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房縣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 人氣:98885 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,可以使房縣機械密封摩擦端面(mian)尺寸精(jing)度(du)提高(gao),閥(fa)門的密封(feng)面(mian),幾(ji)何粗糙度(du)和表面(mian)粗糙度(du),但(dan)不能提高(gao)密封(feng)表面(mian)的相互位置精(jing)度(du)。


  房縣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,隨著對房縣機械密封研(yan)(yan)究(jiu)的(de)(de)(de)(de)(de)復(fu)雜面(mian)(mian)(mian),之間的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和密(mi)(mi)(mi)(mi)封磨(mo)料磨(mo)具研(yan)(yan)究(jiu)相(xiang)對(dui)(dui)運(yun)動(dong)時(shi),密(mi)(mi)(mi)(mi)封圈(quan)表(biao)(biao)面(mian)(mian)(mian),磨(mo)料磨(mo)具研(yan)(yan)究(jiu)部(bu)分和密(mi)(mi)(mi)(mi)封面(mian)(mian)(mian)之間的(de)(de)(de)(de)(de)滑動(dong)或滾(gun)動(dong),切斷密(mi)(mi)(mi)(mi)封圈(quan)上薄薄的(de)(de)(de)(de)(de)一層金屬表(biao)(biao)面(mian)(mian)(mian)。密(mi)(mi)(mi)(mi)封凸峰(feng)部(bu)分的(de)(de)(de)(de)(de)圈(quan),表(biao)(biao)面(mian)(mian)(mian)研(yan)(yan)磨(mo),然(ran)后逐漸達(da)到所(suo)要求的(de)(de)(de)(de)(de)幾(ji)何(he)形(xing)狀。不(bu)(bu)僅是(shi)金屬磨(mo)料的(de)(de)(de)(de)(de)研(yan)(yan)磨(mo)加工(gong),以(yi)及化學作(zuo)用。研(yan)(yan)磨(mo)油可使加工(gong)表(biao)(biao)面(mian)(mian)(mian)形(xing)成的(de)(de)(de)(de)(de)氧化膜,從而加快(kuai)研(yan)(yan)磨(mo)過程。地面(mian)(mian)(mian)運(yun)動(dong)相(xiang)對(dui)(dui)運(yun)動(dong)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和密(mi)(mi)(mi)(mi)封圈(quan)密(mi)(mi)(mi)(mi)封圈(quan)的(de)(de)(de)(de)(de)研(yan)(yan)究(jiu),對(dui)(dui)每(mei)(mei)個(ge)點的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上的(de)(de)(de)(de)(de)道路(lu)和相(xiang)對(dui)(dui)滑動(dong)的(de)(de)(de)(de)(de)研(yan)(yan)究(jiu)應該是(shi)一樣(yang)的(de)(de)(de)(de)(de)。和相(xiang)對(dui)(dui)運(yun)動(dong)方(fang)(fang)向(xiang)改(gai)變。改(gai)變密(mi)(mi)(mi)(mi)封環內(nei)的(de)(de)(de)(de)(de)每(mei)(mei)個(ge)粒子的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上運(yun)動(dong)的(de)(de)(de)(de)(de)方(fang)(fang)向(xiang)不(bu)(bu)會重復(fu)他們的(de)(de)(de)(de)(de)軌跡,以(yi)避免磨(mo)損明顯增加了(le)密(mi)(mi)(mi)(mi)封環的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)粗(cu)糙度。此外,運(yun)動(dong)方(fang)(fang)向(xiang)的(de)(de)(de)(de)(de)改(gai)變不(bu)(bu)能使磨(mo)粒分布(bu)比較均勻(yun),且均勻(yun)切斷金屬密(mi)(mi)(mi)(mi)封環的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)。

