磁力泵
在(zai)工(gong)(gong)業生產中，化(hua)工(gong)(gong)磁(ci)力(li)泵(beng)作為無泄漏，環保理(li)念，深受用戶廣泛使(shi)(shi)用，隨著需求的不同(tong)，高(gao)(gao)溫(wen)(wen)情況(kuang)下也是常有的，對于使(shi)(shi)用設備，必須(xu)具有耐高(gao)(gao)溫(wen)(wen)性，那么在(zai)高(gao)(gao)溫(wen)(wen)情況(kuang)下化(hua)工(gong)(gong)磁(ci)力(li)泵(beng)密封材(cai)質有哪些選型(xing)材(cai)料(liao)(liao)呢?為了合成新(xin)材(cai)料(liao)(liao)和提升生產效率，化(hua)工(gong)(gong)處理(li)中的工(gong)(gong)藝溫(wen)(wen)度(du)在(zai)持續升高(gao)(gao)，高(gao)(gao)溫(wen)(wen)工(gong)(gong)況(kuang)增多。在(zai)高(gao)(gao)溫(wen)(wen)范(fan)圍內，適合的非(fei)金屬墊片(pian)材(cai)料(liao)(liao)選擇性很小。

1、目前都(dou)有哪些密封材(cai)料可耐受工業高(gao)溫(wen)(wen)呢? 石墨在這個(ge)溫(wen)(wen)度下無法使用(yong)(yong)(yong)或者(zhe)無法長期使用(yong)(yong)(yong);云母和陶瓷類產品泄(xie)漏率太大;近年來(lai)蛭石基(吸水(shui)(shui)性(xing)(xing)硅(gui)(gui)酸(suan)鋁(lv)基材(cai)質)高(gao)溫(wen)(wen)密封材(cai)料有所(suo)應(ying)(ying)用(yong)(yong)(yong)，但這種材(cai)料不(bu)足是具有吸水(shui)(shui)性(xing)(xing)，不(bu)利于耐高(gao)溫(wen)(wen)化(hua)(hua)工磁力泵(beng)使用(yong)(yong)(yong)。革命性(xing)(xing)疏水(shui)(shui)性(xing)(xing)硅(gui)(gui)酸(suan)鎂(mei)基材(cai)質的(de)超(chao)高(gao)溫(wen)(wen)密封材(cai)料應(ying)(ying)勢誕生，專有設計(ji)，使用(yong)(yong)(yong)環(huan)保的(de)無溶劑工藝生產，配方*，適用(yong)(yong)(yong)于腐(fu)蝕性(xing)(xing)化(hua)(hua)學品場合。

2、常(chang)用高溫(wen)墊片性(xing)能對(dui)(dui)比，以下(xia)就常(chang)用高溫(wen)密封材(cai)料在熱(re)失(shi)重性(xing)，疏水(shui)性(xing)以及密封性(xing)幾(ji)個方面進行(xing)對(dui)(dui)比試驗。 密封材(cai)料暴(bao)露于高溫(wen)時，有(you)(you)機纖維和橡(xiang)膠(jiao)(jiao)膠(jiao)(jiao)黏劑(ji)很容易被碳化或(huo)揮發，可以通過測試高溫(wen)下(xia)密封材(cai)料的(de)重量損失(shi)來判斷(duan)其影響大小。不同(tong)高溫(wen)材(cai)料的(de)熱(re)失(shi)重分析結(jie)果。密封材(cai)料的(de)重量損失(shi)相應表明有(you)(you)體積損失(shi)，體積損失(shi)對(dui)(dui)保(bao)持密封性(xing)是非常(chang)致命的(de)。

