在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使洞頭機械密封摩擦端(duan)面尺寸精度提高，閥門(men)的密封面，幾何(he)粗糙度和表面粗糙度，但不能提高密封表面的相互位(wei)置精度。

　　洞頭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，隨著對洞頭機械密封研(yan)究(jiu)的(de)(de)(de)(de)復雜(za)面(mian)(mian)(mian)，之(zhi)間的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)密(mi)(mi)(mi)封(feng)磨(mo)(mo)料(liao)磨(mo)(mo)具(ju)研(yan)究(jiu)相對運(yun)(yun)動(dong)時，密(mi)(mi)(mi)封(feng)圈(quan)表(biao)(biao)面(mian)(mian)(mian)，磨(mo)(mo)料(liao)磨(mo)(mo)具(ju)研(yan)究(jiu)部分和(he)密(mi)(mi)(mi)封(feng)面(mian)(mian)(mian)之(zhi)間的(de)(de)(de)(de)滑動(dong)或滾動(dong)，切斷(duan)密(mi)(mi)(mi)封(feng)圈(quan)上(shang)(shang)薄薄的(de)(de)(de)(de)一層金屬表(biao)(biao)面(mian)(mian)(mian)。密(mi)(mi)(mi)封(feng)凸峰部分的(de)(de)(de)(de)圈(quan)，表(biao)(biao)面(mian)(mian)(mian)研(yan)磨(mo)(mo)，然后(hou)逐漸達(da)到所要求的(de)(de)(de)(de)幾何形(xing)狀。不僅是(shi)金屬磨(mo)(mo)料(liao)的(de)(de)(de)(de)研(yan)磨(mo)(mo)加工，以及(ji)化學(xue)作用。研(yan)磨(mo)(mo)油(you)可(ke)使加工表(biao)(biao)面(mian)(mian)(mian)形(xing)成的(de)(de)(de)(de)氧化膜(mo)，從而加快研(yan)磨(mo)(mo)過程。地面(mian)(mian)(mian)運(yun)(yun)動(dong)相對運(yun)(yun)動(dong)的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)密(mi)(mi)(mi)封(feng)圈(quan)密(mi)(mi)(mi)封(feng)圈(quan)的(de)(de)(de)(de)研(yan)究(jiu)，對每(mei)個點的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上(shang)(shang)的(de)(de)(de)(de)道路和(he)相對滑動(dong)的(de)(de)(de)(de)研(yan)究(jiu)應該(gai)是(shi)一樣的(de)(de)(de)(de)。和(he)相對運(yun)(yun)動(dong)方(fang)向(xiang)改變(bian)(bian)。改變(bian)(bian)密(mi)(mi)(mi)封(feng)環(huan)內的(de)(de)(de)(de)每(mei)個粒子的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上(shang)(shang)運(yun)(yun)動(dong)的(de)(de)(de)(de)方(fang)向(xiang)不會重復他們(men)的(de)(de)(de)(de)軌跡，以避免磨(mo)(mo)損明顯增加了密(mi)(mi)(mi)封(feng)環(huan)的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)粗糙度。此外，運(yun)(yun)動(dong)方(fang)向(xiang)的(de)(de)(de)(de)改變(bian)(bian)不能使磨(mo)(mo)粒分布比較(jiao)均(jun)勻，且均(jun)勻切斷(duan)金屬密(mi)(mi)(mi)封(feng)環(huan)的(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)。

　　洞頭機械密封研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)是利用(yong)涂敷或者壓(ya)(ya)嵌(qian)游離磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)與(yu)(yu)(yu)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)劑的(de)混合物(wu)，在(zai)一定剛性的(de)軟質研(yan)(yan)(yan)(yan)(yan)(yan)具上(shang)，通過(guo)研(yan)(yan)(yan)(yan)(yan)(yan)具與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)向磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)施加(jia)(jia)(jia)(jia)一定壓(ya)(ya)力，磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)滾動(dong)(dong)(dong)與(yu)(yu)(yu)滑動(dong)(dong)(dong)，從被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)上(shang)去(qu)除(chu)極薄的(de)余量，以提高(gao)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)精度和(he)降低表(biao)(biao)(biao)面(mian)(mian)粗(cu)糙度值(zhi)得加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方法。按研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)時有無(wu)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)液(ye)可分為(wei)干研(yan)(yan)(yan)(yan)(yan)(yan)與(yu)(yu)(yu)濕(shi)研(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程中(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力下，眾多(duo)的(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)微(wei)粒(li)進(jin)(jin)行(xing)微(wei)量切削。對工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)進(jin)(jin)行(xing)擠(ji)壓(ya)(ya)、刻(ke)劃、滑擦(ca)；在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)具運動(dong)(dong)(dong)中(zhong)當研(yan)(yan)(yan)(yan)(yan)(yan)具壓(ya)(ya)嵌(qian)的(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)脫落后(hou)及液(ye)中(zhong)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)相對工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)發生滾動(dong)(dong)(dong)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程中(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力的(de)作用(yong)下，眾多(duo)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)進(jin)(jin)行(xing)微(wei)量切削，同(tong)時被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)發生微(wei)小(xiao)起(qi)(qi)伏的(de)塑(su)性變形，并(bing)且(qie)被(bei)加(jia)(jia)(jia)(jia)入的(de)諸如硬(ying)脂(zhi)酸(suan)、油(you)酸(suan)、脂(zhi)肪酸(suan)等(deng)活性物(wu)質與(yu)(yu)(yu)被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)起(qi)(qi)化學作用(yong)。隨著研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)進(jin)(jin)行(xing)，磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)具與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)間更趨(qu)貼(tie)近，其間充滿了微(wei)屑與(yu)(yu)(yu)破(po)碎(sui)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)的(de)碎(sui)渣，堵(du)塞了研(yan)(yan)(yan)(yan)(yan)(yan)具表(biao)(biao)(biao)面(mian)(mian)，對工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)起(qi)(qi)滑擦(ca)作用(yong)。所以，研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)(gong)的(de)實(shi)質是磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)的(de)微(wei)量切削、研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)微(wei)小(xiao)起(qi)(qi)伏的(de)塑(su)性流(liu)動(dong)(dong)(dong)、表(biao)(biao)(biao)面(mian)(mian)活性物(wu)質的(de)化學作用(yong)及研(yan)(yan)(yan)(yan)(yan)(yan)具堵(du)塞物(wu)與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)滑擦(ca)作用(yong)的(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洞頭機械密封將熱量傳給軸承，使軸承溫度升高(gao)。為了控制傳熱，所以密(mi)封的水也起(qi)到(dao)冷卻作(zuo)用。

　　洞頭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洞頭機械密封低壓(ya)側(大氣)將清水(shui)、蒸(zheng)汽等冷卻流(liu)體(ti)直接引入(ru)密(mi)封(feng)端泄(xie)露處的一種冷卻方式，也稱急冷，急冷不僅冷卻*，還(huan)能將密(mi)封(feng)端面(mian)周圍的雜(za)質及泄(xie)露液帶走，急冷液其壓(ya)力比(bi)密(mi)封(feng)介(jie)質壓(ya)力低。急冷液應(ying)盡量采用(yong)軟水(shui)，以防止水(shui)垢產(chan)生破壞密(mi)封(feng)端面(mian)。當密(mi)封(feng)流(liu)體(ti)為易(yi)凝(ning)固、易(yi)結晶時，可用(yong)蒸(zheng)汽、溶劑等防止流(liu)體(ti)凝(ning)結。