Background introduction

Al2O3-C refractory ramming material is an advanced material widely used in high-temperature industries such as steel and chemicals. Its antioxidant properties directly affect the service life and effect of the material. Improving the oxidation resistance of Al2O3-C refractory ramming materials is of great significance to industrial production.

Material structure optimization

Structural optimization is one of the first methods to improve antioxidant properties. By analyzing the microstructure and pore distribution of the material, the key factors affecting the antioxidant performance can be identified. Research shows that a dense material structure helps reduce the penetration of oxygen, thereby improving anti-oxidation properties.

Additive selection

Choosing the right additives can also significantly improve antioxidant properties. Studies have shown that the addition of certain metal oxides such as zirconium and titanium can form a protective oxide layer and effectively improve the antioxidant performance of Al2O3-C refractory ramming materials.

Data comparison

The following is a comparison of data on the impact of different additives on antioxidant properties:

• No additives: oxidation loss rate up to 30%
• Adding zirconium oxide: oxidation loss rate reduced to 10%
• Adding titanium oxide: oxidation loss rate reduced to 12%

process improvement

In addition to the optimization of the material itself, process improvement is also crucial. Optimizing the sintering process and controlling the sintering temperature and atmosphere can further improve the oxidation resistance of the material. Research shows that the oxidation resistance of materials sintered in a nitrogen environment is significantly better than that of materials sintered in an air environment.

Case study

The following is the actual effect of applying improved Al2O3-C refractory ramming material in a steel plant:

• Service life before improvement: 3 months
• Improved service life: 6 months
• Reduce maintenance costs: 20% reduction

in conclusion

Improving the oxidation resistance of Al2O3-C refractory ramming materials requires coordinated improvements in many aspects, including material structure optimization, additive selection and process improvement. Through systematic research and practical application verification, the anti-oxidation properties of materials can be significantly improved, their service life can be extended, and the stable operation of high-temperature industries can be guaranteed.