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Molten Aluminum In-line Degassing Unit: Launder Purification for High-Capacity Aluminum Casting Lines to Mitigate Melt Variation in Continuous Casting

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Molten Aluminum In-line Degassing Unit: Launder Purification for High-Capacity Aluminum Casting Lines to Mitigate Melt Variation in Continuous Casting

Brand Name:	Boqiang
MOQ:	1 set
Price:	USD 1,000
Packaging Details:	Standard export packaging (carbon box, pallet, film)

Detail Information

Product Description

Detail Information

Place of Origin:

China

Molten Aluminum Operating Temperature:

680‑770 ℃

Degassing Efficiency:

≥56%

Rotor Setup:

2 Composite Graphite Rotors, 0‑600rpm Variable‑frequency Speed Control

Molten Aluminum Throughput:

25‑35 T/h

Outlet Hydrogen (Inlet＜0.28mL/100g):

≤0.12 ML/100g

Inert Gas Requirement:

Purity≥99.996%, Dew Point＜‑69℃

Temperature Control Accuracy:

±2 ℃

Outlet Hydrogen (Inlet＞0.28mL/100g):

≤0.14 ML/100g

Supply Ability:

600 pieces/ year

Highlight:

Molten aluminum in-line degassing unit

Launder purification for aluminum casting lines

Continuous casting machine parts

Product Description

Melt Stability Challenges in High-Capacity Aluminum Casting Lines

High-capacity continuous aluminum casting lines maintain a steady, high throughput of molten metal. However, melt conditions tend to fluctuate with raw material batches and furnace operating status. After furnace refining, molten aluminum contacts air during long-distance launder transfer, leading to variable hydrogen and inclusion levels. This melt inconsistency causes uneven quality across cast batches and complicates yield control. Large-scale melting plants cannot offset melt changes in launders through frequent furnace adjustments, making an in-line purification unit essential before casting.

Purification Mechanism of the In-line Degassing Unit

Twin-Rotor Inert Gas Dispersion Refining Structure

Installed on the launder between the holding furnace and the mold, twin rotors rotate at constant speed to shear argon or nitrogen into micro bubbles that are evenly distributed throughout the molten aluminum. Dissolved hydrogen diffuses into the bubbles and escapes during flotation. Suspended solid inclusions are captured by the bubbles, enabling simultaneous hydrogen and slag removal. The unit supports long-hour continuous operation without interrupting high-volume casting.

Key Technical Specifications

Item	Specification	Source
Molten aluminum throughput	500–6000 kg/h	Product PDF P3
Rotor material	High-purity graphite with anti-oxidation coating	Product PDF P5
Operating temperature	680–760 ℃	Product PDF P4
Purge gas	Argon / Nitrogen	Product PDF P6
Hydrogen removal performance	Final hydrogen content down to 0.12 ml/100g Al	Product PDF P7

Application & Maintenance Notes

Designed for high-output aluminum billet and slab casting lines, as well as extrusion billet casting processes.
Insulated cabinet limits melt temperature drop.
Compact form fits existing launder layouts and avoids extensive line reconstruction.
Graphite rotors are consumable parts to be replaced periodically based on continuous runtime and impurity load.
The gas supply control system dynamically adjusts gas parameters according to real-time metal flow to sustain stable melt indicators.

Summary

Built for high-capacity continuous aluminum casting lines, this in-line degassing unit purifies molten aluminum in launders and reduces melt fluctuations caused by raw materials and metal transfer, ensuring consistent quality across cast batches.

Tags:

Aluminum Melting Furnace

Homogenizing Furnace

Billet Casting Machine

Billet Cutting Machine

Regenerative Burner System

Continuous Casting Machine Parts

Aluminum Melting Furnace

Homogenizing Furnace

Billet Casting Machine

Billet Cutting Machine

Regenerative Burner System

Continuous Casting Machine Parts

products details

Aluminum Melting Furnace

Homogenizing Furnace

Billet Casting Machine

Billet Cutting Machine

Regenerative Burner System

Continuous Casting Machine Parts

Molten Aluminum In-line Degassing Unit: Launder Purification for High-Capacity Aluminum Casting Lines to Mitigate Melt Variation in Continuous Casting

Molten aluminum in-line degassing unit

Launder purification for aluminum casting lines

Continuous casting machine parts

Slip Casting Mold

Wire Feeder

Cooling Crystallizer