一、高铝粉简介

高铝粉是由铝矾土生料经过高温焙烧、水洗、人工精选、破碎、筛分、雷蒙、磁选、除铁等机加工工艺制成。部分行业要求材料还经过水洗，酸洗等特殊处理，进一步保证了高铝粉品质，减少杂质含量。我公司生产的高铝粉，高铝砂，高铝细粉具有铝高、含铁低、硬度高、热膨胀系数小、耐火度高、热化学性能稳定等特点。

A brief introduction of high aluminum powder

High alumina powder is made from high quality bauxite raw materials by high temperature calcination, water washing, manual selection, crushing, sieving, Raymond, magnetic separation and iron removal. Some advanced materials are also treated by water washing, acid washing and other special treatments, which further guarantee the quality of high aluminum powder and reduce the content of impurities. The high alumina powder, high alumina sand and high aluminum fine powder produced by our company are characterized by high aluminum content, low iron content, high hardness, small thermal expansion coefficient, high refractoriness and stable thermochemical properties.

二、高铝粉特性

高铝粉膨胀系数小，耐火度高，不沉淀，拉力强，粘度大，粒度均匀，高温性质稳定，使用环保，无有害气体排出，可替代其他非环保价格贵的铸造材料。用高铝粉制作的铸件表面光洁度好易清砂，型壳耐用等。

Two. Characteristics of high alumina powder

High alumina powder has small expansion coefficient, high refractoriness, no precipitation, strong pulling force, large viscosity, uniform particle size, high temperature stability, environmental protection and no harmful gas discharge. It can replace other non environmental and expensive foundry materials. With the production of high alumina casting surface finish and easy cleaning, durable shell etc

三、高铝粉理化指标

四、高铝粉应用

高铝粉广泛应用于各种铸造辅料及铸造涂料、铸造制壳，耐火材料。使用高铝细粉用于铸造用树脂类、涂料类、造型砂类、铸造辅助材料类等五大系列 60多个品种。

(1)炼铝工业。用于国防、航空、汽车、电器、化工、日常生活用品等。

(2)铸造。矾土熟料加工成细粉做成铸模后精铸。用于军工、航天、通讯、仪表、机械及医疗器械部门。

(3)用于耐火制品。高铝矾土熟料耐火度高达1780℃，化学稳定性强、物理性能良好。

(4)硅酸铝耐火纤维。具有重量轻，耐高温，热稳定性好，导热率低，热容小和耐机械震动等优点。用于钢铁、有色冶金、电子、石油、化工、宇航、原子能、国防等多种工业。它是把高铝熟料放进融化温度约为2000～2200℃的高温电弧炉中，经高温熔化、高压高速空气或蒸汽喷吹、冷却，就成了洁白的“棉花”--硅酸铝耐火纤维。它可压成纤维毯、板或织成布代替冶炼、化工、玻璃等工业高温窑炉内衬的耐火砖。消防人员可用耐火纤维布做成衣服。

(5)以镁砂和矾土熟料为原料，加入适当结合剂，用于浇注盛钢桶整体桶衬效果较佳。

(6)制造矾土水泥，研磨材料，陶瓷工业以及化学工业可制铝的各种化合物。

Four. Application of high alumina powder

High alumina powder is widely used in all kinds of precision casting excipients and casting coatings, casting shell, refractory materials. Five series of more than 60 varieties, such as resin, paint, molding sand and casting auxiliary materials, are used for the casting of high alumina powder.

(1) aluminum smelting industry. It is used for national defense, aviation, automobile, electrical appliances, chemical industry, daily necessities and so on.

(2) precision casting. The bauxite clinker is processed into fine powder to make the mold after casting. It is used in military, aerospace, communication, instrument, machinery and medical equipment departments.

(3) used for refractory products. The refractoriness of high alumina bauxite clinker is up to 1780 C, strong chemical stability and good physical properties.

(4) aluminum silicate refractory fiber. It has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance. It is used in many industries, such as iron and steel, nonferrous metallurgy, electronics, petroleum, chemical, aerospace, atomic energy, national defense and so on. It is a high-temperature electric arc furnace with high aluminum clinker placed at a melting temperature of about 2000~2200 degrees. After melting at high temperature, high pressure, high speed air or steam injection and cooling, it becomes a clean cotton, aluminum silicate refractory fiber. It can be pressed into a fiber blanket, plate or fabric instead of a refractory brick lining in the smelting, chemical, glass and other industrial high-temperature kiln furnaces. Firemen can make clothes made of fireproof fabric.

(5) with magnesia and bauxite as raw material, adding appropriate binder, used for pouring ladle lining the whole barrel effect.

(6) the manufacture of alumina cement, grinding material, ceramic industry and chemical industry for all kinds of aluminum compounds.

五、常用规格

通常规格： 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,0-5mm,0-50mm,100目，200目，220目，325目；也可按要求加工其他规格。

我公司有各种规格现货： 88高铝粉、85高铝粉、80高铝粉、75高铝粉、70高铝粉以及各种高铝骨料。

Five. Commonly used specifications

Normal specifications: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-15mm, 0-5mm, 0-50mm, 100 orders, 200 orders, 220 orders, 325 orders; can also be processed by other specifications as required.

Our company has a variety of specifications: 88 high aluminum powder, 85 high aluminum powder, 80 high aluminum powder, 75 high aluminum powder, 70 high aluminum powder and all kinds of high aluminum aggregate.

巩义市宏丰耐火材料有限公司
地址：河南省巩义市河洛镇工业区
销售经理：李冰 15038023803
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