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發布(bu)時(shi)間:2021-12-17 11:54:31 人氣:98093 來(lai)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,可以使社旗縣機械密封摩擦端面尺寸精(jing)度提高,閥門的密封(feng)面,幾何粗糙(cao)度和表面粗糙(cao)度,但不能提高密封(feng)表面的相互(hu)位置精(jing)度。
社旗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,隨著對社旗縣機械密封研(yan)(yan)究(jiu)的(de)(de)(de)(de)(de)(de)復雜(za)面(mian)(mian)(mian),之間的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)密(mi)(mi)(mi)封(feng)(feng)磨(mo)料(liao)磨(mo)具研(yan)(yan)究(jiu)相對運(yun)動(dong)(dong)時,密(mi)(mi)(mi)封(feng)(feng)圈(quan)表(biao)(biao)面(mian)(mian)(mian),磨(mo)料(liao)磨(mo)具研(yan)(yan)究(jiu)部分和(he)密(mi)(mi)(mi)封(feng)(feng)面(mian)(mian)(mian)之間的(de)(de)(de)(de)(de)(de)滑動(dong)(dong)或滾動(dong)(dong),切斷密(mi)(mi)(mi)封(feng)(feng)圈(quan)上薄薄的(de)(de)(de)(de)(de)(de)一(yi)層(ceng)金(jin)屬(shu)表(biao)(biao)面(mian)(mian)(mian)。密(mi)(mi)(mi)封(feng)(feng)凸峰部分的(de)(de)(de)(de)(de)(de)圈(quan),表(biao)(biao)面(mian)(mian)(mian)研(yan)(yan)磨(mo),然后逐漸達到(dao)所要求的(de)(de)(de)(de)(de)(de)幾何形(xing)狀。不(bu)僅(jin)是(shi)金(jin)屬(shu)磨(mo)料(liao)的(de)(de)(de)(de)(de)(de)研(yan)(yan)磨(mo)加工(gong),以(yi)(yi)及化學作用。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)(de)氧化膜,從(cong)而加快(kuai)研(yan)(yan)磨(mo)過程。地面(mian)(mian)(mian)運(yun)動(dong)(dong)相對運(yun)動(dong)(dong)的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)和(he)密(mi)(mi)(mi)封(feng)(feng)圈(quan)密(mi)(mi)(mi)封(feng)(feng)圈(quan)的(de)(de)(de)(de)(de)(de)研(yan)(yan)究(jiu),對每個點(dian)的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上的(de)(de)(de)(de)(de)(de)道路和(he)相對滑動(dong)(dong)的(de)(de)(de)(de)(de)(de)研(yan)(yan)究(jiu)應該是(shi)一(yi)樣的(de)(de)(de)(de)(de)(de)。和(he)相對運(yun)動(dong)(dong)方(fang)向(xiang)改變(bian)。改變(bian)密(mi)(mi)(mi)封(feng)(feng)環內的(de)(de)(de)(de)(de)(de)每個粒子的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)上運(yun)動(dong)(dong)的(de)(de)(de)(de)(de)(de)方(fang)向(xiang)不(bu)會重復他們(men)的(de)(de)(de)(de)(de)(de)軌(gui)跡,以(yi)(yi)避免磨(mo)損明顯增加了密(mi)(mi)(mi)封(feng)(feng)環的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)粗糙度。此外,運(yun)動(dong)(dong)方(fang)向(xiang)的(de)(de)(de)(de)(de)(de)改變(bian)不(bu)能使磨(mo)粒分布比較(jiao)均勻,且(qie)均勻切斷金(jin)屬(shu)密(mi)(mi)(mi)封(feng)(feng)環的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)(mian)(mian)。
社旗縣機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)是利用涂敷(fu)或者壓(ya)嵌游離(li)磨(mo)(mo)(mo)(mo)粒(li)與研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)劑(ji)的(de)(de)(de)混合物,在(zai)(zai)一定剛性(xing)的(de)(de)(de)軟質(zhi)研(yan)(yan)(yan)(yan)具上,通過研(yan)(yan)(yan)(yan)具與工(gong)(gong)件(jian)(jian)向磨(mo)(mo)(mo)(mo)料(liao)施加(jia)一定壓(ya)力,磨(mo)(mo)(mo)(mo)料(liao)滾動(dong)與滑動(dong),從(cong)被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)(gong)件(jian)(jian)上去除極薄(bo)的(de)(de)(de)余量,以(yi)提高(gao)工(gong)(gong)件(jian)(jian)的(de)(de)(de)精度和降低表(biao)(biao)(biao)面(mian)(mian)(mian)粗糙度值得加(jia)工(gong)(gong)方(fang)法。