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紅原研磨和冷卻對密封面都非常重要

發(fa)布時間:2021-12-17 11:54:31 人(ren)氣(qi):98106 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,可以使紅原機械密封摩擦端(duan)面(mian)尺寸精度(du)提高,閥門的(de)密封面(mian),幾(ji)何(he)粗糙(cao)度(du)和(he)表(biao)面(mian)粗糙(cao)度(du),但不能提高密封表(biao)面(mian)的(de)相(xiang)互位置(zhi)精度(du)。


  紅原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,隨著對紅原機械密封研(yan)究(jiu)(jiu)(jiu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)復(fu)雜面(mian)(mian),之間的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)和(he)密(mi)(mi)封(feng)磨(mo)(mo)料(liao)磨(mo)(mo)具研(yan)究(jiu)(jiu)(jiu)相(xiang)(xiang)對運(yun)(yun)(yun)動(dong)時,密(mi)(mi)封(feng)圈表(biao)(biao)(biao)(biao)面(mian)(mian),磨(mo)(mo)料(liao)磨(mo)(mo)具研(yan)究(jiu)(jiu)(jiu)部(bu)(bu)分和(he)密(mi)(mi)封(feng)面(mian)(mian)之間的(de)(de)(de)(de)(de)(de)(de)(de)(de)滑動(dong)或滾動(dong),切(qie)斷密(mi)(mi)封(feng)圈上薄薄的(de)(de)(de)(de)(de)(de)(de)(de)(de)一層金(jin)屬表(biao)(biao)(biao)(biao)面(mian)(mian)。密(mi)(mi)封(feng)凸峰部(bu)(bu)分的(de)(de)(de)(de)(de)(de)(de)(de)(de)圈,表(biao)(biao)(biao)(biao)面(mian)(mian)研(yan)磨(mo)(mo),然后逐漸達到所(suo)要求的(de)(de)(de)(de)(de)(de)(de)(de)(de)幾何形(xing)狀。不僅是(shi)金(jin)屬磨(mo)(mo)料(liao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)研(yan)磨(mo)(mo)加(jia)工,以及化(hua)學作用。研(yan)磨(mo)(mo)油可使加(jia)工表(biao)(biao)(biao)(biao)面(mian)(mian)形(xing)成的(de)(de)(de)(de)(de)(de)(de)(de)(de)氧化(hua)膜,從而加(jia)快研(yan)磨(mo)(mo)過程(cheng)。地面(mian)(mian)運(yun)(yun)(yun)動(dong)相(xiang)(xiang)對運(yun)(yun)(yun)動(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)和(he)密(mi)(mi)封(feng)圈密(mi)(mi)封(feng)圈的(de)(de)(de)(de)(de)(de)(de)(de)(de)研(yan)究(jiu)(jiu)(jiu),對每(mei)個點的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)道路和(he)相(xiang)(xiang)對滑動(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)研(yan)究(jiu)(jiu)(jiu)應該是(shi)一樣的(de)(de)(de)(de)(de)(de)(de)(de)(de)。和(he)相(xiang)(xiang)對運(yun)(yun)(yun)動(dong)方(fang)向改(gai)變(bian)。改(gai)變(bian)密(mi)(mi)封(feng)環內的(de)(de)(de)(de)(de)(de)(de)(de)(de)每(mei)個粒子的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)上運(yun)(yun)(yun)動(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)方(fang)向不會重(zhong)復(fu)他們的(de)(de)(de)(de)(de)(de)(de)(de)(de)軌跡,以避免磨(mo)(mo)損明顯(xian)增加(jia)了密(mi)(mi)封(feng)環的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)粗糙(cao)度。此外,運(yun)(yun)(yun)動(dong)方(fang)向的(de)(de)(de)(de)(de)(de)(de)(de)(de)改(gai)變(bian)不能使磨(mo)(mo)粒分布比較(jiao)均勻,且均勻切(qie)斷金(jin)屬密(mi)(mi)封(feng)環的(de)(de)(de)(de)(de)(de)(de)(de)(de)表(biao)(biao)(biao)(biao)面(mian)(mian)。

