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當陽研磨和冷卻對密封面都非常重要

發布(bu)時間:2021-12-17 11:54:31 人(ren)氣:98153 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,可以使當陽機械密封摩擦(ca)端面(mian)尺寸(cun)精度(du)提高,閥門的密(mi)封(feng)面(mian),幾何粗糙(cao)度(du)和(he)表面(mian)粗糙(cao)度(du),但不能提高密(mi)封(feng)表面(mian)的相互位(wei)置精度(du)。


  當陽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,隨著對當陽機械密封研(yan)(yan)究的(de)(de)(de)(de)(de)(de)復雜(za)面(mian),之(zhi)間的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具研(yan)(yan)究相(xiang)對(dui)運(yun)動(dong)(dong)時,密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)表(biao)(biao)面(mian),磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具研(yan)(yan)究部分和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)面(mian)之(zhi)間的(de)(de)(de)(de)(de)(de)滑(hua)動(dong)(dong)或滾動(dong)(dong),切(qie)斷密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)上薄薄的(de)(de)(de)(de)(de)(de)一層金(jin)屬表(biao)(biao)面(mian)。密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)凸峰部分的(de)(de)(de)(de)(de)(de)圈(quan)(quan)(quan),表(biao)(biao)面(mian)研(yan)(yan)磨(mo)(mo)(mo),然(ran)后(hou)逐(zhu)漸達到所要求的(de)(de)(de)(de)(de)(de)幾(ji)何形狀。不(bu)(bu)僅是(shi)(shi)金(jin)屬磨(mo)(mo)(mo)料的(de)(de)(de)(de)(de)(de)研(yan)(yan)磨(mo)(mo)(mo)加(jia)工,以(yi)及(ji)化學作用(yong)。研(yan)(yan)磨(mo)(mo)(mo)油可使加(jia)工表(biao)(biao)面(mian)形成(cheng)的(de)(de)(de)(de)(de)(de)氧化膜,從而加(jia)快(kuai)研(yan)(yan)磨(mo)(mo)(mo)過程(cheng)。地面(mian)運(yun)動(dong)(dong)相(xiang)對(dui)運(yun)動(dong)(dong)的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)圈(quan)(quan)(quan)的(de)(de)(de)(de)(de)(de)研(yan)(yan)究,對(dui)每個(ge)點的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)上的(de)(de)(de)(de)(de)(de)道路和(he)相(xiang)對(dui)滑(hua)動(dong)(dong)的(de)(de)(de)(de)(de)(de)研(yan)(yan)究應(ying)該是(shi)(shi)一樣的(de)(de)(de)(de)(de)(de)。和(he)相(xiang)對(dui)運(yun)動(dong)(dong)方(fang)向改(gai)(gai)變。改(gai)(gai)變密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)環內的(de)(de)(de)(de)(de)(de)每個(ge)粒(li)子的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)上運(yun)動(dong)(dong)的(de)(de)(de)(de)(de)(de)方(fang)向不(bu)(bu)會(hui)重復他們的(de)(de)(de)(de)(de)(de)軌跡(ji),以(yi)避免(mian)磨(mo)(mo)(mo)損明顯增加(jia)了密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)環的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)粗糙度。此外,運(yun)動(dong)(dong)方(fang)向的(de)(de)(de)(de)(de)(de)改(gai)(gai)變不(bu)(bu)能使磨(mo)(mo)(mo)粒(li)分布比較(jiao)均(jun)勻,且均(jun)勻切(qie)斷金(jin)屬密(mi)(mi)(mi)封(feng)(feng)(feng)(feng)(feng)(feng)環的(de)(de)(de)(de)(de)(de)表(biao)(biao)面(mian)。

