在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使延長機械密封摩(mo)擦端(duan)面尺寸(cun)精度提(ti)高，閥門(men)的密封(feng)面，幾何粗(cu)糙度和表(biao)面粗(cu)糙度，但不能(neng)提(ti)高密封(feng)表(biao)面的相互位(wei)置(zhi)精度。

　　延長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，隨著對延長機械密封研(yan)(yan)(yan)(yan)(yan)(yan)究(jiu)的(de)(de)(de)(de)(de)復(fu)雜(za)面(mian)(mian)(mian)(mian)，之間的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)和(he)(he)密(mi)封(feng)磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具研(yan)(yan)(yan)(yan)(yan)(yan)究(jiu)相(xiang)對(dui)(dui)運(yun)動(dong)時，密(mi)封(feng)圈(quan)表(biao)(biao)面(mian)(mian)(mian)(mian)，磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具研(yan)(yan)(yan)(yan)(yan)(yan)究(jiu)部分和(he)(he)密(mi)封(feng)面(mian)(mian)(mian)(mian)之間的(de)(de)(de)(de)(de)滑動(dong)或滾動(dong)，切斷密(mi)封(feng)圈(quan)上(shang)薄薄的(de)(de)(de)(de)(de)一層金屬(shu)表(biao)(biao)面(mian)(mian)(mian)(mian)。密(mi)封(feng)凸峰部分的(de)(de)(de)(de)(de)圈(quan)，表(biao)(biao)面(mian)(mian)(mian)(mian)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)，然后逐漸達到所要求的(de)(de)(de)(de)(de)幾何形(xing)(xing)狀。不(bu)(bu)僅是(shi)金屬(shu)磨(mo)(mo)(mo)料的(de)(de)(de)(de)(de)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加(jia)工，以(yi)及化學作用。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)油可(ke)使加(jia)工表(biao)(biao)面(mian)(mian)(mian)(mian)形(xing)(xing)成的(de)(de)(de)(de)(de)氧(yang)化膜(mo)，從而(er)加(jia)快研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過(guo)程。地面(mian)(mian)(mian)(mian)運(yun)動(dong)相(xiang)對(dui)(dui)運(yun)動(dong)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)和(he)(he)密(mi)封(feng)圈(quan)密(mi)封(feng)圈(quan)的(de)(de)(de)(de)(de)研(yan)(yan)(yan)(yan)(yan)(yan)究(jiu)，對(dui)(dui)每個點的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)(de)(de)道(dao)路和(he)(he)相(xiang)對(dui)(dui)滑動(dong)的(de)(de)(de)(de)(de)研(yan)(yan)(yan)(yan)(yan)(yan)究(jiu)應該是(shi)一樣的(de)(de)(de)(de)(de)。和(he)(he)相(xiang)對(dui)(dui)運(yun)動(dong)方向(xiang)改變(bian)。改變(bian)密(mi)封(feng)環內(nei)的(de)(de)(de)(de)(de)每個粒(li)子的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)上(shang)運(yun)動(dong)的(de)(de)(de)(de)(de)方向(xiang)不(bu)(bu)會重復(fu)他們的(de)(de)(de)(de)(de)軌跡，以(yi)避免磨(mo)(mo)(mo)損明顯(xian)增(zeng)加(jia)了密(mi)封(feng)環的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)粗糙度。此(ci)外，運(yun)動(dong)方向(xiang)的(de)(de)(de)(de)(de)改變(bian)不(bu)(bu)能(neng)使磨(mo)(mo)(mo)粒(li)分布比較(jiao)均勻，且均勻切斷金屬(shu)密(mi)封(feng)環的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)。

