耐火水泥又称高温水泥。它由优质铝矾土和优质石灰按一定比例加入适量配料制成。耐火水泥的耐火度不低于 1580℃（2876℉）。根据成分的不同，可分为铝酸盐耐火水泥、低钙铝酸盐耐火水泥、钙镁铝酸盐水泥和白云石耐火水泥。
Aluminate cement CA50 series products are based on natural high-quality bauxite and limestone as raw materials, calcined at high temperature to form a clinker with one calcium aluminate (CA) and one calcium dialuminate (CA2) as the main mineral phase, and then ground to the best particle size distribution of water-hard cementitious material.
CA70 cement produced by industrial alumina and high purity burnt lime from advanced rotary kiln sintering process and high fine grinding system with reasonable design of cement phase and accurate control of sintering process and particle size distribution, calcium aluminate cement has good workability,excellent performance at high temperature and maximum consistency.
CA80 氧化铝含量适合制备各种传统和低水泥矿床，制备的铸造材料具有较高的软化温度、优异的抗渣性和机械抗冲击性，使用温度可达 1800 ℃。产品中铁和硅等杂质含量极低，具有良好的抗侵蚀性。
| 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 | / | / | / | / | / | / | ||
| 伊塔姆 | CA40 | CA41 | |||
|---|---|---|---|---|---|
| - | 标准 | 典型范围 | 标准 | 典型范围 | |
| 化学成分（%） | |||||
| Al2O3 | 37.0-41.0 | >37.0 | 43.0-48.0 | >43.0 | |
| CaO | 36.0-40.0 | <41.0 | 35.0-38.0 | <40.0 | |
| SiO2 | - | <6.0 | - | <7.0 | |
| 铁2O3 | 13.0-17.0 | <18.0 | 4.0-9.0 | <10.0 | |
| 氧化镁 | - | <1.5 | - | <1.5 | |
| TiO2 | - | <3.0 | - | <3.0 | |
| R2O | - | <0.5 | - | <0.5 | |
| S | - | <0.1 | - | <0.1 | |
| CL- | - | <0.06 | - | <0.06 | |
| Finess | |||||
| +45μm(%) | - | <15.0 | - | <15.0 | |
| S（平方米/千克） | 350-400 | >300 | 350-400 | >300 | |
| 设置时间（分钟） | |||||
| IS | 60-130 | >45 | 100-180 | >90 | |
| FS | 100-180 | <240 | 120-200 | <300 | |
| 抗弯强度（兆帕） | |||||
| 6h | - | >4.0 | - | >4.0 | |
| 1d | - | >5.0 | - | >6.0 | |
| 3d | - | >6.0 | - | >6.5 | |
| 压缩强度（兆帕） | |||||
| 6h | - | >30 | - | - | |
| 1d | 50-55 | >50 | 55-60 | >55 | |
| 3d | 55-65 | >55 | 60-70 | >60 | |
| 施工性（15 分钟后摊铺）（%） | - | >30 | - | >50 | |
| 折射率 (℃) | - | 1270℃ | - | 1310℃ | |
| 体积密度（千克/立方米） | - | 900-1000 | - | 900-1000 | |
| 比重（克/立方厘米） | - | 2.9-3.1 | - | 2.9-3.1 | |
Click to Know More About: CA40/41 水泥
1. High refractoriness 2. Excellent stability 3. Good chemical resistance 4. High temperature resistance, not easy to deform 5. Chemical corrosion resistance
1.Metallurgical industry: lining and fixing of blast furnaces, converters, electric furnaces, continuous casting machine crystallizers 2.Electric power industry: fixing and lining of boilers, coal-fired and gas-fired thermal power plant furnaces, tailings ponds 3.Cement and building materials industry: rotary kilns, coolers, preheaters, kiln tails, etc. 4.Petroleum refining and chemical industry: hydrogenation reactors, distillation towers, steam pipelines, flue gas purifiers, etc.
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。