高壓膠管接頭總(zong)成構造和性(xing)能的關(guan)聯

１、橡膠軟管總成

1）高壓(ya)膠(jiao)(jiao)(jiao)管(guan)由內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)、提(ti)高層(ceng)和外(wai)膠(jiao)(jiao)(jiao)層(ceng)構(gou)成(cheng)（如(ru)圖例），內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)立即(ji)與液(ye)壓(ya)油(you)觸(chu)碰(peng)，故規定在(zai)(zai)長期性(xing)(xing)(xing)運(yun)行狀態(tai)下不(bu)(bu)可受液(ye)體浸蝕，能(neng)補漏。在(zai)(zai)提(ti)高層(ceng)功效下會(hui)(hui)承擔一(yi)定工作(zuo)壓(ya)力。因而(er)，宜選用丁腈橡(xiang)膠(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)粒外(wai)，危害(hai)性(xing)(xing)(xing)能(neng)的(de)關鍵(jian)要素也(ye)有內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)的(de)強度(du)(du)、薄(bo)厚和永久性(xing)(xing)(xing)形變(bian)量。強度(du)(du)和永久性(xing)(xing)(xing)形變(bian)量對密封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)危害(hai)非常大。一(yi)般強度(du)(du)高、縮(suo)小后的(de)永久性(xing)(xing)(xing)形變(bian)量小，密封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)則(ze)越好。一(yi)般是(shi)在(zai)(zai)７０～８５邵(shao)氏硬度(du)(du)，縮(suo)小永久性(xing)(xing)(xing)形變(bian)５０％時(shi)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)薄(bo)厚建議是(shi)為１．５～２．５ｍｍ，太(tai)厚會(hui)(hui)在(zai)(zai)壓(ya)扣時(shi)提(ti)升其流動率，導(dao)致(zhi)不(bu)(bu)必要的(de)膠(jiao)(jiao)(jiao)在(zai)(zai)接(jie)頭芯套與橡(xiang)膠(jiao)(jiao)(jiao)軟管(guan)的(de)觸(chu)碰(peng)內(nei)(nei)(nei)孔(kong)內(nei)(nei)(nei)沉積，減(jian)少商品流通橫(heng)截面；過(guo)薄(bo)會(hui)(hui)在(zai)(zai)壓(ya)扣時(shi)被壓(ya)裂。另外(wai)內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)壁厚勻(yun)稱性(xing)(xing)(xing)也(ye)很重要。假如(ru)薄(bo)厚不(bu)(bu)勻(yun)，縮(suo)小后會(hui)(hui)導(dao)致(zhi)一(yi)面裂斷、一(yi)面堆(dui)膠(jiao)(jiao)(jiao)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)表層(ceng)出(chu)現的(de)浮銹也(ye)是(shi)危害(hai)性(xing)(xing)(xing)能(neng)品質的(de)關鍵(jian)要素。

２）高壓膠管(guan)關鍵借(jie)助提高層來承(cheng)(cheng)(cheng)受(shou)力(li)。手(shou)工(gong)(gong)編(bian)織橡膠軟管(guan)是靠膠漿與(yu)內外(wai)黏膠粘緊，因(yin)為同一(yi)手(shou)工(gong)(gong)編(bian)織層內不(bu)銹鋼絲(si)(si)中(zhong)間(jian)的互相觸碰，在(zai)承(cheng)(cheng)(cheng)擔氣體壓力(li)的時(shi)(shi)候會因(yin)分別伸縮式不(bu)一(yi)而(er)(er)(er)(er)導(dao)致不(bu)銹鋼絲(si)(si)彼此(ci)(ci)之間(jian)的摩擦而(er)(er)(er)(er)危害其使(shi)用性能。而(er)(er)(er)(er)螺旋波紋管(guan)是由盤(pan)繞(rao)方位不(bu)一(yi)樣的雙(shuang)(shuang)層產生一(yi)個工(gong)(gong)作中(zhong)層，在(zai)雙(shuang)(shuang)層中(zhong)間(jian)有(you)正中(zhong)間(jian)膠，因(yin)而(er)(er)(er)(er)同一(yi)工(gong)(gong)作中(zhong)層的雙(shuang)(shuang)層不(bu)銹鋼絲(si)(si)中(zhong)間(jian)沒有(you)交接點。因(yin)此(ci)(ci) 不(bu)容易在(zai)承(cheng)(cheng)(cheng)擔氣體壓力(li)時(shi)(shi)同于不(bu)銹鋼絲(si)(si)間(jian)的交叉式彎折而(er)(er)(er)(er)產生應力(li)或(huo)磨(mo)擦磨(mo)壞。故使(shi)用性能好，能承(cheng)(cheng)(cheng)擔髙(gao)壓。

３）高壓(ya)膠管的(de)外膠層粘在(zai)提(ti)高層上起(qi)維護功效，一般選(xuan)用氯(lv)丁膠。應(ying)留意避免 其脆化開裂而危害(hai)全部橡膠軟(ruan)管的(de)使用壽命(ming)。