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　密封不良

　　密封不良(liang)會引(yin)起(qi)外泄漏和內泄漏。產(chan)生(sheng)密封不良(liang)的原(yuan)因(yin)有：

　　1、裝配不當(dang)，密封件發生破損；

　　2、裝配精(jing)度差，間隙太大，CDCG250系列重載液壓缸加工，密封件被擠出而(er)損(sun)壞(huai)；

　　3、密(mi)封件急劇磨損，CDCG350系列(lie)重載液壓缸加工(gong)，失去密(mi)封作用；

　　4、密封(feng)圈方(fang)(fang)向裝反(fan)(密封(feng)圈唇邊(bian)面向壓力(li)油一方(fang)(fang))，密封(feng)功能失(shi)效(xiao)；

　　5、密封結構不(bu)合理，夏莊鎮(zhen)液(ye)壓缸加工(gong)，壓力超過額定(ding)值(zhi)，失去密封功(gong)效(xiao)。

連接處結合不良

　　連接處結(jie)合(he)不(bu)良主要引起外泄漏，產生(sheng)結(jie)合(he)不(bu)良的原(yuan)因有：

　　1、缸(gang)(gang)筒與(yu)端蓋用螺栓連接時(shi)，拉桿式液壓缸(gang)(gang)加工，螺栓緊(jin)固不良，結合部分(fen)的毛(mao)刺、裝配毛(mao)邊引起結合不良；端面O形密封圈(quan)有配合間隙；

　　2、缸筒(tong)與端(duan)蓋用(yong)螺紋連接時(shi)，緊固端(duan)蓋時(shi)未(wei)達到額定扭矩或密封圈(quan)密封性能不好(hao)；

　　3、液壓缸進油(you)管口因管件振動而引起管口松動。

威海(hai)力(li)建冶(ye)金液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)設(she)備廠座落(luo)在膠東(dong)半島美(mei)麗(li)的(de)海(hai)濱城市----威海(hai)，主要生產重載(zai)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、標(biao)準液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、工程(cheng)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、車輛液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、拉桿多(duo)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)缸、液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統等系(xi)列多(duo)種規格設(she)備及(ji)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)元(yuan)件(jian)。可以(yi)根據用(yong)戶(hu)需要設(she)計(ji)制造各種工程(cheng)用(yong)、冶(ye)金用(yong)標(biao)準和(he)非標(biao)準液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)（氣(qi)）缸及(ji)冶(ye)金、礦山、化工、交通(tong)等行業用(yong)液(ye)(ye)(ye)(ye)壓(ya)(ya)(ya)系(xi)統。同時還從事特種鑄(zhu)造設(she)備（離(li)心鑄(zhu)造機、低壓(ya)(ya)(ya)鑄(zhu)造機）的(de)研發﹑設(she)計(ji)、制造及(ji)安(an)裝調試和(he)咨詢服務(wu)。

擺動式液壓缸

擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)式(shi)液壓缸(gang)(gang)是輸出扭矩并實現往復運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的(de)執行元(yuan)件，有單(dan)葉(xie)片、雙葉(xie)片、螺(luo)旋(xuan)(xuan)(xuan)(xuan)擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)等幾種(zhong)形(xing)式(shi)。葉(xie)片式(shi)式(shi)：定子(zi)塊固定在缸(gang)(gang)體上，而葉(xie)片和(he)轉(zhuan)子(zi)連接(jie)在一起(qi)。根據進油方向，葉(xie)片將(jiang)帶動(dong)(dong)(dong)(dong)(dong)轉(zhuan)子(zi)作(zuo)往復擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)。螺(luo)旋(xuan)(xuan)(xuan)(xuan)擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)式(shi)又分單(dan)螺(luo)旋(xuan)(xuan)(xuan)(xuan)擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)和(he)雙螺(luo)旋(xuan)(xuan)(xuan)(xuan)兩(liang)種(zhong)，現在雙螺(luo)旋(xuan)(xuan)(xuan)(xuan)比較常(chang)用，靠(kao)兩(liang)個螺(luo)旋(xuan)(xuan)(xuan)(xuan)副降液壓缸(gang)(gang)內活塞的(de)直線運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)轉(zhuan)變為(wei)直線運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)與自轉(zhuan)運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的(de)復he運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)，從而實現擺(bai)(bai)(bai)動(dong)(dong)(dong)(dong)(dong)運(yun)(yun)(yun)(yun)(yun)動(dong)(dong)(dong)(dong)(dong)。