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發布時間:2021-12-17 11:54:31 人(ren)氣:97966 來(lai)源:
在研磨過程中,閥門制造的密封面是一個常用的整理方法,可以使洪梅鎮機械密封摩擦端面(mian)(mian)尺(chi)寸(cun)精(jing)度(du)提高,閥(fa)門的(de)密封(feng)面(mian)(mian),幾(ji)何(he)粗(cu)糙度(du)和表(biao)面(mian)(mian)粗(cu)糙度(du),但不能(neng)提高密封(feng)表(biao)面(mian)(mian)的(de)相互(hu)位置精(jing)度(du)。
洪梅鎮機械密封面研磨包括五個方面的基本原理:研磨運動、研磨工藝、研磨速度、研磨壓力和研磨余量。研磨過程好一起研究密封面,隨著對洪梅鎮機械密封研(yan)究(jiu)的(de)(de)(de)(de)(de)復雜(za)面(mian)(mian),之間的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)和(he)密(mi)(mi)封磨(mo)(mo)料磨(mo)(mo)具研(yan)究(jiu)相對運(yun)(yun)動(dong)(dong)時,密(mi)(mi)封圈表(biao)面(mian)(mian),磨(mo)(mo)料磨(mo)(mo)具研(yan)究(jiu)部(bu)分(fen)和(he)密(mi)(mi)封面(mian)(mian)之間的(de)(de)(de)(de)(de)滑動(dong)(dong)或(huo)滾動(dong)(dong),切斷(duan)密(mi)(mi)封圈上(shang)薄薄的(de)(de)(de)(de)(de)一(yi)層金(jin)(jin)屬表(biao)面(mian)(mian)。密(mi)(mi)封凸峰部(bu)分(fen)的(de)(de)(de)(de)(de)圈,表(biao)面(mian)(mian)研(yan)磨(mo)(mo),然(ran)后逐(zhu)漸達到所要求的(de)(de)(de)(de)(de)幾何形(xing)狀。不(bu)僅是金(jin)(jin)屬磨(mo)(mo)料的(de)(de)(de)(de)(de)研(yan)磨(mo)(mo)加工(gong),以及化學作(zuo)用。研(yan)磨(mo)(mo)油(you)可使(shi)(shi)加工(gong)表(biao)面(mian)(mian)形(xing)成的(de)(de)(de)(de)(de)氧化膜(mo),從而加快研(yan)磨(mo)(mo)過程。地面(mian)(mian)運(yun)(yun)動(dong)(dong)相對運(yun)(yun)動(dong)(dong)的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)和(he)密(mi)(mi)封圈密(mi)(mi)封圈的(de)(de)(de)(de)(de)研(yan)究(jiu),對每個(ge)點的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)上(shang)的(de)(de)(de)(de)(de)道(dao)路和(he)相對滑動(dong)(dong)的(de)(de)(de)(de)(de)研(yan)究(jiu)應該是一(yi)樣(yang)的(de)(de)(de)(de)(de)。和(he)相對運(yun)(yun)動(dong)(dong)方向(xiang)(xiang)改(gai)變。改(gai)變密(mi)(mi)封環(huan)內(nei)的(de)(de)(de)(de)(de)每個(ge)粒子的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)上(shang)運(yun)(yun)動(dong)(dong)的(de)(de)(de)(de)(de)方向(xiang)(xiang)不(bu)會(hui)重復他們(men)的(de)(de)(de)(de)(de)軌跡,以避免磨(mo)(mo)損明顯增加了密(mi)(mi)封環(huan)的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)粗糙度。此外,運(yun)(yun)動(dong)(dong)方向(xiang)(xiang)的(de)(de)(de)(de)(de)改(gai)變不(bu)能(neng)使(shi)(shi)磨(mo)(mo)粒分(fen)布比較均勻,且均勻切斷(duan)金(jin)(jin)屬密(mi)(mi)封環(huan)的(de)(de)(de)(de)(de)表(biao)面(mian)(mian)。
洪梅鎮機械密封研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)是(shi)利用涂(tu)敷或者(zhe)壓(ya)嵌(qian)游離磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)混合(he)(he)物(wu),在一定(ding)(ding)剛(gang)性的(de)(de)(de)軟質(zhi)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)上,通過(guo)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)(yu)工件(jian)(jian)向(xiang)磨(mo)(mo)(mo)(mo)(mo)料(liao)施加(jia)(jia)(jia)一定(ding)(ding)壓(ya)力(li)(li),磨(mo)(mo)(mo)(mo)(mo)料(liao)滾動與(yu)(yu)滑(hua)動,從被研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)工件(jian)(jian)上去除(chu)極薄(bo)的(de)(de)(de)余量,以提高工件(jian)(jian)的(de)(de)(de)精度和降低表(biao)(biao)(biao)面粗(cu)糙(cao)度值得加(jia)(jia)(jia)工方(fang)法。