| |
高铝砖
High alumina bricks 【GB2988-87】
 |
|
一级高铝 |
二级高铝 |
三级高铝 |
LZ-75 |
LZ-65 |
LZ-55 |
LZ-48 |
Al2O3,≥ % |
75 |
65 |
55 |
48 |
耐火度 Refractoriness,≥,℃ |
1790 |
1770 |
1750 |
0.2Mpa 荷重软化开始温度 RUL, T0.6,℃≥,℃ |
1520 |
1500 |
1470 |
1420 |
重烧线变化
Linear change on reheating,% |
1500℃×2h |
+0.1 |
-0.4 |
-0.4 |
1450℃×2h |
— |
— |
+0.1
-0.4 |
显气孔率 Apparent porosity,≤ % |
23 |
22 |
常温耐压强度 CCS,≥Mpa |
≥53.9 |
≥49.0 |
≥44 |
≥40 |
|
冶金行业电炉、各种高炉用炉顶砖（拱脚砖）
Roof&skew bricks used in metallurgical industry, electric furnace and blast furnace 【YB/T5107-93】
| |
DL-80 |
DL-75 |
DL-65 |
Al2O3,% |
≥80 |
≥75 |
≥65 |
耐火度 Refractorinese ,℃ |
≥1790 |
荷重软化温度 RUL,T0.6,℃ |
≥1550 |
≥1530 |
≥1520 |
重烧线变化 Linear change on reheating(1500℃×2h),% |
-0.3 ～ 0 |
-0.4 ～ 0 |
- |
显气孔率
Apparent porosity,%
|
炉顶砖 roofbrick |
≤19 |
≤22 |
拱脚砖 skew brick |
≤21 |
≤23 |
耐压强度 CCS,Mpa |
≥78.5 |
≥68.6 |
≥58.8 |
高铝不烧电炉顶砖
Pressurwe at normal temperature
 |
理化性能 Physical & chemical properties |
高铝不烧电炉顶砖
Pressure at normal temperature |
化学成份 %
Chemiacl composition |
Al2O3 |
≥80 |
Fe2O3 |
≤1.7 |
显气孔率 % Apparent porsity,% |
≤15 |
体积密度 BD,g/cm3 |
≥3.0 |
常温耐压强度, CCS
Mpa |
一般电炉顶砖
For general electric furnace |
≥80 |
超高功率电炉顶砖
For super power electric furnace |
≥100 |
耐火度 Fire-resistance, ℃ |
≥1790 |
0.2Mpa 荷重软化开始温度RUL,℃ |
≥1600 |
重烧线变化 % Linear change on reheating（1550 ℃×3h） |
-0.4 |
热震稳定性次数（1100℃水冷），次
Thermal shock resistance (1100℃ water quench),cycles |
≥15 |
|
钢包工作层用浇注料
The castables of the ladle working lining
刚玉尖晶石整体浇注料是以刚玉为主要原料，添加部份尖晶石或镁砂原料，以水泥或微粉为结合剂的不定型产品，使用中具有良好的整体性、抗侵蚀性及热震稳定性优的特点。
The corundum-spinel based castables is one integral casting refractory material of the ladle, using corundum as main material and incorporating certain spinel or magnesia materials, bound by the cement or micro-powder. This unshaped refractory
has good integrity,excellent corrosion resistance and thermal shock stability.
| 项目Item |
刚玉尖晶石浇注料
Corundum-
Spinel Castables |
铝镁浇注料
Al2O3-MgO
Castables |
刚玉自流料
Corundum-Spinel
Castables |
高铝浇注料
High Alumina
Castables |
体积密度Bulk
Density(g/cm3) |
110℃×24h |
3.15 |
3.10 |
3.00 |
3.10 |
2.80 |
2.60 |
耐压强度
Cold Crushing
Strength(MPa) |
110℃×24h |
≥55 |
≥55 |
≥75 |
≥38 |
≥45 |
≥38 |
| 1550℃×3h |
165 |
177 |
110 |
120 |
102 |
80.3 |
抗折强度
Modulus of
Rupture(MPa) |
110℃×24h |
9.5 |
9.0 |
7.0 |
7.5 |
6.6 |
- |
| 1550℃×3h |
19.4 |
21.0 |
7.5 |
12.5 |
8.5 |
- |
残余线膨胀Residual
Linear Change(%) |
1550℃×3h |
+0.12 |
+0.30 |
+0.50 |
+0.20 |
+0.10 |
+0.35 |
化学成份
Chemical
Composition(%) |
Al2O3 |
93.30 |
92.70 |
75.00 |
88.50 |
17.50 |
66.50 |
| MgO |
3.20 |
3.50 |
10.00 |
- |
- |
- |
| 使用部位 Application |
包壁
Lip of
the wall |
包底
Bottom |
包底
Bottom |
包底与包壁的缝隙
Between of ladle
bottom and the wall |
包嘴
Lip of the
ladle |
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