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合川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:97963 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,可以使合川機械密封摩(mo)擦端(duan)面(mian)尺寸精度提高(gao),閥門的密封面(mian),幾何粗(cu)(cu)糙度和表(biao)面(mian)粗(cu)(cu)糙度,但不能提高(gao)密封表(biao)面(mian)的相互位(wei)置精度。


  合川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,隨著對合川機械密封研究的(de)(de)(de)(de)(de)復(fu)雜面(mian)(mian),之間的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)磨(mo)料(liao)磨(mo)具(ju)研究相(xiang)對(dui)運(yun)動(dong)(dong)(dong)時,密(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)表(biao)(biao)面(mian)(mian),磨(mo)料(liao)磨(mo)具(ju)研究部(bu)分和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)面(mian)(mian)之間的(de)(de)(de)(de)(de)滑(hua)動(dong)(dong)(dong)或滾動(dong)(dong)(dong),切斷密(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)上(shang)薄(bo)薄(bo)的(de)(de)(de)(de)(de)一層金(jin)屬表(biao)(biao)面(mian)(mian)。密(mi)(mi)(mi)(mi)封(feng)(feng)凸峰部(bu)分的(de)(de)(de)(de)(de)圈(quan),表(biao)(biao)面(mian)(mian)研磨(mo),然后逐漸達(da)到所要求的(de)(de)(de)(de)(de)幾何形(xing)狀。不(bu)僅是金(jin)屬磨(mo)料(liao)的(de)(de)(de)(de)(de)研磨(mo)加(jia)工,以及化(hua)學作用。研磨(mo)油可使加(jia)工表(biao)(biao)面(mian)(mian)形(xing)成的(de)(de)(de)(de)(de)氧化(hua)膜,從而加(jia)快(kuai)研磨(mo)過程。地面(mian)(mian)運(yun)動(dong)(dong)(dong)相(xiang)對(dui)運(yun)動(dong)(dong)(dong)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)和(he)(he)密(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)密(mi)(mi)(mi)(mi)封(feng)(feng)圈(quan)的(de)(de)(de)(de)(de)研究,對(dui)每個點(dian)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)上(shang)的(de)(de)(de)(de)(de)道路和(he)(he)相(xiang)對(dui)滑(hua)動(dong)(dong)(dong)的(de)(de)(de)(de)(de)研究應該是一樣的(de)(de)(de)(de)(de)。和(he)(he)相(xiang)對(dui)運(yun)動(dong)(dong)(dong)方向改變。改變密(mi)(mi)(mi)(mi)封(feng)(feng)環(huan)(huan)內的(de)(de)(de)(de)(de)每個粒子的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)上(shang)運(yun)動(dong)(dong)(dong)的(de)(de)(de)(de)(de)方向不(bu)會重(zhong)復(fu)他們的(de)(de)(de)(de)(de)軌(gui)跡(ji),以避免磨(mo)損明顯增加(jia)了密(mi)(mi)(mi)(mi)封(feng)(feng)環(huan)(huan)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)粗(cu)糙度。此(ci)外(wai),運(yun)動(dong)(dong)(dong)方向的(de)(de)(de)(de)(de)改變不(bu)能(neng)使磨(mo)粒分布比(bi)較均勻(yun),且均勻(yun)切斷金(jin)屬密(mi)(mi)(mi)(mi)封(feng)(feng)環(huan)(huan)的(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)。

