高壓膠管接頭總成構造(zao)和性能的關(guan)聯(lian)

１、橡膠軟管總成

1）高壓(ya)膠(jiao)(jiao)(jiao)(jiao)管由內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)、提高層(ceng)(ceng)和(he)外膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)構(gou)成（如圖(tu)例），內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)立(li)即與(yu)液(ye)壓(ya)油觸(chu)碰(peng)，故規定在長期性(xing)(xing)運(yun)行狀態(tai)下不可受液(ye)體浸蝕，能(neng)(neng)補漏(lou)。在提高層(ceng)(ceng)功效下會承擔一(yi)(yi)定工作壓(ya)力(li)。因而(er)，宜選(xuan)用丁(ding)腈橡膠(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)粒外，危害性(xing)(xing)能(neng)(neng)的(de)(de)(de)(de)關鍵要素也有(you)內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)的(de)(de)(de)(de)強(qiang)度(du)、薄(bo)(bo)(bo)厚(hou)和(he)永久性(xing)(xing)形(xing)變(bian)(bian)量。強(qiang)度(du)和(he)永久性(xing)(xing)形(xing)變(bian)(bian)量對密(mi)(mi)封(feng)性(xing)(xing)性(xing)(xing)能(neng)(neng)危害非常大。一(yi)(yi)般強(qiang)度(du)高、縮小(xiao)后的(de)(de)(de)(de)永久性(xing)(xing)形(xing)變(bian)(bian)量小(xiao)，密(mi)(mi)封(feng)性(xing)(xing)性(xing)(xing)能(neng)(neng)則越好。一(yi)(yi)般是在７０～８５邵氏硬度(du)，縮小(xiao)永久性(xing)(xing)形(xing)變(bian)(bian)５０％時。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)薄(bo)(bo)(bo)厚(hou)建議是為１．５～２．５ｍｍ，太厚(hou)會在壓(ya)扣時提升其流(liu)動(dong)率，導(dao)致不必要的(de)(de)(de)(de)膠(jiao)(jiao)(jiao)(jiao)在接頭芯套與(yu)橡膠(jiao)(jiao)(jiao)(jiao)軟管的(de)(de)(de)(de)觸(chu)碰(peng)內(nei)(nei)(nei)孔內(nei)(nei)(nei)沉(chen)積，減少商品流(liu)通橫截(jie)面；過薄(bo)(bo)(bo)會在壓(ya)扣時被壓(ya)裂。另外內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)壁厚(hou)勻(yun)稱性(xing)(xing)也很重要。假(jia)如薄(bo)(bo)(bo)厚(hou)不勻(yun)，縮小(xiao)后會導(dao)致一(yi)(yi)面裂斷(duan)、一(yi)(yi)面堆(dui)膠(jiao)(jiao)(jiao)(jiao)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)表(biao)層(ceng)(ceng)出(chu)現的(de)(de)(de)(de)浮銹(xiu)也是危害性(xing)(xing)能(neng)(neng)品質的(de)(de)(de)(de)關鍵要素。

２）高壓(ya)膠(jiao)(jiao)管(guan)關(guan)鍵借助提高層(ceng)來承(cheng)(cheng)受力(li)。手工(gong)編織橡膠(jiao)(jiao)軟管(guan)是(shi)(shi)靠膠(jiao)(jiao)漿(jiang)與內外黏(nian)膠(jiao)(jiao)粘緊，因(yin)(yin)為同(tong)(tong)(tong)一手工(gong)編織層(ceng)內不銹鋼(gang)絲中(zhong)(zhong)間的互相觸碰(peng)，在(zai)承(cheng)(cheng)擔氣(qi)體壓(ya)力(li)的時(shi)候會因(yin)(yin)分別伸縮式(shi)不一而導致不銹鋼(gang)絲彼此(ci)之間的摩擦而危(wei)害其使用性能。而螺旋波紋管(guan)是(shi)(shi)由盤繞方位不一樣(yang)的雙(shuang)層(ceng)產生一個工(gong)作中(zhong)(zhong)層(ceng)，在(zai)雙(shuang)層(ceng)中(zhong)(zhong)間有正中(zhong)(zhong)間膠(jiao)(jiao)，因(yin)(yin)而同(tong)(tong)(tong)一工(gong)作中(zhong)(zhong)層(ceng)的雙(shuang)層(ceng)不銹鋼(gang)絲中(zhong)(zhong)間沒(mei)有交接點(dian)。因(yin)(yin)此(ci) 不容(rong)易在(zai)承(cheng)(cheng)擔氣(qi)體壓(ya)力(li)時(shi)同(tong)(tong)(tong)于不銹鋼(gang)絲間的交叉式(shi)彎折而產生應力(li)或(huo)磨(mo)擦磨(mo)壞。故使用性能好，能承(cheng)(cheng)擔髙壓(ya)。

３）高壓膠(jiao)管的(de)外(wai)膠(jiao)層粘在提高層上起維護(hu)功效，一般選用(yong)氯丁膠(jiao)。應留(liu)意避(bi)免 其脆化開(kai)裂(lie)而危害全(quan)部橡膠(jiao)軟(ruan)管的(de)使用(yong)壽命。