在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使城固機械密封摩擦端(duan)面(mian)(mian)尺寸精度提(ti)高，閥門的(de)密封面(mian)(mian)，幾(ji)何粗糙(cao)度和表(biao)(biao)面(mian)(mian)粗糙(cao)度，但不能提(ti)高密封表(biao)(biao)面(mian)(mian)的(de)相互位(wei)置精度。

　　城固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，隨著對城固機械密封研(yan)(yan)究(jiu)(jiu)的(de)(de)復雜面(mian)(mian)(mian)，之(zhi)(zhi)間(jian)的(de)(de)表面(mian)(mian)(mian)和(he)(he)密(mi)封(feng)(feng)磨(mo)料(liao)磨(mo)具(ju)(ju)研(yan)(yan)究(jiu)(jiu)相(xiang)(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)時，密(mi)封(feng)(feng)圈(quan)表面(mian)(mian)(mian)，磨(mo)料(liao)磨(mo)具(ju)(ju)研(yan)(yan)究(jiu)(jiu)部分(fen)(fen)和(he)(he)密(mi)封(feng)(feng)面(mian)(mian)(mian)之(zhi)(zhi)間(jian)的(de)(de)滑動(dong)(dong)(dong)或(huo)滾動(dong)(dong)(dong)，切斷(duan)密(mi)封(feng)(feng)圈(quan)上(shang)薄薄的(de)(de)一(yi)層金(jin)(jin)屬表面(mian)(mian)(mian)。密(mi)封(feng)(feng)凸峰部分(fen)(fen)的(de)(de)圈(quan)，表面(mian)(mian)(mian)研(yan)(yan)磨(mo)，然后逐(zhu)漸達到所要求的(de)(de)幾何形狀。不僅是金(jin)(jin)屬磨(mo)料(liao)的(de)(de)研(yan)(yan)磨(mo)加(jia)工，以(yi)(yi)及化學(xue)作用。研(yan)(yan)磨(mo)油(you)可使(shi)(shi)加(jia)工表面(mian)(mian)(mian)形成(cheng)的(de)(de)氧化膜(mo)，從而(er)加(jia)快研(yan)(yan)磨(mo)過程。地面(mian)(mian)(mian)運(yun)動(dong)(dong)(dong)相(xiang)(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)的(de)(de)表面(mian)(mian)(mian)和(he)(he)密(mi)封(feng)(feng)圈(quan)密(mi)封(feng)(feng)圈(quan)的(de)(de)研(yan)(yan)究(jiu)(jiu)，對(dui)(dui)每(mei)個(ge)點的(de)(de)表面(mian)(mian)(mian)上(shang)的(de)(de)道路和(he)(he)相(xiang)(xiang)對(dui)(dui)滑動(dong)(dong)(dong)的(de)(de)研(yan)(yan)究(jiu)(jiu)應該是一(yi)樣的(de)(de)。和(he)(he)相(xiang)(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)方向改(gai)變。改(gai)變密(mi)封(feng)(feng)環內的(de)(de)每(mei)個(ge)粒子的(de)(de)表面(mian)(mian)(mian)上(shang)運(yun)動(dong)(dong)(dong)的(de)(de)方向不會(hui)重復他們(men)的(de)(de)軌跡，以(yi)(yi)避免磨(mo)損明顯增(zeng)加(jia)了密(mi)封(feng)(feng)環的(de)(de)表面(mian)(mian)(mian)粗糙(cao)度。此(ci)外，運(yun)動(dong)(dong)(dong)方向的(de)(de)改(gai)變不能使(shi)(shi)磨(mo)粒分(fen)(fen)布比(bi)較均(jun)(jun)勻，且(qie)均(jun)(jun)勻切斷(duan)金(jin)(jin)屬密(mi)封(feng)(feng)環的(de)(de)表面(mian)(mian)(mian)。

