硅微粉：又稱硅灰（silica powder）
 生產工藝及用途：硅灰來自于鋯英砂熔煉中的脫硅過程。在不定形耐火材料中大量使用，其具有活性高、堿金屬氧化物含量低、平均粒徑小、PH值低的優良特性。能改變不定形耐火材料的結構，增強材料強度，提高使用壽命。 Production process and application: silica powder comes from the desilication process of the zircon sand smelting. It is widely used in amorphous refractories and has excellent characteristics of high activity, low alkali metal oxide content, small average particle size and low pH value. It can change the structure of the amorphous refractory, enhance the strength of the material and increase the service life. 產品規格（specification of the product）： 硅微粉D50平均粒徑在0.5μm-1.0μm之間。 Specification of the product：The average particle size of the silicon fine powder D50 is from 0.5 μm to 1.0 μm. 
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