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石墨墊片:耐腐蝕,耐高溫 ;金(jin)屬(shu)(shu)石墨(mo)(mo)(mo)纏繞(rao)墊(dian)(dian)(dian)(dian)片(pian)(pian):耐高壓(ya),耐腐蝕,高壓(ya)石墨(mo)(mo)(mo)墊(dian)(dian)(dian)(dian)片(pian)(pian)生(sheng)產(chan)廠家(jia),耐高溫。金(jin)屬(shu)(shu)石墨(mo)(mo)(mo)纏繞(rao)墊(dian)(dian)(dian)(dian)片(pian)(pian)價(jia)格(ge)較(jiao)高。金(jin)屬(shu)(shu)石墨(mo)(mo)(mo)纏繞(rao)墊(dian)(dian)(dian)(dian)為半金(jin)屬(shu)(shu)密(mi)(mi)合墊(dian)(dian)(dian)(dian)中回彈(dan)性(xing)佳的(de)(de)墊(dian)(dian)(dian)(dian)片(pian)(pian),由V形(xing)或W形(xing)薄鋼(gang)帶與各種填充料(liao)(石墨(mo)(mo)(mo)、石棉、四氟(fu))交(jiao)替纏繞(rao)而(er)成,其結構密(mi)(mi)度可(ke)依(yi)據(ju)不(bu)同(tong)的(de)(de)鎖緊(jin)力要求(qiu)(qiu)來制作,并利用內外鋼(gang)環(huan)來控制其壓(ya)緊(jin)度,填料(liao)環(huan)石墨(mo)(mo)(mo)墊(dian)(dian)(dian)(dian)片(pian)(pian),墊(dian)(dian)(dian)(dian)片(pian)(pian)接觸的(de)(de)法(fa)蘭密(mi)(mi)封面的(de)(de)表面精度要求(qiu)(qiu)不(bu)高。石墨(mo)(mo)(mo)墊(dian)(dian)(dian)(dian)片(pian)(pian)它具有(you)(you)良好的(de)(de)防(fang)腐蝕性(xing), 耐高/低溫,耐輻射,良好的(de)(de)壓(ya)縮(suo)回彈(dan)性(xing)和高強(qiang)度性(xing),所需的(de)(de)預緊(jin)力比(bi)金(jin)屬(shu)(shu)墊(dian)(dian)(dian)(dian)片(pian)(pian)和金(jin)屬(shu)(shu)纏繞(rao)墊(dian)(dian)(dian)(dian)片(pian)(pian)要小,石墨(mo)(mo)(mo)墊(dian)(dian)(dian)(dian)片(pian)(pian),對法(fa)蘭面的(de)(de)要求(qiu)(qiu)不(bu)高,是一種比(bi)較(jiao)經(jing)濟實用的(de)(de)墊(dian)(dian)(dian)(dian)片(pian)(pian)。如(ru)果采用包邊(bian)形(xing)式可(ke)保持(chi)原有(you)(you)石墨(mo)(mo)(mo)復(fu)合墊(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)各項(xiang)優異性(xing)能,又便(bian)于安裝、拆(chai)卸,不(bu)易損壞,同(tong)時也可(ke)防(fang)止(zhi)介質和外界(jie)空氣中氧(yang)氣對墊(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)侵蝕,提高了耐溫和耐壓(ya)性(xing)能。
石(shi)(shi)(shi)(shi)墨(mo)墊片以石(shi)(shi)(shi)(shi)墨(mo)線為材料,經編織而成(cheng)(cheng)。石(shi)(shi)(shi)(shi)墨(mo)墊片適用于高(gao)(gao)溫、高(gao)(gao)壓、強腐蝕(shi)性(xing)介質下工作的各(ge)(ge)類閥門、泵、反(fan)應釜(fu)等設備的填料函密封。柔性(xing)石(shi)(shi)(shi)(shi)墨(mo)具有優(you)良耐溫性(xing)(-260℃~+1500℃),耐腐蝕(shi)性(xing),應力松弛率(lv)小,其做成(cheng)(cheng)的密封件具有很好的密封性(xing)能。石(shi)(shi)(shi)(shi)墨(mo)復(fu)合(he)墊是(shi)已經沖刺的金屬(shu)薄(bo)板為骨(gu)架(jia),在其表(biao)面(mian)(mian)復(fu)合(he)柔性(xing)石(shi)(shi)(shi)(shi)墨(mo)構成(cheng)(cheng)。石(shi)(shi)(shi)(shi)墨(mo)墊片用于各(ge)(ge)種工業上的管道法蘭,換熱器,閥蓋(gai)等,以及液(ye)面(mian)(mian)計、水準儀上的特殊形狀法蘭。