　　城固機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)是利用(yong)涂敷或者壓(ya)嵌游離(li)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)與(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)劑(ji)的(de)(de)混合(he)物(wu)，在(zai)一定(ding)剛性的(de)(de)軟質研(yan)(yan)(yan)(yan)具(ju)(ju)上，通過(guo)(guo)研(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)工(gong)(gong)件向磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)施加(jia)一定(ding)壓(ya)力，磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)滾動與(yu)滑(hua)(hua)動，從(cong)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)件上去(qu)除極薄的(de)(de)余(yu)量，以提高(gao)工(gong)(gong)件的(de)(de)精度(du)和(he)降低表(biao)(biao)(biao)面(mian)(mian)粗(cu)糙度(du)值得加(jia)工(gong)(gong)方法(fa)。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)時(shi)有(you)無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)液(ye)(ye)可分為干研(yan)(yan)(yan)(yan)與(yu)濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong)，在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力下，眾(zhong)多的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)微(wei)(wei)粒(li)(li)進(jin)行微(wei)(wei)量切(qie)削(xue)。對(dui)工(gong)(gong)件表(biao)(biao)(biao)面(mian)(mian)進(jin)行擠壓(ya)、刻(ke)劃、滑(hua)(hua)擦；在(zai)研(yan)(yan)(yan)(yan)具(ju)(ju)運動中(zhong)當研(yan)(yan)(yan)(yan)具(ju)(ju)壓(ya)嵌的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)脫落后(hou)及(ji)液(ye)(ye)中(zhong)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)相對(dui)工(gong)(gong)件發生(sheng)滾動。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong)，在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力的(de)(de)作(zuo)用(yong)下，眾(zhong)多磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)進(jin)行微(wei)(wei)量切(qie)削(xue)，同時(shi)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)發生(sheng)微(wei)(wei)小起伏的(de)(de)塑性變(bian)形，并且(qie)被(bei)加(jia)入(ru)的(de)(de)諸如硬(ying)脂酸、油(you)酸、脂肪酸等(deng)活(huo)性物(wu)質與(yu)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)起化學作(zuo)用(yong)。隨著研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)的(de)(de)進(jin)行，磨(mo)(mo)(mo)(mo)(mo)(mo)具(ju)(ju)與(yu)工(gong)(gong)件表(biao)(biao)(biao)面(mian)(mian)間(jian)更(geng)趨貼近(jin)，其間(jian)充滿了微(wei)(wei)屑(xie)與(yu)破碎(sui)磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)的(de)(de)碎(sui)渣，堵(du)塞了研(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)(biao)面(mian)(mian)，對(dui)工(gong)(gong)件表(biao)(biao)(biao)面(mian)(mian)起滑(hua)(hua)擦作(zuo)用(yong)。所以，研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)的(de)(de)實質是磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)的(de)(de)微(wei)(wei)量切(qie)削(xue)、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)微(wei)(wei)小起伏的(de)(de)塑性流(liu)動、表(biao)(biao)(biao)面(mian)(mian)活(huo)性物(wu)質的(de)(de)化學作(zuo)用(yong)及(ji)研(yan)(yan)(yan)(yan)具(ju)(ju)堵(du)塞物(wu)與(yu)工(gong)(gong)件表(biao)(biao)(biao)面(mian)(mian)滑(hua)(hua)擦作(zuo)用(yong)的(de)(de)綜合(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城固機械密封將熱(re)量傳(chuan)給軸承，使(shi)軸承溫度升高。為了控制(zhi)傳(chuan)熱(re)，所(suo)以密封(feng)的水也(ye)起(qi)到冷卻作用。

　　城固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城固機械密封低壓(ya)(ya)(ya)側(大氣)將清水、蒸汽等冷(leng)(leng)卻(que)(que)流(liu)(liu)體(ti)直接(jie)引入(ru)密(mi)(mi)封(feng)(feng)端泄露(lu)(lu)處的一種冷(leng)(leng)卻(que)(que)方式，也稱(cheng)急(ji)(ji)冷(leng)(leng)，急(ji)(ji)冷(leng)(leng)不僅冷(leng)(leng)卻(que)(que)*，還(huan)能將密(mi)(mi)封(feng)(feng)端面周圍的雜質(zhi)及(ji)泄露(lu)(lu)液(ye)帶走，急(ji)(ji)冷(leng)(leng)液(ye)其壓(ya)(ya)(ya)力比(bi)密(mi)(mi)封(feng)(feng)介質(zhi)壓(ya)(ya)(ya)力低。急(ji)(ji)冷(leng)(leng)液(ye)應盡(jin)量采用軟水，以(yi)防(fang)止(zhi)水垢產生破(po)壞密(mi)(mi)封(feng)(feng)端面。當密(mi)(mi)封(feng)(feng)流(liu)(liu)體(ti)為易凝固、易結(jie)晶時(shi)，可(ke)用蒸汽、溶劑等防(fang)止(zhi)流(liu)(liu)體(ti)凝結(jie)。