掃一掃,加微信
聯系客服,馬上詢價
發布(bu)時間:2021-12-17 11:54:31 人氣(qi):98632 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,可以使凌源機械密封摩擦(ca)端面尺寸精度提高,閥門的密封(feng)(feng)面,幾何粗糙(cao)度和表(biao)面粗糙(cao)度,但不(bu)能提高密封(feng)(feng)表(biao)面的相互位置精度。
凌源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,隨著對凌源機械密封研(yan)究(jiu)的(de)(de)(de)(de)(de)復(fu)雜面,之間的(de)(de)(de)(de)(de)表(biao)面和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)(mo)具研(yan)究(jiu)相(xiang)對(dui)(dui)(dui)運動(dong)(dong)(dong)時,密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)表(biao)面,磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)磨(mo)(mo)(mo)(mo)(mo)具研(yan)究(jiu)部分和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)面之間的(de)(de)(de)(de)(de)滑(hua)動(dong)(dong)(dong)或滾(gun)動(dong)(dong)(dong),切斷(duan)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)上薄薄的(de)(de)(de)(de)(de)一(yi)層金屬表(biao)面。密(mi)(mi)(mi)封(feng)(feng)(feng)凸峰部分的(de)(de)(de)(de)(de)圈(quan)(quan),表(biao)面研(yan)磨(mo)(mo)(mo)(mo)(mo),然后(hou)逐漸(jian)達到所要求的(de)(de)(de)(de)(de)幾何形狀。不(bu)(bu)僅是(shi)(shi)金屬磨(mo)(mo)(mo)(mo)(mo)料(liao)(liao)的(de)(de)(de)(de)(de)研(yan)磨(mo)(mo)(mo)(mo)(mo)加工(gong),以(yi)及化(hua)學作用。研(yan)磨(mo)(mo)(mo)(mo)(mo)油可使(shi)加工(gong)表(biao)面形成的(de)(de)(de)(de)(de)氧化(hua)膜,從而(er)加快研(yan)磨(mo)(mo)(mo)(mo)(mo)過(guo)程。地面運動(dong)(dong)(dong)相(xiang)對(dui)(dui)(dui)運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)表(biao)面和(he)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)密(mi)(mi)(mi)封(feng)(feng)(feng)圈(quan)(quan)的(de)(de)(de)(de)(de)研(yan)究(jiu),對(dui)(dui)(dui)每個點的(de)(de)(de)(de)(de)表(biao)面上的(de)(de)(de)(de)(de)道路(lu)和(he)相(xiang)對(dui)(dui)(dui)滑(hua)動(dong)(dong)(dong)的(de)(de)(de)(de)(de)研(yan)究(jiu)應該是(shi)(shi)一(yi)樣的(de)(de)(de)(de)(de)。和(he)相(xiang)對(dui)(dui)(dui)運動(dong)(dong)(dong)方(fang)向改變(bian)。改變(bian)密(mi)(mi)(mi)封(feng)(feng)(feng)環(huan)內的(de)(de)(de)(de)(de)每個粒(li)子(zi)的(de)(de)(de)(de)(de)表(biao)面上運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)方(fang)向不(bu)(bu)會(hui)重復(fu)他們的(de)(de)(de)(de)(de)軌跡,以(yi)避免(mian)磨(mo)(mo)(mo)(mo)(mo)損明(ming)顯(xian)增(zeng)加了密(mi)(mi)(mi)封(feng)(feng)(feng)環(huan)的(de)(de)(de)(de)(de)表(biao)面粗糙度(du)。此(ci)外,運動(dong)(dong)(dong)方(fang)向的(de)(de)(de)(de)(de)改變(bian)不(bu)(bu)能使(shi)磨(mo)(mo)(mo)(mo)(mo)粒(li)分布比較均勻(yun),且均勻(yun)切斷(duan)金屬密(mi)(mi)(mi)封(feng)(feng)(feng)環(huan)的(de)(de)(de)(de)(de)表(biao)面。
凌源機械密封研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)是利用(yong)涂敷或者壓嵌(qian)游離磨(mo)(mo)(mo)粒與研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)劑的(de)(de)混(hun)合物(wu),在一定剛性(xing)(xing)(xing)(xing)的(de)(de)軟質研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)上,通(tong)過(guo)研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)與工(gong)件(jian)向磨(mo)(mo)(mo)料(liao)(liao)施加(jia)(jia)一定壓力,磨(mo)(mo)(mo)料(liao)(liao)滾動與滑動,從被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)工(gong)件(jian)上去除極薄的(de)(de)余(yu)量(liang)(liang),以提高工(gong)件(jian)的(de)(de)精(jing)度(du)和降低表(biao)面(mian)粗(cu)糙(cao)度(du)值得加(jia)(jia)工(gong)方(fang)法。