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琿春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:98105 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,可以使琿春機械密封摩擦端面尺寸精(jing)度提(ti)高(gao),閥門的(de)(de)密封(feng)面,幾何粗(cu)糙(cao)度和(he)表(biao)(biao)面粗(cu)糙(cao)度,但不(bu)能提(ti)高(gao)密封(feng)表(biao)(biao)面的(de)(de)相互位(wei)置精(jing)度。


  琿春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,隨著對琿春機械密封研(yan)究的(de)(de)(de)復雜面(mian)(mian),之間的(de)(de)(de)表(biao)面(mian)(mian)和密(mi)(mi)封(feng)(feng)磨(mo)(mo)(mo)(mo)料磨(mo)(mo)(mo)(mo)具研(yan)究相對運動(dong)(dong)(dong)(dong)(dong)時,密(mi)(mi)封(feng)(feng)圈表(biao)面(mian)(mian),磨(mo)(mo)(mo)(mo)料磨(mo)(mo)(mo)(mo)具研(yan)究部(bu)分和密(mi)(mi)封(feng)(feng)面(mian)(mian)之間的(de)(de)(de)滑動(dong)(dong)(dong)(dong)(dong)或滾動(dong)(dong)(dong)(dong)(dong),切斷(duan)密(mi)(mi)封(feng)(feng)圈上(shang)薄薄的(de)(de)(de)一層(ceng)金屬表(biao)面(mian)(mian)。密(mi)(mi)封(feng)(feng)凸峰部(bu)分的(de)(de)(de)圈,表(biao)面(mian)(mian)研(yan)磨(mo)(mo)(mo)(mo),然后逐漸(jian)達到(dao)所要求(qiu)的(de)(de)(de)幾何形狀。不僅是金屬磨(mo)(mo)(mo)(mo)料的(de)(de)(de)研(yan)磨(mo)(mo)(mo)(mo)加(jia)工,以及(ji)化學作(zuo)用。研(yan)磨(mo)(mo)(mo)(mo)油(you)可使加(jia)工表(biao)面(mian)(mian)形成的(de)(de)(de)氧化膜(mo),從(cong)而加(jia)快研(yan)磨(mo)(mo)(mo)(mo)過程。地面(mian)(mian)運動(dong)(dong)(dong)(dong)(dong)相對運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)表(biao)面(mian)(mian)和密(mi)(mi)封(feng)(feng)圈密(mi)(mi)封(feng)(feng)圈的(de)(de)(de)研(yan)究,對每個點的(de)(de)(de)表(biao)面(mian)(mian)上(shang)的(de)(de)(de)道路(lu)和相對滑動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)研(yan)究應該(gai)是一樣的(de)(de)(de)。和相對運動(dong)(dong)(dong)(dong)(dong)方向(xiang)改變(bian)(bian)。改變(bian)(bian)密(mi)(mi)封(feng)(feng)環內(nei)的(de)(de)(de)每個粒子的(de)(de)(de)表(biao)面(mian)(mian)上(shang)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)方向(xiang)不會重復他們的(de)(de)(de)軌跡,以避免磨(mo)(mo)(mo)(mo)損明顯增加(jia)了密(mi)(mi)封(feng)(feng)環的(de)(de)(de)表(biao)面(mian)(mian)粗(cu)糙度。此外,運動(dong)(dong)(dong)(dong)(dong)方向(xiang)的(de)(de)(de)改變(bian)(bian)不能使磨(mo)(mo)(mo)(mo)粒分布比較均(jun)勻(yun),且均(jun)勻(yun)切斷(duan)金屬密(mi)(mi)封(feng)(feng)環的(de)(de)(de)表(biao)面(mian)(mian)。

