１、橡膠軟管總成
1）高壓(ya)膠(jiao)(jiao)管(guan)由內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)、提(ti)高層(ceng)(ceng)和外膠(jiao)(jiao)層(ceng)(ceng)構成（如圖例），內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)立即與液壓(ya)油觸碰，故(gu)規(gui)定在(zai)長(chang)期性(xing)(xing)(xing)(xing)運(yun)行狀態(tai)下不(bu)(bu)可(ke)受液體浸蝕(shi)，能(neng)補漏。在(zai)提(ti)高層(ceng)(ceng)功效下會(hui)(hui)承擔一(yi)定工作壓(ya)力。因(yin)而(er)，宜選用丁(ding)腈橡(xiang)膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒外，危害性(xing)(xing)(xing)(xing)能(neng)的(de)關(guan)鍵要素(su)也有內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)的(de)強(qiang)度、薄(bo)厚(hou)(hou)(hou)和永久性(xing)(xing)(xing)(xing)形(xing)變(bian)(bian)量。強(qiang)度和永久性(xing)(xing)(xing)(xing)形(xing)變(bian)(bian)量對密封性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)危害非常大。一(yi)般(ban)強(qiang)度高、縮(suo)小后的(de)永久性(xing)(xing)(xing)(xing)形(xing)變(bian)(bian)量小，密封性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)則越好。一(yi)般(ban)是在(zai)７０～８５邵氏硬度，縮(suo)小永久性(xing)(xing)(xing)(xing)形(xing)變(bian)(bian)５０％時。內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)薄(bo)厚(hou)(hou)(hou)建議是為１．５～２．５ｍｍ，太(tai)厚(hou)(hou)(hou)會(hui)(hui)在(zai)壓(ya)扣時提(ti)升其流動率(lv)，導(dao)致不(bu)(bu)必要的(de)膠(jiao)(jiao)在(zai)接頭芯(xin)套與橡(xiang)膠(jiao)(jiao)軟管(guan)的(de)觸碰內(nei)(nei)(nei)孔(kong)內(nei)(nei)(nei)沉積(ji)，減少商品(pin)流通(tong)橫截面；過薄(bo)會(hui)(hui)在(zai)壓(ya)扣時被壓(ya)裂。另外內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)壁厚(hou)(hou)(hou)勻(yun)稱(cheng)性(xing)(xing)(xing)(xing)也很重(zhong)要。假(jia)如薄(bo)厚(hou)(hou)(hou)不(bu)(bu)勻(yun)，縮(suo)小后會(hui)(hui)導(dao)致一(yi)面裂斷、一(yi)面堆膠(jiao)(jiao)。內(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)表層(ceng)(ceng)出現的(de)浮(fu)銹也是危害性(xing)(xing)(xing)(xing)能(neng)品(pin)質的(de)關(guan)鍵要素(su)。
２）高(gao)(gao)壓膠管(guan)關(guan)鍵借助(zhu)提高(gao)(gao)層(ceng)(ceng)來承受力(li)。手工(gong)(gong)編(bian)織橡膠軟管(guan)是靠膠漿(jiang)與內外黏膠粘緊，因為同(tong)一手工(gong)(gong)編(bian)織層(ceng)(ceng)內不(bu)(bu)(bu)(bu)銹(xiu)鋼(gang)絲中(zhong)間(jian)的(de)(de)(de)互相觸(chu)碰，在承擔(dan)氣體壓力(li)的(de)(de)(de)時候會(hui)因分別伸縮式不(bu)(bu)(bu)(bu)一而(er)導致不(bu)(bu)(bu)(bu)銹(xiu)鋼(gang)絲彼此之間(jian)的(de)(de)(de)摩擦而(er)危(wei)害其使(shi)用(yong)性能。而(er)螺(luo)旋波紋管(guan)是由(you)盤繞方位不(bu)(bu)(bu)(bu)一樣的(de)(de)(de)雙層(ceng)(ceng)產(chan)生(sheng)一個工(gong)(gong)作(zuo)中(zhong)層(ceng)(ceng)，在雙層(ceng)(ceng)中(zhong)間(jian)有(you)正中(zhong)間(jian)膠，因而(er)同(tong)一工(gong)(gong)作(zuo)中(zhong)層(ceng)(ceng)的(de)(de)(de)雙層(ceng)(ceng)不(bu)(bu)(bu)(bu)銹(xiu)鋼(gang)絲中(zhong)間(jian)沒有(you)交接(jie)點。因此 不(bu)(bu)(bu)(bu)容易在承擔(dan)氣體壓力(li)時同(tong)于不(bu)(bu)(bu)(bu)銹(xiu)鋼(gang)絲間(jian)的(de)(de)(de)交叉式彎折而(er)產(chan)生(sheng)應力(li)或磨(mo)擦磨(mo)壞。故(gu)使(shi)用(yong)性能好，能承擔(dan)髙壓。
３）高壓膠(jiao)(jiao)管(guan)的外膠(jiao)(jiao)層粘在(zai)提高層上起(qi)維護功效(xiao)，一般選用氯丁膠(jiao)(jiao)。應(ying)留意避免(mian) 其脆化開裂而危害(hai)全部橡膠(jiao)(jiao)軟(ruan)管(guan)的使用壽命。
