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高铝砖
High alumina bricks
项目 |
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
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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 |
粘土砖
Fireclay bricks (YB/T5106-93)
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NZ-45 |
NZ-40 |
Al2O3,%,≥ |
45 |
40 |
耐火度 Refractoriness,℃ |
1750 |
1730 |
荷重软化温度 RUL,T0.6,℃ |
1400 |
1350 |
重烧线变化 Linear change on reheating (1400 ℃× 2h),% |
-0.4 ～ +0.1 |
-0.5 ～ +0.1 |
显气孔率 Apparent porosity,% |
22 |
24 |
耐压强度 CCS,Mpa |
30 |
25 |
热震稳定性 Thermal shock resistance |
良好 Excellent |
低气孔率粘土砖
Low porosity fireclay bricks (JC/T638-1996)
该产品具有组织结构致密、显气孔率低，耐高温、耐侵蚀能力强等特点。
These products have very compact structure , low apparent porosity , high refractoriness , and excellent corrosion resistance.
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DN-1 |
DN-2 |
显气孔率 Apparent porosity,% |
16 |
20 |
体积密度BD,g/cm3 |
≥2.37 |
≥2.30 |
耐压强度 CCS,Mpa |
≥68 |
≥58.8 |
耐火度 Refractoriness,℃ |
≥1730 |
≥1730 |
荷重软化温度 RUL,T0.6,℃ |
≥1500 |
≥1470 |
重烧线变化 Linear change on reheating (1400 ℃× 2h),% |
-0.5 |
-0.5 |
化学成份 Chemical composition % |
Al2O3 |
55 |
50 |
Fe2O3 |
＜1.5 |
＜2.0 |
SiO2 |
35 |
45 |
耐酸砖
Acid resistant brick
性能 Properties |
指标 Specification |
化学成份 Chemical composition % |
Al2O3 |
25 |
SiO2 |
65 |
体积密度 BD,g/cm3 |
2.1 |
耐火度 Refractoriness, |
1550 |
耐压强度 CCS , MPa |
25-30 |
耐酸性 Acid resistance,% |
98 |
应用 Applications |
主要适用于电厂烟囱和窑炉耐酸部位
It is suit able for electric power plant's funnel and the acid resistant part of kiln's |
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