在四柱液壓機的(de)液(ye)(ye)壓(ya)(ya)缸零件(jian)(jian)(jian)表(biao)面(mian)與液(ye)(ye)壓(ya)(ya)油相對(dui)運動(dong)時，溶解在液(ye)(ye)壓(ya)(ya)油中的(de)氣(qi)體容易(yi)析出并形成氣(qi)泡。這(zhe)些氣(qi)泡流(liu)到高(gao)壓(ya)(ya)區后發(fa)生(sheng)破裂，瞬間(jian)產生(sheng)的(de)高(gao)溫高(gao)壓(ya)(ya)顯微射(she)流(liu)和沖擊力反復(fu)作用(yong)于四柱液(ye)(ye)壓(ya)(ya)機的(de)液(ye)(ye)壓(ya)(ya)缸零件(jian)(jian)(jian)表(biao)面(mian)，便(bian)使零件(jian)(jian)(jian)表(biao)面(mian)產生(sheng)氣(qi)蝕。四柱液(ye)(ye)壓(ya)(ya)機的(de)液(ye)(ye)壓(ya)(ya)缸氣(qi)蝕產生(sheng)的(de)條件(jian)(jian)(jian)與液(ye)(ye)壓(ya)(ya)系(xi)統結構、四柱液(ye)(ye)壓(ya)(ya)機的(de)液(ye)(ye)壓(ya)(ya)缸零件(jian)(jian)(jian)材料、液(ye)(ye)壓(ya)(ya)油質量、制造及維(wei)修等方面(mian)都有一定關系(xi)。