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鄲城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(ren)氣(qi):98048 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,可以使鄲城機械密封摩擦端面(mian)尺寸精度(du)提(ti)高,閥(fa)門的密(mi)封(feng)面(mian),幾何(he)粗糙度(du)和表面(mian)粗糙度(du),但不能提(ti)高密(mi)封(feng)表面(mian)的相互位置精度(du)。


  鄲城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,隨著對鄲城機械密封研(yan)(yan)(yan)(yan)究(jiu)的(de)(de)復雜面(mian)(mian)(mian),之(zhi)間(jian)的(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)磨(mo)(mo)(mo)料(liao)磨(mo)(mo)(mo)具研(yan)(yan)(yan)(yan)究(jiu)相(xiang)(xiang)對(dui)運(yun)動(dong)(dong)時,密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈表(biao)(biao)面(mian)(mian)(mian),磨(mo)(mo)(mo)料(liao)磨(mo)(mo)(mo)具研(yan)(yan)(yan)(yan)究(jiu)部(bu)分(fen)和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)面(mian)(mian)(mian)之(zhi)間(jian)的(de)(de)滑(hua)動(dong)(dong)或滾動(dong)(dong),切斷密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈上薄薄的(de)(de)一(yi)層(ceng)金屬(shu)表(biao)(biao)面(mian)(mian)(mian)。密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)凸峰部(bu)分(fen)的(de)(de)圈,表(biao)(biao)面(mian)(mian)(mian)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo),然后逐漸達到所要求的(de)(de)幾何形狀。不(bu)(bu)僅是金屬(shu)磨(mo)(mo)(mo)料(liao)的(de)(de)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加(jia)工(gong),以及化學(xue)作用。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)油(you)可使加(jia)工(gong)表(biao)(biao)面(mian)(mian)(mian)形成的(de)(de)氧(yang)化膜,從而加(jia)快研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過程(cheng)。地面(mian)(mian)(mian)運(yun)動(dong)(dong)相(xiang)(xiang)對(dui)運(yun)動(dong)(dong)的(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)圈的(de)(de)研(yan)(yan)(yan)(yan)究(jiu),對(dui)每個(ge)點的(de)(de)表(biao)(biao)面(mian)(mian)(mian)上的(de)(de)道路(lu)和(he)(he)相(xiang)(xiang)對(dui)滑(hua)動(dong)(dong)的(de)(de)研(yan)(yan)(yan)(yan)究(jiu)應該是一(yi)樣的(de)(de)。和(he)(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)(feng)(feng)環(huan)(huan)內的(de)(de)每個(ge)粒子(zi)的(de)(de)表(biao)(biao)面(mian)(mian)(mian)上運(yun)動(dong)(dong)的(de)(de)方(fang)向不(bu)(bu)會重復他們的(de)(de)軌(gui)跡,以避免磨(mo)(mo)(mo)損明顯增加(jia)了密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)環(huan)(huan)的(de)(de)表(biao)(biao)面(mian)(mian)(mian)粗糙度。此(ci)外,運(yun)動(dong)(dong)方(fang)向的(de)(de)改變不(bu)(bu)能使磨(mo)(mo)(mo)粒分(fen)布比(bi)較均(jun)勻(yun),且均(jun)勻(yun)切斷金屬(shu)密(mi)(mi)(mi)(mi)封(feng)(feng)(feng)環(huan)(huan)的(de)(de)表(biao)(biao)面(mian)(mian)(mian)。

