you)空(kong)氣(qi)釋放(fang)值(zhi)測定儀的(de)實際情況及長期校準(zhun)積累經(jing)驗(yan),提(ti)供-種(zhong)用(yong)于(yu)潤(run)滑(hua)油(you)(you)(you)空(kong)氣(qi)釋放(fang)值(zhi)測

定儀的方法。

潤(run)滑油(you)空氣釋(shi)放值測定(ding)儀工作(zuo)原(yuan)理

潤滑油空氣(qi)釋放值測(ce)定儀通(tong)過(guo)將試樣(yang)(yang)加(jia)熱到(dao)259C、509或75C,通(tong)過(guo)對試樣(yang)(yang)吹入過(guo)量的壓(ya)縮(suo)空氣(qi)，使試樣(yang)(yang)劇烈攪動，空氣(qi)在試樣(yang)(yang)中(zhong)形成小氣(qi)泡，即霧沫空氣(qi)。停(ting)氣(qi)后記錄試樣(yang)(yang)中(zhong)霧沫空氣(qi)體(ti)積減到(dao)0.2%的時間。