高壓膠管接頭總成構造(zao)和性能(neng)的關聯(lian)

１、橡膠軟管總成

1）高(gao)壓(ya)膠(jiao)管由(you)內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)、提(ti)高(gao)層(ceng)(ceng)和(he)外(wai)(wai)膠(jiao)層(ceng)(ceng)構成（如(ru)圖例(li)），內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)立即與液壓(ya)油觸(chu)碰(peng)，故規(gui)定在(zai)長期性(xing)運行狀(zhuang)態下不(bu)可受(shou)液體浸蝕，能(neng)(neng)補(bu)漏。在(zai)提(ti)高(gao)層(ceng)(ceng)功效下會(hui)承擔一定工作壓(ya)力。因而，宜選用丁腈橡膠(jiao)，除塑膠(jiao)粒外(wai)(wai)，危(wei)害(hai)性(xing)能(neng)(neng)的(de)(de)關鍵(jian)要(yao)(yao)(yao)素也有內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)的(de)(de)強(qiang)度、薄(bo)厚(hou)(hou)(hou)和(he)永久性(xing)形變量(liang)(liang)。強(qiang)度和(he)永久性(xing)形變量(liang)(liang)對(dui)密封性(xing)性(xing)能(neng)(neng)危(wei)害(hai)非常大。一般強(qiang)度高(gao)、縮(suo)小(xiao)后的(de)(de)永久性(xing)形變量(liang)(liang)小(xiao)，密封性(xing)性(xing)能(neng)(neng)則越(yue)好(hao)。一般是(shi)在(zai)７０～８５邵(shao)氏硬度，縮(suo)小(xiao)永久性(xing)形變５０％時(shi)。內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)薄(bo)厚(hou)(hou)(hou)建議是(shi)為１．５～２．５ｍｍ，太厚(hou)(hou)(hou)會(hui)在(zai)壓(ya)扣時(shi)提(ti)升(sheng)其流動(dong)率，導致不(bu)必要(yao)(yao)(yao)的(de)(de)膠(jiao)在(zai)接頭(tou)芯套(tao)與橡膠(jiao)軟管的(de)(de)觸(chu)碰(peng)內(nei)(nei)(nei)(nei)(nei)孔內(nei)(nei)(nei)(nei)(nei)沉(chen)積(ji)，減少商品(pin)流通橫截(jie)面；過薄(bo)會(hui)在(zai)壓(ya)扣時(shi)被壓(ya)裂(lie)。另外(wai)(wai)內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)壁厚(hou)(hou)(hou)勻稱性(xing)也很重要(yao)(yao)(yao)。假如(ru)薄(bo)厚(hou)(hou)(hou)不(bu)勻，縮(suo)小(xiao)后會(hui)導致一面裂(lie)斷、一面堆膠(jiao)。內(nei)(nei)(nei)(nei)(nei)膠(jiao)層(ceng)(ceng)表層(ceng)(ceng)出現的(de)(de)浮銹也是(shi)危(wei)害(hai)性(xing)能(neng)(neng)品(pin)質(zhi)的(de)(de)關鍵(jian)要(yao)(yao)(yao)素。

２）高(gao)壓(ya)膠(jiao)(jiao)管(guan)關鍵(jian)借助(zhu)提(ti)高(gao)層(ceng)(ceng)來承(cheng)(cheng)受力(li)。手(shou)工(gong)(gong)編(bian)織(zhi)橡膠(jiao)(jiao)軟管(guan)是靠(kao)膠(jiao)(jiao)漿與內外黏膠(jiao)(jiao)粘緊(jin)，因(yin)(yin)為同(tong)一手(shou)工(gong)(gong)編(bian)織(zhi)層(ceng)(ceng)內不(bu)銹鋼(gang)(gang)絲(si)中(zhong)(zhong)(zhong)間(jian)(jian)的(de)互相觸碰，在(zai)承(cheng)(cheng)擔氣體(ti)壓(ya)力(li)的(de)時候會(hui)因(yin)(yin)分別伸縮式不(bu)一而導致不(bu)銹鋼(gang)(gang)絲(si)彼此之間(jian)(jian)的(de)摩(mo)擦(ca)而危害其使用性能(neng)(neng)。而螺(luo)旋波紋管(guan)是由盤繞方位不(bu)一樣(yang)的(de)雙(shuang)層(ceng)(ceng)產(chan)(chan)生一個(ge)工(gong)(gong)作(zuo)中(zhong)(zhong)(zhong)層(ceng)(ceng)，在(zai)雙(shuang)層(ceng)(ceng)中(zhong)(zhong)(zhong)間(jian)(jian)有(you)正(zheng)中(zhong)(zhong)(zhong)間(jian)(jian)膠(jiao)(jiao)，因(yin)(yin)而同(tong)一工(gong)(gong)作(zuo)中(zhong)(zhong)(zhong)層(ceng)(ceng)的(de)雙(shuang)層(ceng)(ceng)不(bu)銹鋼(gang)(gang)絲(si)中(zhong)(zhong)(zhong)間(jian)(jian)沒有(you)交(jiao)接(jie)點(dian)。因(yin)(yin)此 不(bu)容易在(zai)承(cheng)(cheng)擔氣體(ti)壓(ya)力(li)時同(tong)于(yu)不(bu)銹鋼(gang)(gang)絲(si)間(jian)(jian)的(de)交(jiao)叉式彎折而產(chan)(chan)生應力(li)或磨(mo)擦(ca)磨(mo)壞。故使用性能(neng)(neng)好，能(neng)(neng)承(cheng)(cheng)擔髙壓(ya)。

３）高壓(ya)膠(jiao)管的外膠(jiao)層(ceng)粘在提高層(ceng)上起維護功效，一(yi)般(ban)選用氯丁膠(jiao)。應留意避(bi)免 其脆化開裂(lie)而(er)危害全部橡(xiang)膠(jiao)軟管的使用壽(shou)命。