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<title>耐火浇注料炸裂如何解决？ - 东方炉衬</title>
<meta name="description" content="随着超细粉低水泥浇注料的广泛应用同时出现了这种浇注料在干燥加热过程中的剥落和炸裂问题，一般认为这种现象与浇注料硬化体的透气率低有关。导致浇注料透气率低的原因主要有两种：一是超细粉填充了气孔，二是低水泥浇注料的水化物 CAH10脱水生成了C2AH8和其他胶体，这种胶体使低温养护的浇注料透气性降低。 较低的透气率使得干燥时在浇注料的内部产生较大的蒸汽压力，当蒸汽压力超过浇注料抗张强度时就发生剥落和炸裂。炸裂与透气率和热导率有关，浇注料的透气率越小，热导率越大，加热时产生的水蒸气压力就越大。浇注料的抗张强度约为">
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<meta property="og:title" content="耐火浇注料炸裂如何解决？">
<meta property="og:description" content="随着超细粉低水泥浇注料的广泛应用同时出现了这种浇注料在干燥加热过程中的剥落和炸裂问题，一般认为这种现象与浇注料硬化体的透气率低有关。导致浇注料透气率低的原因主要有两种：一是超细粉填充了气孔，二是低水泥浇注料的水化物 CAH10脱水生成了C2AH8和其他胶体，这种胶体使低温养护的浇注料透气性降低。 较低的透气率使得干燥时在浇注料的内部产生较大的蒸汽压力，当蒸汽压力超过浇注料抗张强度时就发生剥落和炸裂。炸裂与透气率和热导率有关，浇注料的透气率越小，热导率越大，加热时产生的水蒸气压力就越大。浇注料的抗张强度约为&#38;hellip;">
<meta property="article:published_time" content="2019-08-28 16:26:53">
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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; 耐火浇注料炸裂如何解决？</div></div>
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<h1 class="caption-md">耐火浇注料炸裂如何解决？</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">2019-08-28</span><span class="views">12</span></p>
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<p>　　随着超细粉低水泥浇注料的广泛应用同时出现了这种浇注料在干燥加热过程中的剥落和炸裂问题，一般认为这种现象与浇注料硬化体的透气率低有关。导致浇注料透气率低的原因主要有两种：一是超细粉填充了气孔，二是低水泥浇注料的水化物 CAH10脱水生成了C2AH8和其他胶体，这种胶体使低温养护的浇注料透气性降低。</p><p align="center"><img src="/dm-content/uploads/b83151866a5f7f4a0bc9dfda7ba60447.jpg" alt="耐火浇注料炸裂如何解决？" width="500" height="310" loading="lazy"></p><p>　　较低的透气率使得干燥时在浇注料的内部产生较大的蒸汽压力，当蒸汽压力超过浇注料抗张强度时就发生剥落和炸裂。炸裂与透气率和热导率有关，浇注料的透气率越小，热导率越大，加热时产生的水蒸气压力就越大。浇注料的抗张强度约为抗折强度的1/5，对内部蒸汽压如不加以控制，很容易发生炸裂。目前，为解决低水泥浇注料的炸裂问题，一是采用合理的干燥加热制度，控制浇注料内部最大蒸汽压力值;二是在浇注料中添加防炸裂剂，以增大硬化体的透气率，降低浇注料内部最大蒸汽压力值。后一方法目前得到广泛应用。常用的添加剂有金属铝粉、有机纤维和乳酸铝等。</p><p align="center"><img src="/dm-content/uploads/0f259878ad055aed4d23d9ba8bf8411d.jpg" alt="耐火浇注料炸裂如何解决？" width="500" height="310" loading="lazy"></p><p>　　该反应的快慢与铝粉的种类、细度和浇注料养护温度有关，养护温度越高，反应越快，生成的氢气也越多。这一反应产生的气体，改变了浇注料内部的气孔孔径分布，提高了浇注料的透气率，加入铝粉后，浇注料内部形成均匀的开口气孔，透气率显著增加。因此，在加热过程中，浇注料内部水分易畅通排出，不易发生炸裂。此外，掺入铝粉，使浇注料强度提高，但H2是易燃气体，局部集聚会发生爆炸，所以使用时要小心。</p><p align="center"><img src="/dm-content/uploads/7248db6a8534f364974a3d55add83593.jpg" alt="耐火浇注料炸裂如何解决？" width="500" height="310" loading="lazy"></p><p>　　编辑搜图</p><p>　　​常用的有机纤维有天然纤维和化学纤维。天然纤维如木纤维、棉花纤维、松树针叶和稻草等。由于这些材料直径较大，近年来主要是采用化学纤维，如聚乙烯、聚丙烯等，它们的直径一般只有15&mu;m左右。这些化学纤维在较低的温度下就发生收缩和熔融，打通了孔洞，使浇注料透气率提高，但浇注料的强度稍有下降。</p><p>　　以上就是浇注料厂家给您的建议，具体的情况还需具体分析，如果您有不明白的地方，可以随时联系我们。</p><p style="text-align: right;">　　<u>​</u></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/1078.html">耐火浇注料中铝微粉、铝酸钙水泥、水的用量</a></li><li><a href="https://www.zzdflc.com/jishu/586.html">这些高铝浇注料配比和理化指标关系到产品质量</a></li><li><a href="https://www.zzdflc.com/jishu/826.html">耐火浇注料特点中这几点你确定你都知道？</a></li><li><a href="https://www.zzdflc.com/jishu/1040.html">耐火浇注料为什么会成为耐材行业的重要发展方向，看它的性能你就知道了</a></li><li><a href="https://www.zzdflc.com/jishu/203.html">高铝砖性能有哪些？</a></li><li><a href="https://www.zzdflc.com/jishu/1025.html">耐酸耐火浇注料的优点都有这些，你知道吗？</a></li><li><a href="https://www.zzdflc.com/jishu/1233.html">刚玉浇注料脱模时间如何把控？</a></li><li><a href="https://www.zzdflc.com/jishu/916.html">低水泥耐火浇注料配置时的注意事项</a></li> </ul>
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