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  鄲城機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)是利(li)用涂敷或者(zhe)壓(ya)(ya)嵌(qian)游(you)離磨(mo)(mo)(mo)(mo)(mo)粒(li)與(yu)(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)混合(he)物(wu),在一(yi)定(ding)剛(gang)性的(de)(de)(de)軟質研(yan)(yan)(yan)(yan)具(ju)上,通(tong)過研(yan)(yan)(yan)(yan)具(ju)與(yu)(yu)工(gong)件向磨(mo)(mo)(mo)(mo)(mo)料施(shi)加(jia)(jia)一(yi)定(ding)壓(ya)(ya)力(li),磨(mo)(mo)(mo)(mo)(mo)料滾動(dong)與(yu)(yu)滑動(dong),從被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)工(gong)件上去(qu)除極薄的(de)(de)(de)余量,以(yi)提高工(gong)件的(de)(de)(de)精度(du)和降低(di)表(biao)(biao)(biao)面(mian)(mian)(mian)粗糙(cao)度(du)值得加(jia)(jia)工(gong)方法(fa)。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)時(shi)有無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)液(ye)可分(fen)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)(mo)(mo)過程(cheng)中(zhong),在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)下,眾多的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)料微(wei)(wei)粒(li)進(jin)行(xing)微(wei)(wei)量切削(xue)(xue)。對(dui)工(gong)件表(biao)(biao)(biao)面(mian)(mian)(mian)進(jin)行(xing)擠(ji)壓(ya)(ya)、刻劃、滑擦(ca);在研(yan)(yan)(yan)(yan)具(ju)運(yun)動(dong)中(zhong)當研(yan)(yan)(yan)(yan)具(ju)壓(ya)(ya)嵌(qian)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)粒(li)脫落后及液(ye)中(zhong)磨(mo)(mo)(mo)(mo)(mo)粒(li)相(xiang)對(dui)工(gong)件發生(sheng)滾動(dong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)過程(cheng)中(zhong),在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)的(de)(de)(de)作用下,眾多磨(mo)(mo)(mo)(mo)(mo)粒(li)進(jin)行(xing)微(wei)(wei)量切削(xue)(xue),同(tong)時(shi)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)發生(sheng)微(wei)(wei)小起伏的(de)(de)(de)塑(su)性變形,并且被(bei)加(jia)(jia)入的(de)(de)(de)諸如硬脂(zhi)酸、油酸、脂(zhi)肪酸等(deng)活性物(wu)質與(yu)(yu)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)起化(hua)學(xue)作用。隨著研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)的(de)(de)(de)進(jin)行(xing),磨(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)(yu)工(gong)件表(biao)(biao)(biao)面(mian)(mian)(mian)間(jian)更趨貼近,其間(jian)充滿(man)了(le)微(wei)(wei)屑與(yu)(yu)破碎磨(mo)(mo)(mo)(mo)(mo)料的(de)(de)(de)碎渣(zha),堵(du)塞(sai)了(le)研(yan)(yan)(yan)(yan)具(ju)表(biao)(biao)(biao)面(mian)(mian)(mian),對(dui)工(gong)件表(biao)(biao)(biao)面(mian)(mian)(mian)起滑擦(ca)作用。所以(yi),研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)加(jia)(jia)工(gong)的(de)(de)(de)實質是磨(mo)(mo)(mo)(mo)(mo)粒(li)的(de)(de)(de)微(wei)(wei)量切削(xue)(xue)、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)微(wei)(wei)小起伏的(de)(de)(de)塑(su)性流動(dong)、表(biao)(biao)(biao)面(mian)(mian)(mian)活性物(wu)質的(de)(de)(de)化(hua)學(xue)作用及研(yan)(yan)(yan)(yan)具(ju)堵(du)塞(sai)物(wu)與(yu)(yu)工(gong)件表(biao)(biao)(biao)面(mian)(mian)(mian)滑擦(ca)作用的(de)(de)(de)綜(zong)合(he)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鄲城機械密封將熱量傳給軸承,使(shi)軸承溫度升高。為了控(kong)制(zhi)傳熱,所以密封(feng)的水也起到冷卻作用(yong)。


  鄲城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鄲城機械密封低壓側(大氣(qi))將(jiang)清(qing)水(shui)、蒸汽等冷(leng)(leng)(leng)卻(que)流(liu)體(ti)直(zhi)接引入密(mi)封(feng)端泄露處的一種冷(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(huan)能將(jiang)密(mi)封(feng)端面(mian)周圍的雜(za)質及泄露液(ye)帶走(zou),急(ji)冷(leng)(leng)(leng)液(ye)其壓力(li)比密(mi)封(feng)介質壓力(li)低。急(ji)冷(leng)(leng)(leng)液(ye)應(ying)盡量采用軟水(shui),以防止水(shui)垢產生破壞(huai)密(mi)封(feng)端面(mian)。當密(mi)封(feng)流(liu)體(ti)為易凝固、易結晶時,可(ke)用蒸汽、溶劑(ji)等防止流(liu)體(ti)凝結。