在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使前郭機械密封摩擦端面尺寸精度提(ti)高，閥門(men)的密封面，幾何粗(cu)糙(cao)度和表面粗(cu)糙(cao)度，但不能提(ti)高密封表面的相互位置(zhi)精度。

　　前郭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，隨著對前郭機械密封研(yan)(yan)究(jiu)(jiu)的(de)(de)(de)復雜面(mian)(mian)(mian)(mian)，之間(jian)的(de)(de)(de)表面(mian)(mian)(mian)(mian)和密(mi)封(feng)(feng)(feng)磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)(mo)具(ju)研(yan)(yan)究(jiu)(jiu)相(xiang)對(dui)運(yun)(yun)(yun)動(dong)(dong)時，密(mi)封(feng)(feng)(feng)圈表面(mian)(mian)(mian)(mian)，磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)(mo)具(ju)研(yan)(yan)究(jiu)(jiu)部(bu)分和密(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)(mian)之間(jian)的(de)(de)(de)滑(hua)動(dong)(dong)或滾動(dong)(dong)，切斷密(mi)封(feng)(feng)(feng)圈上(shang)薄(bo)薄(bo)的(de)(de)(de)一層金屬表面(mian)(mian)(mian)(mian)。密(mi)封(feng)(feng)(feng)凸(tu)峰(feng)部(bu)分的(de)(de)(de)圈，表面(mian)(mian)(mian)(mian)研(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)，然后逐漸達到所要求的(de)(de)(de)幾何形狀。不僅是金屬磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)的(de)(de)(de)研(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)工(gong)，以(yi)及化學作用。研(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)油可(ke)使加(jia)工(gong)表面(mian)(mian)(mian)(mian)形成的(de)(de)(de)氧化膜，從而加(jia)快研(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過程。地面(mian)(mian)(mian)(mian)運(yun)(yun)(yun)動(dong)(dong)相(xiang)對(dui)運(yun)(yun)(yun)動(dong)(dong)的(de)(de)(de)表面(mian)(mian)(mian)(mian)和密(mi)封(feng)(feng)(feng)圈密(mi)封(feng)(feng)(feng)圈的(de)(de)(de)研(yan)(yan)究(jiu)(jiu)，對(dui)每個(ge)點(dian)的(de)(de)(de)表面(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)道路和相(xiang)對(dui)滑(hua)動(dong)(dong)的(de)(de)(de)研(yan)(yan)究(jiu)(jiu)應該是一樣的(de)(de)(de)。和相(xiang)對(dui)運(yun)(yun)(yun)動(dong)(dong)方向(xiang)(xiang)改變(bian)。改變(bian)密(mi)封(feng)(feng)(feng)環(huan)內(nei)的(de)(de)(de)每個(ge)粒(li)(li)子的(de)(de)(de)表面(mian)(mian)(mian)(mian)上(shang)運(yun)(yun)(yun)動(dong)(dong)的(de)(de)(de)方向(xiang)(xiang)不會重復他們的(de)(de)(de)軌(gui)跡，以(yi)避免(mian)磨(mo)(mo)(mo)(mo)(mo)損明顯增加(jia)了密(mi)封(feng)(feng)(feng)環(huan)的(de)(de)(de)表面(mian)(mian)(mian)(mian)粗糙度。此外，運(yun)(yun)(yun)動(dong)(dong)方向(xiang)(xiang)的(de)(de)(de)改變(bian)不能使磨(mo)(mo)(mo)(mo)(mo)粒(li)(li)分布比較均勻(yun)，且均勻(yun)切斷金屬密(mi)封(feng)(feng)(feng)環(huan)的(de)(de)(de)表面(mian)(mian)(mian)(mian)。

