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高荷软砖
High RUL bricks |
该产品具有荷重软化温度和强度高，热震稳定性好和耐磨性优越的特点，主要用于大中型回转窑高温部位，代替镁铬砖并适用于冶金行业电炉、转炉等主要部位。
These products high RUL good thermal shock resistance,high strength and abrasion resistance, Their main applications are as followings;high temperature zone of large and medium size rotary kilns,substituting magnesite chrome bricks in main part of electric furnace and converter for metallurgical industry. |
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PH-75 |
PH-80 |
化学成份 Chemiacl composition,% |
Al2O3% |
≥75 |
≥80 |
Fe2O3% |
≤2.5 |
≤2.5 |
显气孔率 Apparent porosity,% |
≤20 |
≤18 |
体积密度 BD,g/cm3 |
2.65 |
2.7 |
耐压强度 CCS,Mpa |
≥70 |
≥80 |
| 荷重软化开始温度 RUL,℃ |
≥1550 |
≥1570 |
重烧线变化 Linear change on reheating（1550℃×3h）,% |
-0.8～+0.3 |
-0.8～+0.3 |
热震稳定性 (900℃水冷）Thermal shock Resistance cycles,≥ |
≥40 |
≥40 |
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蓝晶石高铝制品
Kyanite high alumina products
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冶金部下达的宝钢用热风炉砖H24 |
| Al2O3,% |
≥60 |
| 耐火度 Refractoriness,℃ |
≥1820 |
| 显气孔率 Apparent porosity,% |
≤24 |
| 耐压强度CCS,Mpa |
≥40 |
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腊石砖
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腊石砖 |
| 化学成份 |
Al2O3,% |
≤23 |
| Fe2O3,% |
≤1.0 |
| SiO2,% |
≥48 |
| 体积密度 BD,g/cm3 |
≥2.1 |
| 常温耐压强度 CCS,Mpa |
≥65 |
| 显气孔率 Apparent porosity,% |
≤22 |
| 荷重软化开始温度 RUL,℃ |
≥1400 |
| 耐火度 Refractoriness,℃ |
≥1600 |
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尖晶石钢包浇注料
性能 Properties |
指标 Specification |
Al2O3, % |
≥70 |
Mg0,% |
≥11 |
SiO2,% |
＜9 |
体积密度 BD,g/cm3
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110℃×24h |
≥2.9 |
1550℃×3h |
≥2.8 |
永久线变化 PLC,Mpa
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110℃×24h |
0～0.2 |
1550℃×3h |
+0.8～+1.7 |
抗折强度 MOR,Mpa
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110℃×24h |
≥9.0 |
1550℃×3h |
≥8.0 |
耐压强度 CCS,Mpa
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110℃×24h |
≥60 |
1550℃×3h |
≥80 |
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