石墨墊片分類
柔(rou)性(xing)石墨(mo)墊(dian)片(pian)由柔(rou)性(xing)石墨(mo)薄片(pian)(或帶有金屬(shu)加強)切(qie)割而成,根據應(ying)用需(xu)要(yao)共分為四種類型:
1、柔(rou)性石墨墊(dian)片:從柔(rou)性石墨薄片上切割而成,用于管道法蘭和閥蓋等(deng)。建議(yi)這種墊(dian)片都為小直徑墊(dian)片,這取(qu)決于它(ta)的低機械強(qiang)度。
2、柔性石(shi)墨墊片MI:帶鉤的(de)碳(tan)鋼薄片(0.2毫米厚)被(bei)柔性石(shi)墨薄片夾在(zai)中間,然后被(bei)切割(ge)成(cheng)特定的(de)尺寸,機械強度很(hen)高。
3、柔性石墨墊片PM:柔性石墨薄(bo)片被(bei)粘附在(zai)0.2毫米厚的(de)304不銹鋼薄(bo)片的(de)兩面,具有很高的(de)機械強度并(bing)且(qie)易(yi)于(yu)運輸,由(you)于(yu)它也可以被(bei)切割成復雜的(de)形狀,這種墊片被(bei)廣泛的(de)應用在(zai)各種工(gong)業(ye)中。
4、 柔性石(shi)墨墊(dian)片(pian)PM-A:將T/#1215 中的(de)不(bu)銹(xiu)鋼(gang)薄片(pian)換成 316鋼(gang)(50 微米(mi))。
包邊(bian)石(shi)(shi)墨墊(dian)片(pian)(pian)是(shi)對純(chun)切割石(shi)(shi)墨墊(dian)片(pian)(pian)的(de)改(gai)進,內外圈包覆金(jin)屬(shu)薄片(pian)(pian),即保持原有(you)墊(dian)片(pian)(pian)的(de)各項優異性能,又(you)便于安裝、拆卸,不銹鋼石(shi)(shi)墨墊(dian)片(pian)(pian)價格,不易損壞,同時也可(ke)以防(fang)止介質對墊(dian)片(pian)(pian)的(de)侵蝕,提(ti)高(gao)了耐壓。常用(yong)包邊(bian)材料(liao)為304或316不銹鋼。可(ke)使用(yong)壓力(li)6.4~10Mpa。
石(shi)墨墊(dian)片性(xing)能特點:它具(ju)有良好(hao)的(de)(de)防腐蝕(shi)(shi)性(xing), 耐(nai)(nai)高/低溫,耐(nai)(nai)輻射,良好(hao)的(de)(de)壓縮回彈性(xing)和高強度性(xing),所(suo)需的(de)(de)預緊(jin)力比金屬墊(dian)片和金屬纏繞墊(dian)片要小,對法蘭面的(de)(de)要求不高,是一(yi)種比較經濟實用(yong)的(de)(de)墊(dian)片。如果采用(yong)包邊形式可(ke)保持原有石(shi)墨復合(he)墊(dian)片的(de)(de)各(ge)項優(you)異性(xing)能,又(you)便于安裝(zhuang)、拆卸,不易損壞,同(tong)時也(ye)可(ke)防止介質和外界空氣中氧氣對墊(dian)片的(de)(de)侵(qin)蝕(shi)(shi),提高了(le)耐(nai)(nai)溫和耐(nai)(nai)壓性(xing)能。
石(shi)(shi)墨(mo)墊片(pian)(pian)使用設備: 管(guan)道、閥門、泵(beng)、壓力(li)容器、熱交換器、冷(leng)凝器、發電(dian)機(ji)、空氣壓縮機(ji)、排氣管(guan)、制冷(leng)機(ji)等法(fa)蘭連接處的密封(feng)部(bu)位可替代石(shi)(shi)棉橡膠墊片(pian)(pian)、鐵包墊片(pian)(pian)。 石(shi)(shi)墨(mo)復合墊片(pian)(pian)最da加工尺寸無(wu)限(xian)制, 特殊(shu)規(gui)格(ge)或各(ge)類非標準產品可按客戶要求制定。