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  當陽機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)是(shi)利(li)用涂敷(fu)或者壓(ya)(ya)(ya)嵌游離(li)磨(mo)(mo)(mo)粒(li)(li)與(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)劑的(de)(de)混合物(wu)(wu),在一(yi)定剛(gang)性的(de)(de)軟質研(yan)(yan)(yan)(yan)具上,通過研(yan)(yan)(yan)(yan)具與(yu)工(gong)(gong)件(jian)(jian)向磨(mo)(mo)(mo)料施加一(yi)定壓(ya)(ya)(ya)力,磨(mo)(mo)(mo)料滾(gun)動與(yu)滑(hua)動,從被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)工(gong)(gong)件(jian)(jian)上去除極薄的(de)(de)余量(liang)(liang),以(yi)(yi)提(ti)高工(gong)(gong)件(jian)(jian)的(de)(de)精(jing)度(du)和降低表(biao)(biao)(biao)面(mian)(mian)粗糙度(du)值得加工(gong)(gong)方法。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)時有無(wu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)液可分為干研(yan)(yan)(yan)(yan)與(yu)濕(shi)研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過程中,在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓(ya)(ya)(ya)力下,眾(zhong)(zhong)多的(de)(de)磨(mo)(mo)(mo)料微粒(li)(li)進(jin)行微量(liang)(liang)切(qie)削(xue)。對(dui)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)進(jin)行擠壓(ya)(ya)(ya)、刻劃、滑(hua)擦;在研(yan)(yan)(yan)(yan)具運動中當研(yan)(yan)(yan)(yan)具壓(ya)(ya)(ya)嵌的(de)(de)磨(mo)(mo)(mo)粒(li)(li)脫(tuo)落后(hou)及液中磨(mo)(mo)(mo)粒(li)(li)相對(dui)工(gong)(gong)件(jian)(jian)發生滾(gun)動。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過程中,在研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓(ya)(ya)(ya)力的(de)(de)作(zuo)用下,眾(zhong)(zhong)多磨(mo)(mo)(mo)粒(li)(li)進(jin)行微量(liang)(liang)切(qie)削(xue),同時被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)發生微小起伏的(de)(de)塑(su)性變(bian)形,并且(qie)被(bei)加入的(de)(de)諸如硬脂酸、油酸、脂肪酸等活性物(wu)(wu)質與(yu)被(bei)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)起化(hua)學作(zuo)用。隨著研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加工(gong)(gong)的(de)(de)進(jin)行,磨(mo)(mo)(mo)具與(yu)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)間更趨貼近,其間充滿了微屑與(yu)破(po)碎磨(mo)(mo)(mo)料的(de)(de)碎渣,堵塞了研(yan)(yan)(yan)(yan)具表(biao)(biao)(biao)面(mian)(mian),對(dui)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)起滑(hua)擦作(zuo)用。所(suo)以(yi)(yi),研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加工(gong)(gong)的(de)(de)實(shi)質是(shi)磨(mo)(mo)(mo)粒(li)(li)的(de)(de)微量(liang)(liang)切(qie)削(xue)、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)(mian)微小起伏的(de)(de)塑(su)性流動、表(biao)(biao)(biao)面(mian)(mian)活性物(wu)(wu)質的(de)(de)化(hua)學作(zuo)用及研(yan)(yan)(yan)(yan)具堵塞物(wu)(wu)與(yu)工(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)(mian)滑(hua)擦作(zuo)用的(de)(de)綜合結果。


  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當陽機械密封將熱量傳(chuan)給軸承,使軸承溫度升高。為了控(kong)制傳(chuan)熱,所以(yi)密封的水(shui)也起(qi)到冷卻作(zuo)用。


  當陽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當陽機械密封低(di)(di)壓(ya)(ya)側(大(da)氣)將清水(shui)、蒸(zheng)汽等(deng)冷卻流(liu)(liu)體直接(jie)引入密(mi)(mi)封(feng)(feng)端泄露處的(de)一種(zhong)冷卻方式,也稱急(ji)冷,急(ji)冷不(bu)僅(jin)冷卻*,還能將密(mi)(mi)封(feng)(feng)端面周(zhou)圍的(de)雜質及泄露液(ye)帶走,急(ji)冷液(ye)其壓(ya)(ya)力比密(mi)(mi)封(feng)(feng)介質壓(ya)(ya)力低(di)(di)。急(ji)冷液(ye)應盡(jin)量采(cai)用(yong)軟水(shui),以防止水(shui)垢產(chan)生破壞密(mi)(mi)封(feng)(feng)端面。當密(mi)(mi)封(feng)(feng)流(liu)(liu)體為易凝固、易結晶時(shi),可用(yong)蒸(zheng)汽、溶劑等(deng)防止流(liu)(liu)體凝結。