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normal;"><span style="font-size: 18px;"></span><strong style="font-size: 18px;">電話：18876846620 陳經理</strong></p><p style="white-space: normal;"><span style="font-size: 18px;"><strong> 18100963032</strong></span></p><p style="white-space: normal;"><span style="font-size: 18px;"><strong>網址：</strong></span><a href="http://www.dginstrument.com/" _src="http://www.dginstrument.com" style="font-size: 18px;"><strong>www.dginstrument.com</strong></a></p><p style="white-space: normal;"><span style="font-size: 18px;"><strong>地址：?？谑心虾４蟮琅c長彤路交叉路口</strong></span></p><p><br/></p> </div> </div> </div> <div class="page-message-img"> <a href="http://www.dginstrument.com/inquiry/"><img src="http://www.dginstrument.com/data/upload/201908/20190819160028_346.png" alt=""></a> </div> </div> </div> <div class="page-wrap-right"> <div class="xypg-right-content">  <div class="xypg-news-detail"> <h1 class="xypg-detail-title">海南拉彎加工廠家關于鋁型材拉彎的一般常識介紹</h1> <div class="xypg-detail-info-bar"> <div class="detail-info-time"><i class="icon-font icon-shijian"></i>2019-12-20 12:15:18</div> <div class="detail-info-numbers"><i class="icon-font icon-chakan"></i><script src="http://www.dginstrument.com/source/include/browse.php?model=news&id=412"></script>次</div> </div> <div class="xypg-detail-con"><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">拉彎加工廠家關于型材拉彎工藝特點及要求</span>?</span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">1<span style="font-family:宋體">、?所謂拉彎即是在給于型材預制拉力（在屈服極限范圍內）的前提下，利用旋轉和靠模改變型材斷面變形中介面（內移）使其塑性變形的過程。?</span></span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">2<span style="font-family:宋體">、?拉彎廠家關于備料長度：一般情況下備料應是所需彎曲材料的有效弧長加上工藝段之和，工藝段等于</span><span style="font-family:Calibri">2.1</span><span style="font-family:宋體">倍的變形寬度（</span><span style="font-family:Calibri">t</span><span style="font-family:宋體">），變形寬度（</span><span style="font-family:Calibri">t</span><span style="font-family:宋體">）等于外半徑（</span><span style="font-family:Calibri">R </span><span style="font-family:宋體">外）減內半徑（</span><span style="font-family:Calibri">R </span><span style="font-family:宋體">內）。備料長度</span><span style="font-family:Calibri">=</span><span style="font-family:宋體">有效弧長</span><span style="font-family:Calibri">+2.1t</span><span style="font-family:宋體">，當然具體備料長度可以根據實際情況考慮套裁，以便節省工藝段。? </span></span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">3<span style="font-family:宋體">、?拉彎廠專家關于備料數量：一般情況下應根據不同斷面、不同半徑、不同弧長在實際需要數量基礎上增加</span><span style="font-family:Calibri">1~2</span><span style="font-family:宋體">支備份，以便做為調試模具用。該備份未考慮材料彎曲后的運輸、加工、安裝等環節可能出現的損失數量。?</span></span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">4<span style="font-family:宋體">、?</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">海南</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">拉彎廠專家關于材料每支彎曲有效弧長的要求：通常情況下不應超</span> <span style="font-family:宋體">過弧度角</span>180<span style="font-family:宋體">度。?</span></span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">5<span style="font-family:宋體">、?</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">海南</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">拉彎廠專家關于材料硬度狀態的要求：當型材彎曲的伸長率滿足變</span> <span style="font-family:宋體">形量要求時應選擇</span>T5<span style="font-family:宋體">狀態</span><span style="font-family:Calibri">,</span><span style="font-family:宋體">?否則應選擇</span><span style="font-family:Calibri">To~T4</span><span style="font-family:宋體">狀態。當然型材生產廠一般不愿意給客戶生產</span><span style="font-family:Calibri">T1~T4</span><span style="font-family:宋體">狀態型材。</span></span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px">6</span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">海南</span></span><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">拉彎廠專家關于型材表面處理要求：通常情況下可以選擇陽極氧化</span> <span style="font-family:宋體">或涂裝后彎曲加工（涂層的伸長率遠大于型材的伸長率）；因為型材拉彎時型材與模具之間沒有相對位移，故不會損傷型材。如型材彎曲過程中涂層脫落則是涂層的附著力不足原因造成的，產生附著力不足的原因主要有噴涂前處理不好或加溫不足及加溫時間不足造成。當然為方便運輸和安裝應適當做表面保護。</span>? </span></p><p style="text-indent: 28px"><span style=";font-family:宋體;font-size:14px"><span style="font-family:宋體">上述介紹只是一般的常識說明，具體情況需視工程項目要求的分格、結點及選材等特點確定。</span></span></p><p style="text-align: center;"><img src="/data/upload/201912/1576809706908342.jpg" title="海南拉彎工程.jpg" alt="海南拉彎工程.jpg" width="800" height="800" border="0" vspace="0" style="width: 800px; height: 800px;"/></p></div> <div class="xypg-detail-tags"> <div class="tags-title"> <h3>標簽</h3> <div class="baidu-share">  <div class="bdsharebuttonbox"> <a href="#" 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