1、橡膠軟管總成
1)高(gao)壓膠(jiao)(jiao)(jiao)管由內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)、提高(gao)層(ceng)(ceng)和外膠(jiao)(jiao)(jiao)層(ceng)(ceng)構成(如(ru)圖例(li)),內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)立即與液壓油觸(chu)碰,故(gu)規定在(zai)長期性(xing)(xing)(xing)運行狀態下不可(ke)受液體(ti)浸(jin)蝕(shi),能(neng)補(bu)漏。在(zai)提高(gao)層(ceng)(ceng)功效下會(hui)承擔一(yi)定工作壓力。因而,宜選用(yong)丁腈橡膠(jiao)(jiao)(jiao),除塑膠(jiao)(jiao)(jiao)粒外,危(wei)害性(xing)(xing)(xing)能(neng)的(de)關鍵(jian)要素(su)也有內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)的(de)強(qiang)度、薄(bo)厚(hou)和永(yong)久性(xing)(xing)(xing)形變(bian)量(liang)。強(qiang)度和永(yong)久性(xing)(xing)(xing)形變(bian)量(liang)對密(mi)封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)危(wei)害非(fei)常大。一(yi)般強(qiang)度高(gao)、縮小后(hou)(hou)的(de)永(yong)久性(xing)(xing)(xing)形變(bian)量(liang)小,密(mi)封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)則越好。一(yi)般是(shi)在(zai)70~85邵氏硬度,縮小永(yong)久性(xing)(xing)(xing)形變(bian)50%時(shi)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)薄(bo)厚(hou)建議是(shi)為(wei)1.5~2.5mm,太厚(hou)會(hui)在(zai)壓扣時(shi)提升其(qi)流動(dong)率,導(dao)致不必要的(de)膠(jiao)(jiao)(jiao)在(zai)接頭芯套與橡膠(jiao)(jiao)(jiao)軟管的(de)觸(chu)碰內(nei)(nei)(nei)孔(kong)內(nei)(nei)(nei)沉積(ji),減少商品流通橫(heng)截面;過薄(bo)會(hui)在(zai)壓扣時(shi)被壓裂(lie)。另(ling)外內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)壁(bi)厚(hou)勻(yun)(yun)稱性(xing)(xing)(xing)也很重要。假如(ru)薄(bo)厚(hou)不勻(yun)(yun),縮小后(hou)(hou)會(hui)導(dao)致一(yi)面裂(lie)斷、一(yi)面堆膠(jiao)(jiao)(jiao)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)(ceng)表層(ceng)(ceng)出現(xian)的(de)浮銹也是(shi)危(wei)害性(xing)(xing)(xing)能(neng)品質(zhi)的(de)關鍵(jian)要素(su)。
2)高壓膠(jiao)(jiao)管關(guan)鍵(jian)借助提高層(ceng)來承(cheng)受力(li)。手工(gong)(gong)編織(zhi)橡膠(jiao)(jiao)軟管是靠(kao)膠(jiao)(jiao)漿(jiang)與(yu)內(nei)外黏膠(jiao)(jiao)粘(zhan)緊(jin),因(yin)為同(tong)一手工(gong)(gong)編織(zhi)層(ceng)內(nei)不銹(xiu)鋼(gang)絲中間(jian)(jian)的(de)(de)互相觸碰,在(zai)承(cheng)擔氣體壓力(li)的(de)(de)時(shi)候會(hui)因(yin)分別伸縮式不一而(er)(er)導致不銹(xiu)鋼(gang)絲彼此(ci)之間(jian)(jian)的(de)(de)摩擦而(er)(er)危害其(qi)使用性(xing)(xing)能。而(er)(er)螺旋波(bo)紋管是由盤繞(rao)方位(wei)不一樣的(de)(de)雙(shuang)層(ceng)產生一個工(gong)(gong)作中層(ceng),在(zai)雙(shuang)層(ceng)中間(jian)(jian)有正中間(jian)(jian)膠(jiao)(jiao),因(yin)而(er)(er)同(tong)一工(gong)(gong)作中層(ceng)的(de)(de)雙(shuang)層(ceng)不銹(xiu)鋼(gang)絲中間(jian)(jian)沒有交接(jie)點(dian)。因(yin)此(ci) 不容易在(zai)承(cheng)擔氣體壓力(li)時(shi)同(tong)于不銹(xiu)鋼(gang)絲間(jian)(jian)的(de)(de)交叉式彎(wan)折而(er)(er)產生應(ying)力(li)或磨擦磨壞。故使用性(xing)(xing)能好,能承(cheng)擔髙壓。
3)高(gao)(gao)壓膠(jiao)管的(de)外膠(jiao)層粘在提高(gao)(gao)層上起維護功效,一(yi)般(ban)選(xuan)用氯丁膠(jiao)。應留意避免 其脆(cui)化(hua)開(kai)裂而危害全部(bu)橡膠(jiao)軟(ruan)管的(de)使(shi)用壽命。