１、橡膠軟管總成
1）高(gao)壓(ya)(ya)膠(jiao)(jiao)管由(you)內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)、提(ti)(ti)(ti)高(gao)層(ceng)(ceng)(ceng)和(he)外膠(jiao)(jiao)層(ceng)(ceng)(ceng)構成（如(ru)(ru)圖例），內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)立即與液壓(ya)(ya)油觸碰(peng)，故規定在(zai)長期性(xing)(xing)(xing)運行(xing)狀(zhuang)態下(xia)不可(ke)受液體(ti)浸(jin)蝕(shi)，能(neng)(neng)(neng)補漏。在(zai)提(ti)(ti)(ti)高(gao)層(ceng)(ceng)(ceng)功效下(xia)會承擔一定工作壓(ya)(ya)力。因(yin)而，宜選用丁腈橡膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒外，危(wei)害(hai)性(xing)(xing)(xing)能(neng)(neng)(neng)的(de)關(guan)鍵要(yao)(yao)素也有內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)的(de)強度、薄厚(hou)和(he)永(yong)久性(xing)(xing)(xing)形變(bian)(bian)量。強度和(he)永(yong)久性(xing)(xing)(xing)形變(bian)(bian)量對密(mi)封(feng)性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)(neng)(neng)危(wei)害(hai)非常大。一般強度高(gao)、縮(suo)(suo)小(xiao)后的(de)永(yong)久性(xing)(xing)(xing)形變(bian)(bian)量小(xiao)，密(mi)封(feng)性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)(neng)(neng)則越好。一般是在(zai)７０～８５邵(shao)氏硬度，縮(suo)(suo)小(xiao)永(yong)久性(xing)(xing)(xing)形變(bian)(bian)５０％時。內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)薄厚(hou)建議(yi)是為１．５～２．５ｍｍ，太厚(hou)會在(zai)壓(ya)(ya)扣時提(ti)(ti)(ti)升其流(liu)動率，導(dao)致不必(bi)要(yao)(yao)的(de)膠(jiao)(jiao)在(zai)接頭芯套與橡膠(jiao)(jiao)軟管的(de)觸碰(peng)內(nei)(nei)孔內(nei)(nei)沉積，減少商品(pin)流(liu)通(tong)橫截面；過薄會在(zai)壓(ya)(ya)扣時被壓(ya)(ya)裂。另外內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)壁厚(hou)勻稱性(xing)(xing)(xing)也很重(zhong)要(yao)(yao)。假(jia)如(ru)(ru)薄厚(hou)不勻，縮(suo)(suo)小(xiao)后會導(dao)致一面裂斷、一面堆膠(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)出現(xian)的(de)浮銹也是危(wei)害(hai)性(xing)(xing)(xing)能(neng)(neng)(neng)品(pin)質的(de)關(guan)鍵要(yao)(yao)素。
２）高壓(ya)膠(jiao)管關鍵借助提高層來承(cheng)受力(li)。手(shou)工(gong)編(bian)織橡膠(jiao)軟管是(shi)靠膠(jiao)漿(jiang)與內外黏膠(jiao)粘緊，因(yin)為同(tong)一(yi)手(shou)工(gong)編(bian)織層內不(bu)(bu)銹(xiu)鋼絲(si)中(zhong)(zhong)間(jian)的(de)互相觸碰，在承(cheng)擔氣體(ti)壓(ya)力(li)的(de)時候(hou)會因(yin)分別伸(shen)縮式不(bu)(bu)一(yi)而(er)導致不(bu)(bu)銹(xiu)鋼絲(si)彼此(ci)之間(jian)的(de)摩擦而(er)危害其使用(yong)性能。而(er)螺(luo)旋波紋(wen)管是(shi)由盤繞方位不(bu)(bu)一(yi)樣的(de)雙(shuang)層產生一(yi)個工(gong)作中(zhong)(zhong)層，在雙(shuang)層中(zhong)(zhong)間(jian)有(you)正中(zhong)(zhong)間(jian)膠(jiao)，因(yin)而(er)同(tong)一(yi)工(gong)作中(zhong)(zhong)層的(de)雙(shuang)層不(bu)(bu)銹(xiu)鋼絲(si)中(zhong)(zhong)間(jian)沒(mei)有(you)交接點。因(yin)此(ci) 不(bu)(bu)容易(yi)在承(cheng)擔氣體(ti)壓(ya)力(li)時同(tong)于不(bu)(bu)銹(xiu)鋼絲(si)間(jian)的(de)交叉式彎折而(er)產生應力(li)或磨(mo)擦磨(mo)壞。故(gu)使用(yong)性能好(hao)，能承(cheng)擔髙壓(ya)。
３）高壓膠(jiao)管的(de)外膠(jiao)層粘(zhan)在提高層上起維護功效，一般(ban)選用氯丁膠(jiao)。應留意(yi)避(bi)免 其脆化開裂而(er)危害全部橡膠(jiao)軟管的(de)使(shi)用壽(shou)命。
