工厂直发 耐火保温材料用高铝水泥 产地直发

         巩义市万丰磨具磨料有限公司是专业的水处理材料生产厂家，主营产品有三大系列：

       一、喷砂抛光系列：棕刚玉、黑刚玉、白刚玉、碳化硅、石榴石、玉米芯、水刀砂、抛光砂、除锈砂、还原铁粉等。

       二、滤料系列：鹅卵石、麦饭石、沸石、陶粒、磁铁矿、海绵铁等。

       三、耐火材料系列：铝矾土、蓄热球、氧化铝球、高铝球、研磨球、浇注料、耐火泥、铬刚玉、锆刚玉、锆英砂、氧化铬绿、氧化铝粉、球石、漂珠等。

       我公司一直坚持：“品质承诺、价格合理、服务快捷、诚心创新”的发展理念，不仅为客户提供高品质的产品，并努力做好客户的售后服务工作！热诚欢迎国内外宾朋光临，大量现货供应，欢迎订购！

【高铝水泥简介】

       高铝水泥又称为矾土水泥，耐火水泥，铝酸盐水泥，统称为铝酸盐水泥，是以铝矾土和石灰石为原料，经煅烧制得的以铝酸钙为主要成分、氧化铝含量约50%的熟料，再磨制成的水硬性胶凝材料。因基性能好于波特兰水泥的硅酸钙，所以它为某些特别的建筑材料提高了特殊的性能，在水化过程中，它不会释放出游离的氧化钙，对于低气孔的混凝土产品提供抵抗化学侵蚀的能力，在很多特定的建筑产品中提供极高的稳定性。也可与其它化学添加剂复合使用。高铝水泥常为黄或褐色，也有呈灰色的。具有快硬、早强、耐腐蚀、耐高温的水硬性胶凝材料；它既是一种优质的建筑材料，也是一种胶凝性散状耐火材料，在冶金、建材、石油化工、电力、食品等行业有着广泛的应用。

【高铝水泥特点】

       1、快硬早强：铝酸盐水泥凝结硬化快，一天可达到标号强度的80%以上，三天可达到标号强度的 。  

      2、抗冻性、耐腐蚀性强：铝酸盐水泥水化热集中释放，抗冻、耐腐蚀性能比普通水泥及其它水泥好，抗硫酸盐和矿物水的侵蚀性能强。  
      3、防水性能好：铝酸盐水泥混凝土因其密实，故不透水，防水性能强。  
      4、耐热性能好：铝酸盐水泥没有Ca(OH)2和因温度变化而引起体积变化效应的硅酸二钙，所以是一种性能良好的耐热水泥。所配制的混凝土耐火度可达1300-1400℃。

【高铝水泥技术要求】

         1、细度：水泥颗粒越细，比表面积越大，水化反应越快越充分，早期和后期强度都较高。国家规定：比表面积应大于300平方米/千克，否则为不合格。

       2、凝结时间：为保证在施工时有充足的时间来完成搅拌、运输、成型等各种工艺，水泥的初凝时间不宜太短；施工完毕后，希望水泥能尽快硬化，产生强度，所以终凝时间不宜太长。硅酸盐水泥的初凝时间不得早于45分钟，终凝时间不得迟于390分钟。

       3、体积安定性：水泥浆体在凝结硬化过程中体积变化的均匀性称为水泥的体积安定性。如体积变化不均匀即体积安定性不良，容易产生翘曲和开裂，降低工程质量甚至出现事故。

       4、 耐火水泥的烘烤耐火水泥炉衬进行烘烤时，必须注意下列事宜:

     （1）常温350度阶段，较易引起局部爆裂，要特别注意缓慢烘烤。如在350度保温后仍有大量蒸汽冒出，仍应减缓升温速度。
     （2）在通风不良、水气不易排出的条件下，要适当延长保温时间。
     （3）当用重油烘烤时，要严防重油喷在炉衬表面，以防局部爆裂。
     （4）当用木柴烘烤时，直接接触火焰处往往造成局部升温过急，应加以防护。
     （5）对新浇捣的耐火水泥，至少要经3d后才可进行烘烤。
     （6）对耐火水泥炉衬的冷却也应缓慢，避免强制通风。

【英文翻译】

【introduction】

high alumina cement

Also known as alumina cement, high alumina cement refractory cement, aluminate cement, collectively known as aluminate cement, bauxite and limestone as raw material, after the calcination of calcium aluminate as main ingredients, alumina content is about 50% of the clinker, again into the water rigid gelled material.Because of good performance in Portland cement calcium silicate, so it is some special building materials to improve the special performance, in the process of hydration, it will not release of free calcium oxide, for low porosity of concrete products provide the ability of resistance to chemical attack, in a lot of specific construction products provide high stability.Can also be used in combination with other chemical additives.High alumina cement is often yellow or brown, and gray.With a rapid hardening, early strength, corrosion resistance, resistance to high temperature of the water rigid gelled material;It is a kind of high-quality building materials, is also a kind of loose refractory for gelling property, in metallurgy, building materials, oil chemical, electric power, food and other industries has been widely used.
【 The characteristics of high aluminum cement】
1, rapid hardening, early strength, aluminate cement condense sclerosis is fast, a day can reach more than 80% of the strength of label, three days can reach of label strength.  
2, frost resistance, corrosion resistance is strong, aluminate cement hydration heat release, frost resistance, corrosion resistance is better than ordinary cement and other cement, sulfate and mineral water erosion resistance is strong.  
3, good waterproof performance: aluminate cement concrete because of its dense, impermeable, waterproof properties is strong.  
4, heat resistant performance is good, aluminate cement without Ca (OH) 2 and volume change caused by the temperature change and effect of dicalcium silicate, so it is a kind of good performance of cement.The preparation of concrete refractoriness of up to 1300-1400 ℃.
"High alumina cement technical requirements"
1, fineness, cement particle is fine, the bigger the specific surface area, the faster the hydration reaction more fully, the early and late strength is higher.The provisions of the state: the specific surface area should be more than 300 square meters/kg, otherwise is unqualified.
2, setting time, in order to guarantee the construction have enough time to complete mixing, transportation, forming a variety of craft, such as the initial setting time of cement shoulds not be too short;After the completion of the engineering project, the hope cement hardening, as soon as possible to produce strength, so the final setting time shoulds not be too long.The initial setting time of Portland cement shall not be earlier than 45 minutes, final set time not later than 390 minutes.
3, volume stability, water slurry uniformity of volume change in the process of condensation sclerosis called the volume stability of cement.Such as volume change uneven or volume stability, prone to warping and cracking, reduce the engineering quality and even an accident.
4, refractory cement refractory cement lining for baking, must pay attention to the following matters:
Stage (1) under normal temperature 350 degrees, the most easily cause local burst, it is important to pay special attention to the slow roasted.If there are still a lot of steam after 350 degrees heat preservation, should still slow heating speed.
(2) under the condition of poor ventilation, water discharge, should be appropriately extended holding time.
(3) when using heavy oil baking, carefully crude oil is sprayed on the surface of lining, in case of partial burst.
(4) when use firewood baked, direct contact with the flame place often causes local warming too rush, should be protected.
(5) cast of new refractory cement, at least by 3 d can be carried out only after baking.
(6) for refractory cement lining cooling should also slow, avoid forced ventilation.

【联系方式】

  公司名称：巩义市万丰磨具磨料有限公司

  公司地址：河南省巩义市建设路

  联系人：郑经理

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  Q  Q: 3075794110

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