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In-line Degassing Unit for Aluminum Melting: Melt Purification for Recycled Aluminum Production to Reduce Alumina Inclusion Risks

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In-line Degassing Unit for Aluminum Melting: Melt Purification for Recycled Aluminum Production to Reduce Alumina Inclusion Risks

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:

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:

Outlet Hydrogen (Inlet＞0.28mL/100g):

≤0.14 ML/100g

Supply Ability:

600 pieces/ year

Highlight:

in-line degassing unit for aluminum melting

melt purification for recycled aluminum

continuous casting machine degassing parts

Product Description

Alumina Inclusion Challenges in Recycled Aluminum Melting

Recycled aluminum feedstock has variable composition. Oxide scale and oil contamination on scrap generate substantial alumina inclusions during melting. Furnace refining can only remove large slag particles. Micro-sized suspended inclusions flow into casting and trigger cracks and surface defects, raising scrap rates. Recycled aluminum plants prioritize continuous production and cannot frequently stop for secondary refining, calling for in-line purification equipment to treat molten aluminum in launders.

Purification Principle of the In-line Degassing Unit

Twin-Rotor Bubble Inclusion Capture Mechanism

Installed on the outlet launder of the holding furnace, twin rotors shear inert gas into abundant dispersed micro bubbles. When bubbles rise, dissolved hydrogen is removed, while suspended alumina particles in the melt are physically captured. Hydrogen and slag removal are completed simultaneously without interrupting continuous casting for long-run operation.

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

The unit fits recycled aluminum billet casting, recycled aluminum slab and recycled aluminum extrusion billet lines. The insulated refractory cabinet limits melt temperature loss, and the compact structure minimizes launder modification work.

Graphite rotors are consumables, requiring regular inspection and replacement depending on impurity levels of recycled scrap.
The gas regulation system adjusts gas parameters based on real-time aluminum flow to maintain consistent melt cleanliness.

Summary

Designed for recycled aluminum production, the in-line degassing unit removes hydrogen and fine alumina inclusions before casting, stabilizes melt quality and meets the continuous melting and casting requirements of recycled aluminum foundries.

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E-mail

carly.huang@foxmail.com

86 15813688760

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products details

Aluminum Melting Furnace

Homogenizing Furnace

Billet Casting Machine

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Continuous Casting Machine Parts

In-line Degassing Unit for Aluminum Melting: Melt Purification for Recycled Aluminum Production to Reduce Alumina Inclusion Risks

in-line degassing unit for aluminum melting

melt purification for recycled aluminum

continuous casting machine degassing parts

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