高壓膠管接頭總成構造(zao)和性(xing)能的(de)關聯

１、橡膠軟管總成

1）高(gao)(gao)壓(ya)膠(jiao)(jiao)(jiao)(jiao)管由內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)、提高(gao)(gao)層(ceng)(ceng)和(he)(he)外(wai)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)構成(cheng)（如(ru)圖例(li)），內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)立即與液壓(ya)油觸碰，故規定(ding)在(zai)長期性(xing)(xing)運行狀(zhuang)態下(xia)不(bu)(bu)可受液體(ti)浸蝕，能補漏。在(zai)提高(gao)(gao)層(ceng)(ceng)功效下(xia)會(hui)(hui)承擔一定(ding)工(gong)作壓(ya)力。因而，宜(yi)選用丁腈橡膠(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)粒(li)外(wai)，危(wei)害性(xing)(xing)能的(de)(de)關(guan)鍵(jian)要素(su)也(ye)有內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)的(de)(de)強度(du)、薄(bo)(bo)厚(hou)和(he)(he)永(yong)(yong)(yong)久(jiu)性(xing)(xing)形變(bian)(bian)量。強度(du)和(he)(he)永(yong)(yong)(yong)久(jiu)性(xing)(xing)形變(bian)(bian)量對密封性(xing)(xing)性(xing)(xing)能危(wei)害非(fei)常(chang)大。一般強度(du)高(gao)(gao)、縮(suo)小(xiao)后(hou)的(de)(de)永(yong)(yong)(yong)久(jiu)性(xing)(xing)形變(bian)(bian)量小(xiao)，密封性(xing)(xing)性(xing)(xing)能則越好。一般是在(zai)７０～８５邵氏硬度(du)，縮(suo)小(xiao)永(yong)(yong)(yong)久(jiu)性(xing)(xing)形變(bian)(bian)５０％時。內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)薄(bo)(bo)厚(hou)建議是為１．５～２．５ｍｍ，太厚(hou)會(hui)(hui)在(zai)壓(ya)扣時提升其流(liu)動率，導致不(bu)(bu)必要的(de)(de)膠(jiao)(jiao)(jiao)(jiao)在(zai)接(jie)頭芯套(tao)與橡膠(jiao)(jiao)(jiao)(jiao)軟管的(de)(de)觸碰內孔內沉(chen)積，減少(shao)商(shang)品(pin)(pin)流(liu)通(tong)橫截(jie)面；過薄(bo)(bo)會(hui)(hui)在(zai)壓(ya)扣時被壓(ya)裂。另外(wai)內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)壁(bi)厚(hou)勻(yun)稱性(xing)(xing)也(ye)很重要。假如(ru)薄(bo)(bo)厚(hou)不(bu)(bu)勻(yun)，縮(suo)小(xiao)后(hou)會(hui)(hui)導致一面裂斷、一面堆膠(jiao)(jiao)(jiao)(jiao)。內膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)表(biao)層(ceng)(ceng)出現的(de)(de)浮(fu)銹也(ye)是危(wei)害性(xing)(xing)能品(pin)(pin)質的(de)(de)關(guan)鍵(jian)要素(su)。

２）高(gao)壓(ya)膠(jiao)(jiao)管關(guan)鍵(jian)借助提高(gao)層(ceng)(ceng)來承受力(li)(li)。手工(gong)編(bian)織橡膠(jiao)(jiao)軟管是靠(kao)膠(jiao)(jiao)漿(jiang)與內(nei)外黏膠(jiao)(jiao)粘緊，因為同(tong)一手工(gong)編(bian)織層(ceng)(ceng)內(nei)不(bu)銹鋼(gang)(gang)絲中(zhong)間(jian)(jian)的(de)(de)(de)互相觸碰，在(zai)承擔氣體壓(ya)力(li)(li)的(de)(de)(de)時(shi)候(hou)會(hui)因分(fen)別伸(shen)縮式(shi)不(bu)一而(er)導致不(bu)銹鋼(gang)(gang)絲彼此(ci)之間(jian)(jian)的(de)(de)(de)摩(mo)擦而(er)危害(hai)其使用(yong)(yong)性能(neng)。而(er)螺旋波紋管是由盤(pan)繞(rao)方位(wei)不(bu)一樣(yang)的(de)(de)(de)雙層(ceng)(ceng)產(chan)生一個(ge)工(gong)作中(zhong)層(ceng)(ceng)，在(zai)雙層(ceng)(ceng)中(zhong)間(jian)(jian)有正中(zhong)間(jian)(jian)膠(jiao)(jiao)，因而(er)同(tong)一工(gong)作中(zhong)層(ceng)(ceng)的(de)(de)(de)雙層(ceng)(ceng)不(bu)銹鋼(gang)(gang)絲中(zhong)間(jian)(jian)沒有交(jiao)接點(dian)。因此(ci) 不(bu)容易在(zai)承擔氣體壓(ya)力(li)(li)時(shi)同(tong)于不(bu)銹鋼(gang)(gang)絲間(jian)(jian)的(de)(de)(de)交(jiao)叉(cha)式(shi)彎折而(er)產(chan)生應力(li)(li)或磨(mo)擦磨(mo)壞。故(gu)使用(yong)(yong)性能(neng)好，能(neng)承擔髙壓(ya)。

３）高(gao)壓膠管的外膠層粘(zhan)在提(ti)高(gao)層上起(qi)維護功效，一般選(xuan)用(yong)(yong)氯丁膠。應留(liu)意避(bi)免(mian) 其脆(cui)化開(kai)裂而危害全部橡膠軟(ruan)管的使(shi)用(yong)(yong)壽命(ming)。