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How to Extend the Service Life of AZS Refractory Bricks: Microstructure Advantages and Maintenance Techniques of Fused AZS Bricks under High-Temperature Conditions

2025-11-16
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The fused AZS brick TY - AZS36, with high - purity Al₂O₃ (≥49%) and ZrO₂ (≥35.5%) components and a dense microstructure, demonstrates excellent corrosion resistance and thermal shock stability under the high - temperature conditions of glass melting furnaces. This article delves into how its low apparent porosity (≤1%) reduces gas penetration and enhances the corrosion resistance rate (≤1.3mm/24h). Combined with daily maintenance techniques such as temperature gradient control and regular thickness measurement, it provides practical guidelines for operators to extend the service life of refractory bricks, helping to reduce furnace shutdown costs and optimize furnace life management.
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Are you troubled by the frequent failure of refractory materials in key parts of your glass melting furnace, such as the side walls, throats, and bottom bricks? If so, you're not alone. The high - temperature and corrosive environment in glass melting furnaces poses significant challenges to the longevity of refractory materials. However, the fused AZS brick TY - AZS36 offers a promising solution. In this article, we'll explore how this product can help you overcome these challenges and extend the service life of your refractory bricks.

Chemical Composition and Microstructure: The Secret to High - Temperature Performance

The fused AZS brick TY - AZS36 has a high - purity chemical composition, with Al₂O₃ (≥49%) and ZrO₂ (≥35.5%). These high - quality components, combined with its dense microstructure, endow the brick with excellent corrosion resistance and thermal shock stability in the high - temperature environment of glass melting furnaces. The relationship between its chemical composition and microstructure significantly affects its high - temperature performance.

Data Reference: The volume density of TY - AZS36 is ≥3.85g/cm³, the cold - crushing strength is ≥300MPa, and the glass - phase precipitation temperature is ≥1400℃. These core indicators ensure its stability and durability in high - temperature conditions.

Let's take a closer look at how the low apparent porosity (≤1%) of TY - AZS36 reduces gas penetration and enhances its corrosion resistance. The lower the apparent porosity, the less likely it is for corrosive gases to penetrate the brick, thus improving its corrosion resistance rate (≤1.3mm/24h). The following is a comparison chart of the apparent porosity of different refractory bricks:

Comparison chart of apparent porosity of different refractory bricks

Core Indicators: What They Mean in Practice

Each core indicator of TY - AZS36 has a practical significance for its application in glass melting furnaces. The high volume density means a more compact structure, which is crucial for withstanding the mechanical stress in the furnace. The high cold - crushing strength ensures that the brick can maintain its integrity under high pressure. And the high glass - phase precipitation temperature means that the brick can maintain its performance even at extremely high temperatures.

Core Indicator Value Practical Significance
Volume Density ≥3.85g/cm³ More compact structure, better resistance to mechanical stress
Cold - Crushing Strength ≥300MPa Maintain integrity under high pressure
Glass - Phase Precipitation Temperature ≥1400℃ Maintain performance at extremely high temperatures

Maintenance Strategies: Prolonging the Service Life

Besides the excellent performance of the product itself, proper maintenance is also crucial for extending the service life of refractory bricks. Here are some practical maintenance strategies:

Temperature Control Management

Controlling the temperature gradient in the furnace is essential. Sudden temperature changes can cause thermal shock to the refractory bricks, leading to cracks and damage. By strictly controlling the temperature, you can reduce the risk of such damage.

Marking Abnormal Points

Regularly inspect the furnace and mark any abnormal points, such as areas with abnormal temperature or signs of corrosion. This way, you can take timely measures to prevent further damage.

Regular Inspection Mechanism

Establish a regular inspection schedule, including thickness measurement of the refractory bricks. This allows you to detect any signs of wear and tear early and replace the bricks before they fail completely.

ISO Certification and Green Manufacturing: Added Value

The TY - AZS36 is produced in line with ISO certification standards, which means it meets international quality and safety requirements. Moreover, it also conforms to the trend of green manufacturing, which not only shows its environmental - friendliness but also enhances its value in the industry.

You may have encountered various problems with the lining of your furnace. Have you ever wondered how to solve them effectively? Share your experiences in the comments below. We'd love to hear from you!

Choosing TY - AZS36 is not just about buying a refractory brick; it's about investing in the long - term performance and cost - effectiveness of your glass melting furnace. With its excellent performance and practical maintenance strategies, it can help you reduce the cost of furnace shutdowns and optimize the management of your furnace's service life. Don't miss out on this opportunity to enhance your furnace's performance. Click here to learn more about TY - AZS36

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