在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使平遠機械密封摩擦端面(mian)(mian)尺寸精度提(ti)(ti)高，閥門的密封(feng)面(mian)(mian)，幾何粗(cu)糙度和表(biao)面(mian)(mian)粗(cu)糙度，但不(bu)能提(ti)(ti)高密封(feng)表(biao)面(mian)(mian)的相互位置精度。

　　平遠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，隨著對平遠機械密封研(yan)究的(de)(de)(de)(de)(de)(de)(de)復雜面(mian)(mian)(mian)(mian)(mian)，之(zhi)間的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)封(feng)磨(mo)(mo)料(liao)(liao)磨(mo)(mo)具(ju)研(yan)究相(xiang)對(dui)(dui)運動(dong)(dong)(dong)時，密(mi)(mi)封(feng)圈(quan)(quan)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)，磨(mo)(mo)料(liao)(liao)磨(mo)(mo)具(ju)研(yan)究部分和(he)密(mi)(mi)封(feng)面(mian)(mian)(mian)(mian)(mian)之(zhi)間的(de)(de)(de)(de)(de)(de)(de)滑動(dong)(dong)(dong)或(huo)滾動(dong)(dong)(dong)，切斷密(mi)(mi)封(feng)圈(quan)(quan)上薄(bo)薄(bo)的(de)(de)(de)(de)(de)(de)(de)一層金屬(shu)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)。密(mi)(mi)封(feng)凸峰部分的(de)(de)(de)(de)(de)(de)(de)圈(quan)(quan)，表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)研(yan)磨(mo)(mo)，然(ran)后逐漸達(da)到所要求的(de)(de)(de)(de)(de)(de)(de)幾何(he)形狀。不(bu)僅(jin)是(shi)(shi)金屬(shu)磨(mo)(mo)料(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)研(yan)磨(mo)(mo)加(jia)工，以(yi)及化(hua)(hua)學作用。研(yan)磨(mo)(mo)油(you)可(ke)使(shi)加(jia)工表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)形成的(de)(de)(de)(de)(de)(de)(de)氧化(hua)(hua)膜，從(cong)而加(jia)快研(yan)磨(mo)(mo)過程。地面(mian)(mian)(mian)(mian)(mian)運動(dong)(dong)(dong)相(xiang)對(dui)(dui)運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)封(feng)圈(quan)(quan)密(mi)(mi)封(feng)圈(quan)(quan)的(de)(de)(de)(de)(de)(de)(de)研(yan)究，對(dui)(dui)每個(ge)點的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)上的(de)(de)(de)(de)(de)(de)(de)道路(lu)和(he)相(xiang)對(dui)(dui)滑動(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)研(yan)究應該(gai)是(shi)(shi)一樣(yang)的(de)(de)(de)(de)(de)(de)(de)。和(he)相(xiang)對(dui)(dui)運動(dong)(dong)(dong)方(fang)向改變。改變密(mi)(mi)封(feng)環內(nei)的(de)(de)(de)(de)(de)(de)(de)每個(ge)粒子的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)上運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)方(fang)向不(bu)會重(zhong)復他們的(de)(de)(de)(de)(de)(de)(de)軌跡，以(yi)避免磨(mo)(mo)損(sun)明顯增加(jia)了密(mi)(mi)封(feng)環的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)粗糙度。此外，運動(dong)(dong)(dong)方(fang)向的(de)(de)(de)(de)(de)(de)(de)改變不(bu)能使(shi)磨(mo)(mo)粒分布比較均(jun)勻，且均(jun)勻切斷金屬(shu)密(mi)(mi)封(feng)環的(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)(mian)(mian)。

