鋯 英 粉Zircon flour 鋯英粉是由天然礦砂—鋯英砂粉碎而成。主要成分為ZrSiO4（硅酸鋯）。理論上ZrO2為67.1%，SiO2為32.9%?，F(xiàn)在市場上銷售的產(chǎn)品以ZrO2含量計算純度。 天然一級鋯英粉中ZrO2含量為65%左右，比重4.6-4.7g/cm3，莫氏硬度7-8。硅酸鋯化學(xué)性質(zhì)非常穩(wěn)定，熔點2550℃。因此在摩擦材料中應(yīng)用可以取得非常理想的效果。主要特點是：1. 提高摩擦系數(shù)。2. 由于其抗熱震動特性，不產(chǎn)生震動噪音。3. 應(yīng)用為增磨劑時磨損較小Zircon flour is made of matural ore-zirconium sand grinding.the main compostion is ZiSiO.ZrO is 67.1% and SiO is 32.9%.Now on the market by ZrO2 content product purity of calculation.Natural level zircon powder content for 65% of ZrO2,proportion of 4.6-4.7g/cm3,7-8’s hardness.ZrSiO chomistry is very stable,melting point 2550℃.therefore in the friction materials can be obtained in the application of the ideal effect.Key features are:1.Increase friction coefficient.2.due to its thermal vibration characteristics,no vibration noise.3. When applied to increase grinding wear small.主要技術(shù)指標(biāo)：Its main technical indices:

檢 測 項 目Testing Items	單 位Units	標(biāo)準(zhǔn)數(shù)值Standard values	數(shù)值范圍Numerical range
比重Density松散密度Porosity震實密度Tap density篩分分析Screening analysis粒子尺寸Particle size 0.045 mm粒子尺寸Particle size 0.045 mm粒子尺寸Particle size105 ℃揮發(fā)份Volatile 105℃800 ℃灼燒損失residue on ignition , 800℃化學(xué)成分Chemical analysis硅酸鋯ZrSiO4總的化學(xué)分析General chemical analysis.ZrO2SiO2	g/cm3mi/100gml/100g%% μm%%%%%	4.6-4.760370100250.050.19865．2132	57-6434-40 0.1 991.0-45 0.1 0.3