對(dui)于墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)材(cai)(cai)料來說，抗(kang)氧(yang)化(hua)(hua)性(xing)(xing)(xing)(xing)(xing)能(neng)對(dui)于保持螺(luo)栓(shuan)的(de)(de)(de)預緊力非常重(zhong)要(yao)，一旦(dan)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)氧(yang)化(hua)(hua)失(shi)重(zhong)，就會造成(cheng)(cheng)螺(luo)栓(shuan)松(song)弛，從(cong)而(er)導致(zhi)密(mi)封(feng)(feng)泄(xie)(xie)漏(lou)。對(dui)于長(chang)期的(de)(de)(de)氧(yang)化(hua)(hua)環境也(ye)(ye)(ye)不(bu)(bu)是(shi)(shi)問題(ti)。 從(cong)制(zhi)造的(de)(de)(de)角度來說，使(shi)用親水(shui)(shui)性(xing)(xing)(xing)(xing)(xing)材(cai)(cai)料如云母(mu)、氟化(hua)(hua)云母(mu)、蛭(zhi)石、氮化(hua)(hua)硼等原材(cai)(cai)料時，其(qi)(qi)親水(shui)(shui)特性(xing)(xing)(xing)(xing)(xing)能(neng)在(zai)混合階段能(neng)很(hen)好幫助加工(gong)，也(ye)(ye)(ye)有很(hen)好的(de)(de)(de)耐溫性(xing)(xing)(xing)(xing)(xing)。然(ran)而(er)，它(ta)們在(zai)潮濕環境下(xia)(xia)會受水(shui)(shui)沾蝕(shi)性(xing)(xing)(xing)(xing)(xing)，易導致(zhi)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)材(cai)(cai)料的(de)(de)(de)密(mi)封(feng)(feng)等級及完整(zheng)性(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)下(xia)(xia)降(jiang)，這在(zai)工(gong)業工(gong)況(kuang)下(xia)(xia)也(ye)(ye)(ye)是(shi)(shi)非常普遍。 硅酸鎂基墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)材(cai)(cai)料另一個顯(xian)著的(de)(de)(de)優點是(shi)(shi)其(qi)(qi)在(zai)水(shui)(shui)中的(de)(de)(de)穩定(ding)性(xing)(xing)(xing)(xing)(xing)，即疏水(shui)(shui)性(xing)(xing)(xing)(xing)(xing)。由于它(ta)高溫下(xia)(xia)不(bu)(bu)但不(bu)(bu)吸(xi)水(shui)(shui)，還會失(shi)水(shui)(shui)，因此(ci)在(zai)生成(cheng)(cheng)水(shui)(shui)的(de)(de)(de)熱循環工(gong)況(kuang)下(xia)(xia)或(huo)暴露于潮濕的(de)(de)(de)儲(chu)存條件下(xia)(xia)也(ye)(ye)(ye)不(bu)(bu)受影(ying)響，是(shi)(shi)穩定(ding)性(xing)(xing)(xing)(xing)(xing)很(hen)好的(de)(de)(de)密(mi)封(feng)(feng)材(cai)(cai)料。 THEMa-PURTM材(cai)(cai)質(切割墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)4122-FC)和蛭(zhi)石材(cai)(cai)質實驗室測試數據對(dui)比，在(zai)苛刻的(de)(de)(de)熱循環條件下(xia)(xia)THEMa-PURTM顯(xian)示出明顯(xian)的(de)(de)(de)低泄(xie)(xie)漏(lou)密(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)。對(dui)于墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)產品來說，主要(yao)的(de)(de)(de)還要(yao)看墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)的(de)(de)(de)密(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)。THEMa-PURTM纏繞墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)不(bu)(bu)僅僅具有長(chang)久的(de)(de)(de)抗(kang)氧(yang)化(hua)(hua)性(xing)(xing)(xing)(xing)(xing)能(neng)，而(er)且也(ye)(ye)(ye)比其(qi)(qi)他(ta)類似(si)墊(dian)(dian)(dian)(dian)(dian)片(pian)(pian)提供(gong)了更好的(de)(de)(de)密(mi)封(feng)(feng)性(xing)(xing)(xing)(xing)(xing)能(neng)。