　　平遠機械密封研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)是利用(yong)涂敷(fu)或者壓嵌游離(li)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)混合(he)物(wu)，在(zai)(zai)一(yi)定(ding)剛性的(de)(de)(de)軟質(zhi)(zhi)研(yan)(yan)(yan)(yan)(yan)具(ju)上，通過(guo)研(yan)(yan)(yan)(yan)(yan)具(ju)與(yu)(yu)工(gong)件(jian)(jian)(jian)向磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)施加一(yi)定(ding)壓力(li)，磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)滾動(dong)(dong)與(yu)(yu)滑(hua)動(dong)(dong)，從(cong)被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)工(gong)件(jian)(jian)(jian)上去除(chu)極薄的(de)(de)(de)余量(liang)，以(yi)提高工(gong)件(jian)(jian)(jian)的(de)(de)(de)精(jing)度和降低表面(mian)(mian)(mian)(mian)粗(cu)糙度值得加工(gong)方法(fa)。按(an)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)時(shi)有無研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)液可分為干研(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程中，在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓力(li)下，眾(zhong)多(duo)(duo)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)微(wei)(wei)粒(li)(li)進(jin)(jin)(jin)行(xing)微(wei)(wei)量(liang)切(qie)削(xue)。對(dui)(dui)工(gong)件(jian)(jian)(jian)表面(mian)(mian)(mian)(mian)進(jin)(jin)(jin)行(xing)擠壓、刻劃、滑(hua)擦(ca)(ca)；在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)具(ju)運動(dong)(dong)中當研(yan)(yan)(yan)(yan)(yan)具(ju)壓嵌的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)脫落(luo)后及(ji)液中磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)相對(dui)(dui)工(gong)件(jian)(jian)(jian)發生滾動(dong)(dong)。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程中，在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓力(li)的(de)(de)(de)作(zuo)用(yong)下，眾(zhong)多(duo)(duo)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)進(jin)(jin)(jin)行(xing)微(wei)(wei)量(liang)切(qie)削(xue)，同(tong)時(shi)被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表面(mian)(mian)(mian)(mian)發生微(wei)(wei)小起(qi)伏的(de)(de)(de)塑性變形，并且被(bei)(bei)加入的(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(zhi)(zhi)與(yu)(yu)被(bei)(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表面(mian)(mian)(mian)(mian)起(qi)化學(xue)作(zuo)用(yong)。隨著研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)的(de)(de)(de)進(jin)(jin)(jin)行(xing)，磨(mo)(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)(yu)工(gong)件(jian)(jian)(jian)表面(mian)(mian)(mian)(mian)間更趨貼近，其(qi)間充滿了微(wei)(wei)屑與(yu)(yu)破碎(sui)磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)的(de)(de)(de)碎(sui)渣，堵塞(sai)(sai)了研(yan)(yan)(yan)(yan)(yan)具(ju)表面(mian)(mian)(mian)(mian)，對(dui)(dui)工(gong)件(jian)(jian)(jian)表面(mian)(mian)(mian)(mian)起(qi)滑(hua)擦(ca)(ca)作(zuo)用(yong)。所以(yi)，研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)的(de)(de)(de)實質(zhi)(zhi)是磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)的(de)(de)(de)微(wei)(wei)量(liang)切(qie)削(xue)、研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表面(mian)(mian)(mian)(mian)微(wei)(wei)小起(qi)伏的(de)(de)(de)塑性流(liu)動(dong)(dong)、表面(mian)(mian)(mian)(mian)活性物(wu)質(zhi)(zhi)的(de)(de)(de)化學(xue)作(zuo)用(yong)及(ji)研(yan)(yan)(yan)(yan)(yan)具(ju)堵塞(sai)(sai)物(wu)與(yu)(yu)工(gong)件(jian)(jian)(jian)表面(mian)(mian)(mian)(mian)滑(hua)擦(ca)(ca)作(zuo)用(yong)的(de)(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平遠機械密封將熱量傳給軸承(cheng)，使軸承(cheng)溫度(du)升高。為(wei)了控制傳熱，所以密封(feng)的水也起(qi)到(dao)冷卻作用。

　　平遠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平遠機械密封低(di)壓側(大氣)將清水、蒸(zheng)汽等冷(leng)(leng)卻流(liu)體(ti)直接引入密(mi)(mi)封(feng)端(duan)泄露(lu)處(chu)的一(yi)種冷(leng)(leng)卻方式，也(ye)稱急(ji)冷(leng)(leng)，急(ji)冷(leng)(leng)不僅(jin)冷(leng)(leng)卻*，還能(neng)將密(mi)(mi)封(feng)端(duan)面周圍(wei)的雜(za)質(zhi)及泄露(lu)液(ye)帶走(zou)，急(ji)冷(leng)(leng)液(ye)其壓力比密(mi)(mi)封(feng)介質(zhi)壓力低(di)。急(ji)冷(leng)(leng)液(ye)應(ying)盡(jin)量(liang)采用(yong)(yong)軟水，以防止(zhi)水垢(gou)產生破壞(huai)密(mi)(mi)封(feng)端(duan)面。當密(mi)(mi)封(feng)流(liu)體(ti)為易(yi)凝固、易(yi)結晶時，可用(yong)(yong)蒸(zheng)汽、溶劑等防止(zhi)流(liu)體(ti)凝結。