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)時有無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)液(ye)可分為(wei)干研(yan)(yan)(yan)(yan)與濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過程(cheng)中,在(zai)(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力下(xia),眾(zhong)多的(de)(de)(de)磨(mo)(mo)(mo)(mo)料(liao)微(wei)粒(li)進(jin)(jin)行微(wei)量切(qie)削。對(dui)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)進(jin)(jin)行擠壓(ya)、刻劃(hua)、滑擦;在(zai)(zai)研(yan)(yan)(yan)(yan)具運動(dong)中當研(yan)(yan)(yan)(yan)具壓(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(dui)工(gong)(gong)件(jian)(jian)發生(sheng)滾動(dong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過程(cheng)中,在(zai)(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓(ya)力的(de)(de)(de)作(zuo)用下(xia),眾(zhong)多磨(mo)(mo)(mo)(mo)粒(li)進(jin)(jin)行微(wei)量切(qie)削,同時被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)發生(sheng)微(wei)小(xiao)起伏(fu)的(de)(de)(de)塑性(xing)變形(xing),并(bing)且被加(jia)入的(de)(de)(de)諸如硬脂酸(suan)、油酸(suan)、脂肪(fang)酸(suan)等活性(xing)物質(zhi)與被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)起化學作(zuo)用。隨著(zhu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)的(de)(de)(de)進(jin)(jin)行,磨(mo)(mo)(mo)(mo)具與工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)間(jian)更趨貼近,其間(jian)充滿了微(wei)屑與破碎(sui)磨(mo)(mo)(mo)(mo)料(liao)的(de)(de)(de)碎(sui)渣(zha),堵(du)塞了研(yan)(yan)(yan)(yan)具表(biao)(biao)(biao)面(mian)(mian)(mian),對(dui)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)起滑擦作(zuo)用。所(suo)以(yi),研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)的(de)(de)(de)實質(zhi)是磨(mo)(mo)(mo)(mo)粒(li)的(de)(de)(de)微(wei)量切(qie)削、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)(mian)微(wei)小(xiao)起伏(fu)的(de)(de)(de)塑性(xing)流動(dong)、表(biao)(biao)(biao)面(mian)(mian)(mian)活性(xing)物質(zhi)的(de)(de)(de)化學作(zuo)用及研(yan)(yan)(yan)(yan)具堵(du)塞物與工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)(mian)滑擦作(zuo)用的(de)(de)(de)綜(zong)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社旗縣機械密封將熱量傳給(gei)軸(zhou)承,使軸(zhou)承溫度升高。為(wei)了控制傳熱,所以密封的水也起到冷卻作(zuo)用。
社旗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社旗縣機械密封低壓側(大氣)將清(qing)水(shui)、蒸(zheng)汽等(deng)冷(leng)卻流體(ti)(ti)直接引入密(mi)封(feng)端泄露(lu)處(chu)的(de)一(yi)種冷(leng)卻方式,也(ye)稱急(ji)(ji)冷(leng),急(ji)(ji)冷(leng)不僅冷(leng)卻*,還能將密(mi)封(feng)端面(mian)周圍的(de)雜質及泄露(lu)液帶走,急(ji)(ji)冷(leng)液其壓力比密(mi)封(feng)介質壓力低。急(ji)(ji)冷(leng)液應(ying)盡量采用軟水(shui),以防(fang)止水(shui)垢(gou)產生破(po)壞密(mi)封(feng)端面(mian)。當密(mi)封(feng)流體(ti)(ti)為易(yi)凝固、易(yi)結晶時,可用蒸(zheng)汽、溶(rong)劑等(deng)防(fang)止流體(ti)(ti)凝結。