在研磨過程中，閥門制造的密封面是一個常用的整理方法，可以使吳中機械密封摩擦端(duan)面(mian)(mian)(mian)尺寸精(jing)度(du)(du)提(ti)高，閥門的密封面(mian)(mian)(mian)，幾何粗糙(cao)度(du)(du)和表面(mian)(mian)(mian)粗糙(cao)度(du)(du)，但不(bu)能提(ti)高密封表面(mian)(mian)(mian)的相(xiang)互位置精(jing)度(du)(du)。

　　吳中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，隨著對吳中機械密封研(yan)(yan)(yan)究(jiu)的(de)(de)(de)復雜面(mian)(mian)(mian)(mian)(mian)(mian)，之間的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)和(he)(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)磨(mo)(mo)料(liao)磨(mo)(mo)具研(yan)(yan)(yan)究(jiu)相(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)(dong)時，密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)，磨(mo)(mo)料(liao)磨(mo)(mo)具研(yan)(yan)(yan)究(jiu)部分(fen)(fen)和(he)(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)面(mian)(mian)(mian)(mian)(mian)(mian)之間的(de)(de)(de)滑動(dong)(dong)(dong)(dong)或滾動(dong)(dong)(dong)(dong)，切(qie)斷密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)上(shang)薄薄的(de)(de)(de)一層(ceng)金屬(shu)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)。密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)凸峰部分(fen)(fen)的(de)(de)(de)圈(quan)，表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)研(yan)(yan)(yan)磨(mo)(mo)，然(ran)后逐漸達到所要求的(de)(de)(de)幾何形狀。不(bu)僅是(shi)金屬(shu)磨(mo)(mo)料(liao)的(de)(de)(de)研(yan)(yan)(yan)磨(mo)(mo)加工(gong)，以(yi)及化(hua)學作用。研(yan)(yan)(yan)磨(mo)(mo)油可使(shi)加工(gong)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)形成的(de)(de)(de)氧化(hua)膜，從而加快研(yan)(yan)(yan)磨(mo)(mo)過程(cheng)。地(di)面(mian)(mian)(mian)(mian)(mian)(mian)運(yun)動(dong)(dong)(dong)(dong)相(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)(dong)的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)和(he)(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)圈(quan)的(de)(de)(de)研(yan)(yan)(yan)究(jiu)，對(dui)(dui)每個(ge)點的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)道路和(he)(he)相(xiang)對(dui)(dui)滑動(dong)(dong)(dong)(dong)的(de)(de)(de)研(yan)(yan)(yan)究(jiu)應(ying)該(gai)是(shi)一樣的(de)(de)(de)。和(he)(he)相(xiang)對(dui)(dui)運(yun)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)改(gai)(gai)變。改(gai)(gai)變密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)環(huan)內的(de)(de)(de)每個(ge)粒(li)子(zi)的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)運(yun)動(dong)(dong)(dong)(dong)的(de)(de)(de)方(fang)向(xiang)(xiang)不(bu)會重復他們的(de)(de)(de)軌跡，以(yi)避免磨(mo)(mo)損明顯增加了(le)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)環(huan)的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)粗糙度。此外，運(yun)動(dong)(dong)(dong)(dong)方(fang)向(xiang)(xiang)的(de)(de)(de)改(gai)(gai)變不(bu)能使(shi)磨(mo)(mo)粒(li)分(fen)(fen)布比(bi)較均勻，且均勻切(qie)斷金屬(shu)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)環(huan)的(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)(mian)(mian)(mian)(mian)。

