掃一掃,加微信
聯系客服,馬上詢價
發布時(shi)間:2021-12-17 11:54:31 人氣:98017 來源(yuan):
在研磨過程中,閥門制造的密封面是一個常用的整理方法,可以使陵水機械密封摩擦端面(mian)尺寸精(jing)度(du)提高,閥門的(de)密(mi)封面(mian),幾何(he)粗(cu)糙度(du)和表面(mian)粗(cu)糙度(du),但不能提高密(mi)封表面(mian)的(de)相互位置精(jing)度(du)。
陵水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,隨著對陵水機械密封研(yan)(yan)究(jiu)(jiu)的(de)(de)復雜面(mian)(mian),之間(jian)的(de)(de)表(biao)面(mian)(mian)和(he)密(mi)封(feng)(feng)(feng)磨(mo)(mo)(mo)(mo)料(liao)磨(mo)(mo)(mo)(mo)具研(yan)(yan)究(jiu)(jiu)相(xiang)對(dui)運動(dong)(dong)(dong)時,密(mi)封(feng)(feng)(feng)圈表(biao)面(mian)(mian),磨(mo)(mo)(mo)(mo)料(liao)磨(mo)(mo)(mo)(mo)具研(yan)(yan)究(jiu)(jiu)部分和(he)密(mi)封(feng)(feng)(feng)面(mian)(mian)之間(jian)的(de)(de)滑動(dong)(dong)(dong)或滾動(dong)(dong)(dong),切斷密(mi)封(feng)(feng)(feng)圈上薄薄的(de)(de)一層金(jin)屬表(biao)面(mian)(mian)。密(mi)封(feng)(feng)(feng)凸峰(feng)部分的(de)(de)圈,表(biao)面(mian)(mian)研(yan)(yan)磨(mo)(mo)(mo)(mo),然后(hou)逐漸達到所(suo)要(yao)求的(de)(de)幾何(he)形狀。不僅是金(jin)屬磨(mo)(mo)(mo)(mo)料(liao)的(de)(de)研(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)(jia)(jia)工,以(yi)及化學作(zuo)用。研(yan)(yan)磨(mo)(mo)(mo)(mo)油(you)可(ke)使加(jia)(jia)(jia)工表(biao)面(mian)(mian)形成的(de)(de)氧(yang)化膜,從而加(jia)(jia)(jia)快(kuai)研(yan)(yan)磨(mo)(mo)(mo)(mo)過程。地面(mian)(mian)運動(dong)(dong)(dong)相(xiang)對(dui)運動(dong)(dong)(dong)的(de)(de)表(biao)面(mian)(mian)和(he)密(mi)封(feng)(feng)(feng)圈密(mi)封(feng)(feng)(feng)圈的(de)(de)研(yan)(yan)究(jiu)(jiu),對(dui)每(mei)(mei)個(ge)點(dian)的(de)(de)表(biao)面(mian)(mian)上的(de)(de)道路和(he)相(xiang)對(dui)滑動(dong)(dong)(dong)的(de)(de)研(yan)(yan)究(jiu)(jiu)應該(gai)是一樣的(de)(de)。和(he)相(xiang)對(dui)運動(dong)(dong)(dong)方(fang)向改(gai)變。改(gai)變密(mi)封(feng)(feng)(feng)環內的(de)(de)每(mei)(mei)個(ge)粒子的(de)(de)表(biao)面(mian)(mian)上運動(dong)(dong)(dong)的(de)(de)方(fang)向不會重復他們的(de)(de)軌跡,以(yi)避(bi)免磨(mo)(mo)(mo)(mo)損(sun)明顯增加(jia)(jia)(jia)了(le)密(mi)封(feng)(feng)(feng)環的(de)(de)表(biao)面(mian)(mian)粗糙度(du)。此外,運動(dong)(dong)(dong)方(fang)向的(de)(de)改(gai)變不能使磨(mo)(mo)(mo)(mo)粒分布比較(jiao)均(jun)(jun)勻,且均(jun)(jun)勻切斷金(jin)屬密(mi)封(feng)(feng)(feng)環的(de)(de)表(biao)面(mian)(mian)。
陵水機械密封研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)是利用(yong)(yong)涂敷(fu)或者壓嵌(qian)游(you)離磨(mo)(mo)(mo)(mo)粒(li)與(yu)(yu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)劑的(de)(de)(de)(de)(de)(de)(de)混合物(wu)(wu),在(zai)一定(ding)剛性的(de)(de)(de)(de)(de)(de)(de)軟質研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)上(shang),通過(guo)研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)與(yu)(yu)工(gong)(gong)(gong)件(jian)(jian)向磨(mo)(mo)(mo)(mo)料施(shi)加(jia)一定(ding)壓力(li),磨(mo)(mo)(mo)(mo)料滾(gun)動(dong)與(yu)(yu)滑動(dong),從被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)工(gong)(gong)(gong)件(jian)(jian)上(shang)去(qu)除極薄的(de)(de)(de)(de)(de)(de)(de)余(yu)量(liang),以提高工(gong)(gong)(gong)件(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)精度和降低表(biao)(biao)(biao)面(mian)粗糙度值得加(jia)工(gong)(gong)(gong)方法(fa)。