石英质捣打料
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一、产品性能指标：
| 性能 Properey | GGD-1 | GGD-2 | GGD-3 | GGD-4 | GGD-5 | ||
| 牌号 Brand | |||||||
| 化学成分（%）Chemical composition | SiO2≥ | 95 | 96 | 96 | 97 | 90 | |
| Al2O3≤ | 0.7 | 0.6 | 0.6 | 0.5 | 0.4 | ||
| Fe2O3≤ | 0.5 | 0.5 | 0.4 | 0.4 | 0.8 | ||
| 冷态耐压强度（Mpa) Cold crushing strength | 1350℃×3h After firing at | 15 | 15 | 10 | 10 | 25 | |
| 显气孔率（％） Ａpparent porosity | 1350℃×3h After firing at | 26 | 26 | 25 | 25 | 23 | |
| 烧后线变化率（％）Linear changing after burnt | 1350℃×3h After firing at | 0～+1.6 | 0～+1.6 | 0～+1.2 | 0～+1.2 | 0～+1.0 | |
| 体积密度（g/cm3）Bulk density | 1350℃×3h After firing at | 2.0 | 2.0 | 2.1 | 2.1 | 2.2 | |
| 耐火度(℃) Refractoriness | 1630 | 1650 | 1650 | 1680 | — | ||
| 集料粒度(mm)Max. grain size of aggregate | 5 | 4.5 | 4.5 | 4.2 | 4.2 | ||
| 施工用量(kg/m3) Amount for construction | 2300 | 2300 | 2300 | 2400 | 2400 | ||
| 施工方式 Mathod of construction | 振动或捣打 Jolt or ramming | ||||||
| 应用 Application | 青铜bronze | 紫铜.黄铜copper brass | 白铜cupronickel | 钢.铁stee l | 铝及合金aluminium | ||
| 金属熔炼炉、保温炉 Melting furance for nonferrous metals | |||||||
| 特点 Characteristic | 价廉 保温 节电 不沾渣 快速干燥 化学结合 耐侵蚀Cost down Thernalinsulation Economy electricity Nostickresidue Fast drying Chemicalbonded Corrosion r | ||||||
