磁力泵
在(zai)(zai)工(gong)(gong)業生(sheng)(sheng)產中，化(hua)(hua)(hua)工(gong)(gong)磁力泵(beng)(beng)作為無(wu)泄(xie)漏，環(huan)保理念(nian)，深受(shou)用(yong)戶廣(guang)泛使用(yong)，隨著需(xu)求(qiu)的不同，高溫(wen)情(qing)(qing)況(kuang)下(xia)也是常(chang)有(you)(you)的，對于使用(yong)設備，必須具(ju)有(you)(you)耐高溫(wen)性(xing)，那么(me)在(zai)(zai)高溫(wen)情(qing)(qing)況(kuang)下(xia)化(hua)(hua)(hua)工(gong)(gong)磁力泵(beng)(beng)密封材(cai)(cai)質有(you)(you)哪些選型材(cai)(cai)料呢(ni)?為了合(he)(he)成(cheng)新材(cai)(cai)料和提(ti)升生(sheng)(sheng)產效率，化(hua)(hua)(hua)工(gong)(gong)處理中的工(gong)(gong)藝溫(wen)度在(zai)(zai)持續升高，高溫(wen)工(gong)(gong)況(kuang)增多。在(zai)(zai)高溫(wen)范(fan)圍內，適合(he)(he)的非金屬(shu)墊(dian)片材(cai)(cai)料選擇性(xing)很(hen)小。

1、目前(qian)都有哪些(xie)密(mi)封材料(liao)(liao)可耐(nai)受工業(ye)高溫呢? 石墨在這(zhe)個(ge)溫度下無法使(shi)用(yong)(yong)或者無法長(chang)期使(shi)用(yong)(yong);云母(mu)和陶瓷類產品泄(xie)漏率太大(da);近年來(lai)蛭石基(吸(xi)水(shui)性硅酸(suan)鋁基材質(zhi))高溫密(mi)封材料(liao)(liao)有所(suo)應用(yong)(yong)，但這(zhe)種材料(liao)(liao)不足是具有吸(xi)水(shui)性，不利于耐(nai)高溫化(hua)工磁(ci)力泵使(shi)用(yong)(yong)。革命性疏(shu)水(shui)性硅酸(suan)鎂基材質(zhi)的(de)超高溫密(mi)封材料(liao)(liao)應勢誕生，專(zhuan)有設(she)計，使(shi)用(yong)(yong)環保的(de)無溶(rong)劑(ji)工藝生產，配方(fang)*，適(shi)用(yong)(yong)于腐蝕性化(hua)學品場合(he)。

2、常(chang)用高(gao)(gao)溫(wen)(wen)墊片性(xing)(xing)能對比(bi)(bi)，以下就(jiu)常(chang)用高(gao)(gao)溫(wen)(wen)密封(feng)(feng)材料在熱失(shi)重(zhong)性(xing)(xing)，疏水性(xing)(xing)以及(ji)密封(feng)(feng)性(xing)(xing)幾個方面進行對比(bi)(bi)試(shi)驗。 密封(feng)(feng)材料暴露于(yu)高(gao)(gao)溫(wen)(wen)時，有機纖維(wei)和(he)橡膠(jiao)(jiao)膠(jiao)(jiao)黏劑(ji)很容易被(bei)碳化(hua)或(huo)揮(hui)發(fa)，可以通過測試(shi)高(gao)(gao)溫(wen)(wen)下密封(feng)(feng)材料的(de)重(zhong)量(liang)損失(shi)來判斷其影(ying)響大(da)小。不同高(gao)(gao)溫(wen)(wen)材料的(de)熱失(shi)重(zhong)分(fen)析結果(guo)。密封(feng)(feng)材料的(de)重(zhong)量(liang)損失(shi)相應表明(ming)有體積損失(shi)，體積損失(shi)對保持密封(feng)(feng)性(xing)(xing)是非常(chang)致命的(de)。

