公司研制的水泥窑用系列耐火材料具有耐碱侵蚀、耐剥落、耐冲刷、使用寿命长等特点，可广泛应用于水泥回转窑烧成带、过渡带、卸料口。
Refractory for cement kiln developed by this factory has such advantages as alkalpiroof ,antipelling,abrasion-resistance and long service life ,which can be used as burnt belt ,intermediate belt and the mouth of unloading for cement rotary kiln .
| 指标/牌号 | 普通耐酸砖 | 高强耐酸砖 | 拱顶耐酸砖 |
| HNJ-30 | HNJ-30G | HNJ-30D |
| Al2O3 % | 25-30 | 25-30 | 30-35 |
| SiO2 % | 60-70 | 60-70 | |
| Fe2O3 % | ≤2 | | |
| 显气孔率 % | ≤25 | | |
| 常温耐压 Mpa | ≥30 | ≥60 | ≥30 |
| 体积密度g/cm3 | ≥2.1 | ≥2.2 | ≥2.2 |
| 重烧线变化 % | +0.1--1.0 | | |
| 耐火度℃ | ≥1650 | ≥1650 | ≥1700 |
| 荷重软化温度℃ | ≥1250 | ≥1200 | ≥1280 |
| 热震稳定性1100℃水冷.次 | ≥10 | | |
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