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data-cmd="weixin"></a> </div> <script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdUrl":'http://www.212159.com/article/show/sid/999/id/304.html',"bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script> </span> </div> <ul style=" margin:10px 0px;"> </ul> <div class="text editor"> PE管的連接可靠，斷裂伸長率可達兩倍以上，不會隨便斷裂。這種管材的沖切法有哪些特點？以下是小編的整理：<br /> 　　壓力機滑塊下降時，刃口端與管壁接觸，導致管壁彈性變形。隨著刀的持續向下運動，壓力逐漸增加。當壓力達到一定值時，葉尖與PE管管壁接觸處的材料發生塑性變形，葉尖開始擠壓材料。隨著端壓縮程度的增加，應力應變高度集中，導致PE管材料瞬間脆性斷裂，端進入空腔。然后，刀的側面和陰模的側面啟動切割管壁，直到管道完全切斷。<br /> <div style="text-align:center;"> 　　<img src="/Upload/thumb_61c3e08dc93ef.jpg" width="400" height="308" title="PE管" alt="PE管" /> </div> 通過對管材沖孔工藝的分析，可以看出管材為切割時，切屑向內形成，此時模具承受不了剪切作用，PE管管會被壓扁，因此該工藝應盡量縮短。因此，刀的彎曲需要又細又長，但強度很容易折斷。如果刀片的形狀又寬又短，刀片的強度好，但切屑容易向內形成，造成嚴重壓扁。<br /> 　　 PE管適用于含硫、鈣和鎂離子的地下介質，大大節約了防腐除垢成本，使用壽命遠超其他管道。希望以上內容對你有幫助。<br /> 小編：Nancy<br /></div> <div class="page" style="clear:both;"> 上一條：<a href="http://www.212159.com/hyzx/hydt/show307.html">PE管材是影響工程總體質量的主要因素</a><br> 下一條：<a href="http://www.212159.com/hyzx/hydt/show302.html">PE管的密封方法</a><br> </div> <h4 class="related"><span style="font-weight:bold;height:30px;line-height:30px;font-size:13px; color:#fff; padding-left:10px">PE管相關資料</span></h4> <ul class="related-list"> <li><a target="_blank" title="PE管的熔接注意事項" href="http://www.212159.com/hyzx/gsxw/show153.html">PE管的熔接注意事項</a></li><li><a target="_blank" title="PE管和ppr管能熱熔嗎" href="http://www.212159.com/hyzx/hydt/show154.html">PE管和ppr管能熱熔嗎</a></li><li><a target="_blank" title="PE管漏水的原因【分析】" href="http://www.212159.com/hyzx/gsxw/show155.html">PE管漏水的原因【分析】</a></li><li><a target="_blank" title="使用PE管的規定要求" href="http://www.212159.com/hyzx/hydt/show156.html">使用PE管的規定要求</a></li><li><a target="_blank" title="PE管的幾種常用連接方法" 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