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        产品详细介绍 |  
| 
 项 目 \ 牌 号  | 
 烧 成 砖  | 
 不 烧 砖  |  
| 
 DL-80  | 
 DL-75  | 
 | 
 | 
 DL85P  | 
 BDL-80  | 
 BDL-75  | 
 BDL65  | 
 DL80P-B  |  
| Al2O3 % | 
 ≥80
   | 
 ≥75
   | 
 ≥65
   | 
 ≥75
   | 
 ≥80
   | 
 ≥80
   | 
 ≥75
   | 
 ≥65
   | 
 ≥70
   |  
| Fe2O3 % | 
 | 
 | 
 | 
 ≤1.7  | 
 ≤1.7  | 
 | 
 | 
 | 
 ≤1.7  |  
| 耐火度 ℃  | 
 | 
 | 
 | 
 | 
 | 
 ≥1780  | 
 ≥1780  | 
 ≥1770  | 
 |  
荷重软化温度KD ℃
  | 
 ≥1530  | 
 ≥1520  | 
 ≥1520  | 
 | 
 | 
 ≥1530  | 
 ≥1520  | 
 T2≥1470  | 
 |  
(1500 ℃×2h)重烧线变化率 %
  | 
 0.2~-0.4  | 
 0.2~-0.4  | 
 0.2~-0.4  | 
 | 
 | 
 | 
 | 
 | 
 |  
显气孔率 %
  | 
炉顶砖 | 
 ≤19  | 
 ≤19  | 
 ≤19  | 
 ≤18  | 
 ≤19  | 
 ≤18  | 
 ≤18  | 
 ≤19  | 
 ≤19  |  
| 拱角砖 | 
 ≤21  | 
 ≤21  | 
 | 
 ≤20  | 
 ≤20  | 
 |  
| 常温耐压强度 Mpa | 
 ≥75  | 
 ≥65  | 
 ≥58.8  | 
 ≥50  | 
 ≥80  | 
 ≥60  | 
 ≥55  | 
 ≥30  | 
 ≥50  |  
| 热震稳定性,次(1100℃ 水冷)  | 
 | 
 | 
 | 
 | 
 | 
 ≥8  |  
| 用 途  | 
炼钢电炉炉盖 |    |    |    | 
                                 
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