對于墊(dian)(dian)(dian)片(pian)材(cai)料(liao)(liao)(liao)來說(shuo)，抗氧(yang)(yang)化(hua)(hua)(hua)(hua)性(xing)(xing)能(neng)對于保持螺栓的(de)(de)(de)(de)(de)(de)(de)預(yu)緊力非(fei)常重要，一(yi)旦墊(dian)(dian)(dian)片(pian)氧(yang)(yang)化(hua)(hua)(hua)(hua)失重，就(jiu)會(hui)(hui)造(zao)成(cheng)螺栓松弛，從(cong)而(er)導致(zhi)(zhi)密(mi)封(feng)泄漏。對于長(chang)期的(de)(de)(de)(de)(de)(de)(de)氧(yang)(yang)化(hua)(hua)(hua)(hua)環(huan)境也不(bu)(bu)是問題。 從(cong)制造(zao)的(de)(de)(de)(de)(de)(de)(de)角度來說(shuo)，使用親水(shui)(shui)(shui)性(xing)(xing)材(cai)料(liao)(liao)(liao)如云母(mu)、氟化(hua)(hua)(hua)(hua)云母(mu)、蛭石(shi)、氮化(hua)(hua)(hua)(hua)硼等(deng)(deng)原材(cai)料(liao)(liao)(liao)時，其(qi)親水(shui)(shui)(shui)特性(xing)(xing)能(neng)在(zai)(zai)混合(he)階(jie)段能(neng)很(hen)好(hao)幫助(zhu)加(jia)工(gong)，也有很(hen)好(hao)的(de)(de)(de)(de)(de)(de)(de)耐溫性(xing)(xing)。然而(er)，它們(men)在(zai)(zai)潮(chao)濕(shi)環(huan)境下(xia)(xia)(xia)會(hui)(hui)受水(shui)(shui)(shui)沾(zhan)蝕性(xing)(xing)，易導致(zhi)(zhi)墊(dian)(dian)(dian)片(pian)材(cai)料(liao)(liao)(liao)的(de)(de)(de)(de)(de)(de)(de)密(mi)封(feng)等(deng)(deng)級及(ji)完整性(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)下(xia)(xia)(xia)降，這在(zai)(zai)工(gong)業工(gong)況(kuang)下(xia)(xia)(xia)也是非(fei)常普遍。 硅酸鎂基墊(dian)(dian)(dian)片(pian)材(cai)料(liao)(liao)(liao)另一(yi)個顯(xian)(xian)著(zhu)的(de)(de)(de)(de)(de)(de)(de)優點是其(qi)在(zai)(zai)水(shui)(shui)(shui)中的(de)(de)(de)(de)(de)(de)(de)穩定性(xing)(xing)，即疏水(shui)(shui)(shui)性(xing)(xing)。由于它高溫下(xia)(xia)(xia)不(bu)(bu)但不(bu)(bu)吸水(shui)(shui)(shui)，還會(hui)(hui)失水(shui)(shui)(shui)，因此在(zai)(zai)生成(cheng)水(shui)(shui)(shui)的(de)(de)(de)(de)(de)(de)(de)熱循環(huan)工(gong)況(kuang)下(xia)(xia)(xia)或暴露于潮(chao)濕(shi)的(de)(de)(de)(de)(de)(de)(de)儲存條件下(xia)(xia)(xia)也不(bu)(bu)受影響，是穩定性(xing)(xing)很(hen)好(hao)的(de)(de)(de)(de)(de)(de)(de)密(mi)封(feng)材(cai)料(liao)(liao)(liao)。 THEMa-PURTM材(cai)質(zhi)(切割墊(dian)(dian)(dian)片(pian)4122-FC)和蛭石(shi)材(cai)質(zhi)實驗室(shi)測(ce)試數(shu)據(ju)對比，在(zai)(zai)苛(ke)刻的(de)(de)(de)(de)(de)(de)(de)熱循環(huan)條件下(xia)(xia)(xia)THEMa-PURTM顯(xian)(xian)示出(chu)明顯(xian)(xian)的(de)(de)(de)(de)(de)(de)(de)低泄漏密(mi)封(feng)性(xing)(xing)能(neng)。對于墊(dian)(dian)(dian)片(pian)產品來說(shuo)，主要的(de)(de)(de)(de)(de)(de)(de)還要看墊(dian)(dian)(dian)片(pian)的(de)(de)(de)(de)(de)(de)(de)密(mi)封(feng)性(xing)(xing)能(neng)。THEMa-PURTM纏繞墊(dian)(dian)(dian)片(pian)不(bu)(bu)僅僅具有長(chang)久的(de)(de)(de)(de)(de)(de)(de)抗氧(yang)(yang)化(hua)(hua)(hua)(hua)性(xing)(xing)能(neng)，而(er)且也比其(qi)他類似墊(dian)(dian)(dian)片(pian)提供了更好(hao)的(de)(de)(de)(de)(de)(de)(de)密(mi)封(feng)性(xing)(xing)能(neng)。