粘土砖和高铝砖的区别是什么呢
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<p>粘土耐火砖</p>
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粘土耐火砖特性:1、适用范围广 2、热震稳定性好 3、高温体积稳定性好4、抗酸性熔渣能力强。
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1、根据Al2O3含量分为一等>40%、二等>35%、三等...</i>
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<p>低气孔耐火砖</p>
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低气孔粘土砖是由原料:死烧粘土孰料、死烧结合粘土、河南白焦宝石这三种原料,分别破碎成5-3mm,3-1mm,及≤0.088mm配合其他6种添加剂制成六种泥料混炼为颗粒,结合剂、细粉、均匀后,在260T的摩擦压砖上,用标准砖模压制成砖坯打击6-8次,在干燥窑内110°C烘干16h,待...</i>
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<p>高铝耐火砖</p>
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高铝耐火砖特 性
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℃,属于较好耐火材料。
2、荷重软化温度
因为高铝制...</i>
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<p>耐火砖</p>
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耐火砖简称火砖。用耐火黏土或其他耐火原料烧制成的耐火材料。主要用于砌冶炼炉,能耐1580℃—1770℃的高温。按形状和尺寸可分为标准型砖、普通砖、特异型砖等。
自身属性
&n...</i>
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<p>高铝砖</p>
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高铝砖是耐火材料的一种,这种耐火材料砖的主要成分是Al2O3。
如Al2O3含量高于90%,称为刚玉砖。由于资源不同,各国标准也不完全一致。例如欧洲各国对高铝质耐火材料规定Al2O3含量下限为42%。在中国,按高铝砖中Al2O3含量通常分成三等:Ⅰ等──Al2O3含量...</i>
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<p>玻璃炉粘土砖</p>
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玻璃炉粘土砖基本成分及其性能
玻璃熔窑用粘土砖其主要成分是Al2O3含量为30~48%、SiO2含量为50~70%;
它是偏酸性的耐火材料,随着砖中Al2O3含量的增加其酸性逐渐减弱,因此粘土砖宜用于酸性窑炉环境;能抵抗酸性熔渣和酸性气体的侵蚀,对碱性物质...</i>
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山东耐火材料有限公司主要生产<strong>低气孔耐火砖</strong>、<strong>粘土耐火砖</strong>等耐火材料。耐火砖厂家销售价格低,规格尺寸全,使用性能稳定可靠,在市场上享有一定的声誉。并广泛应用于冶金、建材、化工、冶炼、陶瓷、玻璃、电力能源等各行各业,产品远销全国各地。
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我厂坚持以质量求生存,以信誉求发展,以科技为先导,坚持重合同守信用的经营作风,想用户所想,急用户所急,为用户提供一切方便,生产更多更好的耐火材料,保温材料,为全国各地用户服务。<span id="__kindeditor_bookmark_end_7__"></span>
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<div class="new_con">粘土耐火砖确实是高温作业的优选材料,这主要得益于其耐火性能、高温稳定性以及相对较低的成本。以下是对粘土耐火砖作为高温作业优选材料的详细分析:
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<div class="new_con">低气孔耐火砖以其优异的高温性能、抗侵蚀性能、热震稳定性和高密度等特性,在生产过程中发挥着不可替代的作用。低气孔耐火砖的主要特性体现在以下几个方面:
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<div class="new_con">粘土耐火砖的价格受多种因素影响,包括产品的规格、品质、产地、生产工艺以及市场供需关系等。因此,其价格存在一定的浮动范围。以下是对粘土耐火砖价格的大致归纳:
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<div class="new_con">低气孔耐火砖作为一种性能优越的耐火材料,具有多种显著的作用和优势,主要包括以下几个方面:
1.高强度与耐火度高
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粘土砖也叫烧结砖,是建筑所用的人造小型块材,粘土砖以粘土(包括页岩、煤矸石等粉料)为主要原料,经过泥料处理、成型、干燥和焙烧而成,有实心和空心的分别。那么粘土砖和高铝砖的区别究竟在哪里呢?
高铝砖是铝含量大于百分之四十八的耐火制品,高铝砖耐火度与荷重软化温度都均高于粘土砖,抗渣蚀性较好,但是热稳定性不如粘土砖好。高铝砖致密度高,气孔率低、耐磨。一些炉型的炉头和炉底部位,用高铝砖砌筑效果较好;但是如果是炭素炉用特定粘土砖,用高铝砖反而就不合适了,因为高铝砖在高温下容易产生卷边翘角。
粘土砖是铝含量在百分之三十五至四十五,是用硬质的粘土熟料,经过粒度要求进行配料,经过成型、干燥后,在1300-1400℃温度下烧制而成。粘土砖烧制过程,其实是高岭石不断地失水分解生成莫来石结晶的过程。粘土砖属于弱酸性的耐火制品,能够抵抗酸性熔渣与气体的侵蚀。
粘土砖在零至一千摄氏度的温度范围内,粘土砖的体积随温度升高均匀膨胀,线膨胀曲线近似于一条直线,线膨胀率为百分之零点六至零点七。粘土砖温度超过1200℃后,粘土砖中的低熔点物开始逐渐熔化,因颗粒受表面张力的作用而互相靠得很紧,从而产生体积收缩。
高铝砖主要用于砌筑高炉、电炉炉顶、鼓风炉、回转窑内衬等。高铝砖广泛用做平炉蓄热式格子砖、浇注系统用的塞头、水口砖等。但高铝砖的价格要比粘土砖高,所以用粘土砖能够满足要求的地方还是选用粘土砖。