耐火材料用空心氧化铝球
产品描述：
气泡氧化铝由高Al2O3 纯度的电熔氧化铝制成。熔化后的吹制过程得到空心气泡形状。气泡氧化铝的主要晶体结构是 α-Al2O3。通过良好的控制系统，我们的球成型率高达90%。是一种耐高温、节能的轻质耐火材料。在各种环境下使用都非常稳定。尤其适用于1800℃高温窑炉。
技术数据表：
典型的化学成分 | |
项目 | 典型数据（混球0.2-5mm） |
氧化铝 | ≥99% |
三氧化二铁 | ≤0.15% |
二氧化硅 | ≤0.3% |
Na2O | ≤0.5% |
氧化镁 | ≤0.1% |
氧化钾 | ≤0.1% |
氧化钙 | ≤0.1% |
典型物理特性 | |
堆积密度 | 0.5-1克/立方厘米 |
莫氏硬度 | 9 |
耐火度 | 1800 ℃ |
外貌 | 白色空心球 |
可用尺寸 | |
| 混合尺码 | 0.2-5mm |
| 分离尺寸 | 0.1-0.2mm 0.2-0.5mm 0.2-1mm 1-0.5mm 1-2mm 2-3mm 3-4mm 4-5mm,etc. |
Bulk Density | |
Size | Bulk Density(g/cm3) |
5-4mm | 0.45 |
4-3mm | 0.55 |
3-2mm | 0.65 |
2-1mm | 0.75 |
0-2mm | 0.70-0.80 |
1-0.5mm | 0.85 |
3-0.2mm | 0.85 |
0.5-0.2mm | 0.95 |
0.2-0.1mm | 0.95 |
Product Image:
Bubble Alumina Properties:
Bubble alumina is a kind of hollow alumina bull & hollow alumina ball shape. Related refractory product made from it gets a high-temperature resistance, high thermal stability. It also gets high mechanical strength which is several times that of ordinary lightweight refractory products, and the bulk density is only half of that of other corundum products.
Bubble alumina can be used as high-temperature thermal insulation fillers, high-temperature refractory concrete lightweight aggregates, high refractory castables, etc. Bull alumina insulation fire brick made from hollow alumina can be used for high-temperature energy-saving (Bubble alumina content >30%) kiln furniture including inverted flame furnaces, shuttle furnaces, molybdenum wire furnaces, tungsten bar furnaces, induction furnaces, nitriding furnaces, etc.
Adopting bubble alumina, always get excellent performance such as reduce the weight of the furnace body, rebuild kiln structure, save materials consumption and save energy. Bubble alumina has been widely used in high-temperature furnaces such as petrochemical industrial gasifiers, carbon black industrial reaction furnaces, metallurgical induction furnaces, etc., All applications above with bubble alumina are turned to be successful from users.
Also, the alumina hollow ball can be used as a filling material for the diamond grinding wheel to play a role in making pores. The grinding wheel adding bubble alumina can quickly take away the heat generated by the grinding work due to the existence of pores during the grinding process. It can improve the sharpness, and reduce burning on the surface of the workpiece.
Application:
1、高温和超高温绝缘填料
2、金刚石砂轮造孔材料，避免砂轮烧损
3、高耐火混凝土轻骨料
4、高耐火浇注料
5、耐火砖&保温耐火砖
6.窑前料、高温炉衬料
包裹：
25公斤/袋，1吨/大袋
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