在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使長清機械密封摩擦端面尺寸精度提(ti)高，閥(fa)門的密封(feng)面，幾何粗糙度和(he)表面粗糙度，但(dan)不能(neng)提(ti)高密封(feng)表面的相互位置精度。

　　長清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，隨著對長清機械密封研(yan)(yan)(yan)(yan)究(jiu)(jiu)(jiu)(jiu)的(de)復雜面，之間的(de)表(biao)面和(he)密(mi)(mi)(mi)封(feng)磨(mo)(mo)料(liao)磨(mo)(mo)具(ju)研(yan)(yan)(yan)(yan)究(jiu)(jiu)(jiu)(jiu)相(xiang)(xiang)對(dui)運(yun)(yun)(yun)(yun)動(dong)(dong)時，密(mi)(mi)(mi)封(feng)圈(quan)表(biao)面，磨(mo)(mo)料(liao)磨(mo)(mo)具(ju)研(yan)(yan)(yan)(yan)究(jiu)(jiu)(jiu)(jiu)部分和(he)密(mi)(mi)(mi)封(feng)面之間的(de)滑動(dong)(dong)或滾(gun)動(dong)(dong)，切(qie)斷密(mi)(mi)(mi)封(feng)圈(quan)上(shang)薄薄的(de)一層金(jin)屬表(biao)面。密(mi)(mi)(mi)封(feng)凸峰部分的(de)圈(quan)，表(biao)面研(yan)(yan)(yan)(yan)磨(mo)(mo)，然(ran)后逐漸(jian)達(da)到所要求(qiu)的(de)幾(ji)何形狀(zhuang)。不(bu)僅是金(jin)屬磨(mo)(mo)料(liao)的(de)研(yan)(yan)(yan)(yan)磨(mo)(mo)加(jia)工，以(yi)及(ji)化(hua)學作用。研(yan)(yan)(yan)(yan)磨(mo)(mo)油可(ke)使(shi)加(jia)工表(biao)面形成(cheng)的(de)氧化(hua)膜，從而加(jia)快研(yan)(yan)(yan)(yan)磨(mo)(mo)過程。地面運(yun)(yun)(yun)(yun)動(dong)(dong)相(xiang)(xiang)對(dui)運(yun)(yun)(yun)(yun)動(dong)(dong)的(de)表(biao)面和(he)密(mi)(mi)(mi)封(feng)圈(quan)密(mi)(mi)(mi)封(feng)圈(quan)的(de)研(yan)(yan)(yan)(yan)究(jiu)(jiu)(jiu)(jiu)，對(dui)每(mei)個點的(de)表(biao)面上(shang)的(de)道路和(he)相(xiang)(xiang)對(dui)滑動(dong)(dong)的(de)研(yan)(yan)(yan)(yan)究(jiu)(jiu)(jiu)(jiu)應該是一樣的(de)。和(he)相(xiang)(xiang)對(dui)運(yun)(yun)(yun)(yun)動(dong)(dong)方向改(gai)(gai)變。改(gai)(gai)變密(mi)(mi)(mi)封(feng)環(huan)內的(de)每(mei)個粒(li)子的(de)表(biao)面上(shang)運(yun)(yun)(yun)(yun)動(dong)(dong)的(de)方向不(bu)會重復他們的(de)軌跡(ji)，以(yi)避免磨(mo)(mo)損(sun)明顯增加(jia)了(le)密(mi)(mi)(mi)封(feng)環(huan)的(de)表(biao)面粗糙度。此外(wai)，運(yun)(yun)(yun)(yun)動(dong)(dong)方向的(de)改(gai)(gai)變不(bu)能使(shi)磨(mo)(mo)粒(li)分布比較均勻，且均勻切(qie)斷金(jin)屬密(mi)(mi)(mi)封(feng)環(huan)的(de)表(biao)面。

