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title="防爆法蘭加熱管">防爆法蘭加熱管</a></li> <li><a href="http:///tag/鐵氟龍防腐蝕加熱管" title="鐵氟龍防腐蝕加熱管">鐵氟龍防腐蝕加熱</a></li> <li><a href="http:///tag/熱輻射管" title="熱輻射管">熱輻射管</a></li> <li><a href="http:///tag/烘道翅片加熱管" title="烘道翅片加熱管">烘道翅片加熱管</a></li> <li><a href="http:///tag/直角引線單頭加熱管" title="直角引線單頭加熱管">直角引線單頭加熱</a></li> <li><a href="http:///tag/316防腐蝕加熱管" title="316防腐蝕加熱管">316防腐蝕加熱管</a></li> <li><a href="http:///tag/單頭不銹鋼加熱管" title="單頭不銹鋼加熱管">單頭不銹鋼加熱管</a></li> <li><a href="http:///tag/發(fā)熱管" title="發(fā)熱管">發(fā)熱管</a></li> </ul> </div> <script type="text/javascript"> $(function(){ $(".words li:odd").addClass("right_word"); }); </script> </div> <div id="d0vtihn77sl" class="box n_contact"> <h3>聯(lián)系我們</h3> <div id="d0vtihn77sl" class="content"><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">上海雄雷環(huán)?？萍加邢薰?/span></p><p style="line-height: 2em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei"; font-size: 14px;">聯(lián) 系人：趙經(jīng)理 </span></p><p 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href="http:///news/">新聞中心</a> >> <a href="http:///news/jszx30f/">技術(shù)知識</a> </div> </div> <div id="d0vtihn77sl" class="content">  <div id="d0vtihn77sl" class="news_detail"> <h1 class="title">單頭加熱管的構(gòu)成</h1> <div id="d0vtihn77sl" class="info_title clearfix"> <h3 class="title_bar"> 發(fā)布日期：<span>2022-03-21</span> 作者：<span></span> 點(diǎn)擊：<span><script src="http:///data/include/newshits.php?id=557"></script></span> </h3> <div id="d0vtihn77sl" class="share">  <div id="d0vtihn77sl" class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};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>  </div> </div> <div id="d0vtihn77sl" class="content"><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, Microsoft YaHei; font-size: 16px;"><a href='http:///product/dtjrg8f8/' target='_blank' class='key_tag'><font color=#2086ee><strong>單頭加熱管</strong></font></a>的構(gòu)成<br/> 單頭<a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>加熱管</strong></font></a>，也叫做單端<a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>電熱管</strong></font></a>，相對于雙頭電熱管而言，單頭電熱管由一端出線，一般采用星型接法。單頭電熱管一般用于模具加熱或空氣干燒，主要是模具加熱單頭電熱管，直接裝入模具的鉆孔，出線端外加墊片固定，防止電熱管移動。特別留意的是，制作單頭電熱管要考慮管徑與模板孔徑的配合，電熱管管徑太大，造成電熱管無法裝入孔位，而且考慮加熱后管的膨脹因素，為后期維修帶來不便;另外要考慮管徑不能太小，不能預(yù)留過大的與孔壁之間的空位，影響電熱管的傳熱效果和使用壽命。<a href='http:///' target='_blank' class='key_tag'><font color=#2086ee><strong>發(fā)熱管</strong></font></a>就是金屬管里面有電阻絲，和電爐絲是一樣。發(fā)熱原理:電流通過電阻要產(chǎn)生熱量。根據(jù)電熱定律:發(fā)熱量正比于電流平方與電阻之乘積。</span></p><p style="line-height: 2em; text-indent: 2em;"><span style="font-family: 微軟雅黑, Microsoft YaHei; font-size: 16px;">電流熱效應(yīng)原理:電子在電場中得到加速，獲得動能，具有速度，然后碰撞其他的微粒(原子，分子，原子團(tuán))使其他的微粒獲得動能，導(dǎo)致平均動能增大，溫度升高。電熱管的發(fā)熱原理主要是通過內(nèi)部的電阻絲通過電流發(fā)熱，在電壓固定的情況下，阻值越大，功率越小;阻值越小，功率越大。那是不是采用阻值小的電阻絲能夠更加節(jié)省成本和更大的提高熱效率呢?其實(shí)通常電阻越大,電阻絲的線徑越小，電壓固定的情況下，電阻絲通過的電流也就越大，當(dāng)通過的電流超出電阻絲的負(fù)荷時容易發(fā)生斷裂和損壞，因此電熱管的電阻并不是越大越好，應(yīng)該按照實(shí)際情況和保證正常使用選擇合適的電阻絲。</span></p><p style="line-height: 2em; text-indent: 2em; text-align: center;"><span style="font-family: 微軟雅黑, Microsoft YaHei; font-size: 16px;"><img src="http:///data/images/product/thumb_20190122105215_281.jpg" alt="" title="" style="width: 600px; height: 400px;" width="600" vspace="0" height="400" border="0"/> </span></p></div> <h3 class="tag">本文網(wǎng)址：http:///news/557.html </h3> <h3 class="tag">關(guān)鍵詞：<a href="http:///tag/%E5%8D%95%E5%A4%B4%E5%8A%A0%E7%83%AD%E7%AE%A1%E5%8E%82%E5%95%86">單頭加熱管廠商</a>,<a href="http:///tag/%E5%8D%95%E5%A4%B4%E5%8A%A0%E7%83%AD%E7%AE%A1%E7%94%9F%E4%BA%A7">單頭加熱管生產(chǎn)</a>,<a href="http:///tag/%E5%8D%95%E5%A4%B4%E5%8A%A0%E7%83%AD%E7%AE%A1%E4%BB%B7%E4%BD%8D">單頭加熱管價(jià)位</a> </h3> <div id="d0vtihn77sl" class="page">上一篇：<a href="http:///news/551.html">單頭加熱管使用時需要注意哪些？</a><br />下一篇：<span><a href="http:///news/559.html">不銹鋼加熱管產(chǎn)品特點(diǎn)</a></span></div> </div> <div id="d0vtihn77sl" class="relateproduct relate"><h4>最近瀏覽：</h4> <div id="d0vtihn77sl" class="content"> <ul id="relate_n" class="news_list clearfix"> </ul> 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