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  琿春機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)是(shi)利用涂敷或者壓(ya)嵌(qian)游離磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒與(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)劑的(de)(de)(de)混合物,在一(yi)(yi)定(ding)剛(gang)性(xing)的(de)(de)(de)軟質(zhi)研(yan)(yan)(yan)(yan)具(ju)上,通過(guo)研(yan)(yan)(yan)(yan)具(ju)與(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)向磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)施加一(yi)(yi)定(ding)壓(ya)力(li),磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)滾(gun)動(dong)與(yu)滑(hua)(hua)動(dong),從被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)件(jian)(jian)(jian)(jian)上去(qu)除極薄的(de)(de)(de)余量(liang)(liang),以提高工(gong)(gong)件(jian)(jian)(jian)(jian)的(de)(de)(de)精度和(he)降低表(biao)面(mian)(mian)(mian)粗(cu)糙度值得加工(gong)(gong)方(fang)法。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)時有無(wu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)液可(ke)分為(wei)干(gan)研(yan)(yan)(yan)(yan)與(yu)濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程(cheng)中(zhong)(zhong),在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)下,眾多(duo)(duo)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)微(wei)(wei)粒進行微(wei)(wei)量(liang)(liang)切(qie)削。對工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)進行擠壓(ya)、刻(ke)劃(hua)、滑(hua)(hua)擦;在研(yan)(yan)(yan)(yan)具(ju)運動(dong)中(zhong)(zhong)當研(yan)(yan)(yan)(yan)具(ju)壓(ya)嵌(qian)的(de)(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒脫落后及(ji)液中(zhong)(zhong)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒相(xiang)對工(gong)(gong)件(jian)(jian)(jian)(jian)發生滾(gun)動(dong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)程(cheng)中(zhong)(zhong),在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)的(de)(de)(de)作(zuo)(zuo)用下,眾多(duo)(duo)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒進行微(wei)(wei)量(liang)(liang)切(qie)削,同時被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)發生微(wei)(wei)小(xiao)起(qi)伏(fu)的(de)(de)(de)塑性(xing)變形,并且被加入的(de)(de)(de)諸如硬脂(zhi)酸(suan)、油酸(suan)、脂(zhi)肪酸(suan)等活性(xing)物質(zhi)與(yu)被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)起(qi)化學作(zuo)(zuo)用。隨(sui)著研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)進行,磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)間更趨(qu)貼(tie)近,其間充滿了微(wei)(wei)屑與(yu)破(po)碎磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)的(de)(de)(de)碎渣(zha),堵塞(sai)了研(yan)(yan)(yan)(yan)具(ju)表(biao)面(mian)(mian)(mian),對工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)起(qi)滑(hua)(hua)擦作(zuo)(zuo)用。所以,研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)(de)實質(zhi)是(shi)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒的(de)(de)(de)微(wei)(wei)量(liang)(liang)切(qie)削、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)面(mian)(mian)(mian)微(wei)(wei)小(xiao)起(qi)伏(fu)的(de)(de)(de)塑性(xing)流動(dong)、表(biao)面(mian)(mian)(mian)活性(xing)物質(zhi)的(de)(de)(de)化學作(zuo)(zuo)用及(ji)研(yan)(yan)(yan)(yan)具(ju)堵塞(sai)物與(yu)工(gong)(gong)件(jian)(jian)(jian)(jian)表(biao)面(mian)(mian)(mian)滑(hua)(hua)擦作(zuo)(zuo)用的(de)(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琿春機械密封將(jiang)熱(re)(re)量(liang)傳給(gei)軸承(cheng),使(shi)軸承(cheng)溫度升(sheng)高。為了控制傳熱(re)(re),所以密封(feng)的水也起(qi)到(dao)冷卻作用。


  琿春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琿春機械密封低壓(ya)側(大氣)將清水、蒸汽等冷(leng)卻流體直接(jie)引(yin)入密封端(duan)泄露處的一種冷(leng)卻方式,也(ye)稱(cheng)急冷(leng),急冷(leng)不僅冷(leng)卻*,還(huan)能將密封端(duan)面周圍的雜質及泄露液帶(dai)走(zou),急冷(leng)液其(qi)壓(ya)力比密封介質壓(ya)力低。急冷(leng)液應盡(jin)量采用(yong)軟水,以防(fang)止水垢產生(sheng)破(po)壞密封端(duan)面。當密封流體為易(yi)凝固、易(yi)結晶(jing)時,可用(yong)蒸汽、溶劑等防(fang)止流體凝結。