按研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)時(shi)有無研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)液可分(fen)為干研(yan)(yan)(yan)(yan)與(yu)(yu)濕研(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程中(zhong),在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓力(li)下(xia),眾多的(de)(de)(de)(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)料微(wei)粒(li)進(jin)(jin)行微(wei)量(liang)切(qie)(qie)削。對(dui)工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)進(jin)(jin)行擠壓、刻(ke)劃、滑擦;在(zai)研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)運動(dong)中(zhong)當(dang)研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)壓嵌(qian)的(de)(de)(de)(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)粒(li)脫落(luo)后及液中(zhong)磨(mo)(mo)(mo)(mo)粒(li)相對(dui)工(gong)(gong)(gong)件(jian)(jian)發生(sheng)滾(gun)動(dong)。研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)過(guo)程中(zhong),在(zai)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)壓力(li)的(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)下(xia),眾多磨(mo)(mo)(mo)(mo)粒(li)進(jin)(jin)行微(wei)量(liang)切(qie)(qie)削,同時(shi)被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)發生(sheng)微(wei)小(xiao)起(qi)伏(fu)的(de)(de)(de)(de)(de)(de)(de)塑性變(bian)形(xing),并且(qie)被加(jia)入的(de)(de)(de)(de)(de)(de)(de)諸如硬脂酸、油酸、脂肪酸等活性物(wu)(wu)質與(yu)(yu)被研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)起(qi)化學作(zuo)(zuo)用(yong)(yong)。隨著(zhu)研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)進(jin)(jin)行,磨(mo)(mo)(mo)(mo)具(ju)(ju)(ju)與(yu)(yu)工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)間更趨貼(tie)近,其間充滿了微(wei)屑(xie)與(yu)(yu)破碎(sui)磨(mo)(mo)(mo)(mo)料的(de)(de)(de)(de)(de)(de)(de)碎(sui)渣,堵塞了研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)表(biao)(biao)(biao)面(mian),對(dui)工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)起(qi)滑擦作(zuo)(zuo)用(yong)(yong)。所(suo)以,研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)加(jia)工(gong)(gong)(gong)的(de)(de)(de)(de)(de)(de)(de)實質是磨(mo)(mo)(mo)(mo)粒(li)的(de)(de)(de)(de)(de)(de)(de)微(wei)量(liang)切(qie)(qie)削、研(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)(mo)表(biao)(biao)(biao)面(mian)微(wei)小(xiao)起(qi)伏(fu)的(de)(de)(de)(de)(de)(de)(de)塑性流動(dong)、表(biao)(biao)(biao)面(mian)活性物(wu)(wu)質的(de)(de)(de)(de)(de)(de)(de)化學作(zuo)(zuo)用(yong)(yong)及研(yan)(yan)(yan)(yan)具(ju)(ju)(ju)堵塞物(wu)(wu)與(yu)(yu)工(gong)(gong)(gong)件(jian)(jian)表(biao)(biao)(biao)面(mian)滑擦作(zuo)(zuo)用(yong)(yong)的(de)(de)(de)(de)(de)(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陵水機械密封將熱量傳(chuan)給軸(zhou)承,使軸(zhou)承溫(wen)度升(sheng)高。為了控制(zhi)傳(chuan)熱,所以密封的水也起到(dao)冷卻(que)作用。
陵水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陵水機械密封低壓側(大氣)將清水、蒸汽等冷(leng)卻流體(ti)直接(jie)引(yin)入密封(feng)端泄(xie)露(lu)處的(de)一種冷(leng)卻方式,也稱急(ji)(ji)冷(leng),急(ji)(ji)冷(leng)不(bu)僅(jin)冷(leng)卻*,還(huan)能將密封(feng)端面周圍的(de)雜(za)質(zhi)及(ji)泄(xie)露(lu)液(ye)帶走,急(ji)(ji)冷(leng)液(ye)其壓力(li)比(bi)密封(feng)介質(zhi)壓力(li)低。急(ji)(ji)冷(leng)液(ye)應(ying)盡量采用(yong)軟水,以防(fang)止(zhi)水垢(gou)產生破壞密封(feng)端面。當密封(feng)流體(ti)為(wei)易凝固(gu)、易結(jie)晶時(shi),可用(yong)蒸汽、溶劑等防(fang)止(zhi)流體(ti)凝結(jie)。