高壓膠管接頭總成構造和(he)性(xing)能(neng)的關聯

１、橡膠軟管總成

1）高(gao)壓膠(jiao)(jiao)(jiao)(jiao)(jiao)管由(you)內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)、提高(gao)層(ceng)(ceng)和外膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)構成（如圖例），內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)立即(ji)與(yu)(yu)液(ye)壓油(you)觸碰(peng)，故規定(ding)在(zai)長期性(xing)(xing)運行狀態(tai)下(xia)(xia)不可受液(ye)體浸蝕，能(neng)(neng)補漏。在(zai)提高(gao)層(ceng)(ceng)功(gong)效下(xia)(xia)會(hui)承擔一定(ding)工(gong)作壓力。因而，宜選(xuan)用丁腈(jing)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)(jiao)粒外，危(wei)害(hai)性(xing)(xing)能(neng)(neng)的(de)關(guan)鍵要素也有內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)的(de)強(qiang)度(du)、薄厚(hou)和永(yong)久性(xing)(xing)形變量(liang)。強(qiang)度(du)和永(yong)久性(xing)(xing)形變量(liang)對密(mi)封性(xing)(xing)性(xing)(xing)能(neng)(neng)危(wei)害(hai)非常大。一般強(qiang)度(du)高(gao)、縮小后(hou)的(de)永(yong)久性(xing)(xing)形變量(liang)小，密(mi)封性(xing)(xing)性(xing)(xing)能(neng)(neng)則越好(hao)。一般是在(zai)７０～８５邵氏硬度(du)，縮小永(yong)久性(xing)(xing)形變５０％時(shi)。內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)薄厚(hou)建議是為１．５～２．５ｍｍ，太厚(hou)會(hui)在(zai)壓扣時(shi)提升其流(liu)動率，導致(zhi)不必要的(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)接頭芯套(tao)與(yu)(yu)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)(jiao)軟管的(de)觸碰(peng)內孔內沉(chen)積，減少商品(pin)流(liu)通橫截面；過薄會(hui)在(zai)壓扣時(shi)被壓裂。另外內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)壁厚(hou)勻稱性(xing)(xing)也很重(zhong)要。假如薄厚(hou)不勻，縮小后(hou)會(hui)導致(zhi)一面裂斷(duan)、一面堆膠(jiao)(jiao)(jiao)(jiao)(jiao)。內膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)表層(ceng)(ceng)出現的(de)浮銹也是危(wei)害(hai)性(xing)(xing)能(neng)(neng)品(pin)質的(de)關(guan)鍵要素。

２）高壓膠管(guan)(guan)關(guan)鍵借(jie)助提高層(ceng)來承(cheng)受力。手(shou)工(gong)(gong)編(bian)織(zhi)橡膠軟管(guan)(guan)是靠(kao)膠漿與內外(wai)黏膠粘(zhan)緊，因為同(tong)一(yi)手(shou)工(gong)(gong)編(bian)織(zhi)層(ceng)內不(bu)(bu)(bu)銹(xiu)鋼(gang)絲中(zhong)間(jian)(jian)的(de)互相(xiang)觸(chu)碰，在承(cheng)擔氣(qi)體壓力的(de)時候會因分別(bie)伸(shen)縮(suo)式(shi)不(bu)(bu)(bu)一(yi)而導致(zhi)不(bu)(bu)(bu)銹(xiu)鋼(gang)絲彼(bi)此(ci)(ci)之間(jian)(jian)的(de)摩(mo)擦(ca)而危害其(qi)使用性(xing)能(neng)。而螺(luo)旋(xuan)波紋管(guan)(guan)是由盤繞方位(wei)不(bu)(bu)(bu)一(yi)樣的(de)雙層(ceng)產(chan)生(sheng)(sheng)一(yi)個工(gong)(gong)作中(zhong)層(ceng)，在雙層(ceng)中(zhong)間(jian)(jian)有正(zheng)中(zhong)間(jian)(jian)膠，因而同(tong)一(yi)工(gong)(gong)作中(zhong)層(ceng)的(de)雙層(ceng)不(bu)(bu)(bu)銹(xiu)鋼(gang)絲中(zhong)間(jian)(jian)沒有交(jiao)接點(dian)。因此(ci)(ci) 不(bu)(bu)(bu)容易(yi)在承(cheng)擔氣(qi)體壓力時同(tong)于不(bu)(bu)(bu)銹(xiu)鋼(gang)絲間(jian)(jian)的(de)交(jiao)叉式(shi)彎(wan)折而產(chan)生(sheng)(sheng)應力或(huo)磨(mo)擦(ca)磨(mo)壞。故使用性(xing)能(neng)好，能(neng)承(cheng)擔髙壓。

３）高(gao)壓膠(jiao)管的外膠(jiao)層(ceng)粘在提高(gao)層(ceng)上起維護功效，一般選用(yong)氯(lv)丁膠(jiao)。應(ying)留(liu)意避免 其(qi)脆(cui)化(hua)開裂(lie)而危害全部橡膠(jiao)軟管的使用(yong)壽命。