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<title>高铝耐火砖的技术要求 - 东方炉衬</title>
<meta name="description" content="根据Al2O3含量高铝砖可以分为四个等级：Ⅰ级—Al2O3含量＞75%；Ⅱ级—Al2O3含量为60-75%；Ⅲ级—Al2O3含量为48-60%；特级高铝砖Al2O3含量为80%。其中，氧化铝含量在48%以上属于中性耐火材料。其由矾土或其它氧化铝含量较高的原料经成型和煅烧而成，热稳定性高，耐火度在1770℃以上。抗渣性较好，主要用于砌筑高炉、热风炉、电炉炉顶、鼓风炉、反射炉、回转窑，循环流化床锅炉等内衬。 郑州东方炉衬材料有限公司生产的产品，具有高温蠕变小、抗侵蚀性强、热震稳定性好等优点，适用于大、">
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<meta property="og:description" content="根据Al2O3含量高铝砖可以分为四个等级：Ⅰ级—Al2O3含量＞75%；Ⅱ级—Al2O3含量为60-75%；Ⅲ级—Al2O3含量为48-60%；特级高铝砖Al2O3含量为80%。其中，氧化铝含量在48%以上属于中性耐火材料。其由矾土或其它氧化铝含量较高的原料经成型和煅烧而成，热稳定性高，耐火度在1770℃以上。抗渣性较好，主要用于砌筑高炉、热风炉、电炉炉顶、鼓风炉、反射炉、回转窑，循环流化床锅炉等内衬。 郑州东方炉衬材料有限公司生产的产品，具有高温蠕变小、抗侵蚀性强、热震稳定性好等优点，适用于大、&#38;hellip;">
<meta property="article:published_time" content="2018-01-19 10:11:33">
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<div class="wrap breadcrumb"><div class="container"><a href="https://www.zzdflc.com/">首页</a> &gt; <a href="https://www.zzdflc.com/jishu/">技术知识</a> &gt; 高铝耐火砖的技术要求</div></div>
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<h1 class="caption-md">高铝耐火砖的技术要求</h1>
<p class="meta"><span class="avatar"><img src="/dm-content/uploads/ougtw41fmrs9pyevq5n028dx.png!20" alt="东方炉衬" width="20" height="20" loading="lazy"/>东方炉衬</span><span class="time">2018-01-19</span><span class="views">22</span></p>
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<p>根据Al2O3含量高铝砖可以分为四个等级：Ⅰ级&mdash;Al2O3含量＞75%；Ⅱ级&mdash;Al2O3含量为60-75%；Ⅲ级&mdash;Al2O3含量为48-60%；特级高铝砖Al2O3含量为80%。其中，氧化铝含量在48%以上属于中性耐火材料。其由矾土或其它氧化铝含量较高的原料经成型和煅烧而成，热稳定性高，耐火度在1770℃以上。抗渣性较好，主要用于砌筑高炉、热风炉、电炉炉顶、鼓风炉、反射炉、回转窑，循环流化床锅炉等内衬。</p><p style="text-align: center;"><img src="/dm-content/uploads/454bb4eb1faf0d512744eda3026d4b1e.jpg" alt="高铝黏土质托架砖3.jpg" width="750" height="750" loading="lazy"></p><p>郑州东方炉衬材料有限公司生产的产品，具有高温蠕变小、抗侵蚀性强、热震稳定性好等优点，适用于大、中型循环流化床锅炉等。</p><p>在传统耐材行业，高铝砖和多熟料粘土砖的生产工艺较为类似。其主要区别在于配料中熟料比例，前者熟料比例最高可达到90～95%。熟料在破碎前经分级拣选和筛分除铁，烧成温度较高。如Ⅰ、Ⅱ等高铝砖用隧道窑烧成时温度一般为1500～1600℃。</p><p>高铝砖具有一下三个较为明显的特点：1）耐火度高铝砖的耐火度比粘土砖和半硅砖的耐火度都要高，达1750~1790℃，属于高级耐火材料。2）荷重软化温度因为高铝制品中Al2O3高，杂质量少，形成易熔的玻璃体少，所以荷重软化温度比粘土砖高，但因莫来石结晶未形成网状组织，故荷重软化温度仍没有硅砖高。