掃一掃,加微信
聯系客服,馬上詢價
發(fa)布時間:2021-12-17 11:54:31 人氣:98246 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,可以使梅江機械密封摩擦(ca)端面(mian)尺寸精(jing)度(du)提(ti)高(gao),閥門的密封面(mian),幾何粗糙度(du)和表面(mian)粗糙度(du),但不能提(ti)高(gao)密封表面(mian)的相互位(wei)置精(jing)度(du)。
梅江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,隨著對梅江機械密封研(yan)(yan)究(jiu)的(de)(de)(de)(de)復雜面(mian)(mian)(mian)(mian)(mian)(mian),之(zhi)間的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)和密(mi)(mi)封(feng)磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具(ju)研(yan)(yan)究(jiu)相對(dui)運(yun)(yun)(yun)動(dong)(dong)時,密(mi)(mi)封(feng)圈表(biao)面(mian)(mian)(mian)(mian)(mian)(mian),磨(mo)(mo)(mo)料磨(mo)(mo)(mo)具(ju)研(yan)(yan)究(jiu)部(bu)分和密(mi)(mi)封(feng)面(mian)(mian)(mian)(mian)(mian)(mian)之(zhi)間的(de)(de)(de)(de)滑動(dong)(dong)或滾動(dong)(dong),切斷密(mi)(mi)封(feng)圈上(shang)薄薄的(de)(de)(de)(de)一(yi)層金(jin)屬(shu)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)。密(mi)(mi)封(feng)凸峰部(bu)分的(de)(de)(de)(de)圈,表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)研(yan)(yan)磨(mo)(mo)(mo),然后逐漸(jian)達到所要求的(de)(de)(de)(de)幾何形(xing)狀。不(bu)(bu)僅是金(jin)屬(shu)磨(mo)(mo)(mo)料的(de)(de)(de)(de)研(yan)(yan)磨(mo)(mo)(mo)加(jia)工,以及化學作用。研(yan)(yan)磨(mo)(mo)(mo)油(you)可使加(jia)工表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)形(xing)成的(de)(de)(de)(de)氧化膜,從而加(jia)快研(yan)(yan)磨(mo)(mo)(mo)過程。地面(mian)(mian)(mian)(mian)(mian)(mian)運(yun)(yun)(yun)動(dong)(dong)相對(dui)運(yun)(yun)(yun)動(dong)(dong)的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)和密(mi)(mi)封(feng)圈密(mi)(mi)封(feng)圈的(de)(de)(de)(de)研(yan)(yan)究(jiu),對(dui)每(mei)個點的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)的(de)(de)(de)(de)道路和相對(dui)滑動(dong)(dong)的(de)(de)(de)(de)研(yan)(yan)究(jiu)應該是一(yi)樣的(de)(de)(de)(de)。和相對(dui)運(yun)(yun)(yun)動(dong)(dong)方向(xiang)改變。改變密(mi)(mi)封(feng)環內的(de)(de)(de)(de)每(mei)個粒子的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)上(shang)運(yun)(yun)(yun)動(dong)(dong)的(de)(de)(de)(de)方向(xiang)不(bu)(bu)會重(zhong)復他(ta)們的(de)(de)(de)(de)軌跡(ji),以避免磨(mo)(mo)(mo)損明(ming)顯增加(jia)了密(mi)(mi)封(feng)環的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)粗(cu)糙度。此外,運(yun)(yun)(yun)動(dong)(dong)方向(xiang)的(de)(de)(de)(de)改變不(bu)(bu)能使磨(mo)(mo)(mo)粒分布比(bi)較均勻,且均勻切斷金(jin)屬(shu)密(mi)(mi)封(feng)環的(de)(de)(de)(de)表(biao)面(mian)(mian)(mian)(mian)(mian)(mian)。
梅江機械密封研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(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)(mo)(mo)粒(li)(li)(li)與(yu)(yu)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)劑的(de)(de)混合物(wu)(wu),在一(yi)定剛性(xing)的(de)(de)軟(ruan)質研(yan)(yan)(yan)(yan)(yan)具(ju)上,通過(guo)(guo)研(yan)(yan)(yan)(yan)(yan)具(ju)與(yu)(yu)工(gong)(gong)件向磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)(liao)施加一(yi)定壓(ya)力(li),磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)(liao)滾動與(yu)(yu)滑(hua)動,從被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)工(gong)(gong)件上去除極薄(bo)的(de)(de)余量(liang),以提高工(gong)(gong)件的(de)(de)精度和降(jiang)低表(biao)(biao)面(mian)(mian)粗糙度值得加工(gong)(gong)方法。