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		<div class="project_tit_right"><a href="index.php">当前位置：首页</a> >	<a href="index.php?p=news_list&lanmu=6">安防资讯</a> > <a href="index.php?p=news_list&c_id=18&lanmu=6">安防知识</a></div>
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		<div class="New_tit">防火门小知识</div>
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		<div class="New_fb">发布者：山西超跃安防科技有限公司&nbsp;&nbsp;&nbsp;发布于：2019-10-10&nbsp;&nbsp;&nbsp;浏览量：5588</div>
		<div class="New_con"><span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">防火门对于很多人来说一个生活中很常见但又有点陌生的名词，每天总是能看到，但对它的定义和分类却总是含混不清。但实际上，防火门对于保障我们日常生活的消防******非常重要，多了解一下它是十分必要的。以下便是王力安防为您总结的防火门基础知识大全。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">1.防火门组成部分</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">防火门是指在一定时间内，连同框架能满足耐火稳定性、完整性和隔热性要求的门。防火门的主要部件包括门扇、门框、玻璃、门锁、拉手、铰链和闭门器等。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">2.防火门耐火等级</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">根据耐火极限的不同，防火门分甲、乙、丙三个等级，耐火极限分别不低于1.5h、1h与0.5h。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">3.防火门材质</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">根据材质的不同，防火门可分为钢质防火门、木质防火门与玻璃防火门。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">木质防火门是指用木材或木制品作门框、门板、骨架，在门扇内部填充不燃材料，并配以五金零件所组成的能满足耐火稳定件、完整性和隔热性要求的门。钢质防火门是指用冷轧薄钢板作门框、门板、骨架，在门扇内部填充不燃材料，并配以五金零件所组成的能满足耐火稳定件、完整性和隔热性要求的门。玻璃防火门是指完全用防火玻璃作门板的钢质防火门。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">4.防火门结构</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">防火门如按结构分类，可分为八类：单扇、双扇，单扇带玻璃、双扇带玻璃，单扇带亮窗、双扇带亮窗，单扇带玻璃带亮窗、双扇带玻璃带亮窗。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">&nbsp; &nbsp; 5.常闭式防火门</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">常闭式防火门在平时呈关闭状态，有人员走动时需要推开。常闭防火门这种开启状态存在一定的缺点，由于防火门安装的地方通常是人员经常走动的通道，造成了一定的矛盾。特别是大型商场内人员流量大，如果在其内部的疏散楼梯间设置常闭式防火门，由于开闭频繁，防火门很快就会损坏脱落，从而起不到防火作用，形成火灾隐患。</span><br />
<br />
<span style="color:#333333;font-family:" font-size:16px;background-color:#ffffff;"="">6.常开式******门</span></div>
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