高壓膠管接頭總成(cheng)構造和(he)性能的關(guan)聯

１、橡膠軟管總成

1）高(gao)壓(ya)膠(jiao)(jiao)(jiao)(jiao)(jiao)管由內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)、提(ti)高(gao)層(ceng)(ceng)(ceng)和外(wai)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)構成（如(ru)圖例），內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)立即與液(ye)壓(ya)油(you)觸(chu)碰(peng)，故規定(ding)在(zai)長期性(xing)(xing)(xing)(xing)運(yun)行狀(zhuang)態下不可受液(ye)體浸蝕，能(neng)(neng)補漏(lou)。在(zai)提(ti)高(gao)層(ceng)(ceng)(ceng)功效下會承擔一(yi)定(ding)工作壓(ya)力。因而(er)，宜選(xuan)用丁腈橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)，除(chu)塑(su)膠(jiao)(jiao)(jiao)(jiao)(jiao)粒外(wai)，危(wei)害(hai)(hai)性(xing)(xing)(xing)(xing)能(neng)(neng)的(de)(de)關(guan)(guan)鍵(jian)要(yao)素也(ye)(ye)有內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)的(de)(de)強度(du)、薄厚和永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形變(bian)(bian)量。強度(du)和永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形變(bian)(bian)量對密封(feng)性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)(neng)危(wei)害(hai)(hai)非常大。一(yi)般(ban)強度(du)高(gao)、縮小后的(de)(de)永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形變(bian)(bian)量小，密封(feng)性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)(neng)則越好(hao)。一(yi)般(ban)是(shi)在(zai)７０～８５邵氏硬度(du)，縮小永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形變(bian)(bian)５０％時。內(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)薄厚建(jian)議是(shi)為１．５～２．５ｍｍ，太厚會在(zai)壓(ya)扣時提(ti)升(sheng)其流(liu)動率，導致(zhi)不必(bi)要(yao)的(de)(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)接頭芯套與橡(xiang)(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)軟(ruan)管的(de)(de)觸(chu)碰(peng)內(nei)(nei)孔內(nei)(nei)沉積，減少(shao)商(shang)品(pin)(pin)流(liu)通橫截面；過(guo)薄會在(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(bi)厚勻(yun)稱性(xing)(xing)(xing)(xing)也(ye)(ye)很(hen)重要(yao)。假如(ru)薄厚不勻(yun)，縮小后會導致(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)(de)浮銹(xiu)也(ye)(ye)是(shi)危(wei)害(hai)(hai)性(xing)(xing)(xing)(xing)能(neng)(neng)品(pin)(pin)質的(de)(de)關(guan)(guan)鍵(jian)要(yao)素。

２）高(gao)壓(ya)膠(jiao)(jiao)(jiao)管關鍵借助提(ti)高(gao)層(ceng)來承(cheng)受力(li)(li)。手工(gong)編織橡膠(jiao)(jiao)(jiao)軟管是靠膠(jiao)(jiao)(jiao)漿與內外黏膠(jiao)(jiao)(jiao)粘緊，因(yin)為同(tong)(tong)一(yi)手工(gong)編織層(ceng)內不(bu)(bu)銹鋼絲(si)中(zhong)(zhong)間的(de)互相觸碰(peng)，在承(cheng)擔氣(qi)(qi)體壓(ya)力(li)(li)的(de)時(shi)候(hou)會因(yin)分別伸縮式不(bu)(bu)一(yi)而(er)導致(zhi)不(bu)(bu)銹鋼絲(si)彼(bi)此之(zhi)間的(de)摩擦(ca)而(er)危害其使(shi)(shi)用性(xing)能。而(er)螺旋波(bo)紋管是由盤繞方位不(bu)(bu)一(yi)樣(yang)的(de)雙層(ceng)產生(sheng)一(yi)個工(gong)作(zuo)中(zhong)(zhong)層(ceng)，在雙層(ceng)中(zhong)(zhong)間有(you)正中(zhong)(zhong)間膠(jiao)(jiao)(jiao)，因(yin)而(er)同(tong)(tong)一(yi)工(gong)作(zuo)中(zhong)(zhong)層(ceng)的(de)雙層(ceng)不(bu)(bu)銹鋼絲(si)中(zhong)(zhong)間沒(mei)有(you)交接點。因(yin)此 不(bu)(bu)容易在承(cheng)擔氣(qi)(qi)體壓(ya)力(li)(li)時(shi)同(tong)(tong)于(yu)不(bu)(bu)銹鋼絲(si)間的(de)交叉式彎折(zhe)而(er)產生(sheng)應力(li)(li)或磨擦(ca)磨壞。故使(shi)(shi)用性(xing)能好，能承(cheng)擔髙壓(ya)。

３）高(gao)壓膠(jiao)管的外膠(jiao)層粘在提(ti)高(gao)層上起(qi)維護(hu)功效，一般選用(yong)氯丁膠(jiao)。應留意避(bi)免 其脆化開裂(lie)而(er)危害全部橡膠(jiao)軟管的使(shi)用(yong)壽命。