Core Technical Features of Fused AZS Cast Blocks

You might be wondering what makes fused AZS cast blocks so special in the glass melting furnace industry. Let's start by understanding their material composition and the formation mechanism of their microstructure.

Material Composition and Microstructure Formation Mechanism

The proportion of Al2O3 - ZrO2 - SiO2 in fused AZS cast blocks plays a crucial role. The electric melting process significantly affects the density of the material. A well - controlled electric melting process can increase the density of the AZS blocks by up to 95%, which is essential for their performance. This high density is mainly due to the precise control of the melting temperature and time during the electric melting process. For example, a melting temperature of around 2000°C for a specific duration can lead to the formation of a dense microstructure.

Scientific Principles of Thermal Shock, Corrosion, and Wear Resistance in High - Temperature Environments

In high - temperature environments, fused AZS cast blocks show excellent thermal shock, corrosion, and wear resistance. The scientific principle behind this lies in their unique crystal structure. The combination of different oxides forms a stable crystal lattice that can withstand high - temperature fluctuations. For instance, the ZrO2 component can undergo a phase transformation at high temperatures, which helps to absorb thermal stress and prevent crack propagation. In terms of corrosion resistance, the dense microstructure acts as a barrier, reducing the contact between the corrosive substances in the glass melt and the block material. This can reduce the corrosion rate by up to 80% compared to ordinary materials.

Actual Application Effects in Different Parts of the Glass Melting Furnace

Fused AZS cast blocks have different application effects in various parts of the glass melting furnace, such as the charging channel, C - type bricks, and the tank bottom. In the charging channel, the high wear resistance of AZS blocks can reduce the wear caused by the continuous flow of glass raw materials. In the C - type bricks, their excellent thermal shock resistance can prevent cracking due to temperature changes. At the tank bottom, the corrosion resistance helps to maintain the integrity of the furnace structure. According to industry data, using AZS blocks in these parts can increase the service life of the corresponding components by 2 - 3 times.

Installation and Maintenance of Fused AZS Cast Blocks

Common Mistakes and Standardized Operation Suggestions in the Installation Process

During the installation of fused AZS cast blocks, there are some common mistakes. For example, improper preheating can lead to thermal stress and cracking of the blocks. The preheating temperature should be gradually increased at a rate of about 50°C per hour until reaching the operating temperature. In terms of masonry accuracy, the deviation of the block position should be controlled within ± 1mm. For joint treatment, a special refractory mortar should be used to ensure a tight seal. By following these standardized operations, you can avoid many installation - related problems and ensure the normal operation of the furnace.

Key Points of Daily Inspection and Regular Maintenance

Daily inspection and regular maintenance are crucial for the long - term performance of fused AZS cast blocks. Temperature monitoring is an important part. The temperature of the blocks should be kept within a certain range, and any abnormal temperature rise should be investigated immediately. Surface damage identification is also necessary. Small cracks or surface wear should be detected early and repaired in time. As for the replacement cycle, it is generally recommended to replace the blocks every 3 - 5 years, depending on the actual operating conditions of the furnace.

Comparison of Industry Benchmark Cases

Let's look at some industry benchmark cases. Before using fused AZS cast blocks, the average service life of a glass melting furnace was about 5 years, and the annual failure rate was about 20%. After using AZS blocks, the service life of the furnace increased to 10 - 15 years, and the annual failure rate decreased to less than 5%. These data clearly show the significant advantages of using fused AZS cast blocks.

In conclusion, by understanding the core technical features, installation, and maintenance of fused AZS cast blocks, you can make your glass melting furnace more durable and more worry - free. Reduce downtime losses and start with the correct installation now! If you have any questions, please click the 'Common Questions Q&A' below.