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  房縣機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)是利用(yong)涂敷或者壓(ya)(ya)(ya)嵌游(you)離磨(mo)(mo)(mo)粒(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)劑的混合物,在(zai)一定(ding)(ding)剛性的軟(ruan)質研(yan)(yan)(yan)(yan)具(ju)(ju)上,通(tong)過研(yan)(yan)(yan)(yan)具(ju)(ju)與(yu)(yu)工(gong)件(jian)(jian)向磨(mo)(mo)(mo)料(liao)施加一定(ding)(ding)壓(ya)(ya)(ya)力,磨(mo)(mo)(mo)料(liao)滾動(dong)與(yu)(yu)滑動(dong),從被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)工(gong)件(jian)(jian)上去除極薄(bo)的余量,以提高工(gong)件(jian)(jian)的精度(du)和降低表(biao)(biao)(biao)(biao)面(mian)粗糙度(du)值得加工(gong)方法。按(an)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)時(shi)有(you)無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)液(ye)(ye)可分為干(gan)研(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過程(cheng)中,在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓(ya)(ya)(ya)力下,眾多的磨(mo)(mo)(mo)料(liao)微(wei)(wei)粒(li)(li)進(jin)行(xing)(xing)微(wei)(wei)量切(qie)(qie)削。對工(gong)件(jian)(jian)表(biao)(biao)(biao)(biao)面(mian)進(jin)行(xing)(xing)擠壓(ya)(ya)(ya)、刻(ke)劃、滑擦(ca);在(zai)研(yan)(yan)(yan)(yan)具(ju)(ju)運動(dong)中當研(yan)(yan)(yan)(yan)具(ju)(ju)壓(ya)(ya)(ya)嵌的磨(mo)(mo)(mo)粒(li)(li)脫落(luo)后及(ji)液(ye)(ye)中磨(mo)(mo)(mo)粒(li)(li)相對工(gong)件(jian)(jian)發生滾動(dong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過程(cheng)中,在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓(ya)(ya)(ya)力的作用(yong)下,眾多磨(mo)(mo)(mo)粒(li)(li)進(jin)行(xing)(xing)微(wei)(wei)量切(qie)(qie)削,同時(shi)被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)(biao)面(mian)發生微(wei)(wei)小起(qi)伏(fu)的塑性變形(xing),并且被(bei)(bei)加入的諸如硬脂酸(suan)、油(you)酸(suan)、脂肪酸(suan)等活(huo)性物質與(yu)(yu)被(bei)(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)(biao)面(mian)起(qi)化(hua)學作用(yong)。隨著研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加工(gong)的進(jin)行(xing)(xing),磨(mo)(mo)(mo)具(ju)(ju)與(yu)(yu)工(gong)件(jian)(jian)表(biao)(biao)(biao)(biao)面(mian)間更趨貼近,其間充滿了(le)微(wei)(wei)屑與(yu)(yu)破(po)碎磨(mo)(mo)(mo)料(liao)的碎渣(zha),堵塞(sai)了(le)研(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)(biao)(biao)(biao)面(mian),對工(gong)件(jian)(jian)表(biao)(biao)(biao)(biao)面(mian)起(qi)滑擦(ca)作用(yong)。所以,研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加工(gong)的實(shi)質是磨(mo)(mo)(mo)粒(li)(li)的微(wei)(wei)量切(qie)(qie)削、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)(biao)面(mian)微(wei)(wei)小起(qi)伏(fu)的塑性流(liu)動(dong)、表(biao)(biao)(biao)(biao)面(mian)活(huo)性物質的化(hua)學作用(yong)及(ji)研(yan)(yan)(yan)(yan)具(ju)(ju)堵塞(sai)物與(yu)(yu)工(gong)件(jian)(jian)表(biao)(biao)(biao)(biao)面(mian)滑擦(ca)作用(yong)的綜(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房縣機械密封將熱量傳給(gei)軸(zhou)承(cheng),使軸(zhou)承(cheng)溫度升(sheng)高(gao)。為了(le)控制傳熱,所(suo)以密(mi)封(feng)的(de)水也起到冷卻作用。


  房縣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房縣機械密封低壓側(大氣)將清水(shui)(shui)、蒸汽等冷(leng)(leng)(leng)卻(que)流體(ti)(ti)(ti)直接引入密封(feng)(feng)端泄(xie)露處的一種冷(leng)(leng)(leng)卻(que)方式,也稱急(ji)冷(leng)(leng)(leng),急(ji)冷(leng)(leng)(leng)不僅冷(leng)(leng)(leng)卻(que)*,還能將密封(feng)(feng)端面周圍(wei)的雜質及泄(xie)露液(ye)帶走,急(ji)冷(leng)(leng)(leng)液(ye)其壓力(li)比密封(feng)(feng)介質壓力(li)低。急(ji)冷(leng)(leng)(leng)液(ye)應盡(jin)量采用(yong)軟水(shui)(shui),以防止(zhi)水(shui)(shui)垢產(chan)生破壞密封(feng)(feng)端面。當密封(feng)(feng)流體(ti)(ti)(ti)為(wei)易(yi)(yi)凝(ning)固、易(yi)(yi)結晶(jing)時,可用(yong)蒸汽、溶劑等防止(zhi)流體(ti)(ti)(ti)凝(ning)結。