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威海(hai)力建冶(ye)金(jin)液(ye)壓(ya)(ya)(ya)(ya)(ya)設(she)(she)備廠座(zuo)落在膠(jiao)東半島美麗的海(hai)濱城(cheng)市----威海(hai)，主要生產重載液(ye)壓(ya)(ya)(ya)(ya)(ya)缸、標準液(ye)壓(ya)(ya)(ya)(ya)(ya)缸、工(gong)程液(ye)壓(ya)(ya)(ya)(ya)(ya)缸、車輛液(ye)壓(ya)(ya)(ya)(ya)(ya)缸、拉桿多液(ye)壓(ya)(ya)(ya)(ya)(ya)缸、液(ye)壓(ya)(ya)(ya)(ya)(ya)系統(tong)等系列多種(zhong)規(gui)格(ge)設(she)(she)備及(ji)液(ye)壓(ya)(ya)(ya)(ya)(ya)元件。可(ke)以根(gen)據(ju)用戶(hu)需要設(she)(she)計制(zhi)造(zao)各種(zhong)工(gong)程用、冶(ye)金(jin)用標準和(he)非標準液(ye)壓(ya)(ya)(ya)(ya)(ya)（氣(qi)）缸及(ji)冶(ye)金(jin)、礦山、化工(gong)、交通(tong)等行業用液(ye)壓(ya)(ya)(ya)(ya)(ya)系統(tong)。同時還從事特種(zhong)鑄造(zao)設(she)(she)備（離心鑄造(zao)機(ji)、低壓(ya)(ya)(ya)(ya)(ya)鑄造(zao)機(ji)）的研發﹑設(she)(she)計、制(zhi)造(zao)及(ji)安(an)裝調試和(he)咨詢服務。

液壓缸結構基本(ben)上可以分(fen)(fen)為缸筒和(he)(he)缸蓋、活塞(sai)和(he)(he)活塞(sai)桿、密(mi)封裝(zhuang)置(zhi)、緩沖裝(zhuang)置(zhi)和(he)(he)排氣(qi)裝(zhuang)置(zhi)五個(ge)部分(fen)(fen)。今天威海力(li)建(jian)小編著重帶著大家了解一下缸筒和(he)(he)缸蓋。

 缸筒和(he)缸蓋

一般來(lai)說，缸(gang)筒(tong)和缸(gang)蓋的(de)(de)結(jie)構形(xing)式(shi)(shi)和其使(shi)用(yong)(yong)(yong)(yong)的(de)(de)材料有關。工(gong)(gong)作壓力p＜10MPa時(shi)(shi)，使(shi)用(yong)(yong)(yong)(yong)鑄鐵；p＜20MPa時(shi)(shi)，使(shi)用(yong)(yong)(yong)(yong)無縫(feng)(feng)鋼管；p＞20MPa時(shi)(shi)，使(shi)用(yong)(yong)(yong)(yong)鑄鋼或鍛鋼。法蘭(lan)連(lian)接式(shi)(shi)，結(jie)構簡單，容易(yi)(yi)加(jia)(jia)工(gong)(gong)，也容易(yi)(yi)裝(zhuang)拆(chai)，但(dan)外(wai)(wai)形(xing)尺寸(cun)和重(zhong)量(liang)(liang)都較(jiao)大(da)(da)，常(chang)用(yong)(yong)(yong)(yong)于(yu)鑄鐵制(zhi)(zhi)(zhi)的(de)(de)缸(gang)筒(tong)上。半環連(lian)接式(shi)(shi)，它(ta)(ta)(ta)的(de)(de)缸(gang)筒(tong)壁部因(yin)開(kai)了環形(xing)槽而(er)削弱了強度(du)，為此有時(shi)(shi)要加(jia)(jia)厚缸(gang)壁，它(ta)(ta)(ta)容易(yi)(yi)加(jia)(jia)工(gong)(gong)和裝(zhuang)拆(chai)，重(zhong)量(liang)(liang)較(jiao)輕，常(chang)用(yong)(yong)(yong)(yong)于(yu)無縫(feng)(feng)鋼管或鍛鋼制(zhi)(zhi)(zhi)的(de)(de)缸(gang)筒(tong)上。螺(luo)紋連(lian)接式(shi)(shi)，它(ta)(ta)(ta)的(de)(de)缸(gang)筒(tong)端部結(jie)構復雜，外(wai)(wai)徑加(jia)(jia)工(gong)(gong)時(shi)(shi)要求(qiu)保證內(nei)外(wai)(wai)徑同心，裝(zhuang)拆(chai)要使(shi)用(yong)(yong)(yong)(yong)工(gong)(gong)具，它(ta)(ta)(ta)的(de)(de)外(wai)(wai)形(xing)尺寸(cun)和重(zhong)量(liang)(liang)都較(jiao)小，常(chang)用(yong)(yong)(yong)(yong)于(yu)無縫(feng)(feng)鋼管或鑄鋼制(zhi)(zhi)(zhi)的(de)(de)缸(gang)筒(tong)上。拉桿連(lian)接式(shi)(shi)，結(jie)構的(de)(de)通用(yong)(yong)(yong)(yong)性大(da)(da)，容易(yi)(yi)加(jia)(jia)工(gong)(gong)和裝(zhuang)拆(chai)，但(dan)外(wai)(wai)形(xing)尺寸(cun)較(jiao)大(da)(da)，且較(jiao)重(zhong)。焊接連(lian)接式(shi)(shi)，結(jie)構簡單，尺寸(cun)小，但(dan)缸(gang)底處(chu)內(nei)徑不易(yi)(yi)加(jia)(jia)工(gong)(gong)，且可能引起變形(xing)。

現象（一）：唇(chun)口破損

原因：

1.背壓損傷

防止措施：

1.在活塞頭靠(kao)經唇(chun)口側加開泄壓(ya)孔或者改用組合類雙作用密封

現(xian)象（二）：焦燒

原因：

1.系統內有殘留(liu)空(kong)氣在(zai)運行時(shi)，空(kong)氣在(zai)密封處(chu)聚集壓縮升溫產(chan)生密封焦燒碳化

防止措施：

1.在油(you)缸起動之(zhi)前(qian)，盡量排盡油(you)缸內空(kong)氣(qi)

2.油(you)缸起動(dong)時(shi)，不要(yao)立(li)即開(kai)到高速

3.當用U形圈時(shi)在其谷部加入潤滑脂，以防空氣積累(lei)

原因：

1.溫度太高

2.介質(zhi)與橡膠材料不相適應

3.介質變質

4.密封受(shou)潮或者在空氣中(zhong)暴露時間(jian)過(guo)長(chang)超(chao)過(guo)庫(ku)存期(qi)限導致材料老化

防止措施：

1.降低溫度，或者(zhe)更(geng)換(huan)耐高溫密封件材料

2.更改介(jie)質(zhi)或更改耐介(jie)質(zhi)的密封件材料

3.換新介質

4.不要(yao)將密封件長時(shi)間暴露(lu)在大氣中(zhong)，嚴格按照密封庫存(cun)(cun)要(yao)求(qiu)對密封進行保存(cun)(cun)