　　前郭機械密封研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)是利用(yong)(yong)涂(tu)敷或者壓(ya)(ya)嵌游離磨(mo)粒(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)劑的(de)(de)混合物(wu)(wu)，在一定剛性(xing)的(de)(de)軟質(zhi)(zhi)研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)上，通過(guo)研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)向磨(mo)料施(shi)加(jia)一定壓(ya)(ya)力(li)，磨(mo)料滾動(dong)與(yu)(yu)滑(hua)動(dong)，從(cong)被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)工(gong)(gong)件(jian)(jian)(jian)上去(qu)除極薄的(de)(de)余量，以提高工(gong)(gong)件(jian)(jian)(jian)的(de)(de)精度(du)(du)和降低表(biao)(biao)(biao)面(mian)(mian)(mian)粗糙度(du)(du)值得加(jia)工(gong)(gong)方法。按研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)時有(you)無研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)液可分為干研(yan)(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)過(guo)程(cheng)中(zhong)，在研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)壓(ya)(ya)力(li)下，眾多(duo)(duo)的(de)(de)磨(mo)料微(wei)粒(li)(li)進行(xing)微(wei)量切(qie)削(xue)。對(dui)工(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)進行(xing)擠壓(ya)(ya)、刻劃、滑(hua)擦；在研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)運(yun)動(dong)中(zhong)當研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)壓(ya)(ya)嵌的(de)(de)磨(mo)粒(li)(li)脫落后及液中(zhong)磨(mo)粒(li)(li)相對(dui)工(gong)(gong)件(jian)(jian)(jian)發生滾動(dong)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)過(guo)程(cheng)中(zhong)，在研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)壓(ya)(ya)力(li)的(de)(de)作(zuo)(zuo)用(yong)(yong)下，眾多(duo)(duo)磨(mo)粒(li)(li)進行(xing)微(wei)量切(qie)削(xue)，同時被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)發生微(wei)小起(qi)伏的(de)(de)塑性(xing)變形(xing)，并且(qie)被加(jia)入的(de)(de)諸(zhu)如硬(ying)脂酸(suan)(suan)、油(you)酸(suan)(suan)、脂肪酸(suan)(suan)等活(huo)性(xing)物(wu)(wu)質(zhi)(zhi)與(yu)(yu)被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)起(qi)化(hua)學(xue)(xue)作(zuo)(zuo)用(yong)(yong)。隨著研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)加(jia)工(gong)(gong)的(de)(de)進行(xing)，磨(mo)具(ju)(ju)與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)間(jian)更趨貼近，其間(jian)充滿了微(wei)屑與(yu)(yu)破碎磨(mo)料的(de)(de)碎渣，堵(du)塞了研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)(biao)面(mian)(mian)(mian)，對(dui)工(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)起(qi)滑(hua)擦作(zuo)(zuo)用(yong)(yong)。所以，研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)加(jia)工(gong)(gong)的(de)(de)實質(zhi)(zhi)是磨(mo)粒(li)(li)的(de)(de)微(wei)量切(qie)削(xue)、研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)微(wei)小起(qi)伏的(de)(de)塑性(xing)流動(dong)、表(biao)(biao)(biao)面(mian)(mian)(mian)活(huo)性(xing)物(wu)(wu)質(zhi)(zhi)的(de)(de)化(hua)學(xue)(xue)作(zuo)(zuo)用(yong)(yong)及研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)堵(du)塞物(wu)(wu)與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)滑(hua)擦作(zuo)(zuo)用(yong)(yong)的(de)(de)綜合結果。

　　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前郭機械密封將熱量傳給軸承(cheng)(cheng)，使軸承(cheng)(cheng)溫(wen)度升(sheng)高。為了控(kong)制傳熱，所以密封的(de)水也起到冷(leng)卻作(zuo)用。

　　前郭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前郭機械密封低(di)壓(ya)側(大氣)將清水、蒸(zheng)汽等(deng)(deng)冷卻(que)流體(ti)直接引入密封端(duan)泄露(lu)處的一種冷卻(que)方式，也稱急冷，急冷不僅冷卻(que)*，還能將密封端(duan)面周圍的雜質及泄露(lu)液帶走，急冷液其壓(ya)力比(bi)密封介質壓(ya)力低(di)。急冷液應盡(jin)量采用軟水，以防(fang)(fang)止水垢(gou)產生(sheng)破壞密封端(duan)面。當密封流體(ti)為易(yi)凝固、易(yi)結晶時，可用蒸(zheng)汽、溶劑等(deng)(deng)防(fang)(fang)止流體(ti)凝結。