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src="http://images.hisupplier.com/var/userImages/202007/18/113842577183_s.jpg" alt="海南四氟板——四氟板使用的過程中的注意事項" /> </div> <div class="contentText"> <p><strong style="white-space: normal;">海南四氟板——</strong>在四氟板使用的過程中，我們需要注意什么事情？</p><p><br/></p><p>眾所周知，聚四氟乙烯（Teflon）墊板又稱四氟板，是良好的密封材料，適用于法蘭不平整表面的密封，對有凹凸痕跡或劃痕的法蘭密封面有一定的修補作用。那么，你知道如何使用四氟板嗎？在四氟板使用的過程中，又需要注意什么呢？</p><p><br/></p><p>1.聚四氟乙烯（PTFE）基板具有“冷流性”，即材料和制品在長期連續載荷作用下的塑性變形（蠕變），對其應用帶來一定的局限。例如，當用聚四氟乙烯作為密封墊片時，將螺栓擰緊，以便密封嚴密，當超過比壓應力時，墊片會產生“冷流”（蠕變）并被壓扁。我們可以通過添加適當的物料和改進零件結構的方法，來克服這些問題。</p><p><img class="img-thumbnail" src="http://images.hisupplier.com/var/userImages/202007/18/113834555123.jpg" title="timg+%285%29.jpg" alt="timg+%285%29.jpg"/></p><p>2.導熱系數低、導熱性差，不僅不能用作承重材料，而且在制作厚壁制品時也不能淬火。</p><p><br/></p><p>3.熔體的粘度很高，在高溫下不流動。當高于熔點（327）時，熔體粘度達到1010pa.s，即使加熱到分化溫度也不流動，不可能采用一般的熱塑性成型方法，而是采用類似粉末冶金的燒結方法。</p><p><br/></p><p>4.聚四氟乙烯基板的線膨脹系數是鋼的10～20倍，比大多數塑料的線膨脹系數大。在聚四氟乙烯的應用中，如果對這方面的性能不夠重視，很容易造成損耗。</p><p><img class="img-thumbnail" src="http://images.hisupplier.com/var/userImages/202007/18/113840652567.jpg" title="u%3D3383198654%2C1857482038%26fm%3D26%26gp%3D0.jpg" alt="u%3D3383198654%2C1857482038%26fm%3D26%26gp%3D0.jpg"/></p><p>5.當溫度超過400℃時，會使得聚四氟乙烯的裂解速度變快，主要分化產物為四氟乙烯、全氟丙烯和八氟環丁烷。超過475，分化產物含有很少量劇毒的全氟異丁烯。因此，應注意聚四氟乙烯墊片的加熱溫度不應超過400度，實驗室應具有良好的通風系統，以排放有毒氣體。</p><p><br/></p><p>6.聚四氟乙烯（PTFE）背板具有優異的非粘性，就使得它在工業上應用受到了局限。它是很好的防粘材料，這使得它很難與其他物體的表面粘合。</p><p><br/></p><p>7.為了保證四氟板的所有軸承在使用過程中都能方便地更換，需要在底架開始連接處進行更好地連接，整個聚四氟乙烯板生產的底架將有更多的鋼槽。這樣可以提高一系列的防潮性能。同時，也可以采用這種方法來提高抗震性能。</p><p><br/></p><p>好了，以上就是在四氟板使用過程中所要注意的幾點內容，希望大家能夠多了解一下，才不會對整個生活和生產造成影響。</p><p> ——<strong>海南四氟板,海南四氟板批發,海南四氟板廠家</strong></p> </div> <div class="share_div"></div> <div class="navBelow"> <div class="navPrev"> 上一篇：<a href="/about-us/detail-330256.html" title="海南四氟板——怎樣鑒定四氟板的好壞">海南四氟板——怎樣鑒定四氟板的好壞</a> </div> <div class="navNext"> 下一篇：<a href="/about-us/detail-330077.html" title="海南絕緣板——使用絕緣膠板的注意事項">海南絕緣板——使用絕緣膠板的注意事項</a> </div> </div> </div> </div> </div> <script 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