按(an)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)時有無研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)液(ye)可分為干研(yan)(yan)(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過(guo)程中(zhong),在研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)(li)下,眾(zhong)多(duo)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)料(liao)微(wei)粒(li)(li)進(jin)行(xing)微(wei)量切(qie)削。對(dui)(dui)工件(jian)(jian)表(biao)(biao)(biao)面進(jin)行(xing)擠(ji)壓(ya)、刻劃、滑(hua)擦;在研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)運動中(zhong)當研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)壓(ya)嵌(qian)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)脫落后(hou)及液(ye)中(zhong)磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)相對(dui)(dui)工件(jian)(jian)發(fa)生滾動。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過(guo)程中(zhong),在研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)(li)的(de)(de)(de)作(zuo)(zuo)用下,眾(zhong)多(duo)磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)進(jin)行(xing)微(wei)量切(qie)削,同時被研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面發(fa)生微(wei)小起伏的(de)(de)(de)塑性變(bian)形,并且被加(jia)(jia)(jia)入的(de)(de)(de)諸如硬脂(zhi)酸、油酸、脂(zhi)肪酸等活(huo)性物(wu)質(zhi)與(yu)(yu)被研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面起化(hua)學作(zuo)(zuo)用。隨著研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)(jia)工的(de)(de)(de)進(jin)行(xing),磨(mo)(mo)(mo)(mo)(mo)具(ju)(ju)與(yu)(yu)工件(jian)(jian)表(biao)(biao)(biao)面間更趨貼近(jin),其間充滿了微(wei)屑與(yu)(yu)破(po)碎磨(mo)(mo)(mo)(mo)(mo)料(liao)的(de)(de)(de)碎渣,堵(du)塞了研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)(biao)面,對(dui)(dui)工件(jian)(jian)表(biao)(biao)(biao)面起滑(hua)擦作(zuo)(zuo)用。所(suo)以,研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)(jia)工的(de)(de)(de)實質(zhi)是(shi)磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)的(de)(de)(de)微(wei)量切(qie)削、研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面微(wei)小起伏的(de)(de)(de)塑性流動、表(biao)(biao)(biao)面活(huo)性物(wu)質(zhi)的(de)(de)(de)化(hua)學作(zuo)(zuo)用及研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)堵(du)塞物(wu)與(yu)(yu)工件(jian)(jian)表(biao)(biao)(biao)面滑(hua)擦作(zuo)(zuo)用的(de)(de)(de)綜合(he)(he)結果(guo)。
為了不讓泵水通過軸與密封間隙泄漏,由出口冷凝泵或在鹽水中的母管引至密封水。給水泵是一種具有一定溫度、高溫的水通過泵軸或泵體金屬容器用洪梅鎮機械密封將熱(re)量傳(chuan)給(gei)軸承,使軸承溫(wen)度升高。為了控制傳(chuan)熱(re),所以密封的水也起到冷卻作用。
洪梅鎮機械密封直接冷卻就是冷卻液體直接和密封端面接觸達到冷卻的目的。沖洗實際上也是直接冷卻的一種方式,沖洗方式中通過管路連接換熱器將冷卻后的沖洗液引入密封腔進行直接冷卻。還有一種直接冷卻就是在洪梅鎮機械密封低壓側(ce)(大(da)氣)將清水、蒸汽等冷(leng)(leng)卻流體直接(jie)引(yin)入密(mi)封端泄露處的(de)一(yi)種(zhong)冷(leng)(leng)卻方式,也稱急冷(leng)(leng),急冷(leng)(leng)不(bu)僅冷(leng)(leng)卻*,還能(neng)將密(mi)封端面周圍的(de)雜質及泄露液(ye)帶走,急冷(leng)(leng)液(ye)其壓力比(bi)密(mi)封介質壓力低。急冷(leng)(leng)液(ye)應(ying)盡(jin)量采(cai)用軟水,以(yi)防止(zhi)水垢產生(sheng)破壞密(mi)封端面。當(dang)密(mi)封流體為易凝固、易結(jie)晶時,可用蒸汽、溶劑等防止(zhi)流體凝結(jie)。