大連軟管總成主(zhu)要用(yong)于礦(kuang)井液壓(ya)(ya)(ya)支架、油田(tian)開采，適宜于工(gong)程建(jian)筑、起(qi)重運輸、冶金鍛壓(ya)(ya)(ya)、礦(kuang)山(shan)設(she)備、船舶(bo)、注塑機(ji)(ji)(ji)械(xie)、農業機(ji)(ji)(ji)械(xie)、各(ge)種機(ji)(ji)(ji)床以及各(ge)工(gong)業部門機(ji)(ji)(ji)械(xie)化(hua)、自動(dong)(dong)化(hua)液壓(ya)(ya)(ya)系統(tong)中輸送具有(you)(you)一定(ding)壓(ya)(ya)(ya)力(li)和溫度的(de)(de)(de)(de)(de)(de)石(shi)油基，如(ru)(ru)礦(kuang)物(wu)油、可(ke)溶(rong)性油、液壓(ya)(ya)(ya)油、燃(ran)油、潤(run)滑油及水(shui)基液體，如(ru)(ru)乳(ru)化(hua)液、油水(shui)乳(ru)濁液、水(shui)等和液體傳動(dong)(dong)用(yong)，最高耐(nai)工(gong)作壓(ya)(ya)(ya)力(li)可(ke)達60MPa。軟(ruan)(ruan)管(guan)規定(ding)的(de)(de)(de)(de)(de)(de)工(gong)作壓(ya)(ya)(ya)力(li)通常情(qing)(qing)況下不(bu)(bu)能(neng)小于最大(da)系統(tong)壓(ya)(ya)(ya)力(li),只有(you)(you)在不(bu)(bu)常使(shi)用(yong)的(de)(de)(de)(de)(de)(de)情(qing)(qing)況下,才允許(xu)提高20%；對于使(shi)用(yong)頻繁、經(jing)常彎扭者要降低(di)40%。系統(tong)的(de)(de)(de)(de)(de)(de)沖擊(ji)壓(ya)(ya)(ya)力(li)若高于軟(ruan)(ruan)管(guan)規定(ding)的(de)(de)(de)(de)(de)(de)工(gong)作壓(ya)(ya)(ya)力(li)，不(bu)(bu)僅降低(di)液壓(ya)(ya)(ya)軟(ruan)(ruan)管(guan)使(shi)用(yong)壽命，且可(ke)能(neng)導致人身設(she)備事故。這種氧化(hua)層(ceng)極薄，透過它可(ke)以看到不(bu)(bu)銹鋼(gang)表(biao)面(mian)的(de)(de)(de)(de)(de)(de)自然(ran)光澤，使(shi)不(bu)(bu)銹鋼(gang)具有(you)(you)獨特的(de)(de)(de)(de)(de)(de)表(biao)面(mian)。而且，如(ru)(ru)果(guo)損壞(huai)了(le)表(biao)層(ceng)，所暴露出(chu)的(de)(de)(de)(de)(de)(de)鋼(gang)表(biao)面(mian)會和大(da)氣反(fan)應進(jin)行(xing)自我修理，重新形成這種"鈍化(hua)膜"，繼續起(qi)保(bao)護作用(yong)。