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Product introduction of Acid resistant refractory castable
Acid resistant castable has a good ability to resist the erosion of all inorganic and organic acids except hydrofluoric acid and hot phosphoric acid. It is mainly used as anti-corrosion lining, and the higher use temperature is about 1200℃. Acid-resistant castables are flexible in use. They can be used as unshaped refractories, and various irregular prefabricated parts can also be made for use. Reasonable use can give play to the relatively large performance of acid-resistant castables.
Application of Acid resistant refractory castable
In metallurgy industry, petroleum, chemical industry, building materials, electric power and machinery industry and other industrial furnace widely used acid resistant castable, compared with other amorphous castable, acid resistant castable liquidity is better, so it is easier to construction and easier to achieve the ideal construction results, at the same time because of the higher binder and moisture, in the fire prevention is very prominent, Therefore, acid-resistant castable also has good high temperature resistance.
Advantages of Acid resistant refractory castable
Acid resistant castable has the characteristics of small volume density, fast solidification, high service temperature, compressive strength increases with the increase of temperature and acidity, small thermal conductivity, small linear expansion coefficient and so on.
Parameters of Acid resistant refractory castable
| Index | NS-1.6 | NS-1.8 | NS-2.0 |
| SiO2(%)≥ | 45 | 48 | 52 |
| Bulk Density (g/cm3)≥ | 1.6 | 1.8 | 2 |
| Cold Crushing Strength (MPa) ≥ | 5 | 8 | 10 |
| Acid resistance (%)≥ | 95 | 95 | 95 |
| Thermal Conductivity(350±25℃,W/m·k)≤ | 0.5 | 0.55 | 0.6 |
| Application (℃) | 800 | 900 | 1000 |