按研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)時(shi)有無(wu)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)液(ye)可分為干研(yan)(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong)(zhong),在研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)下,眾多的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)(liao)微(wei)粒(li)(li)(li)進(jin)(jin)行(xing)微(wei)量(liang)切(qie)削。對工(gong)(gong)件表(biao)(biao)面(mian)(mian)進(jin)(jin)行(xing)擠壓(ya)、刻(ke)劃、滑(hua)擦;在研(yan)(yan)(yan)(yan)(yan)具(ju)運動中(zhong)(zhong)當研(yan)(yan)(yan)(yan)(yan)具(ju)壓(ya)嵌(qian)的(de)(de)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)脫落后及(ji)(ji)液(ye)中(zhong)(zhong)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)相對工(gong)(gong)件發生滾動。研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)過(guo)(guo)程中(zhong)(zhong),在研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)壓(ya)力(li)的(de)(de)作(zuo)用下,眾多磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)進(jin)(jin)行(xing)微(wei)量(liang)切(qie)削,同時(shi)被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)發生微(wei)小起伏的(de)(de)塑性(xing)變形,并(bing)且被(bei)加入的(de)(de)諸(zhu)如硬脂酸、油酸、脂肪酸等(deng)活性(xing)物(wu)(wu)質與(yu)(yu)被(bei)研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)起化學作(zuo)用。隨著研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)進(jin)(jin)行(xing),磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)具(ju)與(yu)(yu)工(gong)(gong)件表(biao)(biao)面(mian)(mian)間(jian)更趨(qu)貼近(jin),其間(jian)充滿了微(wei)屑與(yu)(yu)破碎磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)料(liao)(liao)(liao)的(de)(de)碎渣(zha),堵塞了研(yan)(yan)(yan)(yan)(yan)具(ju)表(biao)(biao)面(mian)(mian),對工(gong)(gong)件表(biao)(biao)面(mian)(mian)起滑(hua)擦作(zuo)用。所以,研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)加工(gong)(gong)的(de)(de)實質是(shi)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)粒(li)(li)(li)的(de)(de)微(wei)量(liang)切(qie)削、研(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)(mo)表(biao)(biao)面(mian)(mian)微(wei)小起伏的(de)(de)塑性(xing)流(liu)動、表(biao)(biao)面(mian)(mian)活性(xing)物(wu)(wu)質的(de)(de)化學作(zuo)用及(ji)(ji)研(yan)(yan)(yan)(yan)(yan)具(ju)堵塞物(wu)(wu)與(yu)(yu)工(gong)(gong)件表(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梅江機械密封將熱量(liang)傳(chuan)給軸承,使(shi)軸承溫(wen)度升高。為了(le)控制傳(chuan)熱,所以密封的水也(ye)起到冷卻作用。
梅江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梅江機械密封低壓(ya)側(大氣(qi))將清水、蒸汽等冷(leng)(leng)卻流(liu)(liu)體(ti)直(zhi)接引入密(mi)封端(duan)泄露處的(de)一種冷(leng)(leng)卻方式,也稱(cheng)急冷(leng)(leng),急冷(leng)(leng)不僅冷(leng)(leng)卻*,還能將密(mi)封端(duan)面周圍的(de)雜質及泄露液帶走,急冷(leng)(leng)液其壓(ya)力(li)比密(mi)封介質壓(ya)力(li)低。急冷(leng)(leng)液應盡量采(cai)用軟水,以防(fang)止水垢(gou)產生破壞密(mi)封端(duan)面。當(dang)密(mi)封流(liu)(liu)體(ti)為易(yi)凝(ning)固(gu)、易(yi)結(jie)晶時,可用蒸汽、溶劑等防(fang)止流(liu)(liu)體(ti)凝(ning)結(jie)。