高壓膠管接頭總成(cheng)構(gou)造(zao)和性能(neng)的關聯

１、橡膠軟管總成

1）高(gao)壓膠(jiao)(jiao)管由(you)內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)、提高(gao)層(ceng)(ceng)(ceng)和(he)外膠(jiao)(jiao)層(ceng)(ceng)(ceng)構成(cheng)（如(ru)圖例），內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)立即與液(ye)壓油觸(chu)碰，故(gu)規定在長期(qi)性(xing)(xing)(xing)運行(xing)狀(zhuang)態下不可受液(ye)體浸蝕，能(neng)補漏。在提高(gao)層(ceng)(ceng)(ceng)功效下會(hui)承擔(dan)一定工作壓力(li)。因而，宜選用(yong)丁腈(jing)橡膠(jiao)(jiao)，除塑膠(jiao)(jiao)粒(li)外，危害性(xing)(xing)(xing)能(neng)的(de)關(guan)鍵(jian)要(yao)(yao)素也有內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)的(de)強(qiang)度(du)(du)、薄厚(hou)和(he)永(yong)(yong)久(jiu)性(xing)(xing)(xing)形(xing)(xing)(xing)變量(liang)。強(qiang)度(du)(du)和(he)永(yong)(yong)久(jiu)性(xing)(xing)(xing)形(xing)(xing)(xing)變量(liang)對密(mi)封(feng)性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)危害非常大(da)。一般強(qiang)度(du)(du)高(gao)、縮(suo)小后(hou)的(de)永(yong)(yong)久(jiu)性(xing)(xing)(xing)形(xing)(xing)(xing)變量(liang)小，密(mi)封(feng)性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)則越好。一般是(shi)在７０～８５邵氏硬度(du)(du)，縮(suo)小永(yong)(yong)久(jiu)性(xing)(xing)(xing)形(xing)(xing)(xing)變５０％時(shi)。內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)薄厚(hou)建(jian)議是(shi)為１．５～２．５ｍｍ，太厚(hou)會(hui)在壓扣(kou)時(shi)提升其流動率，導(dao)致(zhi)不必(bi)要(yao)(yao)的(de)膠(jiao)(jiao)在接頭芯套與橡膠(jiao)(jiao)軟管的(de)觸(chu)碰內(nei)(nei)(nei)(nei)(nei)孔內(nei)(nei)(nei)(nei)(nei)沉積，減少商(shang)品(pin)流通橫截面；過薄會(hui)在壓扣(kou)時(shi)被壓裂(lie)。另外內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)壁厚(hou)勻稱性(xing)(xing)(xing)也很重要(yao)(yao)。假(jia)如(ru)薄厚(hou)不勻，縮(suo)小后(hou)會(hui)導(dao)致(zhi)一面裂(lie)斷、一面堆(dui)膠(jiao)(jiao)。內(nei)(nei)(nei)(nei)(nei)膠(jiao)(jiao)層(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)出(chu)現的(de)浮銹(xiu)也是(shi)危害性(xing)(xing)(xing)能(neng)品(pin)質的(de)關(guan)鍵(jian)要(yao)(yao)素。

２）高壓(ya)膠(jiao)管關(guan)鍵借助提高層(ceng)(ceng)來承(cheng)(cheng)受力(li)(li)。手(shou)(shou)工(gong)(gong)編織橡膠(jiao)軟管是(shi)靠(kao)膠(jiao)漿(jiang)與(yu)內外黏膠(jiao)粘緊，因(yin)為同(tong)一(yi)手(shou)(shou)工(gong)(gong)編織層(ceng)(ceng)內不(bu)銹(xiu)(xiu)鋼(gang)(gang)絲(si)(si)中(zhong)間(jian)的(de)互(hu)相觸(chu)碰，在(zai)(zai)承(cheng)(cheng)擔(dan)(dan)氣(qi)體壓(ya)力(li)(li)的(de)時(shi)(shi)候會因(yin)分別(bie)伸縮(suo)式不(bu)一(yi)而導致不(bu)銹(xiu)(xiu)鋼(gang)(gang)絲(si)(si)彼(bi)此之間(jian)的(de)摩擦(ca)而危害其使用(yong)性(xing)能(neng)。而螺旋波(bo)紋管是(shi)由盤繞方(fang)位不(bu)一(yi)樣的(de)雙層(ceng)(ceng)產生一(yi)個工(gong)(gong)作(zuo)中(zhong)層(ceng)(ceng)，在(zai)(zai)雙層(ceng)(ceng)中(zhong)間(jian)有(you)正中(zhong)間(jian)膠(jiao)，因(yin)而同(tong)一(yi)工(gong)(gong)作(zuo)中(zhong)層(ceng)(ceng)的(de)雙層(ceng)(ceng)不(bu)銹(xiu)(xiu)鋼(gang)(gang)絲(si)(si)中(zhong)間(jian)沒有(you)交(jiao)接點(dian)。因(yin)此 不(bu)容易在(zai)(zai)承(cheng)(cheng)擔(dan)(dan)氣(qi)體壓(ya)力(li)(li)時(shi)(shi)同(tong)于不(bu)銹(xiu)(xiu)鋼(gang)(gang)絲(si)(si)間(jian)的(de)交(jiao)叉(cha)式彎(wan)折而產生應力(li)(li)或磨擦(ca)磨壞(huai)。故使用(yong)性(xing)能(neng)好(hao)，能(neng)承(cheng)(cheng)擔(dan)(dan)髙壓(ya)。

３）高壓膠(jiao)(jiao)管的外(wai)膠(jiao)(jiao)層(ceng)(ceng)粘在提高層(ceng)(ceng)上起維(wei)護(hu)功效，一(yi)般選用氯丁膠(jiao)(jiao)。應留意避(bi)免 其脆(cui)化開裂而危害(hai)全部橡膠(jiao)(jiao)軟管的使用壽命。