１、橡膠軟管總成
1）高壓(ya)(ya)膠(jiao)(jiao)管由內(nei)(nei)膠(jiao)(jiao)層(ceng)、提高層(ceng)和外膠(jiao)(jiao)層(ceng)構(gou)成（如(ru)圖(tu)例），內(nei)(nei)膠(jiao)(jiao)層(ceng)立即(ji)與(yu)液壓(ya)(ya)油觸碰(peng)(peng)，故(gu)規定在長期(qi)性(xing)(xing)(xing)(xing)(xing)運行狀態(tai)下(xia)不可受液體浸蝕，能(neng)補漏。在提高層(ceng)功效下(xia)會(hui)承(cheng)擔(dan)一(yi)定工作壓(ya)(ya)力(li)。因而，宜選用丁腈橡膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒外，危(wei)(wei)害(hai)性(xing)(xing)(xing)(xing)(xing)能(neng)的(de)關鍵(jian)要(yao)(yao)素也(ye)有內(nei)(nei)膠(jiao)(jiao)層(ceng)的(de)強度(du)、薄(bo)(bo)(bo)(bo)厚和永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量。強度(du)和永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量對(dui)密封性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)危(wei)(wei)害(hai)非常大。一(yi)般(ban)強度(du)高、縮小后(hou)的(de)永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變量小，密封性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)則越好。一(yi)般(ban)是在７０～８５邵氏硬度(du)，縮小永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)變５０％時(shi)。內(nei)(nei)膠(jiao)(jiao)層(ceng)薄(bo)(bo)(bo)(bo)厚建議(yi)是為１．５～２．５ｍｍ，太(tai)厚會(hui)在壓(ya)(ya)扣時(shi)提升其流動(dong)率，導致不必要(yao)(yao)的(de)膠(jiao)(jiao)在接(jie)頭芯套與(yu)橡膠(jiao)(jiao)軟管的(de)觸碰(peng)(peng)內(nei)(nei)孔(kong)內(nei)(nei)沉積，減少商品流通(tong)橫(heng)截(jie)面；過薄(bo)(bo)(bo)(bo)會(hui)在壓(ya)(ya)扣時(shi)被壓(ya)(ya)裂。另(ling)外內(nei)(nei)膠(jiao)(jiao)層(ceng)壁厚勻稱性(xing)(xing)(xing)(xing)(xing)也(ye)很重(zhong)要(yao)(yao)。假(jia)如(ru)薄(bo)(bo)(bo)(bo)厚不勻，縮小后(hou)會(hui)導致一(yi)面裂斷、一(yi)面堆(dui)膠(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)層(ceng)表層(ceng)出現的(de)浮銹也(ye)是危(wei)(wei)害(hai)性(xing)(xing)(xing)(xing)(xing)能(neng)品質的(de)關鍵(jian)要(yao)(yao)素。
２）高(gao)壓(ya)(ya)膠管關鍵借助提高(gao)層(ceng)(ceng)(ceng)(ceng)來承受(shou)力。手(shou)工編織(zhi)橡膠軟管是靠膠漿與內(nei)外黏膠粘緊，因(yin)(yin)為同(tong)一手(shou)工編織(zhi)層(ceng)(ceng)(ceng)(ceng)內(nei)不(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)絲中(zhong)間的(de)互相(xiang)觸碰，在(zai)承擔(dan)氣體壓(ya)(ya)力的(de)時候會(hui)因(yin)(yin)分別(bie)伸縮(suo)式(shi)不(bu)一而(er)(er)(er)導致(zhi)不(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)絲彼(bi)此之間的(de)摩擦(ca)而(er)(er)(er)危(wei)害其(qi)使用性能。而(er)(er)(er)螺旋(xuan)波(bo)紋管是由盤繞方位不(bu)一樣(yang)的(de)雙(shuang)層(ceng)(ceng)(ceng)(ceng)產生一個工作中(zhong)層(ceng)(ceng)(ceng)(ceng)，在(zai)雙(shuang)層(ceng)(ceng)(ceng)(ceng)中(zhong)間有正(zheng)中(zhong)間膠，因(yin)(yin)而(er)(er)(er)同(tong)一工作中(zhong)層(ceng)(ceng)(ceng)(ceng)的(de)雙(shuang)層(ceng)(ceng)(ceng)(ceng)不(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)絲中(zhong)間沒有交接點(dian)。因(yin)(yin)此 不(bu)容易在(zai)承擔(dan)氣體壓(ya)(ya)力時同(tong)于不(bu)銹(xiu)(xiu)鋼(gang)(gang)(gang)絲間的(de)交叉式(shi)彎折而(er)(er)(er)產生應力或磨(mo)擦(ca)磨(mo)壞(huai)。故使用性能好，能承擔(dan)髙壓(ya)(ya)。
３）高壓膠管的外膠層粘(zhan)在(zai)提高層上(shang)起維護功(gong)效，一(yi)般(ban)選用(yong)(yong)氯丁膠。應留意避免 其脆化開(kai)裂而危害(hai)全部橡膠軟管的使用(yong)(yong)壽命。
