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西昌鎮研磨和冷卻對密封面都非常重要

發布時間:2021-12-17 11:54:31 人氣:98052 來源:

  在研磨過程中,閥門制造的密封面是一個常用的整理方法,可以使西昌鎮機械密封摩擦(ca)端面尺寸精(jing)度(du)提高(gao),閥(fa)門的密(mi)封面,幾(ji)何(he)粗糙(cao)度(du)和表(biao)面粗糙(cao)度(du),但(dan)不能提高(gao)密(mi)封表(biao)面的相互位置精(jing)度(du)。


  西昌鎮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,隨著對西昌鎮機械密封研(yan)究(jiu)的(de)(de)復(fu)雜面(mian)(mian)(mian)(mian)(mian),之間的(de)(de)表面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)封(feng)磨(mo)料磨(mo)具研(yan)究(jiu)相對(dui)運(yun)動時,密(mi)(mi)封(feng)圈(quan)表面(mian)(mian)(mian)(mian)(mian),磨(mo)料磨(mo)具研(yan)究(jiu)部分(fen)和(he)密(mi)(mi)封(feng)面(mian)(mian)(mian)(mian)(mian)之間的(de)(de)滑(hua)(hua)動或滾(gun)動,切(qie)斷密(mi)(mi)封(feng)圈(quan)上(shang)薄(bo)薄(bo)的(de)(de)一(yi)層金(jin)(jin)屬表面(mian)(mian)(mian)(mian)(mian)。密(mi)(mi)封(feng)凸峰部分(fen)的(de)(de)圈(quan),表面(mian)(mian)(mian)(mian)(mian)研(yan)磨(mo),然(ran)后逐漸達到所要求的(de)(de)幾(ji)何形狀。不(bu)僅是金(jin)(jin)屬磨(mo)料的(de)(de)研(yan)磨(mo)加(jia)(jia)(jia)工,以及化學作(zuo)用(yong)。研(yan)磨(mo)油可使加(jia)(jia)(jia)工表面(mian)(mian)(mian)(mian)(mian)形成的(de)(de)氧化膜(mo),從而加(jia)(jia)(jia)快研(yan)磨(mo)過(guo)程。地面(mian)(mian)(mian)(mian)(mian)運(yun)動相對(dui)運(yun)動的(de)(de)表面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)封(feng)圈(quan)密(mi)(mi)封(feng)圈(quan)的(de)(de)研(yan)究(jiu),對(dui)每個(ge)點的(de)(de)表面(mian)(mian)(mian)(mian)(mian)上(shang)的(de)(de)道路和(he)相對(dui)滑(hua)(hua)動的(de)(de)研(yan)究(jiu)應(ying)該是一(yi)樣的(de)(de)。和(he)相對(dui)運(yun)動方向改(gai)(gai)變(bian)(bian)。改(gai)(gai)變(bian)(bian)密(mi)(mi)封(feng)環(huan)內的(de)(de)每個(ge)粒(li)子的(de)(de)表面(mian)(mian)(mian)(mian)(mian)上(shang)運(yun)動的(de)(de)方向不(bu)會(hui)重復(fu)他們的(de)(de)軌跡(ji),以避(bi)免磨(mo)損明顯(xian)增加(jia)(jia)(jia)了(le)密(mi)(mi)封(feng)環(huan)的(de)(de)表面(mian)(mian)(mian)(mian)(mian)粗糙度。此外,運(yun)動方向的(de)(de)改(gai)(gai)變(bian)(bian)不(bu)能使磨(mo)粒(li)分(fen)布比(bi)較均(jun)勻,且均(jun)勻切(qie)斷金(jin)(jin)屬密(mi)(mi)封(feng)環(huan)的(de)(de)表面(mian)(mian)(mian)(mian)(mian)。

