工(gong)程(cheng)(cheng)機(ji)械(xie)密(mi)封(feng)(feng)件(jian)(jian)管理(li)(li)(li)中(zhong),如何正確選(xuan)配液(ye)(ye)(ye)壓(ya)(ya)(ya)密(mi)封(feng)(feng)件(jian)(jian)是保證工(gong)程(cheng)(cheng)機(ji)械(xie)液(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)(tong)正常(chang)工(gong)作(zuo)(zuo)的(de)(de)重(zhong)要(yao)環(huan)節(jie).工(gong)作(zuo)(zuo)實踐(jian)經驗(yan)表明.通過(guo)分析液(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)(tong)對密(mi)封(feng)(feng)件(jian)(jian)的(de)(de)要(yao)求(qiu)(qiu).掌(zhang)握液(ye)(ye)(ye)壓(ya)(ya)(ya)密(mi)封(feng)(feng)件(jian)(jian)的(de)(de)技術性(xing)能(neng)、密(mi)封(feng)(feng)機(ji)理(li)(li)(li)、使用(yong)(yong)(yong)特性(xing),并根(gen)據要(yao)求(qiu)(qiu)合理(li)(li)(li)選(xuan)用(yong)(yong)(yong)密(mi)封(feng)(feng)件(jian)(jian)。是確保液(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)(tong)機(ji)械(xie)性(xing)能(neng)的(de)(de)有效方法.在液(ye)(ye)(ye)壓(ya)(ya)(ya)密(mi)封(feng)(feng)件(jian)(jian)管理(li)(li)(li)過(guo)程(cheng)(cheng)中(zhong),普(pu)遍存在對液(ye)(ye)(ye)壓(ya)(ya)(ya)密(mi)封(feng)(feng)件(jian)(jian)相(xiang)關知識掌(zhang)捉不足、,缺乏(fa)對液(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)(tong)認識等問題.因此在密(mi)到件(jian)(jian)的(de)(de)發放及使用(yong)(yong)(yong)過(guo)程(cheng)(cheng)中(zhong)。常(chang)常(chang)出現(xian)密(mi)封(feng)(feng)件(jian)(jian)選(xuan)用(yong)(yong)(yong)不當、替代品使用(yong)(yong)(yong)不合理(li)(li)(li)、型(xing)號(hao)錯誤等,造(zao)成(cheng)液(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統(tong)(tong)喪(sang)失(shi)密(mi)封(feng)(feng)作(zuo)(zuo)用(yong)(yong)(yong)的(de)(de)不良后果.所以怎(zen)樣(yang)選(xuan)擇液(ye)(ye)(ye)壓(ya)(ya)(ya)密(mi)封(feng)(feng)件(jian)(jian)非常(chang)的(de)(de)重(zhong)要(yao)。
斯特(te)(te)封通常(chang)是由合成橡膠質的○形密(mi)封圈與(yu)填充聚(ju)四(si)氟乙烯質的特(te)(te)殊形狀矩形——梯形的密(mi)封圈所組成的,與(yu)格(ge)來圈一樣可(ke)分(fen)為孔(kong)用(yong)斯特(te)(te)封和軸(zhou)用(yong)斯特(te)(te)封,其密(mi)封作用(yong)及密(mi)封機理與(yu)格(ge)來圈一樣,但它只具有(you)單向密(mi)封作用(yong)。
自封式緊密型液壓密封圈:唇形密封圈,與密封表面緊密貼合的唇部接觸面積較小,可以產生更大的壓縮變形,獲得較好的密封作用。但易于磨損,磨損后其密封作用顯著降低,若采用○形密封圈與之疊加使用,即組合密封件時,即使唇部磨損后,由于合成橡膠質○形密封圈具有較大的彈性,它將迫使唇形密封圈的唇部緊貼密封表面,產生足夠大的表面接觸應力,達到密封的作用,并且摩擦阻力較小,工作平穩,又易于裝配和維修等。因此,目前全自動液壓壓磚機、日用陶瓷制品,盤、碟類等靜壓成型機及中壓注漿、高壓注漿衛生陶瓷成型機廣泛應用的液壓密封件幾乎都是組合密封件,如格來圈及斯特圈等。
您好,歡迎蒞臨恒耀密(mi)封,歡迎咨詢...
觸屏版二維碼 |