High alumina cement (formerly known as bauxite cement) is a hydraulic cementitious material with aluminate as the main mineral component, which is prepared by bauxite and lime in a certain proportion, calcined and ground, also known as aluminate cement.
| 项目/等级 | CA50 | CA70 | CA80 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A600 | A700 | A900 | CA70 | CA70W | CA70S | CA71 | CA80 | CA80S | |||
| 化学成分 | ω (SiO2) ≤/% | 7.8 | 7.5 | 5.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| ω（Al2O3)/% | 50.0 | 51.0 | 53.5 | 68.5-70.5 | 68.5-70.5 | 68.5-70.5 | 69.5-71.5 | 78.0-81.0 | 78.0-81.0 | ||
| ω（铁2O3) ≤/% | 2.5 | 2.5 | 2.5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||
| ω（CaO）/% | / | / | / | 28.5-30.5 | 28.5-30.5 | 28.5-30.5 | 27.5-29.5 | 17.5-20.5 | 17.5-20.5 | ||
| ω（氧化镁） ≤/% | / | / | / | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | ||
| ω (R2O) ≤/% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | ||
| ω（S）≤/% | 0.1 | 0.1 | 0.1 | / | / | / | / | / | / | ||
| ω（Cl）≤/% | 0.1 | 0.1 | 0.1 | / | / | / | / | / | / | ||
| 细度 | d50/μm | / | / | / | 11-4 | 8-11 | 6-9 | 10-13 | 5-8 | 5-8 | |
| -45μm ≤/% | / | / | / | 8.0 | 5.0 | 5.0 | 8.0 | 5.0 | 5.0 | ||
| 设置时间 | 初始设置时间（分钟） | ≥45 | ≥60 | ≥90 | 120-180 | 30-90 | 180-240 | 150-210 | 30-90 | 90-150 | |
| 终凝时间（分钟） | ≤360 | ≤360 | ≤360 | 150-240 | 90-180 | 240-330 | 210-300 | 90-180 | 270-360 | ||
| 强度 (ISO) | 弯曲强度/Mpa | 24h | 6.0 | 6.5 | 8.0 | 7.5-10.0 | 8.0-10.5 | 8.0-10.5 | 8.5-11.0 | 5.0-7.5 | 5.0-7.5 |
| 72h | 7.0 | 7.5 | 10.0 | 10.0-12.0 | 10.5-12.5 | 10.5-12.5 | 11.0-12.5 | 6.0-8.5 | 6.0-8.5 | ||
| 压缩强度/Mpa | 24h | 45 | 55 | 72 | 40-50 | 45-55 | 45-55 | 50-60 | 30-40 | 30-40 | |
| 72h | 55 | 65 | 82 | 45-55 | 50-60 | 50-60 | 55-65 | 40-50 | 40-50 | ||
| 325M ≤/% | 15 | 12 | 8 | / | / | / | / | / | / | ||
| 比表面积 ≥/ (㎡/kg) | 300 | 320 | 350 | / | / | / | / | / | / | ||
In addition, we also supply: CA40/41 水泥
1.Large Heat of Hydration
2.Strong Resistance to Sulfate Erosion
3.Good High Temperature Resistance
4.Early Strength Characteristics
1. Flues, kilns, heat treatment furnaces and other building parts 2. Blast furnaces, converters, electric furnaces, etc., can be used as lining materials 3. Lining and protection of oil refining equipment, chemical furnaces, reactors 4. Maintenance and protection of high-temperature equipment such as electric furnaces, boilers, chimneys 5. Lining and protective layer of glass melting furnaces 6. Maintenance and protection of ladles, steel ladles, steelmaking furnaces, and continuous casting equipment.
整个交付过程都会受到跟踪，凯锐的专家团队会以最专业的态度解决具体的项目需求。如果客户的项目需要，科锐的专家团队将前往客户所在国提供面对面的技术支持。
除中国大陆外，科瑞耐火材料公司的产品已出口到世界五大洲的 50 多个国家和地区，包括亚洲、欧洲、美洲、非洲和大洋洲。我们得到了世界各地客户的认可和好评，并不断收到客户的回头订单和推荐。