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  紅原機械密封研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)是(shi)利用(yong)(yong)涂敷(fu)或者壓(ya)嵌游離磨(mo)(mo)(mo)(mo)粒與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)劑(ji)的(de)混合物(wu)(wu),在(zai)一(yi)定剛性的(de)軟質(zhi)(zhi)(zhi)研(yan)(yan)(yan)(yan)(yan)(yan)具上,通過(guo)(guo)研(yan)(yan)(yan)(yan)(yan)(yan)具與(yu)(yu)工(gong)(gong)(gong)件(jian)向磨(mo)(mo)(mo)(mo)料(liao)施加(jia)一(yi)定壓(ya)力(li),磨(mo)(mo)(mo)(mo)料(liao)滾動(dong)與(yu)(yu)滑動(dong),從被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)(gong)(gong)件(jian)上去除極薄的(de)余量(liang),以提高(gao)工(gong)(gong)(gong)件(jian)的(de)精度(du)和降低表(biao)面(mian)(mian)(mian)(mian)粗糙(cao)度(du)值得加(jia)工(gong)(gong)(gong)方法(fa)。按研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)時有(you)無研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)液(ye)可分為干(gan)研(yan)(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕(shi)研(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong),在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力(li)下,眾多的(de)磨(mo)(mo)(mo)(mo)料(liao)微粒進(jin)行(xing)(xing)微量(liang)切削。對工(gong)(gong)(gong)件(jian)表(biao)面(mian)(mian)(mian)(mian)進(jin)行(xing)(xing)擠壓(ya)、刻劃、滑擦;在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)具運動(dong)中(zhong)當(dang)研(yan)(yan)(yan)(yan)(yan)(yan)具壓(ya)嵌的(de)磨(mo)(mo)(mo)(mo)粒脫(tuo)落后及(ji)液(ye)中(zhong)磨(mo)(mo)(mo)(mo)粒相對工(gong)(gong)(gong)件(jian)發生(sheng)滾動(dong)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong),在(zai)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力(li)的(de)作(zuo)用(yong)(yong)下,眾多磨(mo)(mo)(mo)(mo)粒進(jin)行(xing)(xing)微量(liang)切削,同時被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)(mian)發生(sheng)微小起伏的(de)塑性變形,并(bing)且被(bei)加(jia)入(ru)的(de)諸如(ru)硬脂(zhi)酸、油酸、脂(zhi)肪酸等活(huo)性物(wu)(wu)質(zhi)(zhi)(zhi)與(yu)(yu)被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)(mian)起化(hua)學作(zuo)用(yong)(yong)。隨著(zhu)研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)(gong)的(de)進(jin)行(xing)(xing),磨(mo)(mo)(mo)(mo)具與(yu)(yu)工(gong)(gong)(gong)件(jian)表(biao)面(mian)(mian)(mian)(mian)間(jian)更(geng)趨(qu)貼近,其間(jian)充滿了微屑(xie)與(yu)(yu)破(po)碎(sui)磨(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)面(mian)(mian)(mian)(mian),對工(gong)(gong)(gong)件(jian)表(biao)面(mian)(mian)(mian)(mian)起滑擦作(zuo)用(yong)(yong)。所以,研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)(gong)的(de)實質(zhi)(zhi)(zhi)是(shi)磨(mo)(mo)(mo)(mo)粒的(de)微量(liang)切削、研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)(mian)微小起伏的(de)塑性流動(dong)、表(biao)面(mian)(mian)(mian)(mian)活(huo)性物(wu)(wu)質(zhi)(zhi)(zhi)的(de)化(hua)學作(zuo)用(yong)(yong)及(ji)研(yan)(yan)(yan)(yan)(yan)(yan)具堵(du)塞物(wu)(wu)與(yu)(yu)工(gong)(gong)(gong)件(jian)表(biao)面(mian)(mian)(mian)(mian)滑擦作(zuo)用(yong)(yong)的(de)綜(zong)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紅原機械密封將熱量傳給軸承,使軸承溫度升高。為了控(kong)制傳熱,所(suo)以密封(feng)的水也起到冷卻作用。


  紅原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紅原機械密封低壓(ya)側(ce)(大氣)將清水(shui)、蒸汽等冷(leng)卻流體(ti)直(zhi)接引入密(mi)封(feng)(feng)(feng)(feng)端(duan)泄(xie)露(lu)處的一種冷(leng)卻方(fang)式,也稱急冷(leng),急冷(leng)不僅冷(leng)卻*,還(huan)能(neng)將密(mi)封(feng)(feng)(feng)(feng)端(duan)面(mian)周圍的雜質(zhi)及泄(xie)露(lu)液(ye)帶走,急冷(leng)液(ye)其壓(ya)力比密(mi)封(feng)(feng)(feng)(feng)介質(zhi)壓(ya)力低。急冷(leng)液(ye)應盡量采用軟水(shui),以防止水(shui)垢產生破壞(huai)密(mi)封(feng)(feng)(feng)(feng)端(duan)面(mian)。當密(mi)封(feng)(feng)(feng)(feng)流體(ti)為易(yi)凝(ning)(ning)固(gu)、易(yi)結(jie)晶時(shi),可用蒸汽、溶劑等防止流體(ti)凝(ning)(ning)結(jie)。