In aluminum alloy casting, hydrogen content and non-metallic inclusions directly affect the density and mechanical properties of the castings. WONDERY recently delivered a Fixed Aluminum Liquid Degassing Box equipped with a Crane-Mounted Heating Cover. The client's requirements focused on efficient online hydrogen removal while maintaining flexible thermal compensation to prevent temperature drops or secondary hydrogen absorption during non-degassing phases.
As a core purification station between the furnace and the casting machine, the degassing box features targeted optimizations:
Operating Conditions: Designed for molten aluminum temperatures of 720 ℃ – 850 ℃, suitable for pure aluminum, Al-Si, Al-Mg, and other alloys.
Mode Switching: Used in conjunction with a mobile rotary degasser. During idle periods, the heating cover is hoisted by a gantry crane to switch the box into a constant-temperature preservation mode.
To maintain constant melt temperature, the heating cover integrates a high-performance system:
Heating Elements: High-resistance alloy wires arranged in a corrugated pattern ensure uniform radiant heating across the melt surface.
Insulation Performance: The cover interior utilizes Shandong Luyang aluminosilicate fiber modules, pre-compressed to minimize heat loss and prevent surface oxidation.
Control Accuracy: Equipped with a PID intelligent controller to monitor the cover's thermal field, minimizing temperature fluctuations during holding periods.
To ensure the longevity of the refractory lining, WONDERY implemented a mandatory oven-drying protocol:
Dehydration: Room temperature to 300 ℃ (2-hour hold) to remove all moisture.
Stress Relief: 300 ℃ to 500 ℃ (2-hour hold) to release thermal stress in the refractory.
Operating Readiness: Final ramp to 750 ℃ (2-hour hold), with the heating rate strictly kept at ≤50 ℃/h to prevent cracking.
Safety Factor: Lifting lugs are designed to bear ≥1.5 times the weight of the cover, ensuring absolute safety during crane operations.
Electrical Safety: System insulation resistance is ≥1 MΩ, with reliable grounding and limit switches to prevent accidental collisions during hoisting.
System Components: Fixed degassing box, crane-mounted heating cover, and intelligent electrical control cabinet.
Material Standards: High-grade refractory materials combined with stainless steel framing for superior resistance to molten aluminum erosion.
Operational Standards: Includes detailed safety protocols, such as mandatory tool preheating and protective gear requirements to prevent molten metal splashes.
In aluminum alloy casting, hydrogen content and non-metallic inclusions directly affect the density and mechanical properties of the castings. WONDERY recently delivered a Fixed Aluminum Liquid Degassing Box equipped with a Crane-Mounted Heating Cover. The client's requirements focused on efficient online hydrogen removal while maintaining flexible thermal compensation to prevent temperature drops or secondary hydrogen absorption during non-degassing phases.
As a core purification station between the furnace and the casting machine, the degassing box features targeted optimizations:
Operating Conditions: Designed for molten aluminum temperatures of 720 ℃ – 850 ℃, suitable for pure aluminum, Al-Si, Al-Mg, and other alloys.
Mode Switching: Used in conjunction with a mobile rotary degasser. During idle periods, the heating cover is hoisted by a gantry crane to switch the box into a constant-temperature preservation mode.
To maintain constant melt temperature, the heating cover integrates a high-performance system:
Heating Elements: High-resistance alloy wires arranged in a corrugated pattern ensure uniform radiant heating across the melt surface.
Insulation Performance: The cover interior utilizes Shandong Luyang aluminosilicate fiber modules, pre-compressed to minimize heat loss and prevent surface oxidation.
Control Accuracy: Equipped with a PID intelligent controller to monitor the cover's thermal field, minimizing temperature fluctuations during holding periods.
To ensure the longevity of the refractory lining, WONDERY implemented a mandatory oven-drying protocol:
Dehydration: Room temperature to 300 ℃ (2-hour hold) to remove all moisture.
Stress Relief: 300 ℃ to 500 ℃ (2-hour hold) to release thermal stress in the refractory.
Operating Readiness: Final ramp to 750 ℃ (2-hour hold), with the heating rate strictly kept at ≤50 ℃/h to prevent cracking.
Safety Factor: Lifting lugs are designed to bear ≥1.5 times the weight of the cover, ensuring absolute safety during crane operations.
Electrical Safety: System insulation resistance is ≥1 MΩ, with reliable grounding and limit switches to prevent accidental collisions during hoisting.
System Components: Fixed degassing box, crane-mounted heating cover, and intelligent electrical control cabinet.
Material Standards: High-grade refractory materials combined with stainless steel framing for superior resistance to molten aluminum erosion.
Operational Standards: Includes detailed safety protocols, such as mandatory tool preheating and protective gear requirements to prevent molten metal splashes.
