１、橡膠軟管總成
1）高壓(ya)(ya)(ya)膠(jiao)(jiao)(jiao)(jiao)管(guan)(guan)由內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)、提高層(ceng)(ceng)(ceng)(ceng)和外膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)構成（如圖例(li)），內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)立即與液壓(ya)(ya)(ya)油觸碰(peng)，故規定(ding)在(zai)長期(qi)性運(yun)行(xing)狀態(tai)下不可(ke)受液體(ti)浸蝕，能(neng)補漏。在(zai)提高層(ceng)(ceng)(ceng)(ceng)功(gong)效下會(hui)(hui)承擔一定(ding)工作壓(ya)(ya)(ya)力。因(yin)而，宜(yi)選用丁(ding)腈橡(xiang)膠(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)粒外，危害性能(neng)的(de)關(guan)鍵(jian)要(yao)(yao)素也(ye)有內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)的(de)強度、薄厚(hou)和永久(jiu)性形(xing)變(bian)(bian)量。強度和永久(jiu)性形(xing)變(bian)(bian)量對密封(feng)性性能(neng)危害非常(chang)大。一般強度高、縮小(xiao)后的(de)永久(jiu)性形(xing)變(bian)(bian)量小(xiao)，密封(feng)性性能(neng)則(ze)越好。一般是在(zai)７０～８５邵氏硬度，縮小(xiao)永久(jiu)性形(xing)變(bian)(bian)５０％時。內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)薄厚(hou)建議(yi)是為１．５～２．５ｍｍ，太厚(hou)會(hui)(hui)在(zai)壓(ya)(ya)(ya)扣(kou)時提升其流動(dong)率，導致不必要(yao)(yao)的(de)膠(jiao)(jiao)(jiao)(jiao)在(zai)接頭(tou)芯套與橡(xiang)膠(jiao)(jiao)(jiao)(jiao)軟管(guan)(guan)的(de)觸碰(peng)內(nei)(nei)孔內(nei)(nei)沉積，減少商品(pin)流通橫截面；過薄會(hui)(hui)在(zai)壓(ya)(ya)(ya)扣(kou)時被(bei)壓(ya)(ya)(ya)裂(lie)(lie)。另外內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)壁厚(hou)勻(yun)稱(cheng)性也(ye)很重要(yao)(yao)。假(jia)如薄厚(hou)不勻(yun)，縮小(xiao)后會(hui)(hui)導致一面裂(lie)(lie)斷、一面堆膠(jiao)(jiao)(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)(ceng)出現的(de)浮銹(xiu)也(ye)是危害性能(neng)品(pin)質的(de)關(guan)鍵(jian)要(yao)(yao)素。
２）高壓膠管關鍵借助(zhu)提高層(ceng)來承(cheng)受力(li)。手工(gong)編(bian)織橡膠軟管是(shi)靠膠漿與內(nei)外黏膠粘緊，因為同一手工(gong)編(bian)織層(ceng)內(nei)不(bu)(bu)(bu)銹鋼絲(si)中(zhong)間(jian)的(de)互相觸碰，在承(cheng)擔氣(qi)(qi)體壓力(li)的(de)時(shi)候(hou)會因分別伸縮式(shi)不(bu)(bu)(bu)一而導致不(bu)(bu)(bu)銹鋼絲(si)彼此(ci)之間(jian)的(de)摩擦而危害其使(shi)用性能。而螺旋波(bo)紋管是(shi)由盤繞方位不(bu)(bu)(bu)一樣(yang)的(de)雙層(ceng)產生(sheng)一個工(gong)作中(zhong)層(ceng)，在雙層(ceng)中(zhong)間(jian)有(you)正中(zhong)間(jian)膠，因而同一工(gong)作中(zhong)層(ceng)的(de)雙層(ceng)不(bu)(bu)(bu)銹鋼絲(si)中(zhong)間(jian)沒有(you)交(jiao)接點。因此(ci) 不(bu)(bu)(bu)容(rong)易在承(cheng)擔氣(qi)(qi)體壓力(li)時(shi)同于(yu)不(bu)(bu)(bu)銹鋼絲(si)間(jian)的(de)交(jiao)叉式(shi)彎(wan)折而產生(sheng)應(ying)力(li)或磨(mo)擦磨(mo)壞。故使(shi)用性能好，能承(cheng)擔髙壓。
３）高壓膠(jiao)管的外(wai)膠(jiao)層(ceng)粘在提高層(ceng)上起維護功效，一(yi)般選用氯丁(ding)膠(jiao)。應留意避免 其脆(cui)化開(kai)裂而危(wei)害(hai)全(quan)部橡膠(jiao)軟管的使用壽命。
