1、橡膠軟管總成
1)高(gao)壓(ya)(ya)膠(jiao)(jiao)(jiao)(jiao)管(guan)由內膠(jiao)(jiao)(jiao)(jiao)層、提高(gao)層和(he)外膠(jiao)(jiao)(jiao)(jiao)層構成(如(ru)(ru)圖例),內膠(jiao)(jiao)(jiao)(jiao)層立即與(yu)液壓(ya)(ya)油觸(chu)碰,故規(gui)定在(zai)(zai)長期性(xing)(xing)運(yun)行狀(zhuang)態下不可(ke)受液體浸蝕,能(neng)補漏。在(zai)(zai)提高(gao)層功(gong)效下會承擔一(yi)定工(gong)作壓(ya)(ya)力。因而(er),宜選(xuan)用丁腈橡(xiang)膠(jiao)(jiao)(jiao)(jiao),除塑膠(jiao)(jiao)(jiao)(jiao)粒外,危(wei)(wei)害(hai)性(xing)(xing)能(neng)的關鍵要(yao)素也有(you)內膠(jiao)(jiao)(jiao)(jiao)層的強(qiang)度(du)(du)、薄(bo)(bo)厚(hou)(hou)和(he)永(yong)久(jiu)性(xing)(xing)形變量。強(qiang)度(du)(du)和(he)永(yong)久(jiu)性(xing)(xing)形變量對密封性(xing)(xing)性(xing)(xing)能(neng)危(wei)(wei)害(hai)非常大。一(yi)般強(qiang)度(du)(du)高(gao)、縮小(xiao)后的永(yong)久(jiu)性(xing)(xing)形變量小(xiao),密封性(xing)(xing)性(xing)(xing)能(neng)則越好。一(yi)般是在(zai)(zai)70~85邵氏(shi)硬度(du)(du),縮小(xiao)永(yong)久(jiu)性(xing)(xing)形變50%時。內膠(jiao)(jiao)(jiao)(jiao)層薄(bo)(bo)厚(hou)(hou)建議是為(wei)1.5~2.5mm,太厚(hou)(hou)會在(zai)(zai)壓(ya)(ya)扣時提升其流動(dong)率(lv),導(dao)致不必(bi)要(yao)的膠(jiao)(jiao)(jiao)(jiao)在(zai)(zai)接(jie)頭芯(xin)套與(yu)橡(xiang)膠(jiao)(jiao)(jiao)(jiao)軟管(guan)的觸(chu)碰內孔內沉(chen)積(ji),減少商品流通橫截面;過薄(bo)(bo)會在(zai)(zai)壓(ya)(ya)扣時被壓(ya)(ya)裂。另外內膠(jiao)(jiao)(jiao)(jiao)層壁(bi)厚(hou)(hou)勻(yun)稱性(xing)(xing)也很重要(yao)。假如(ru)(ru)薄(bo)(bo)厚(hou)(hou)不勻(yun),縮小(xiao)后會導(dao)致一(yi)面裂斷、一(yi)面堆(dui)膠(jiao)(jiao)(jiao)(jiao)。內膠(jiao)(jiao)(jiao)(jiao)層表層出現(xian)的浮(fu)銹也是危(wei)(wei)害(hai)性(xing)(xing)能(neng)品質的關鍵要(yao)素。
2)高壓(ya)膠(jiao)(jiao)管關鍵(jian)借(jie)助提高層(ceng)來承(cheng)受力(li)。手工編(bian)織(zhi)橡膠(jiao)(jiao)軟管是(shi)(shi)靠膠(jiao)(jiao)漿與內外黏(nian)膠(jiao)(jiao)粘緊(jin),因為(wei)同(tong)一(yi)手工編(bian)織(zhi)層(ceng)內不(bu)銹鋼(gang)絲中間(jian)(jian)的(de)(de)互相觸(chu)碰,在(zai)(zai)承(cheng)擔(dan)氣體(ti)壓(ya)力(li)的(de)(de)時(shi)候會因分別伸縮式(shi)(shi)不(bu)一(yi)而導致不(bu)銹鋼(gang)絲彼(bi)此之間(jian)(jian)的(de)(de)摩擦而危(wei)害(hai)其使用(yong)性(xing)能(neng)。而螺旋波(bo)紋管是(shi)(shi)由盤繞方位不(bu)一(yi)樣的(de)(de)雙(shuang)層(ceng)產(chan)生一(yi)個工作(zuo)中層(ceng),在(zai)(zai)雙(shuang)層(ceng)中間(jian)(jian)有(you)正(zheng)中間(jian)(jian)膠(jiao)(jiao),因而同(tong)一(yi)工作(zuo)中層(ceng)的(de)(de)雙(shuang)層(ceng)不(bu)銹鋼(gang)絲中間(jian)(jian)沒有(you)交(jiao)接點。因此 不(bu)容易在(zai)(zai)承(cheng)擔(dan)氣體(ti)壓(ya)力(li)時(shi)同(tong)于不(bu)銹鋼(gang)絲間(jian)(jian)的(de)(de)交(jiao)叉(cha)式(shi)(shi)彎折(zhe)而產(chan)生應力(li)或磨擦磨壞。故使用(yong)性(xing)能(neng)好,能(neng)承(cheng)擔(dan)髙壓(ya)。
3)高(gao)壓膠(jiao)(jiao)管(guan)(guan)的外(wai)膠(jiao)(jiao)層粘在(zai)提(ti)高(gao)層上起維護功效,一(yi)般選用氯丁膠(jiao)(jiao)。應留(liu)意避(bi)免 其脆化開裂(lie)而危害全部橡(xiang)膠(jiao)(jiao)軟管(guan)(guan)的使用壽命。