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|
 产品详细介绍 |
|
项 目 \ 牌 号 |
Burned bricks烧 成 砖 |
不 烧 砖Unburned Bricks |
|
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 | | | |
