高壓膠管接頭總成構造(zao)和(he)性能的關(guan)聯

１、橡膠軟管總成

1）高(gao)壓(ya)膠(jiao)(jiao)(jiao)(jiao)(jiao)管由內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)、提(ti)高(gao)層(ceng)(ceng)(ceng)和外膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)構成（如圖例），內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)立即與液壓(ya)油觸碰，故規定在(zai)(zai)長期性(xing)(xing)(xing)(xing)運(yun)行狀(zhuang)態下不(bu)可受液體浸蝕，能(neng)補(bu)漏。在(zai)(zai)提(ti)高(gao)層(ceng)(ceng)(ceng)功(gong)效下會(hui)承擔一(yi)(yi)定工作壓(ya)力。因(yin)而，宜選用丁腈(jing)橡膠(jiao)(jiao)(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)(jiao)(jiao)粒(li)外，危(wei)害性(xing)(xing)(xing)(xing)能(neng)的(de)(de)(de)關(guan)鍵要(yao)素(su)也有內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)的(de)(de)(de)強(qiang)度、薄(bo)厚(hou)(hou)和永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形(xing)變(bian)量(liang)。強(qiang)度和永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形(xing)變(bian)量(liang)對(dui)密封性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)危(wei)害非常大(da)。一(yi)(yi)般強(qiang)度高(gao)、縮(suo)小(xiao)后(hou)(hou)的(de)(de)(de)永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形(xing)變(bian)量(liang)小(xiao)，密封性(xing)(xing)(xing)(xing)性(xing)(xing)(xing)(xing)能(neng)則越好(hao)。一(yi)(yi)般是在(zai)(zai)７０～８５邵(shao)氏硬(ying)度，縮(suo)小(xiao)永(yong)久(jiu)(jiu)性(xing)(xing)(xing)(xing)形(xing)變(bian)５０％時(shi)(shi)。內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)薄(bo)厚(hou)(hou)建議是為(wei)１．５～２．５ｍｍ，太厚(hou)(hou)會(hui)在(zai)(zai)壓(ya)扣(kou)時(shi)(shi)提(ti)升其流動(dong)率，導(dao)致(zhi)(zhi)不(bu)必要(yao)的(de)(de)(de)膠(jiao)(jiao)(jiao)(jiao)(jiao)在(zai)(zai)接頭芯套與橡膠(jiao)(jiao)(jiao)(jiao)(jiao)軟管的(de)(de)(de)觸碰內(nei)孔內(nei)沉積，減少商(shang)品(pin)流通橫截面(mian)(mian)；過薄(bo)會(hui)在(zai)(zai)壓(ya)扣(kou)時(shi)(shi)被壓(ya)裂。另外內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)壁厚(hou)(hou)勻稱性(xing)(xing)(xing)(xing)也很(hen)重要(yao)。假(jia)如薄(bo)厚(hou)(hou)不(bu)勻，縮(suo)小(xiao)后(hou)(hou)會(hui)導(dao)致(zhi)(zhi)一(yi)(yi)面(mian)(mian)裂斷、一(yi)(yi)面(mian)(mian)堆(dui)膠(jiao)(jiao)(jiao)(jiao)(jiao)。內(nei)膠(jiao)(jiao)(jiao)(jiao)(jiao)層(ceng)(ceng)(ceng)表層(ceng)(ceng)(ceng)出現的(de)(de)(de)浮銹也是危(wei)害性(xing)(xing)(xing)(xing)能(neng)品(pin)質的(de)(de)(de)關(guan)鍵要(yao)素(su)。

２）高(gao)壓(ya)膠管關鍵借助提高(gao)層來承受力。手(shou)工(gong)(gong)編織橡膠軟管是靠(kao)膠漿(jiang)與內外黏膠粘緊，因(yin)為同(tong)(tong)一(yi)(yi)手(shou)工(gong)(gong)編織層內不(bu)銹(xiu)鋼(gang)(gang)絲(si)中(zhong)(zhong)(zhong)間的(de)(de)互相觸碰(peng)，在(zai)承擔(dan)氣體壓(ya)力的(de)(de)時候(hou)會因(yin)分(fen)別伸縮式不(bu)一(yi)(yi)而導致不(bu)銹(xiu)鋼(gang)(gang)絲(si)彼此之間的(de)(de)摩擦(ca)而危害其使用性(xing)(xing)能(neng)。而螺旋波(bo)紋管是由盤(pan)繞方(fang)位(wei)不(bu)一(yi)(yi)樣的(de)(de)雙(shuang)層產生一(yi)(yi)個工(gong)(gong)作中(zhong)(zhong)(zhong)層，在(zai)雙(shuang)層中(zhong)(zhong)(zhong)間有(you)正中(zhong)(zhong)(zhong)間膠，因(yin)而同(tong)(tong)一(yi)(yi)工(gong)(gong)作中(zhong)(zhong)(zhong)層的(de)(de)雙(shuang)層不(bu)銹(xiu)鋼(gang)(gang)絲(si)中(zhong)(zhong)(zhong)間沒(mei)有(you)交接(jie)點。因(yin)此 不(bu)容易在(zai)承擔(dan)氣體壓(ya)力時同(tong)(tong)于(yu)不(bu)銹(xiu)鋼(gang)(gang)絲(si)間的(de)(de)交叉式彎折而產生應力或磨(mo)擦(ca)磨(mo)壞(huai)。故使用性(xing)(xing)能(neng)好，能(neng)承擔(dan)髙壓(ya)。

３）高壓(ya)膠管(guan)的外膠層(ceng)粘在提高層(ceng)上(shang)起維護功(gong)效(xiao)，一(yi)般選用氯丁膠。應留意避免 其脆(cui)化開裂而(er)危(wei)害全部(bu)橡膠軟(ruan)管(guan)的使(shi)用壽命。