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性能指标：
| 项 目 Item |
高氧化铬础 High chromium oxide brik |
中等氧化铬砖 Medium chrome oxide brie |
铬刚玉砖 Chrome Conincm brick |
铬刚玉砖 Chrome Conincm brick |
铬刚玉砖 Chrome conndum brick |
| brick | brick | brick | brick | brick | |
| Cr2O₃ (%) | ≥93 | ≥88 | ≥60 | ≥30 | ≥12 |
| Al₂O₃ (%) | 一 | ≤38 | ≤68 | ≥80 | |
| Fe₂O₃ (%) | 一 | ≤0.2 | ≤0.2 | ≤0.5 | |
| 显气孔率(%) Apparent porosity |
≤17 | ≤17 | ≤14 | ≤16 | ≤18 |
| 体积密度(g/cm³) Bulk density |
≥4.3 | ≥4.2 | ≥3.63 | ≥3.53 | ≥3.3 |
| 常温耐压强度(Mpa) Cold crushing strengtt |
≥100 | ≥100 | ≥130 | ≥130 | ≥120 |
| 荷重软化开始温度℃(0.1Mpa,0.6%) Refractoriness under load T0.6 |
≥1680 | ≥1670 | ≥1700 | ≥1700 | ≥1700 |
| 重烧线变化率% (1600℃×3h) Change rate of reburning line |
±0.2 | ±0.2 | ±0.2 | ±0.2 | ±0.2 |
| 应用 Application |
高铬砖主要用于煤化工、化工工业窑炉、无碱玻璃纤维、垃 圾焚烧炉等窑炉的关键部位；铬刚玉砖主要用于炭黑炉、铜 冶炼炉的内衬，玻璃窑炉的熔池，轧钢加热炉滑道、出钢平台 。 High chromium bricks are mainly used in key parts of coal chemical ndustry,chemical industry furnaces,alkali-free glass fiber,waste incinerator,etc.,melting pool of glass furnace,slide way of rolling heating furnace,tapping platform. |
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