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  西昌鎮機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)是利用涂敷或者(zhe)壓嵌游離磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)與(yu)(yu)(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)混合物,在(zai)(zai)(zai)一定剛性(xing)的(de)(de)(de)軟質(zhi)(zhi)研(yan)(yan)(yan)(yan)具(ju)(ju)上,通過研(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件向磨(mo)(mo)(mo)(mo)(mo)(mo)料施加(jia)(jia)一定壓力(li)(li),磨(mo)(mo)(mo)(mo)(mo)(mo)料滾動與(yu)(yu)(yu)滑動,從被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)(gong)(gong)件上去除(chu)極薄的(de)(de)(de)余量(liang)(liang),以提高工(gong)(gong)(gong)(gong)件的(de)(de)(de)精度(du)(du)和(he)降低(di)表(biao)(biao)面粗糙度(du)(du)值得加(jia)(jia)工(gong)(gong)(gong)(gong)方(fang)法。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)時有(you)無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)液可分為(wei)干研(yan)(yan)(yan)(yan)與(yu)(yu)(yu)濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過程中(zhong),在(zai)(zai)(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓力(li)(li)下,眾多(duo)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)料微(wei)(wei)(wei)粒(li)(li)(li)進行(xing)微(wei)(wei)(wei)量(liang)(liang)切(qie)削(xue)。對(dui)(dui)工(gong)(gong)(gong)(gong)件表(biao)(biao)面進行(xing)擠壓、刻劃、滑擦;在(zai)(zai)(zai)研(yan)(yan)(yan)(yan)具(ju)(ju)運動中(zhong)當研(yan)(yan)(yan)(yan)具(ju)(ju)壓嵌的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)脫落后及液中(zhong)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)相對(dui)(dui)工(gong)(gong)(gong)(gong)件發(fa)生滾動。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過程中(zhong),在(zai)(zai)(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓力(li)(li)的(de)(de)(de)作(zuo)(zuo)用下,眾多(duo)磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)進行(xing)微(wei)(wei)(wei)量(liang)(liang)切(qie)削(xue),同時被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面發(fa)生微(wei)(wei)(wei)小起(qi)伏的(de)(de)(de)塑性(xing)變形(xing),并且(qie)被(bei)(bei)加(jia)(jia)入的(de)(de)(de)諸如硬脂酸、油酸、脂肪酸等活性(xing)物質(zhi)(zhi)與(yu)(yu)(yu)被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面起(qi)化(hua)學作(zuo)(zuo)用。隨著(zhu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)進行(xing),磨(mo)(mo)(mo)(mo)(mo)(mo)具(ju)(ju)與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件表(biao)(biao)面間更趨(qu)貼近,其(qi)間充滿了(le)微(wei)(wei)(wei)屑與(yu)(yu)(yu)破碎磨(mo)(mo)(mo)(mo)(mo)(mo)料的(de)(de)(de)碎渣,堵塞了(le)研(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)面,對(dui)(dui)工(gong)(gong)(gong)(gong)件表(biao)(biao)面起(qi)滑擦作(zuo)(zuo)用。所以,研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)(gong)(gong)的(de)(de)(de)實質(zhi)(zhi)是磨(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)的(de)(de)(de)微(wei)(wei)(wei)量(liang)(liang)切(qie)削(xue)、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面微(wei)(wei)(wei)小起(qi)伏的(de)(de)(de)塑性(xing)流(liu)動、表(biao)(biao)面活性(xing)物質(zhi)(zhi)的(de)(de)(de)化(hua)學作(zuo)(zuo)用及研(yan)(yan)(yan)(yan)具(ju)(ju)堵塞物與(yu)(yu)(yu)工(gong)(gong)(gong)(gong)件表(biao)(biao)面滑擦作(zuo)(zuo)用的(de)(de)(de)綜合結果(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西昌鎮機械密封將熱量傳給軸(zhou)承(cheng),使(shi)軸(zhou)承(cheng)溫度升高。為了控(kong)制傳熱,所以密封的水也(ye)起(qi)到冷卻作用(yong)。


  西昌鎮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西昌鎮機械密封低壓(ya)側(ce)(大氣)將清水、蒸汽等(deng)冷(leng)(leng)卻流(liu)體直接引入密(mi)封端泄露(lu)處的一(yi)種冷(leng)(leng)卻方式,也稱急冷(leng)(leng),急冷(leng)(leng)不僅冷(leng)(leng)卻*,還能將密(mi)封端面周圍的雜(za)質(zhi)及泄露(lu)液帶走,急冷(leng)(leng)液其壓(ya)力(li)比密(mi)封介質(zhi)壓(ya)力(li)低。急冷(leng)(leng)液應(ying)盡量(liang)采用軟(ruan)水,以(yi)防止(zhi)(zhi)水垢產生破壞密(mi)封端面。當密(mi)封流(liu)體為易凝(ning)固、易結晶時,可用蒸汽、溶(rong)劑等(deng)防止(zhi)(zhi)流(liu)體凝(ning)結。