簡要描述:四氟(fu)墊(dian)(dian)四氟(fu)墊(dian)(dian)片(pian)(pian)片(pian)(pian)國外又叫PTFE墊(dian)(dian)片(pian)(pian)或(huo)(huo)Teflon(鐵氟(fu)龍)墊(dian)(dian)片(pian)(pian).由聚四氟(fu)乙烯(xi)棒、 管、板經機械(xie)車削或(huo)(huo)裁切而成(cheng)的平墊(dian)(dian)片(pian)(pian)、V形墊(dian)(dian)片(pian)(pian)、活塞環、球閥墊(dian)(dian)圈等(deng)具有耐腐蝕、抗老化和不(bu)導(dao)電等(deng)良好特(te)性(xing)。
更新(xin)時間:2021-07-19
產(chan)品品牌:華英
生產地址:河北大城縣
四氟(fu)墊片國外又叫(jiao)PTFE墊(dian)(dian)片(pian)或Teflon(鐵氟(fu)龍)墊(dian)(dian)片(pian).由聚四氟(fu)乙烯棒、 管、板經機(ji)械車削或裁切而成的平墊(dian)(dian)片(pian)、V形墊(dian)(dian)片(pian)、活塞環、球閥(fa)墊(dian)(dian)圈(quan)等具有耐腐(fu)蝕、抗老(lao)化(hua)和不(bu)導電等良(liang)好特(te)性。
1)原(yuan)材料準備(bei);配料:純(chun)F4制(zhi)品,原(yuan)料F4細(xi)樹脂,搗碎,過篩
2)模具(ju)準備:用酒精擦干凈,壓模內無鐵銹,無附著物
3)稱量,根據公(gong)式G=PV(其中G為加料量,P為預(yu)制品(pin)密度(2.18g/cm3)
V為制品體積(ji))稱出重量。
4)加料:將(jiang)F4樹脂(zhi)均勻分(fen)布在整個(ge)壓制面(mian)上。
5)預(yu)成(cheng)型(壓(ya)制(zhi)):根(gen)據公式(shi)計算出(chu)壓(ya)力機(ji)表(biao)壓(ya),設定壓(ya)力機(ji)表(biao)壓(ya)。進行壓(ya)制(zhi)
6)脫模(mo)修邊:將半成品從模(mo)具中取出,將其表面修邊,使其表面平整(zheng),邊緣整(zheng)齊(qi)。準備成型。
7)燒結:將半(ban)成(cheng)品(pin)(pin)慢慢放(fang)入燒結爐中,放(fang)入合適數量,升(sheng)溫一(yi)小時(shi)(shi)大約(yue)到390度,再進行保溫一(yi)小時(shi)(shi),大約(yue)成(cheng)型后(hou)開始(shi)降溫,約(yue)四小時(shi)(shi)后(hou),到達室內溫度,進行成(cheng)品(pin)(pin)出爐,zui后(hou)完(wan)成(cheng)定(ding)型。
純四(si)氟墊(dian)片選用(yong)(yong)材料:四(si)(si)氟(fu)粉料、四(si)(si)氟(fu)板(ban)(ban) 使用(yong)(yong)溫度(du):-150-250℃ 使用(yong)(yong)壓(ya)(ya)力:6.4Mpa【主要用(yong)(yong)途(tu)】高清潔度(du)介質的靜密(mi)封【可供(gong)規格】DN10-1600mm聚四(si)(si)氟(fu)乙(yi)烯夾(jia)包墊(dian)(dian)片是由石棉橡膠板(ban)(ban)或(huo)無石棉板(ban)(ban)等(deng)軟(ruan)墊(dian)(dian)片和聚四(si)(si)氟(fu)乙(yi)烯包覆薄片組(zu)合而(er)成,V型(剖切型)四(si)(si)氟(fu)夾(jia)包墊(dian)(dian)片由四(si)(si)氟(fu)板(ban)(ban)機(ji)械車削(xue)而(er)成,U型(折(zhe)包型)四(si)(si)氟(fu)夾(jia)包墊(dian)(dian)片由四(si)(si)氟(fu)帶包邊后加熱粘接而(er)成。兼具(ju)優異的耐腐蝕(shi)性和良(liang)好的壓(ya)(ya)縮回彈率(lv),廣泛應(ying)用(yong)(yong)于(yu)各種強(qiang)酸(suan)、強(qiang)堿、強(qiang)氧(yang)化和不(bu)允污染介質的密(mi)封。通常適用(yong)(yong)于(yu)中(zhong)、低壓(ya)(ya)部位。主要技術參數:壓(ya)(ya)力:≤4.0MPa溫度(du):≤260℃墊(dian)(dian)片系(xi)數:m=2.5PH值(zhi):0-14zui小預緊比壓(ya)(ya):y=20MPa
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