１、橡膠軟管總成
1）高壓(ya)(ya)膠管由內(nei)膠層(ceng)(ceng)(ceng)(ceng)、提高層(ceng)(ceng)(ceng)(ceng)和外膠層(ceng)(ceng)(ceng)(ceng)構成（如圖例），內(nei)膠層(ceng)(ceng)(ceng)(ceng)立即與(yu)液壓(ya)(ya)油觸碰，故規定在(zai)長(chang)期性(xing)運(yun)行狀態下不(bu)可受液體浸蝕，能(neng)補漏。在(zai)提高層(ceng)(ceng)(ceng)(ceng)功效下會(hui)承(cheng)擔一(yi)(yi)定工作壓(ya)(ya)力。因而，宜(yi)選用丁腈橡膠，除(chu)塑膠粒外，危(wei)害性(xing)能(neng)的(de)(de)(de)(de)關(guan)鍵(jian)要素也(ye)(ye)有內(nei)膠層(ceng)(ceng)(ceng)(ceng)的(de)(de)(de)(de)強度、薄(bo)厚(hou)(hou)和永久(jiu)性(xing)形(xing)變量(liang)。強度和永久(jiu)性(xing)形(xing)變量(liang)對(dui)密(mi)封性(xing)性(xing)能(neng)危(wei)害非(fei)常大(da)。一(yi)(yi)般強度高、縮(suo)小后(hou)的(de)(de)(de)(de)永久(jiu)性(xing)形(xing)變量(liang)小，密(mi)封性(xing)性(xing)能(neng)則越好。一(yi)(yi)般是在(zai)７０～８５邵氏硬度，縮(suo)小永久(jiu)性(xing)形(xing)變５０％時(shi)(shi)。內(nei)膠層(ceng)(ceng)(ceng)(ceng)薄(bo)厚(hou)(hou)建議是為１．５～２．５ｍｍ，太厚(hou)(hou)會(hui)在(zai)壓(ya)(ya)扣(kou)時(shi)(shi)提升其流動率，導致不(bu)必要的(de)(de)(de)(de)膠在(zai)接(jie)頭芯(xin)套與(yu)橡膠軟管的(de)(de)(de)(de)觸碰內(nei)孔內(nei)沉積，減少商(shang)品流通橫截面；過薄(bo)會(hui)在(zai)壓(ya)(ya)扣(kou)時(shi)(shi)被壓(ya)(ya)裂。另外內(nei)膠層(ceng)(ceng)(ceng)(ceng)壁厚(hou)(hou)勻稱性(xing)也(ye)(ye)很(hen)重要。假如薄(bo)厚(hou)(hou)不(bu)勻，縮(suo)小后(hou)會(hui)導致一(yi)(yi)面裂斷、一(yi)(yi)面堆膠。內(nei)膠層(ceng)(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)(ceng)出現的(de)(de)(de)(de)浮銹也(ye)(ye)是危(wei)害性(xing)能(neng)品質的(de)(de)(de)(de)關(guan)鍵(jian)要素。
２）高(gao)壓膠(jiao)(jiao)(jiao)管(guan)關(guan)鍵借助提高(gao)層來承(cheng)受力(li)。手(shou)工編(bian)織橡膠(jiao)(jiao)(jiao)軟管(guan)是(shi)靠膠(jiao)(jiao)(jiao)漿(jiang)與內外黏(nian)膠(jiao)(jiao)(jiao)粘緊，因為同(tong)(tong)一手(shou)工編(bian)織層內不(bu)(bu)銹(xiu)(xiu)(xiu)鋼絲中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)的互相觸(chu)碰，在承(cheng)擔(dan)氣(qi)體壓力(li)的時候(hou)會因分別伸縮式(shi)不(bu)(bu)一而導致不(bu)(bu)銹(xiu)(xiu)(xiu)鋼絲彼此之間(jian)(jian)的摩擦(ca)而危害其使用性能(neng)(neng)。而螺旋波紋管(guan)是(shi)由(you)盤繞方(fang)位不(bu)(bu)一樣的雙層產生(sheng)一個(ge)工作中(zhong)(zhong)(zhong)(zhong)層，在雙層中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)有(you)正中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)膠(jiao)(jiao)(jiao)，因而同(tong)(tong)一工作中(zhong)(zhong)(zhong)(zhong)層的雙層不(bu)(bu)銹(xiu)(xiu)(xiu)鋼絲中(zhong)(zhong)(zhong)(zhong)間(jian)(jian)沒有(you)交(jiao)接點(dian)。因此 不(bu)(bu)容易在承(cheng)擔(dan)氣(qi)體壓力(li)時同(tong)(tong)于不(bu)(bu)銹(xiu)(xiu)(xiu)鋼絲間(jian)(jian)的交(jiao)叉式(shi)彎折而產生(sheng)應力(li)或磨擦(ca)磨壞。故(gu)使用性能(neng)(neng)好，能(neng)(neng)承(cheng)擔(dan)髙壓。
３）高(gao)壓(ya)膠(jiao)管的外膠(jiao)層(ceng)粘在提高(gao)層(ceng)上起維護功效，一般(ban)選用氯丁膠(jiao)。應留意避免 其(qi)脆(cui)化開裂(lie)而危害(hai)全部(bu)橡膠(jiao)軟管的使用壽(shou)命。
