高壓膠管接頭總成構造(zao)和性(xing)能(neng)的關聯

１、橡膠軟管總成

1）高(gao)壓膠(jiao)(jiao)管由(you)內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)、提(ti)高(gao)層(ceng)(ceng)(ceng)(ceng)和外膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)構成（如圖例），內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)立即(ji)與(yu)液壓油(you)觸碰，故規(gui)定在(zai)(zai)(zai)長期性(xing)(xing)運(yun)行狀態下不(bu)可受(shou)液體浸(jin)蝕，能(neng)(neng)(neng)補漏。在(zai)(zai)(zai)提(ti)高(gao)層(ceng)(ceng)(ceng)(ceng)功(gong)效下會(hui)承(cheng)擔一定工作壓力。因而(er)，宜選用丁腈橡(xiang)(xiang)膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒外，危害(hai)性(xing)(xing)能(neng)(neng)(neng)的(de)(de)關鍵(jian)要素也有內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)的(de)(de)強度(du)(du)、薄厚(hou)和永(yong)久性(xing)(xing)形變(bian)量。強度(du)(du)和永(yong)久性(xing)(xing)形變(bian)量對密封(feng)性(xing)(xing)性(xing)(xing)能(neng)(neng)(neng)危害(hai)非常大。一般強度(du)(du)高(gao)、縮小(xiao)后的(de)(de)永(yong)久性(xing)(xing)形變(bian)量小(xiao)，密封(feng)性(xing)(xing)性(xing)(xing)能(neng)(neng)(neng)則越(yue)好(hao)。一般是在(zai)(zai)(zai)７０～８５邵(shao)氏硬(ying)度(du)(du)，縮小(xiao)永(yong)久性(xing)(xing)形變(bian)５０％時。內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)薄厚(hou)建(jian)議是為１．５～２．５ｍｍ，太厚(hou)會(hui)在(zai)(zai)(zai)壓扣時提(ti)升其流動率(lv)，導致不(bu)必要的(de)(de)膠(jiao)(jiao)在(zai)(zai)(zai)接(jie)頭芯套與(yu)橡(xiang)(xiang)膠(jiao)(jiao)軟管的(de)(de)觸碰內(nei)(nei)孔內(nei)(nei)沉積，減少(shao)商(shang)品(pin)流通橫截面(mian)；過薄會(hui)在(zai)(zai)(zai)壓扣時被(bei)壓裂(lie)。另外內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)壁厚(hou)勻(yun)稱性(xing)(xing)也很重要。假如薄厚(hou)不(bu)勻(yun)，縮小(xiao)后會(hui)導致一面(mian)裂(lie)斷、一面(mian)堆膠(jiao)(jiao)。內(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)(ceng)出(chu)現的(de)(de)浮銹也是危害(hai)性(xing)(xing)能(neng)(neng)(neng)品(pin)質的(de)(de)關鍵(jian)要素。

２）高壓膠(jiao)(jiao)管關鍵借助提(ti)高層(ceng)(ceng)來承(cheng)受力。手(shou)工編(bian)織(zhi)橡膠(jiao)(jiao)軟管是(shi)靠膠(jiao)(jiao)漿與(yu)內外黏膠(jiao)(jiao)粘緊，因(yin)為同(tong)一(yi)(yi)手(shou)工編(bian)織(zhi)層(ceng)(ceng)內不銹鋼絲(si)(si)中(zhong)(zhong)(zhong)間(jian)(jian)的(de)(de)互相觸碰，在承(cheng)擔(dan)氣體壓力的(de)(de)時候(hou)會(hui)因(yin)分別(bie)伸縮(suo)式不一(yi)(yi)而(er)導致不銹鋼絲(si)(si)彼此(ci)之間(jian)(jian)的(de)(de)摩擦(ca)而(er)危害其(qi)使(shi)用性能(neng)。而(er)螺旋(xuan)波紋管是(shi)由(you)盤繞方位不一(yi)(yi)樣的(de)(de)雙層(ceng)(ceng)產(chan)生一(yi)(yi)個工作中(zhong)(zhong)(zhong)層(ceng)(ceng)，在雙層(ceng)(ceng)中(zhong)(zhong)(zhong)間(jian)(jian)有正中(zhong)(zhong)(zhong)間(jian)(jian)膠(jiao)(jiao)，因(yin)而(er)同(tong)一(yi)(yi)工作中(zhong)(zhong)(zhong)層(ceng)(ceng)的(de)(de)雙層(ceng)(ceng)不銹鋼絲(si)(si)中(zhong)(zhong)(zhong)間(jian)(jian)沒有交(jiao)接(jie)點。因(yin)此(ci) 不容易在承(cheng)擔(dan)氣體壓力時同(tong)于不銹鋼絲(si)(si)間(jian)(jian)的(de)(de)交(jiao)叉式彎(wan)折而(er)產(chan)生應力或(huo)磨(mo)擦(ca)磨(mo)壞。故使(shi)用性能(neng)好，能(neng)承(cheng)擔(dan)髙(gao)壓。

３）高(gao)壓膠(jiao)(jiao)管的外膠(jiao)(jiao)層粘(zhan)在提(ti)高(gao)層上起維護功效(xiao)，一般選用(yong)(yong)氯(lv)丁膠(jiao)(jiao)。應留(liu)意(yi)避免 其脆化開裂而危害(hai)全部橡膠(jiao)(jiao)軟管的使(shi)用(yong)(yong)壽命(ming)。