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			   <h3> 产品目录 </h3>
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			    <li> <a href="/product-51-5634.html"  冲孔封头 </a>  </li>
			   
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                    <h1 class="doc_title">异形封头  </h1>
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                    <a href="http://www.hxft1.com"><span style="color:#ff0000;"><strong>异形封头</strong></span></a>属压力容器中锅炉部件的一种，是不标准形状的封头。联系方式【13731720882】通常是在压力容器的两端使用的封头是压力容器上的端盖，是压力容器的一个主要承压部件。所起的作用是密封作用。<a href="http://www.hxft1.com">一是做成了罐形压力容器的上下底，二是管道到头了，不准备再向前延伸了，那就用一个封头在把管子用焊接的形式密封住。随着我国经济持续、</a>快速发展，特别是石油化工、能源、电力、冶金、城市建设的发展，人民生活水平的提高，社会对压力管道的需求也迅速增加，压力管道安全逐步成为了国家公共安全的重要组成部分。我国压力管道在&ldquo;十二五&rdquo;期间将取得长足发展。 　<br/>
　封头是容器的一个部件根据几何形状的不同，可分为球形、椭圆形、碟形、球冠型、锥壳和平盖等几种，其中球形 、椭圆形、碟形、球冠型封头又统称为凸型封头。在焊接上分为对焊封头，承插焊封头。运用于各种容器设备，如储罐、换热器、塔、反应釜、锅炉和分离设备等。执行标准有GB/T12459-2005、GB/T13401-2005、DL/T695-1999、D-GD87-0607等。材质有碳钢、不锈钢、合金钢等。 　<br/>
　封头是石油化工、原子能到食品制药诸多行业压力容器设备中不可缺少的重要部件。 　<br/>
　封头是压力容器上的端盖，是压力容器的一个主要承压部件。 　<br/>
　封头的品质直接关系到压力容器的长期安全可靠运行。<br/>
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