大連軟管總成主(zhu)要用(yong)于(yu)(yu)礦井液壓(ya)(ya)(ya)支(zhi)架、油田開采，適宜于(yu)(yu)工(gong)(gong)(gong)程建筑、起重運輸(shu)、冶金鍛(duan)壓(ya)(ya)(ya)、礦山(shan)設(she)備、船舶、注塑機(ji)(ji)械、農業機(ji)(ji)械、各種機(ji)(ji)床以及(ji)各工(gong)(gong)(gong)業部門機(ji)(ji)械化(hua)(hua)(hua)、自動(dong)(dong)化(hua)(hua)(hua)液壓(ya)(ya)(ya)系統中(zhong)輸(shu)送具有(you)一定壓(ya)(ya)(ya)力和溫(wen)度的(de)(de)石油基，如礦物油、可(ke)溶性油、液壓(ya)(ya)(ya)油、燃油、潤滑油及(ji)水基液體，如乳化(hua)(hua)(hua)液、油水乳濁液、水等(deng)和液體傳動(dong)(dong)用(yong)，最高耐工(gong)(gong)(gong)作壓(ya)(ya)(ya)力可(ke)達60MPa。軟管(guan)規定的(de)(de)工(gong)(gong)(gong)作壓(ya)(ya)(ya)力通常情(qing)況(kuang)下不(bu)(bu)能(neng)小于(yu)(yu)最大系統壓(ya)(ya)(ya)力,只有(you)在不(bu)(bu)常使(shi)(shi)用(yong)的(de)(de)情(qing)況(kuang)下,才允許(xu)提高20%；對(dui)于(yu)(yu)使(shi)(shi)用(yong)頻繁、經(jing)常彎扭者要降低40%。系統的(de)(de)沖擊壓(ya)(ya)(ya)力若高于(yu)(yu)軟管(guan)規定的(de)(de)工(gong)(gong)(gong)作壓(ya)(ya)(ya)力，不(bu)(bu)僅降低液壓(ya)(ya)(ya)軟管(guan)使(shi)(shi)用(yong)壽命，且可(ke)能(neng)導致人(ren)身設(she)備事(shi)故。這種氧(yang)化(hua)(hua)(hua)層極薄，透過(guo)它(ta)可(ke)以看到不(bu)(bu)銹鋼表面的(de)(de)自然光澤，使(shi)(shi)不(bu)(bu)銹鋼具有(you)獨(du)特的(de)(de)表面。而且，如果損壞了表層，所暴露出的(de)(de)鋼表面會(hui)和大氣反應進(jin)行自我修理，重新形成這種"鈍化(hua)(hua)(hua)膜(mo)"，繼續起保護作用(yong)。