Understanding Converter Repair Materials

Converter repair materials are essential for maintaining the structural integrity of converter linings. These materials are primarily composed of magnesia sand, binders, plasticizers, and a small amount of water. The effectiveness of repair techniques plays a critical role in minimizing downtime and enhancing productivity in manufacturing processes.

Application Techniques: Spraying Methods

Spray repair technology is widely employed in the repair of local damage areas in converter linings, especially around the tapping hole and slag line. Various methods such as dry spraying, half-dry spraying, or flame spraying are utilized to apply the refractory material directly onto the lined surface.

Key Characteristics of Repair Materials

Quality repair materials must possess high-temperature resistance, strong adhesion, minimal material fallout, and good sintering characteristics with hot lining surfaces. Particularly, half-dry spray materials effectively bond and cure quickly when mixed with sufficient moisture, evaluated by their adhesion rate and the number of applications.

Flame Spraying for Enhanced Durability

In situations where moisture is unavailable, flame spraying offers excellent adhesive qualities by incorporating combustible substances and gases. This method can achieve extended service life for lining materials.

Innovative Solutions from Rongsheng Company

Rongsheng Company has developed two types of large-scale hot repair materials:

• Electric Fusion Magnesia: Utilizing electric fusion magnesia and magnesia-calcium as primary ingredients, this composite carbon and ceramic joining method extends service life to 50 cycles.
• Eco-Friendly Quick-Firing Compound: This environmentally friendly material features a short sintering time, is pollution-free, and facilitates easy application suitable for efficient environmental repairs.

In conclusion, understanding the characteristics and application methods of converter repair materials is crucial for industrial operations. Proper maintenance and repair of converter linings ensure sustainable production levels, enhancing the profitability in manufacturing sectors.