　　延長機械密封研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)是利用(yong)涂敷(fu)或(huo)者壓嵌游離磨(mo)(mo)(mo)(mo)粒(li)與(yu)(yu)研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)劑的(de)(de)(de)(de)混(hun)合物(wu)，在(zai)一(yi)定剛性的(de)(de)(de)(de)軟質研(yan)(yan)(yan)具(ju)上，通過(guo)研(yan)(yan)(yan)具(ju)與(yu)(yu)工(gong)件(jian)(jian)(jian)向磨(mo)(mo)(mo)(mo)料施加(jia)(jia)(jia)一(yi)定壓力，磨(mo)(mo)(mo)(mo)料滾動(dong)與(yu)(yu)滑(hua)動(dong)，從被研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)件(jian)(jian)(jian)上去除(chu)極薄的(de)(de)(de)(de)余量(liang)，以提高工(gong)件(jian)(jian)(jian)的(de)(de)(de)(de)精度和(he)降低表(biao)面(mian)(mian)(mian)粗糙度值得加(jia)(jia)(jia)工(gong)方(fang)法。按研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)時有無研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)液(ye)可分為干研(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)。研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程(cheng)中(zhong)，在(zai)研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓力下(xia)，眾多(duo)的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)料微(wei)粒(li)進行微(wei)量(liang)切(qie)削(xue)(xue)。對(dui)工(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)進行擠壓、刻劃、滑(hua)擦；在(zai)研(yan)(yan)(yan)具(ju)運(yun)動(dong)中(zhong)當研(yan)(yan)(yan)具(ju)壓嵌的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)粒(li)脫落(luo)后及液(ye)中(zhong)磨(mo)(mo)(mo)(mo)粒(li)相對(dui)工(gong)件(jian)(jian)(jian)發生(sheng)滾動(dong)。研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程(cheng)中(zhong)，在(zai)研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓力的(de)(de)(de)(de)作(zuo)用(yong)下(xia)，眾多(duo)磨(mo)(mo)(mo)(mo)粒(li)進行微(wei)量(liang)切(qie)削(xue)(xue)，同時被研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)發生(sheng)微(wei)小(xiao)起伏的(de)(de)(de)(de)塑(su)性變(bian)形，并且被加(jia)(jia)(jia)入(ru)的(de)(de)(de)(de)諸如(ru)硬脂(zhi)酸(suan)、油酸(suan)、脂(zhi)肪酸(suan)等活性物(wu)質與(yu)(yu)被研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)起化學(xue)作(zuo)用(yong)。隨著(zhu)研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)(jia)(jia)工(gong)的(de)(de)(de)(de)進行，磨(mo)(mo)(mo)(mo)具(ju)與(yu)(yu)工(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)間更趨貼近，其間充滿了微(wei)屑與(yu)(yu)破碎磨(mo)(mo)(mo)(mo)料的(de)(de)(de)(de)碎渣，堵(du)塞了研(yan)(yan)(yan)具(ju)表(biao)面(mian)(mian)(mian)，對(dui)工(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)起滑(hua)擦作(zuo)用(yong)。所(suo)以，研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)(jia)(jia)工(gong)的(de)(de)(de)(de)實質是磨(mo)(mo)(mo)(mo)粒(li)的(de)(de)(de)(de)微(wei)量(liang)切(qie)削(xue)(xue)、研(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)微(wei)小(xiao)起伏的(de)(de)(de)(de)塑(su)性流動(dong)、表(biao)面(mian)(mian)(mian)活性物(wu)質的(de)(de)(de)(de)化學(xue)作(zuo)用(yong)及研(yan)(yan)(yan)具(ju)堵(du)塞物(wu)與(yu)(yu)工(gong)件(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)滑(hua)擦作(zuo)用(yong)的(de)(de)(de)(de)綜合結(jie)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延長機械密封將熱量傳給軸(zhou)承(cheng)(cheng)，使軸(zhou)承(cheng)(cheng)溫度(du)升高。為(wei)了控制傳熱，所以密封的水也(ye)起到冷(leng)卻(que)作用(yong)。

　　延長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延長機械密封低壓(ya)(ya)側(大氣)將(jiang)清水(shui)、蒸汽等冷(leng)(leng)卻流體(ti)直(zhi)接引入密封(feng)端泄(xie)露處的一種冷(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(jiang)密封(feng)端面(mian)周圍的雜質及泄(xie)露液(ye)帶(dai)走，急冷(leng)(leng)液(ye)其壓(ya)(ya)力比密封(feng)介(jie)質壓(ya)(ya)力低。急冷(leng)(leng)液(ye)應盡量采(cai)用(yong)軟水(shui)，以防止水(shui)垢產生破壞密封(feng)端面(mian)。當密封(feng)流體(ti)為易(yi)凝固(gu)、易(yi)結晶時(shi)，可用(yong)蒸汽、溶劑等防止流體(ti)凝結。