3）抗渣性高铝砖中Al2O3较多，接近于中性耐火材料，能抵抗酸性渣和碱性渣的侵蚀，由于其中含有SiO2，所以抗碱性渣的能力比抗酸性渣的能力弱些。</p><p>国家汇编出版的GB/T2988-2012标准，规定了高铝砖的分类、形状尺寸、技术要求、试验方法、质量评定程序、包装、标志、运输、储存及质量证明书。该标准普遍适用于高温窑炉用普通高铝砖和低蠕变高铝砖。</p><p>通常情况下，高铝砖分为普通高铝砖和低蠕变高铝砖两大类。其中普通高铝砖是指以煅烧矾土为主要原料烧成的普通高铝制品。低蠕变高铝砖一般是指蠕变率较低的烧成高铝制品。</p><p>普通高铝砖按理化指标分为LZ-48、LZ-55、LZ-65、 LZ-70、LZ-75、LZ-80、LZ-55G、LZ-65G、LZ-75G九个牌号。牌号中L、Z为铝、砖的汉语拼音首字母，数字为氧化铝质量分数，其后的G代表高炉用砖。低蠕变高铝砖按理化指标分为DRL-155、DRL-150、DRL-145、DRL-140、DRL-135、DRL-130、DRL-127七个牌号。牌号中D、R、L为低、蠕、铝的汉语拼音首字母，数字为蠕变率试验温度的1/10。</p><p>高铝砖的形状尺寸应符合GB/T 2992.1、GB/T 20511、YB/T 2217、YB/T 4198、YB/T 5012和YB/T 5018的规定，亦可按客户提供的图纸进行指定生产。高铝砖的技术要求、理化指标应符合国家标准要求。</p> </div>
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<li><a href="https://www.zzdflc.com/wenti/355.html">轻质耐火浇注料和重质耐火浇注料的区别</a></li><li><a href="https://www.zzdflc.com/jishu/1227.html">浇注料打多厚是最合理的？</a></li><li><a href="https://www.zzdflc.com/jishu/1269.html">耐磨耐火浇注料脱落怎么办？</a></li><li><a href="https://www.zzdflc.com/dongtai/1066-1.html">郑州东方炉衬荣膺2025年河南省服务型制造创新企业称号</a></li><li><a href="https://www.zzdflc.com/wenti/824.html">刚玉耐磨耐火浇注料特点有哪些</a></li><li><a href="https://www.zzdflc.com/jishu/171.html">如何增加循环流化床锅炉内衬的强度</a></li><li><a href="https://www.zzdflc.com/wenti/345.html">决定耐火自流浇注料的价格因素</a></li><li><a href="https://www.zzdflc.com/jishu/156.html">不定形耐火材料的应用</a></li> </ul>
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<li><a href="https://www.zzdflc.com/jishu/1229.html">耐火浇注料在建筑行业的用途</a></li><li><a href="https://www.zzdflc.com/jishu/298.html">水泥窑用耐高温浇注料常见材料性能说明</a></li><li><a href="https://www.zzdflc.com/jishu/391.html">刚玉莫来石浇注料哪家买质量好</a></li><li><a href="https://www.zzdflc.com/jishu/319.html">低水泥耐火浇注料的用途</a></li><li><a href="https://www.zzdflc.com/jishu/1031.html">为了能让浇注料产业得到发展，国家豁出去了！</a></li><li><a href="https://www.zzdflc.com/jishu/1174.html">耐火可塑料跟传统的耐火浇注料最大的区别取决于它这方面的性能</a></li><li><a href="https://www.zzdflc.com/jishu/1020.html">轻质耐火浇注料跟保温浇注料有什么区别吗</a></li><li><a href="https://www.zzdflc.com/jishu/1189.html">耐火浇注料在施工前一定要注意的十件事情</a></li> </ul>
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