１、橡膠軟管總成
1）高壓(ya)膠(jiao)(jiao)管由內(nei)(nei)膠(jiao)(jiao)層(ceng)、提(ti)高層(ceng)和外(wai)膠(jiao)(jiao)層(ceng)構(gou)成(cheng)（如圖(tu)例），內(nei)(nei)膠(jiao)(jiao)層(ceng)立即與(yu)液(ye)壓(ya)油觸(chu)碰，故規定在(zai)(zai)長期性(xing)(xing)(xing)(xing)(xing)運行狀態下不(bu)可受(shou)液(ye)體浸蝕，能(neng)補漏。在(zai)(zai)提(ti)高層(ceng)功效下會(hui)承(cheng)擔一(yi)定工作壓(ya)力。因(yin)而，宜選用(yong)丁腈橡膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒(li)外(wai)，危(wei)害性(xing)(xing)(xing)(xing)(xing)能(neng)的(de)關鍵要(yao)素也有內(nei)(nei)膠(jiao)(jiao)層(ceng)的(de)強(qiang)度、薄(bo)厚和永(yong)(yong)(yong)久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量。強(qiang)度和永(yong)(yong)(yong)久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量對密(mi)封(feng)性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)危(wei)害非常(chang)大。一(yi)般(ban)強(qiang)度高、縮(suo)(suo)小后的(de)永(yong)(yong)(yong)久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量小，密(mi)封(feng)性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)則越好。一(yi)般(ban)是在(zai)(zai)７０～８５邵氏(shi)硬度，縮(suo)(suo)小永(yong)(yong)(yong)久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變５０％時。內(nei)(nei)膠(jiao)(jiao)層(ceng)薄(bo)厚建議(yi)是為１．５～２．５ｍｍ，太厚會(hui)在(zai)(zai)壓(ya)扣(kou)(kou)時提(ti)升(sheng)其流動(dong)率，導(dao)(dao)致不(bu)必要(yao)的(de)膠(jiao)(jiao)在(zai)(zai)接頭芯套與(yu)橡膠(jiao)(jiao)軟(ruan)管的(de)觸(chu)碰內(nei)(nei)孔內(nei)(nei)沉積，減少商(shang)品流通橫截面；過(guo)薄(bo)會(hui)在(zai)(zai)壓(ya)扣(kou)(kou)時被壓(ya)裂(lie)(lie)。另外(wai)內(nei)(nei)膠(jiao)(jiao)層(ceng)壁厚勻(yun)稱性(xing)(xing)(xing)(xing)(xing)也很重(zhong)要(yao)。假如薄(bo)厚不(bu)勻(yun)，縮(suo)(suo)小后會(hui)導(dao)(dao)致一(yi)面裂(lie)(lie)斷、一(yi)面堆膠(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)層(ceng)表層(ceng)出現的(de)浮(fu)銹也是危(wei)害性(xing)(xing)(xing)(xing)(xing)能(neng)品質的(de)關鍵要(yao)素。
２）高(gao)壓(ya)(ya)膠(jiao)管(guan)關(guan)鍵借助提高(gao)層(ceng)來承(cheng)受力。手(shou)工(gong)編織橡膠(jiao)軟(ruan)管(guan)是靠膠(jiao)漿與內外黏膠(jiao)粘緊，因為同一(yi)手(shou)工(gong)編織層(ceng)內不(bu)(bu)銹鋼(gang)絲中間的互相觸(chu)碰，在承(cheng)擔(dan)(dan)(dan)氣體(ti)壓(ya)(ya)力的時候會因分別伸(shen)縮式不(bu)(bu)一(yi)而(er)(er)(er)導致不(bu)(bu)銹鋼(gang)絲彼此之間的摩擦而(er)(er)(er)危害(hai)其(qi)使(shi)(shi)用(yong)性能。而(er)(er)(er)螺旋波紋管(guan)是由盤繞方位(wei)不(bu)(bu)一(yi)樣的雙層(ceng)產(chan)生一(yi)個工(gong)作中層(ceng)，在雙層(ceng)中間有正中間膠(jiao)，因而(er)(er)(er)同一(yi)工(gong)作中層(ceng)的雙層(ceng)不(bu)(bu)銹鋼(gang)絲中間沒有交接點。因此 不(bu)(bu)容易在承(cheng)擔(dan)(dan)(dan)氣體(ti)壓(ya)(ya)力時同于不(bu)(bu)銹鋼(gang)絲間的交叉式彎折而(er)(er)(er)產(chan)生應力或磨(mo)擦磨(mo)壞。故使(shi)(shi)用(yong)性能好，能承(cheng)擔(dan)(dan)(dan)髙壓(ya)(ya)。
３）高(gao)壓膠(jiao)管的(de)外膠(jiao)層粘在提高(gao)層上起維護功效，一般(ban)選用氯(lv)丁(ding)膠(jiao)。應(ying)留意(yi)避免(mian) 其脆化開裂而危害全部(bu)橡膠(jiao)軟管的(de)使用壽命。