　　吳中機械密封研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)是利用(yong)(yong)涂敷或(huo)者壓(ya)嵌游離(li)磨(mo)(mo)(mo)(mo)粒(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)劑(ji)的(de)(de)(de)混(hun)合物，在(zai)一定(ding)剛性(xing)的(de)(de)(de)軟質(zhi)(zhi)研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)上，通過(guo)(guo)研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)向磨(mo)(mo)(mo)(mo)料施加一定(ding)壓(ya)力，磨(mo)(mo)(mo)(mo)料滾動(dong)與(yu)(yu)滑動(dong)，從被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)(gong)件(jian)(jian)(jian)(jian)上去除極薄的(de)(de)(de)余量(liang)，以提高(gao)工(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)(de)精度和降(jiang)低表(biao)(biao)面(mian)(mian)粗糙度值得(de)加工(gong)(gong)方法(fa)。按研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)時(shi)有(you)無(wu)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)液可分為(wei)干研(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕(shi)研(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)(guo)程(cheng)中(zhong)(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力下(xia)，眾(zhong)多的(de)(de)(de)磨(mo)(mo)(mo)(mo)料微(wei)(wei)(wei)粒(li)(li)進(jin)行(xing)微(wei)(wei)(wei)量(liang)切削(xue)。對(dui)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)進(jin)行(xing)擠壓(ya)、刻劃、滑擦(ca)(ca)；在(zai)研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)運(yun)動(dong)中(zhong)(zhong)當研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)壓(ya)嵌的(de)(de)(de)磨(mo)(mo)(mo)(mo)粒(li)(li)脫(tuo)落后及液中(zhong)(zhong)磨(mo)(mo)(mo)(mo)粒(li)(li)相對(dui)工(gong)(gong)件(jian)(jian)(jian)(jian)發(fa)生滾動(dong)。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)(guo)程(cheng)中(zhong)(zhong)，在(zai)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力的(de)(de)(de)作(zuo)(zuo)(zuo)用(yong)(yong)下(xia)，眾(zhong)多磨(mo)(mo)(mo)(mo)粒(li)(li)進(jin)行(xing)微(wei)(wei)(wei)量(liang)切削(xue)，同時(shi)被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)發(fa)生微(wei)(wei)(wei)小起伏的(de)(de)(de)塑性(xing)變形(xing)，并(bing)且被(bei)加入(ru)的(de)(de)(de)諸如硬脂酸(suan)(suan)(suan)、油酸(suan)(suan)(suan)、脂肪酸(suan)(suan)(suan)等活性(xing)物質(zhi)(zhi)與(yu)(yu)被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)起化(hua)學(xue)作(zuo)(zuo)(zuo)用(yong)(yong)。隨著研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)進(jin)行(xing)，磨(mo)(mo)(mo)(mo)具(ju)(ju)與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)間更趨(qu)貼近，其間充滿了微(wei)(wei)(wei)屑與(yu)(yu)破碎(sui)磨(mo)(mo)(mo)(mo)料的(de)(de)(de)碎(sui)渣，堵塞(sai)了研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)面(mian)(mian)，對(dui)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)起滑擦(ca)(ca)作(zuo)(zuo)(zuo)用(yong)(yong)。所以，研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)實質(zhi)(zhi)是磨(mo)(mo)(mo)(mo)粒(li)(li)的(de)(de)(de)微(wei)(wei)(wei)量(liang)切削(xue)、研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)微(wei)(wei)(wei)小起伏的(de)(de)(de)塑性(xing)流動(dong)、表(biao)(biao)面(mian)(mian)活性(xing)物質(zhi)(zhi)的(de)(de)(de)化(hua)學(xue)作(zuo)(zuo)(zuo)用(yong)(yong)及研(yan)(yan)(yan)(yan)(yan)具(ju)(ju)堵塞(sai)物與(yu)(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)(biao)面(mian)(mian)滑擦(ca)(ca)作(zuo)(zuo)(zuo)用(yong)(yong)的(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吳中機械密封將熱(re)量(liang)傳(chuan)給軸承(cheng)，使(shi)軸承(cheng)溫度升高。為了控(kong)制傳(chuan)熱(re)，所以(yi)密封的水也起到(dao)冷卻作用(yong)。

　　吳中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吳中機械密封低壓側(大(da)氣)將清水、蒸汽(qi)(qi)等冷(leng)卻(que)(que)流體(ti)直接引入(ru)密(mi)封端泄露(lu)處的(de)一種冷(leng)卻(que)(que)方式(shi)，也稱急冷(leng)，急冷(leng)不僅冷(leng)卻(que)(que)*，還能將密(mi)封端面周圍的(de)雜(za)質(zhi)及泄露(lu)液帶走，急冷(leng)液其壓力比密(mi)封介質(zhi)壓力低。急冷(leng)液應盡量采用軟(ruan)水，以防(fang)止水垢產生(sheng)破(po)壞密(mi)封端面。當密(mi)封流體(ti)為易凝(ning)(ning)固、易結晶(jing)時，可用蒸汽(qi)(qi)、溶劑等防(fang)止流體(ti)凝(ning)(ning)結。