
威海(hai)力建(jian)液壓設備廠
經營模式:生產加工(gong)
地(di)址:山東省威海市羊亭孫家灘(tan)工業園
主營:液壓(ya)缸,油缸,液壓(ya)系(xi)統(tong)
業務熱線(xian):
QQ:3049278720
CD/CG250、CD/CG350系列(lie)重(zhong)載液壓缸
本系列缸(gang)是(shi)由14種(zhong)(zhong)(zhong)缸(gang)徑,分別按四(si)種(zhong)(zhong)(zhong)速比組(zu)成28種(zhong)(zhong)(zhong)規格的(de)單活(huo)塞(sai)雙(shuang)作(zuo)用差動油缸(gang)。另(ling)缸(gang)頭法(fa)蘭式、中間耳軸安(an)裝(zhuang)式和(he)底(di)座安(an)裝(zhuang)式三種(zhong)(zhong)(zhong)還可做成雙(shuang)活(huo)塞(sai)桿雙(shuang)作(zuo)用等(deng)速油缸(gang),再加上(shang)無端部緩(huan)沖和(he)兩(liang)端部有緩(huan)沖與上(shang)述28種(zhong)(zhong)(zhong)規格組(zu)成384個品種(zhong)(zhong)(zhong)。特別適合于(yu)環境惡劣(lie)、重載的(de)工(gong)作(zuo)狀態下(xia),廣泛應(ying)用于(yu)鋼鐵、鑄造、鍛造及機(ji)械制(zhi)造等(deng)工(gong)業(ye)部門。





采(cai)用滾(gun)(gun)壓(ya)加工,由(you)于表(biao)(biao)面層(ceng)(ceng)留有表(biao)(biao)面殘余壓(ya)應力,有助于表(biao)(biao)面微小(xiao)裂紋的(de)封閉,阻礙(ai)侵蝕作用的(de)擴展。從(cong)而提(ti)高(gao)表(biao)(biao)面抗腐蝕能力,并能延緩疲勞(lao)裂紋的(de)產生或擴大,因而提(ti)高(gao)缸筒疲勞(lao)強度。通過(guo)滾(gun)(gun)壓(ya)成型,滾(gun)(gun)壓(ya)表(biao)(biao)面形(xing)成一層(ceng)(ceng)冷作硬化層(ceng)(ceng),減少了(le)(le)磨(mo)削副接(jie)觸表(biao)(biao)面的(de)彈性(xing)和塑性(xing)變形(xing),從(cong)而提(ti)高(gao)了(le)(le)缸筒內壁的(de)耐(nai)磨(mo)性(xing),同(tong)時避免(mian)了(le)(le)因磨(mo)削引起的(de)shao傷。滾(gun)(gun)壓(ya)后,表(biao)(biao)面粗糙度值的(de)減小(xiao),可提(ti)高(gao)配合性(xing)質。
1、液(ye)壓(ya)缸有桿腔(qiang)和(he)無桿腔(qiang)存有氣(qi)體而(er)產(chan)生(sheng)的(de)低速(su)爬行(xing),可通過反復運行(xing)液(ye)壓(ya)缸達(da)到(dao)排氣(qi)的(de)目(mu)的(de),必要時在管(guan)路或液(ye)壓(ya)缸的(de)兩腔(qiang)設置(zhi)排氣(qi)裝置(zhi),在液(ye)壓(ya)系(xi)統工作時進行(xing)排氣(qi)。
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2、液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)設(she)(she)計間(jian)(jian)(jian)(jian)隙(xi)(xi)不當產生(sheng)的低速爬行(xing),可正確設(she)(she)計液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)內(nei)部活(huo)塞和(he)缸(gang)(gang)(gang)(gang)(gang)體、活(huo)塞桿(gan)(gan)和(he)導向套之間(jian)(jian)(jian)(jian)的滑動配(pei)合間(jian)(jian)(jian)(jian)隙(xi)(xi),理論上的配(pei)合間(jian)(jian)(jian)(jian)隙(xi)(xi)為H9/N或H9/f8,也有H8/f8的;根據本作者的經驗(yan),液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)的缸(gang)(gang)(gang)(gang)(gang)徑和(he)桿(gan)(gan)徑由小到(dao)大,如都按(an)此(ci)來設(she)(she)計配(pei)合間(jian)(jian)(jian)(jian)隙(xi)(xi),對于較大缸(gang)(gang)(gang)(gang)(gang)徑(≥?200mm)和(he)桿(gan)(gan)徑(≥?140mm)的配(pei)合間(jian)(jian)(jian)(jian)隙(xi)(xi)就顯得間(jian)(jian)(jian)(jian)隙(xi)(xi)過大,實(shi)際(ji)應過程中,這類液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)低速爬行(xing)現象較小缸(gang)(gang)(gang)(gang)(gang)徑的液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)出現的多(duo),國外此(ci)類液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)滑動面的配(pei)合間(jian)(jian)(jian)(jian)隙(xi)(xi)一般設(she)(she)計為0.05mm∽0.15mm,從(cong)實(shi)際(ji)比較的結果來看,液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)的低速爬行(xing)問題明顯改善(shan)。因(yin)此(ci)對大缸(gang)(gang)(gang)(gang)(gang)徑的液(ye)(ye)(ye)壓(ya)(ya)缸(gang)(gang)(gang)(gang)(gang)建議選(xuan)用這種(zhong)方法。