按研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)時有(you)無研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)液可分為干研(yan)(yan)(yan)(yan)(yan)(yan)與濕(shi)研(yan)(yan)(yan)(yan)(yan)(yan)。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過(guo)程(cheng)中(zhong),在研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓力下,眾多的(de)(de)磨(mo)(mo)(mo)料(liao)(liao)微(wei)(wei)(wei)粒進行微(wei)(wei)(wei)量(liang)(liang)切削。對工(gong)件(jian)表(biao)面(mian)進行擠壓、刻劃、滑擦(ca);在研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)運動中(zhong)當研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)壓嵌(qian)的(de)(de)磨(mo)(mo)(mo)粒脫落后及液中(zhong)磨(mo)(mo)(mo)粒相(xiang)對工(gong)件(jian)發生(sheng)滾動。研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)過(guo)程(cheng)中(zhong),在研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)壓力的(de)(de)作(zuo)用(yong)下,眾多磨(mo)(mo)(mo)粒進行微(wei)(wei)(wei)量(liang)(liang)切削,同時被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)面(mian)發生(sheng)微(wei)(wei)(wei)小起(qi)伏的(de)(de)塑性(xing)(xing)(xing)(xing)變形(xing),并且(qie)被加(jia)(jia)入的(de)(de)諸如硬脂酸(suan)、油酸(suan)、脂肪酸(suan)等活性(xing)(xing)(xing)(xing)物(wu)質與被研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)面(mian)起(qi)化學作(zuo)用(yong)。隨(sui)著研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加(jia)(jia)工(gong)的(de)(de)進行,磨(mo)(mo)(mo)具(ju)(ju)與工(gong)件(jian)表(biao)面(mian)間更趨貼近,其間充(chong)滿了微(wei)(wei)(wei)屑與破碎(sui)磨(mo)(mo)(mo)料(liao)(liao)的(de)(de)碎(sui)渣(zha),堵塞(sai)了研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)表(biao)面(mian),對工(gong)件(jian)表(biao)面(mian)起(qi)滑擦(ca)作(zuo)用(yong)。所以,研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)加(jia)(jia)工(gong)的(de)(de)實質是磨(mo)(mo)(mo)粒的(de)(de)微(wei)(wei)(wei)量(liang)(liang)切削、研(yan)(yan)(yan)(yan)(yan)(yan)磨(mo)(mo)(mo)表(biao)面(mian)微(wei)(wei)(wei)小起(qi)伏的(de)(de)塑性(xing)(xing)(xing)(xing)流動、表(biao)面(mian)活性(xing)(xing)(xing)(xing)物(wu)質的(de)(de)化學作(zuo)用(yong)及研(yan)(yan)(yan)(yan)(yan)(yan)具(ju)(ju)堵塞(sai)物(wu)與工(gong)件(jian)表(biao)面(mian)滑擦(ca)作(zuo)用(yong)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凌源機械密封將熱量(liang)傳給軸承,使軸承溫度(du)升高。為了控(kong)制傳熱,所以密封(feng)的水也(ye)起到冷卻作用。
凌源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凌源機械密封低(di)壓(ya)側(大氣)將清(qing)水(shui)、蒸(zheng)汽等(deng)冷(leng)卻(que)流體(ti)直接引入密(mi)封(feng)(feng)(feng)端泄(xie)露(lu)處的一種(zhong)冷(leng)卻(que)方式,也稱(cheng)急冷(leng),急冷(leng)不僅冷(leng)卻(que)*,還能將密(mi)封(feng)(feng)(feng)端面周圍的雜(za)質(zhi)及泄(xie)露(lu)液帶(dai)走,急冷(leng)液其壓(ya)力(li)比密(mi)封(feng)(feng)(feng)介質(zhi)壓(ya)力(li)低(di)。急冷(leng)液應盡量采用(yong)軟水(shui),以防止(zhi)水(shui)垢產生破壞密(mi)封(feng)(feng)(feng)端面。當密(mi)封(feng)(feng)(feng)流體(ti)為易(yi)(yi)凝固、易(yi)(yi)結晶時,可用(yong)蒸(zheng)汽、溶劑等(deng)防止(zhi)流體(ti)凝結。