Aluminum Liquid Degassing Box with 150 – 500 kg/min Handling Capacity and ≥65% Degassing Efficiency for Molten Aluminum Purification

      WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD. presents a high-performance Aluminum Liquid Degassing Box designed for the efficient purification of molten aluminum. This fixed degassing box is used together with a mobile rotary degassing unit and an overhead crane-mounted heating cover to achieve online hydrogen and inclusion removal. When degassing is not required, the heating cover is hoisted by a crane to cover the box, providing constant temperature insulation, preventing oxidation and secondary hydrogen absorption. This equipment is ideal for continuous production in aluminum alloy casting, including pure aluminum, Al-Si, Al-Mg, and Al-Mn alloys. Operating temperature ranges from 720℃ to 850℃. Key applications include hydrogen removal, non-metallic inclusion removal, and melt insulation to improve casting density and mechanical properties.

 Industry Challenges & Causes

• Problem: High Hydrogen Content. Excessive gas leads to pinholes and porosity in finished aluminum castings.

   

• Cause: Inefficient Degassing Methods. Standard treatments fail to reach the sub-0.12 mL/100g Al hydrogen threshold required for high-grade alloys.

• Problem: Temperature Loss & Oxidation. During production gaps, molten aluminum loses heat rapidly and absorbs secondary hydrogen.

   
• Cause: Lack of Surface Protection. Without active temperature compensation, the melt surface oxidizes and forms a crust, increasing metal loss.

 Our Solution

• Superior Degassing Efficiency: Achieves ≥65% degassing efficiency when paired with rotary units, ensuring high casting density and improved mechanical properties.

• Crane-Mounted Radiant Heating Cover: An 18kW electric heating system with PID control (500℃–850℃) provides reliable insulation, preventing oxidation and secondary absorption.

   

• High-Silicon Corrosion-Resistant Liner: The integrally sintered lining resists aluminum sticking and withstands temperatures ≥1100℃, with a service life exceeding 12 months.

• Energy-Saving Multi-Layer Insulation: ≥100 mm ceramic fiber insulation maintains an outer wall temperature rise of ≤50℃, optimizing energy use.

Technical Parameters Table

FAQ

• Q: How is the heating cover managed?

  A: The cover is designed for easy lifting by a gantry or overhead crane, allowing it to be placed when insulation is needed and removed for degassing.

• Q: What is the lifespan of the heating elements?

  A: The heating elements typically last ≥6 months, while the robust liner lasts ≥12 months, ensuring low maintenance frequency.