FESTO氣缸與您分享下活塞桿使用過程中的些小竅門?
FESTO氣缸(gang)(gang)(gang)運(yun)動(dong)(dong)執行部件中(zhong),是(shi)(shi)個(ge)(ge)運(yun)動(dong)(dong)頻繁(fan)、技(ji)術要(yao)(yao)(yao)求(qiu)(qiu)高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)運(yun)動(dong)(dong)部件。以液壓(ya)(ya)(ya)油(you)(you)(you)缸(gang)(gang)(gang)為(wei)(wei)例(li),由:FESTO氣缸(gang)(gang)(gang)活(huo)(huo)塞(sai)、端蓋幾部分組(zu)成。其加工(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)好壞直接影(ying)響整(zheng)個(ge)(ge)產(chan)(chan)品(pin)的(de)(de)(de)(de)(de)(de)(de)壽命和可(ke)靠性(xing)。活(huo)(huo)塞(sai)桿(gan)加工(gong)(gong)要(yao)(yao)(yao)求(qiu)(qiu)高(gao)(gao),其表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)粗(cu)糙(cao)度(du)(du)(du)要(yao)(yao)(yao)求(qiu)(qiu)為(wei)(wei)Ra0.4~0.8um,對同(tong)軸度(du)(du)(du)、耐磨(mo)(mo)性(xing)要(yao)(yao)(yao)求(qiu)(qiu)嚴(yan)格。油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)的(de)(de)(de)(de)(de)(de)(de)基(ji)本特征是(shi)(shi)細長軸加工(gong)(gong),其加工(gong)(gong)難度(du)(du)(du)大(da),直困擾加工(gong)(gong)人員。 采用(yong)滾(gun)壓(ya)(ya)(ya)加工(gong)(gong),由于表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)層(ceng)留有表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)殘余壓(ya)(ya)(ya)應力(li),有助于表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)微(wei)小裂紋(wen)的(de)(de)(de)(de)(de)(de)(de)封(feng)閉,阻礙侵(qin)蝕作(zuo)用(yong)的(de)(de)(de)(de)(de)(de)(de)擴(kuo)(kuo)展。從而提(ti)高(gao)(gao)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)抗(kang)腐蝕能(neng)力(li),并能(neng)延緩疲勞(lao)(lao)裂紋(wen)的(de)(de)(de)(de)(de)(de)(de)產(chan)(chan)生或擴(kuo)(kuo)大(da),因(yin)而提(ti)高(gao)(gao)油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)疲勞(lao)(lao)強度(du)(du)(du)。通過(guo)滾(gun)壓(ya)(ya)(ya)成型,滾(gun)壓(ya)(ya)(ya)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)形(xing)成層(ceng)冷作(zuo)硬(ying)化層(ceng),減(jian)少(shao)了(le)(le)(le)磨(mo)(mo)削(xue)副接觸表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)彈性(xing)和塑性(xing)變形(xing),從而提(ti)高(gao)(gao)了(le)(le)(le)油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)的(de)(de)(de)(de)(de)(de)(de)耐磨(mo)(mo)性(xing),同(tong)時(shi)避免(mian)了(le)(le)(le)因(yin)磨(mo)(mo)削(xue)引起的(de)(de)(de)(de)(de)(de)(de)燒傷。滾(gun)壓(ya)(ya)(ya)后(hou),表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)粗(cu)糙(cao)度(du)(du)(du)值的(de)(de)(de)(de)(de)(de)(de)減(jian)小,可(ke)提(ti)高(gao)(gao)配合(he)性(xing)質。同(tong)時(shi),降(jiang)低了(le)(le)(le)油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)活(huo)(huo)塞(sai)運(yun)動(dong)(dong)時(shi)對密封(feng)圈或密封(feng)件的(de)(de)(de)(de)(de)(de)(de)摩擦損傷,提(ti)高(gao)(gao)了(le)(le)(le)油(you)(you)(you)缸(gang)(gang)(gang)的(de)(de)(de)(de)(de)(de)(de)整(zheng)體使用(yong)壽命。 滾(gun)壓(ya)(ya)(ya)工(gong)(gong)藝(yi)是(shi)(shi)種(zhong)高(gao)(gao)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝(yi)措施,現(xian)以直徑160mm鏡博士(shi)牌削(xue)滾(gun)壓(ya)(ya)(ya)頭(tou)(45鋼(gang)無縫鋼(gang)管)為(wei)(wei)例(li)證明滾(gun)壓(ya)(ya)(ya)效果。滾(gun)壓(ya)(ya)(ya)后(hou),油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)粗(cu)糙(cao)度(du)(du)(du)由幢滾(gun)前Ra3.2~6.3um減(jian)小為(wei)(wei)Ra0.4~0.8um,油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)硬(ying)度(du)(du)(du)提(ti)高(gao)(gao)約30%,油(you)(you)(you)缸(gang)(gang)(gang)桿(gan)表(biao)(biao)(biao)(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)疲勞(lao)(lao)強度(du)(du)(du)提(ti)高(gao)(gao)25%。 針(zhen)對往復活(huo)(huo)塞(sai)式(shi)縮機(ji)的(de)(de)(de)(de)(de)(de)(de)活(huo)(huo)塞(sai)桿(gan)材料選擇(ze)、受力(li)與技(ji)術要(yao)(yao)(yao)求(qiu)(qiu)、加工(gong)(gong)及(ji)(ji)熱處(chu)理(li)、機(ji)械(xie)和基(ji)體組(zu)織之間相互的(de)(de)(de)(de)(de)(de)(de)若干規(gui)律(lv)、調質處(chu)理(li)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝(yi),提(ti)出與沿(yan)用(yong)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝(yi)具有明顯不同(tong)的(de)(de)(de)(de)(de)(de)(de)方(fang)法,引用(yong)亞溫淬火(huo)確保,降(jiang)低消耗(hao)本文從零件的(de)(de)(de)(de)(de)(de)(de)分析(xi),工(gong)(gong)藝(yi)規(gui)格設計,及(ji)(ji)加工(gong)(gong)過(guo)程中(zhong)夾(jia)具的(de)(de)(de)(de)(de)(de)(de)設計三個(ge)(ge)方(fang)面(mian)(mian)(mian)(mian),天(tian)津(jin)活(huo)(huo)塞(sai)桿(gan)加工(gong)(gong)闡述了(le)(le)(le)組(zu)焊件活(huo)(huo)塞(sai)桿(gan)的(de)(de)(de)(de)(de)(de)(de)工(gong)(gong)藝(yi)制(zhi)造的(de)(de)(de)(de)(de)(de)(de)全過(guo)程,尤其在工(gong)(gong)藝(yi)規(gui)程設計中(zhong),我們(men)運(yun)用(yong)已掌(zhang)握的(de)(de)(de)(de)(de)(de)(de)機(ji)械(xie)制(zhi)造理(li)論及(ji)(ji)計算公(gong)式(shi),確定(ding)了(le)(le)(le)毛坯的(de)(de)(de)(de)(de)(de)(de)制(zhi)造形(xing)式(shi),選擇(ze)了(le)(le)(le)基(ji)面(mian)(mian)(mian)(mian),制(zhi)定(ding)了(le)(le)(le)工(gong)(gong)藝(yi)路線,確定(ding)了(le)(le)(le)機(ji)械(xie)加工(gong)(gong)余量(liang)、工(gong)(gong)序尺寸(cun)和毛坯尺寸(cun),zui后(hou)確定(ding)了(le)(le)(le)切削(xue)用(yong)量(liang)及(ji)(ji)基(ji)本工(gong)(gong)時(shi)。
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