　　長清機械密封研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)是利(li)用(yong)涂敷或(huo)者壓(ya)(ya)嵌游(you)離磨(mo)(mo)(mo)(mo)(mo)粒與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)(de)混合物(wu)，在(zai)一(yi)(yi)定剛(gang)性(xing)(xing)的(de)(de)(de)(de)軟質研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)上，通過研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)與(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)向磨(mo)(mo)(mo)(mo)(mo)料施加(jia)(jia)一(yi)(yi)定壓(ya)(ya)力(li)，磨(mo)(mo)(mo)(mo)(mo)料滾動與(yu)(yu)滑動，從被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)工(gong)(gong)(gong)(gong)件(jian)上去除極(ji)薄的(de)(de)(de)(de)余量(liang)(liang)，以提(ti)高(gao)工(gong)(gong)(gong)(gong)件(jian)的(de)(de)(de)(de)精度和降低表(biao)(biao)面(mian)粗糙度值得加(jia)(jia)工(gong)(gong)(gong)(gong)方法。按研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)時有無研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)液可分為干研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過程(cheng)中(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)下，眾(zhong)多的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)料微(wei)粒進(jin)行微(wei)量(liang)(liang)切削。對工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)進(jin)行擠壓(ya)(ya)、刻劃、滑擦(ca)(ca)(ca)；在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)運動中(zhong)當研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)壓(ya)(ya)嵌的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)粒脫落(luo)后(hou)及(ji)液中(zhong)磨(mo)(mo)(mo)(mo)(mo)粒相對工(gong)(gong)(gong)(gong)件(jian)發生(sheng)滾動。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過程(cheng)中(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)的(de)(de)(de)(de)作用(yong)下，眾(zhong)多磨(mo)(mo)(mo)(mo)(mo)粒進(jin)行微(wei)量(liang)(liang)切削，同時被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)發生(sheng)微(wei)小起伏(fu)的(de)(de)(de)(de)塑性(xing)(xing)變形，并且被(bei)(bei)加(jia)(jia)入(ru)的(de)(de)(de)(de)諸如硬脂(zhi)酸、油酸、脂(zhi)肪(fang)酸等活性(xing)(xing)物(wu)質與(yu)(yu)被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)起化(hua)(hua)學作用(yong)。隨著研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)進(jin)行，磨(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)間更(geng)趨貼近，其(qi)間充滿了微(wei)屑與(yu)(yu)破碎磨(mo)(mo)(mo)(mo)(mo)料的(de)(de)(de)(de)碎渣(zha)，堵(du)塞(sai)了研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)表(biao)(biao)面(mian)，對工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)起滑擦(ca)(ca)(ca)作用(yong)。所(suo)以，研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)(de)實質是磨(mo)(mo)(mo)(mo)(mo)粒的(de)(de)(de)(de)微(wei)量(liang)(liang)切削、研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)微(wei)小起伏(fu)的(de)(de)(de)(de)塑性(xing)(xing)流動、表(biao)(biao)面(mian)活性(xing)(xing)物(wu)質的(de)(de)(de)(de)化(hua)(hua)學作用(yong)及(ji)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)堵(du)塞(sai)物(wu)與(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)表(biao)(biao)面(mian)滑擦(ca)(ca)(ca)作用(yong)的(de)(de)(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長清機械密封將熱量(liang)傳(chuan)(chuan)給軸承(cheng)，使(shi)軸承(cheng)溫度升(sheng)高。為(wei)了(le)控制傳(chuan)(chuan)熱，所以密封的水也起到冷卻作用。

　　長清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長清機械密封低壓側(大(da)氣)將清水、蒸汽等冷(leng)(leng)(leng)卻流(liu)體直接引(yin)入密(mi)(mi)封(feng)(feng)(feng)端泄露(lu)處的一種冷(leng)(leng)(leng)卻方式，也稱急冷(leng)(leng)(leng)，急冷(leng)(leng)(leng)不僅冷(leng)(leng)(leng)卻*，還(huan)能將密(mi)(mi)封(feng)(feng)(feng)端面周圍的雜質(zhi)及泄露(lu)液帶走，急冷(leng)(leng)(leng)液其(qi)壓力比密(mi)(mi)封(feng)(feng)(feng)介質(zhi)壓力低。急冷(leng)(leng)(leng)液應盡量采用軟(ruan)水，以防止水垢產生破壞密(mi)(mi)封(feng)(feng)(feng)端面。當密(mi)(mi)封(feng)(feng)(feng)流(liu)體為易凝(ning)固、易結(jie)晶時，可用蒸汽、溶劑等防止流(liu)體凝(ning)結(jie)。