１、橡膠軟管總成
1）高壓(ya)膠(jiao)(jiao)(jiao)(jiao)(jiao)管(guan)由內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)、提(ti)高層(ceng)(ceng)(ceng)和(he)(he)外(wai)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)構成（如(ru)(ru)圖(tu)例(li)），內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)立即與(yu)液壓(ya)油觸(chu)碰，故規定在(zai)長期性(xing)(xing)(xing)(xing)(xing)運行狀態下不可受液體浸蝕，能(neng)(neng)補漏。在(zai)提(ti)高層(ceng)(ceng)(ceng)功效下會(hui)承擔一(yi)定工作(zuo)壓(ya)力。因(yin)而，宜選用丁腈(jing)橡膠(jiao)(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)(jiao)粒外(wai)，危害性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)的(de)關(guan)鍵(jian)要(yao)(yao)素也(ye)有內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)的(de)強度(du)、薄(bo)厚和(he)(he)永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)(xing)(xing)變(bian)量(liang)。強度(du)和(he)(he)永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)(xing)(xing)變(bian)量(liang)對(dui)密(mi)封性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)危害非常大。一(yi)般強度(du)高、縮小(xiao)后的(de)永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)(xing)(xing)變(bian)量(liang)小(xiao)，密(mi)封性(xing)(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)則越好(hao)。一(yi)般是(shi)在(zai)７０～８５邵氏硬(ying)度(du)，縮小(xiao)永久(jiu)性(xing)(xing)(xing)(xing)(xing)形(xing)(xing)(xing)變(bian)５０％時。內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)薄(bo)厚建議是(shi)為(wei)１．５～２．５ｍｍ，太厚會(hui)在(zai)壓(ya)扣時提(ti)升(sheng)其流動率，導(dao)致(zhi)不必要(yao)(yao)的(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)接頭芯套與(yu)橡膠(jiao)(jiao)(jiao)(jiao)(jiao)軟管(guan)的(de)觸(chu)碰內(nei)(nei)孔內(nei)(nei)沉積，減少商品流通橫截面；過(guo)薄(bo)會(hui)在(zai)壓(ya)扣時被壓(ya)裂。另外(wai)內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)壁厚勻稱性(xing)(xing)(xing)(xing)(xing)也(ye)很重要(yao)(yao)。假如(ru)(ru)薄(bo)厚不勻，縮小(xiao)后會(hui)導(dao)致(zhi)一(yi)面裂斷、一(yi)面堆膠(jiao)(jiao)(jiao)(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)出現的(de)浮銹也(ye)是(shi)危害性(xing)(xing)(xing)(xing)(xing)能(neng)(neng)品質的(de)關(guan)鍵(jian)要(yao)(yao)素。
２）高壓(ya)膠管(guan)關鍵借助提高層(ceng)來承(cheng)受力。手(shou)工編(bian)織橡膠軟(ruan)管(guan)是(shi)靠(kao)膠漿(jiang)與內外黏膠粘緊，因(yin)為同一(yi)(yi)手(shou)工編(bian)織層(ceng)內不(bu)銹(xiu)鋼(gang)(gang)絲(si)(si)中(zhong)間(jian)(jian)的互相觸碰，在承(cheng)擔(dan)氣體壓(ya)力的時候會因(yin)分別(bie)伸縮式(shi)不(bu)一(yi)(yi)而導致不(bu)銹(xiu)鋼(gang)(gang)絲(si)(si)彼此(ci)(ci)之(zhi)間(jian)(jian)的摩擦(ca)而危害其使用(yong)性能(neng)。而螺旋波紋管(guan)是(shi)由盤繞方位不(bu)一(yi)(yi)樣的雙(shuang)層(ceng)產生一(yi)(yi)個(ge)工作(zuo)中(zhong)層(ceng)，在雙(shuang)層(ceng)中(zhong)間(jian)(jian)有正(zheng)中(zhong)間(jian)(jian)膠，因(yin)而同一(yi)(yi)工作(zuo)中(zhong)層(ceng)的雙(shuang)層(ceng)不(bu)銹(xiu)鋼(gang)(gang)絲(si)(si)中(zhong)間(jian)(jian)沒有交(jiao)接(jie)點。因(yin)此(ci)(ci) 不(bu)容易在承(cheng)擔(dan)氣體壓(ya)力時同于(yu)不(bu)銹(xiu)鋼(gang)(gang)絲(si)(si)間(jian)(jian)的交(jiao)叉式(shi)彎折而產生應力或(huo)磨擦(ca)磨壞。故使用(yong)性能(neng)好(hao)，能(neng)承(cheng)擔(dan)髙(gao)壓(ya)。
３）高壓膠(jiao)管的(de)外膠(jiao)層粘在提高層上(shang)起維(wei)護功效，一般選用(yong)氯丁膠(jiao)。應(ying)留意避免 其脆化開(kai)裂而危害全(quan)部橡(xiang)膠(jiao)軟管的(de)使用(yong)壽命。
