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  • 电熔莫来石

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    莫来石简介

     

          莫来石(或莫乃石)是一系 列由铝硅酸盐组成的矿物统称,这一类矿物比较稀少。是铝硅 酸盐在高温下生成的矿物,人工加 热铝硅酸盐时会形成莫来石。天然的 莫来石晶体为细长的针状且呈放射簇状。莫来石 矿被用来生产高温耐火材料。莫来石 是一种优质的耐火原料,这一类矿物比较稀少。

     

          明悦莫 来石主要特点为:膨胀均匀,热震稳定性极好,荷重软化点高,高温蠕变值小,硬度大,抗化学腐蚀性好。目前,我公司 现货供应天然烧结莫来石,高含量电熔莫来石。

     

    Mullite (or MoNaiShi) is a series of aluminium silicate mineral collectively, this kind of mineral is scarce. Is aluminum silicate under high temperature generated minerals, artificial heating will form mullite aluminum silicate. Natural mullite crystals as elongated needle and radiation clumps. Mullite ore is used to produce high temperature refractory materials. Mullite is a kind of excellent refractory raw material, this kind of mineral is scarce.

    Mullite main characteristic is: the uniform expansion, excellent thermal shock resistance, high load softening point, high temperature creep value is small, high hardness, good resistance to chemical corrosion. At present, our company cash supply natural sintered mullite, fused mullite high content.

     

    【莫来石分类】

     

          明悦莫 来石合成生产工艺有烧结法和电熔法两种。烧结莫 来石产品质量好,即结晶细小,相互犬牙交错,组织结构致密均匀;电熔莫 来石产品矿相分布欠佳,易有气泡,其组织结构致密牢固。我国用 全天然料烧结莫来石按Al2O3含量分为M70、M60、M45三个牌号,每个牌号有三个品级。

     

          烧结莫 来石采用优质天然原料,经多道工序精选均化,高温煅烧制成。烧结莫 来石产品质量稳定,广泛用 于生产各种抗热震性优良的高温低蠕制品。

     

          电熔莫 来石采用高纯度石英砂、工业氧化铝,在超大 电弧炉上熔炼而成,莫来石色泽白、残碳极低、气孔率低、杂质含量低、抗折强度大,荷重软化温度高,硬度大,高温蠕变小、针状晶体发育良好,莫来石 以其优秀的抗热震性能及耐磨性能,被广泛 应用于玻璃窑体炉衬砖、莫来石砖,大型冶 炼高炉热风炉砖、高炉低蠕变硅线石砖,陶瓷窑具、匣钵、棚板、石油化工等行业,莫来石 是高档耐火材料的原材料。常用规格:0-1、1-3、3-5、5-8、8-15mm及200目、325目等。

     

    Mullite composite production process with sintering, and fused method two kinds. Sintered mullite products of good quality, that is, crystal small, jagged, dense homogeneous structure; Fused mullite products poor ore phase distribution, easy to have bubble, its organizational structure dense solid. China's press with all natural materials sintered mullite Al2O3 content into M70, M60, M45 three grades, each brand has three grades.

    Sintered mullite is made of high quality natural ingredients, after selection process more homogenization, high temperature calcination. Sintered mullite products stable quality, widely used in the production of various kinds of good thermal shock resistance of high temperature and low creep products.

    Fused mullite using high purity quartz sand, alumina industry, on the large electric arc furnace smelting, mullite colour and lustre is white, low carbon residue, low porosity, low content of impurities, flexural strength, high refractoriness under load, high hardness, high temperature creep, acicular crystals have well developed, mullite, with its excellent thermal shock resistance and abrasion resistance, are widely used in glass kiln body lining bricks, mullite bricks, large blast furnace hot blast stove brick and low creep blast furnace sillimanite brick, ceramic kiln furniture, sagger, shed board, petrochemical and other industries, mullite is high-grade refractory raw materials.

    Specification: 0 and 1, 3, 3-1-5, 5-8, 8-15 mm and 200 mesh, 325 mesh.

     

    【烧结莫来石指标】

     

    型号

    Al2O3%

    Fe2O3%

    Na2O+K2O%

       SiO2

    吸水率%

    体积密度g/cm3

    M70

    68-73

    ≤1.0

    ≤0.35

    22-25

    ≤3

    ≥2.75

    M60

    58-62

    ≤1.0

    ≤0.3

       35-38

    ≤3

    ≥2.65

    M45

    45-47

    ≤0.8

    ≤1.6

    49-52

    ≤2

    ≥2.45

     

    【电熔莫来石指标】

     

    DM70

    Al2O3

    TiO2

    SiO2

    Fe2O3

    MgO

    CaO

    Na2O+K2O

    莫来石相

    成分(%)

    69-71

    ≤1.60

    26-28

    ≤0.40

    ≤0.50

    ≤0.30

    ≤0.40

    ≥93

     

    【莫来石用途】

     

          明悦莫 来石具有耐高温、强度高导热系数小,节能效果显著等特点,适用于石油裂介炉、冶金热风炉、陶瓷辊道窑、隧道窑、电瓷抽屉窑、玻璃坩 埚窑及各种电炉的内衬;耐火材料、陶瓷、冶金、铸造、电子等行业。

     

    High temperature resistance, high intensity and small coefficient of thermal conductivity, remarkable energy saving effect is suitable for oil cracking partition kiln, metallurgical hot stove, ceramic kiln, tunnel kiln, electric porcelain crucible kiln drawer kiln, glass and various electric furnace lining; Refractory materials, ceramics, metallurgy, casting, electronics and other industries.


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