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建華研磨和冷卻對密封面都非常重要

發布時(shi)間:2021-12-17 11:54:31 人氣:97759 來源(yuan):

  在研磨過程中,閥門制造的密封面是一個常用的整理方法,可以使建華機械密封摩擦端面(mian)(mian)尺(chi)寸精度(du)提(ti)高(gao),閥(fa)門(men)的密(mi)封(feng)面(mian)(mian),幾(ji)何(he)粗糙(cao)度(du)和表(biao)面(mian)(mian)粗糙(cao)度(du),但(dan)不能提(ti)高(gao)密(mi)封(feng)表(biao)面(mian)(mian)的相互(hu)位(wei)置(zhi)精度(du)。


  建華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,隨著對建華機械密封研(yan)(yan)(yan)(yan)究的(de)(de)(de)復(fu)雜面(mian)(mian)(mian)(mian)(mian),之間的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)(mi)(mi)封(feng)磨(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)具(ju)(ju)研(yan)(yan)(yan)(yan)究相(xiang)(xiang)對(dui)運(yun)動(dong)(dong)時,密(mi)(mi)(mi)(mi)封(feng)圈表面(mian)(mian)(mian)(mian)(mian),磨(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)具(ju)(ju)研(yan)(yan)(yan)(yan)究部分和(he)密(mi)(mi)(mi)(mi)封(feng)面(mian)(mian)(mian)(mian)(mian)之間的(de)(de)(de)滑動(dong)(dong)或滾(gun)動(dong)(dong),切斷密(mi)(mi)(mi)(mi)封(feng)圈上(shang)薄薄的(de)(de)(de)一層金(jin)屬表面(mian)(mian)(mian)(mian)(mian)。密(mi)(mi)(mi)(mi)封(feng)凸峰部分的(de)(de)(de)圈,表面(mian)(mian)(mian)(mian)(mian)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo),然后逐漸(jian)達到所(suo)要(yao)求的(de)(de)(de)幾何形狀。不(bu)(bu)僅是(shi)金(jin)屬磨(mo)(mo)(mo)(mo)料(liao)(liao)的(de)(de)(de)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加工(gong),以及化(hua)學作(zuo)用(yong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)油可使(shi)加工(gong)表面(mian)(mian)(mian)(mian)(mian)形成(cheng)的(de)(de)(de)氧化(hua)膜,從(cong)而加快研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程。地面(mian)(mian)(mian)(mian)(mian)運(yun)動(dong)(dong)相(xiang)(xiang)對(dui)運(yun)動(dong)(dong)的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)和(he)密(mi)(mi)(mi)(mi)封(feng)圈密(mi)(mi)(mi)(mi)封(feng)圈的(de)(de)(de)研(yan)(yan)(yan)(yan)究,對(dui)每個點的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)道路和(he)相(xiang)(xiang)對(dui)滑動(dong)(dong)的(de)(de)(de)研(yan)(yan)(yan)(yan)究應該是(shi)一樣的(de)(de)(de)。和(he)相(xiang)(xiang)對(dui)運(yun)動(dong)(dong)方(fang)向改變。改變密(mi)(mi)(mi)(mi)封(feng)環內的(de)(de)(de)每個粒子的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)上(shang)運(yun)動(dong)(dong)的(de)(de)(de)方(fang)向不(bu)(bu)會重復(fu)他們(men)的(de)(de)(de)軌跡,以避(bi)免磨(mo)(mo)(mo)(mo)損明顯增加了密(mi)(mi)(mi)(mi)封(feng)環的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)粗糙度(du)。此(ci)外,運(yun)動(dong)(dong)方(fang)向的(de)(de)(de)改變不(bu)(bu)能使(shi)磨(mo)(mo)(mo)(mo)粒分布比較均(jun)(jun)勻,且均(jun)(jun)勻切斷金(jin)屬密(mi)(mi)(mi)(mi)封(feng)環的(de)(de)(de)表面(mian)(mian)(mian)(mian)(mian)。

