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Fluxes

Industrial aluminum fluxes for melt treatment


Our flux products clean and condition molten aluminum. They help remove oxides and inclusions, lower hydrogen, and stabilize yield in primary and recycled operations. Decades of production and strict quality control deliver fast action, low fume, and consistent results in melting, holding, transfer, and casting.


Why choose us


Developed by a national high‑tech manufacturer that drafted the aluminum alloy additive standard. Repeatable chemistry and tight process control ensure uniform distribution, low dust, and minimal residue. Certified to IATF 16949, ISO 9001, ISO 14001, and ISO 45001. We support leading producers with stable supply, traceability, and application know‑how.


Product types


Two core treatments are available: a refining grade for melt cleaning and inclusion control, and a degassing grade for hydrogen removal and porosity reduction. Each formulation is offered in plant‑friendly formats and can be aligned to your alloy and process.


Refining grade


Designed to wet and lift oxides and nonmetallic inclusions from the melt. It improves cleanliness, reduces dross, and enhances downstream casting quality.


Key functions



  • Breaks oxide films and encapsulates inclusions for easy skimming


  • Improves metal fluidity and reduces slag carryover


  • Supports stable casting with fewer defects and better surface finish



Typical use


Applied during melting, holding, and transfer to clean furnaces, ladles, and launders. Suited to primary and remelt operations for castings, billets, and ingots.


Features


Low‑dust, free‑flowing granules or powder for uniform distribution. Fast wetting and controlled reaction minimize smoke. Formulation limits corrosivity and residue for frequent use without damaging equipment.


Degassing grade


Reduces dissolved hydrogen and related porosity. It complements inert‑gas systems and rotary degassers to reach low gas levels and reliable mechanical properties.


Key functions



  • Promotes hydrogen desorption and bubble formation for efficient gas removal


  • Stabilizes gas content to improve casting soundness and reduce rejects


  • Works synergistically with inline degassing equipment



Typical use


Added before casting and during inline treatment for die casting, sand casting, and continuous casting. Effective in both primary and recycled aluminum with variable hydrogen pickup.


Features


Efficient gas adsorption with low residue formation. Compatible with common alloy families. Free‑flowing behavior supports consistent dosing and limits equipment fouling.


Formats and delivery


Granular and powder forms are available for manual addition, dosing, or injection. Packaging protects product integrity and moisture, and supports clean storage and controlled feeding.


Technical guidance


Each batch ships with certificates and application guidelines tailored to alloy and process. Recommended practice includes controlled addition rates, uniform distribution, and dwell time management to maximize cleaning or degassing efficiency while limiting fume and residue.


Quality and traceability


Manufacturing follows IATF 16949, ISO 9001, ISO 14001, and ISO 45001. Raw materials, moisture, and spectra are strictly controlled. Full batch traceability and documented testing help ensure consistent performance.


Applications



  • Foundry casting and melt conditioning: better inclusion removal and lower porosity for die castings and sand castings


  • Extrusion billet and rolling ingot preparation: improved billet soundness and ingot quality for downstream stability


  • Recycling and remelting: tuned for higher oxide loads and variable gas pickup; helps recover metal and reduce dross loss



Selection guide


Start with alloy chemistry, melt condition, and target cleanliness or gas levels. Consider charge mix, furnace type, and casting method. Choose the refining grade, the degassing grade, or a combined approach. Align addition method and temperature window with Al‑Si, Al‑Mg, and other alloy families. Moisture‑controlled, low‑impurity formulations help minimize fume and equipment wear.


Integration with master alloys


These treatments complement Master Alloys and the AlTiB grain refiner. Use them together to clean the melt, control gas, and optimize microstructure.


Supply and support


Four production bases and eight distribution centers provide reliable availability, flexible lead times, and consistent quality. A provincial‑level R&D center and full analysis labs support formulation development, spectral analysis, and process trials. Regional warehouses and coordinated logistics help reduce transit times and protect product integrity. Trial programs, dosing sheets, and operator training support smooth adoption. We also review melt data to fine‑tune procedures as feedstock and demand evolve.


Contact


Discuss your application or request a quote.

Harbin Dongsheng Metal Co.,Ltd, 
the leading manufacturer of Aluminum alloying element additives,specialize in Alloying metal tablets,Master alloys,Grain refiners,Modifiers,and Fluxes products.

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