Granular Flux

Granular Flux is a molten aluminum treatment material designed to improve melt cleanliness, reduce oxidation, and enhance casting quality during aluminum melting and holding processes.

The flux forms a protective layer on the molten aluminum surface, helping minimize metal oxidation while promoting the separation of non-metallic inclusions and slag. Depending on the application, granular flux can be used for covering, refining, cleaning, and dross removal operations.

Widely used in aluminum foundries, billet casting plants, and alloy production facilities, granular flux helps improve metal recovery, reduce melt loss, and maintain stable casting performance.

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Granular Flux is a molten aluminum treatment material designed to improve melt cleanliness, reduce oxidation, and enhance casting quality during aluminum melting and holding processes.

The flux forms a protective layer on the molten aluminum surface, helping minimize metal oxidation while promoting the separation of non-metallic inclusions and slag. Depending on the application, granular flux can be used for covering, refining, cleaning, and dross removal operations.

Widely used in aluminum foundries, billet casting plants, and alloy production facilities, granular flux helps improve metal recovery, reduce melt loss, and maintain stable casting performance.

Key Features

  • Effective molten aluminum protection
  • Reduced oxidation and metal loss
  • Improved melt cleanliness
  • Easy addition and operation
  • Fast reaction and slag separation
  • Suitable for various aluminum alloys
  • Compatible with manual and automated flux feeding systems

Main Functions

Surface Protection

Forms a protective cover on molten aluminum to reduce oxidation and hydrogen absorption during melting and holding.

Inclusion Removal

Helps gather oxide films and non-metallic inclusions, making them easier to remove from the melt.

Slag Separation

Improves the fluidity of dross and promotes efficient separation between aluminum metal and slag.

Metal Recovery Improvement

Reduces aluminum loss trapped inside dross, helping improve metal yield and production efficiency.

Product Advantages

High Treatment Efficiency

Rapid reaction with molten aluminum impurities helps shorten treatment time.

Lower Metal Loss

Optimized formulation helps maximize aluminum recovery from slag.

Stable Performance

Consistent chemical composition ensures reliable treatment results.

Easy Application

Can be added manually or through automatic flux injection systems.

Suitable for Multiple Processes

Applicable to melting furnaces, holding furnaces, launders, and casting systems.

Granular Flux is widely used throughout molten aluminum treatment and casting operations.

Typical Applications

  • Aluminum melting furnaces
  • Holding furnaces
  • Billet casting lines
  • Ingot casting operations
  • Foundry aluminum casting
  • Recycled aluminum processing
  • Alloy preparation and adjustment

Suitable Industries

  • Automotive aluminum alloys
  • Industrial aluminum profiles
  • Packaging aluminum products
  • Electronics aluminum materials
  • Construction aluminum products
  • Aerospace aluminum applications

Typical Functions

Depending on formulation, granular flux can be used for:

  • Covering treatment
  • Refining treatment
  • Dross removal
  • Furnace cleaning
  • Inclusion control
  • Metal recovery improvement

How to Choose the Right Granular Flux

Selecting the proper flux depends on alloy composition, furnace conditions, and treatment objectives.

1. Define the Treatment Purpose

Choose the flux according to the required function:

  • Covering
  • Refining
  • Cleaning
  • Deslagging

2. Consider Alloy Type

Different aluminum alloys may require different flux formulations for optimal treatment results.

3. Evaluate Furnace Conditions

Melting temperature, holding time, and furnace capacity influence flux selection.

4. Consider Metal Cleanliness Requirements

Higher-quality casting applications often require more effective refining and inclusion removal performance.

Usage Recommendations

For best results:

  • Add flux evenly across the molten aluminum surface
  • Follow recommended dosage rates
  • Remove dross promptly after treatment
  • Maintain proper furnace temperature
  • Avoid excessive flux addition

Proper flux selection and operation can significantly improve molten aluminum cleanliness and casting quality.

Common Benefits in Aluminum Casting

Improved Melt Cleanliness

Helps remove oxide films and suspended inclusions from molten aluminum.

Reduced Oxidation Loss

Protects molten aluminum from excessive surface oxidation.

Better Casting Quality

Cleaner molten metal helps reduce casting defects and improve product consistency.

Increased Production Efficiency

Improves metal recovery while reducing waste and rework.

Lower Operating Costs

Reduced dross generation and higher aluminum yield contribute to lower production costs.

Granular Flux is commonly used together with molten aluminum treatment equipment for optimal purification results.

Degassing Equipment

Removes dissolved hydrogen and works together with flux treatment to improve melt quality.

Ceramic Foam Filter

Provides final-stage filtration after flux treatment to remove remaining inclusions.

Deep Bed Filter System

Used in high-cleanliness aluminum production requiring advanced filtration.

Launder System

Transfers treated molten aluminum while minimizing temperature loss and oxidation.

Holding Furnace

Provides stable molten aluminum conditions during flux treatment.

Flux Injection Equipment

Automated systems can improve dosage accuracy and treatment consistency.

Integrated molten aluminum treatment solutions can be customized according to alloy type, casting process, and production requirements.

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