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  建華機械密封研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)是利(li)用(yong)涂敷或者壓(ya)(ya)嵌游離磨(mo)(mo)(mo)(mo)(mo)(mo)粒與(yu)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)劑(ji)的(de)(de)混合物(wu),在(zai)(zai)一定剛性的(de)(de)軟(ruan)質(zhi)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)上,通過研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)與(yu)工(gong)(gong)件(jian)向磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)施加(jia)(jia)一定壓(ya)(ya)力,磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)滾動(dong)與(yu)滑動(dong),從被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)件(jian)上去(qu)除極薄的(de)(de)余量,以(yi)提高工(gong)(gong)件(jian)的(de)(de)精(jing)度(du)和降(jiang)低表(biao)(biao)(biao)面(mian)(mian)粗(cu)糙度(du)值得加(jia)(jia)工(gong)(gong)方(fang)法。按研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)時(shi)有無研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)液可分為干研(yan)(yan)(yan)(yan)(yan)(yan)(yan)與(yu)濕研(yan)(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過程中,在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力下(xia),眾多的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)微粒進行(xing)微量切(qie)削(xue)。對工(gong)(gong)件(jian)表(biao)(biao)(biao)面(mian)(mian)進行(xing)擠壓(ya)(ya)、刻劃、滑擦;在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)運動(dong)中當研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)壓(ya)(ya)嵌的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)粒脫落后及液中磨(mo)(mo)(mo)(mo)(mo)(mo)粒相對工(gong)(gong)件(jian)發生滾動(dong)。研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)過程中,在(zai)(zai)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力的(de)(de)作用(yong)下(xia),眾多磨(mo)(mo)(mo)(mo)(mo)(mo)粒進行(xing)微量切(qie)削(xue),同時(shi)被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)發生微小起(qi)伏的(de)(de)塑(su)性變(bian)形,并且被(bei)加(jia)(jia)入的(de)(de)諸如硬脂酸(suan)、油(you)酸(suan)、脂肪酸(suan)等活性物(wu)質(zhi)與(yu)被(bei)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)起(qi)化(hua)(hua)學作用(yong)。隨著研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)的(de)(de)進行(xing),磨(mo)(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)工(gong)(gong)件(jian)表(biao)(biao)(biao)面(mian)(mian)間(jian)更趨貼近(jin),其間(jian)充滿(man)了(le)微屑與(yu)破碎磨(mo)(mo)(mo)(mo)(mo)(mo)料(liao)的(de)(de)碎渣,堵(du)塞了(le)研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)表(biao)(biao)(biao)面(mian)(mian),對工(gong)(gong)件(jian)表(biao)(biao)(biao)面(mian)(mian)起(qi)滑擦作用(yong)。所以(yi),研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)(gong)的(de)(de)實(shi)質(zhi)是磨(mo)(mo)(mo)(mo)(mo)(mo)粒的(de)(de)微量切(qie)削(xue)、研(yan)(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)微小起(qi)伏的(de)(de)塑(su)性流動(dong)、表(biao)(biao)(biao)面(mian)(mian)活性物(wu)質(zhi)的(de)(de)化(hua)(hua)學作用(yong)及研(yan)(yan)(yan)(yan)(yan)(yan)(yan)具(ju)堵(du)塞物(wu)與(yu)工(gong)(gong)件(jian)表(biao)(biao)(biao)面(mian)(mian)滑擦作用(yong)的(de)(de)綜(zong)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建華機械密封將熱(re)量傳給軸承(cheng),使軸承(cheng)溫度升高。為了(le)控制(zhi)傳熱(re),所以密封的水也起(qi)到(dao)冷卻作用。


  建華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建華機械密封低(di)壓側(大氣)將(jiang)清(qing)水(shui)、蒸(zheng)(zheng)汽等冷(leng)卻(que)(que)流(liu)體(ti)直接引入密(mi)封(feng)(feng)端(duan)泄露處的一(yi)種冷(leng)卻(que)(que)方式(shi),也(ye)稱急冷(leng),急冷(leng)不僅冷(leng)卻(que)(que)*,還能將(jiang)密(mi)封(feng)(feng)端(duan)面周圍的雜(za)質及泄露液帶(dai)走,急冷(leng)液其壓力比密(mi)封(feng)(feng)介質壓力低(di)。急冷(leng)液應盡量采用軟水(shui),以(yi)防止(zhi)水(shui)垢產生破壞(huai)密(mi)封(feng)(feng)端(duan)面。當密(mi)封(feng)(feng)流(liu)體(ti)為易凝固、易結晶時,可用蒸(zheng)(zheng)汽、溶劑等防止(zhi)流(liu)體(ti)凝結。