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  合川機械密封研(yan)(yan)磨(mo)(mo)(mo)(mo)是利用涂(tu)敷或者壓(ya)(ya)嵌游(you)離磨(mo)(mo)(mo)(mo)粒(li)與(yu)研(yan)(yan)磨(mo)(mo)(mo)(mo)劑(ji)的(de)(de)(de)混合物(wu),在(zai)一定(ding)剛性(xing)(xing)(xing)的(de)(de)(de)軟質(zhi)研(yan)(yan)具(ju)(ju)(ju)上,通過(guo)研(yan)(yan)具(ju)(ju)(ju)與(yu)工(gong)(gong)件(jian)向(xiang)磨(mo)(mo)(mo)(mo)料(liao)(liao)(liao)施(shi)加一定(ding)壓(ya)(ya)力(li),磨(mo)(mo)(mo)(mo)料(liao)(liao)(liao)滾動(dong)(dong)與(yu)滑(hua)(hua)動(dong)(dong),從(cong)被研(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)(gong)件(jian)上去除極(ji)薄的(de)(de)(de)余量(liang)(liang),以提高工(gong)(gong)件(jian)的(de)(de)(de)精度(du)和降低表(biao)面(mian)(mian)粗糙度(du)值(zhi)得加工(gong)(gong)方法。按研(yan)(yan)磨(mo)(mo)(mo)(mo)時有無(wu)研(yan)(yan)磨(mo)(mo)(mo)(mo)液(ye)可(ke)分為干研(yan)(yan)與(yu)濕研(yan)(yan)。研(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程中,在(zai)研(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)下,眾多的(de)(de)(de)磨(mo)(mo)(mo)(mo)料(liao)(liao)(liao)微(wei)(wei)粒(li)進(jin)(jin)(jin)行(xing)(xing)微(wei)(wei)量(liang)(liang)切(qie)削。對工(gong)(gong)件(jian)表(biao)面(mian)(mian)進(jin)(jin)(jin)行(xing)(xing)擠壓(ya)(ya)、刻劃、滑(hua)(hua)擦;在(zai)研(yan)(yan)具(ju)(ju)(ju)運動(dong)(dong)中當研(yan)(yan)具(ju)(ju)(ju)壓(ya)(ya)嵌的(de)(de)(de)磨(mo)(mo)(mo)(mo)粒(li)脫落后及液(ye)中磨(mo)(mo)(mo)(mo)粒(li)相對工(gong)(gong)件(jian)發(fa)生(sheng)滾動(dong)(dong)。研(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程中,在(zai)研(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)(ya)力(li)的(de)(de)(de)作(zuo)用下,眾多磨(mo)(mo)(mo)(mo)粒(li)進(jin)(jin)(jin)行(xing)(xing)微(wei)(wei)量(liang)(liang)切(qie)削,同時被研(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)發(fa)生(sheng)微(wei)(wei)小起(qi)伏的(de)(de)(de)塑性(xing)(xing)(xing)變形,并且(qie)被加入的(de)(de)(de)諸如硬脂(zhi)酸、油酸、脂(zhi)肪酸等活(huo)性(xing)(xing)(xing)物(wu)質(zhi)與(yu)被研(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)起(qi)化學作(zuo)用。隨著研(yan)(yan)磨(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)進(jin)(jin)(jin)行(xing)(xing),磨(mo)(mo)(mo)(mo)具(ju)(ju)(ju)與(yu)工(gong)(gong)件(jian)表(biao)面(mian)(mian)間更趨貼近,其間充(chong)滿了微(wei)(wei)屑與(yu)破碎(sui)磨(mo)(mo)(mo)(mo)料(liao)(liao)(liao)的(de)(de)(de)碎(sui)渣,堵塞了研(yan)(yan)具(ju)(ju)(ju)表(biao)面(mian)(mian),對工(gong)(gong)件(jian)表(biao)面(mian)(mian)起(qi)滑(hua)(hua)擦作(zuo)用。所以,研(yan)(yan)磨(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)實質(zhi)是磨(mo)(mo)(mo)(mo)粒(li)的(de)(de)(de)微(wei)(wei)量(liang)(liang)切(qie)削、研(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)微(wei)(wei)小起(qi)伏的(de)(de)(de)塑性(xing)(xing)(xing)流動(dong)(dong)、表(biao)面(mian)(mian)活(huo)性(xing)(xing)(xing)物(wu)質(zhi)的(de)(de)(de)化學作(zuo)用及研(yan)(yan)具(ju)(ju)(ju)堵塞物(wu)與(yu)工(gong)(gong)件(jian)表(biao)面(mian)(mian)滑(hua)(hua)擦作(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合川機械密封將熱量傳給(gei)軸(zhou)承(cheng),使軸(zhou)承(cheng)溫度升高。為了(le)控制傳熱,所以(yi)密(mi)封(feng)的(de)水也(ye)起到冷卻作用。


  合川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合川機械密封低(di)壓(ya)側(ce)(大(da)氣)將(jiang)清水、蒸(zheng)汽等冷(leng)卻流體(ti)(ti)直接引入密封端泄露處的一種冷(leng)卻方(fang)式,也稱(cheng)急(ji)(ji)(ji)冷(leng),急(ji)(ji)(ji)冷(leng)不(bu)僅(jin)冷(leng)卻*,還能將(jiang)密封端面周(zhou)圍的雜質及(ji)泄露液(ye)帶走,急(ji)(ji)(ji)冷(leng)液(ye)其(qi)壓(ya)力比密封介質壓(ya)力低(di)。急(ji)(ji)(ji)冷(leng)液(ye)應(ying)盡量采用(yong)軟水,以防止水垢產生破壞(huai)密封端面。當密封流體(ti)(ti)為(wei)易凝固、易結晶時,可(ke)用(yong)蒸(zheng)汽、溶劑(ji)等防止流體(ti)(ti)凝結。