Fluxes for Drossing, Covering and Cleaning Aluminum Alloys

Fluxes for Drossing, Covering and Cleaning Aluminum Alloys

A wide range of chemical fluxes is available in powder and granular form for manual or MDU application. Granular fluxes are dust free and more effective than powder fluxes, allowing addition rates to be reduced. For MTS application, COVERAL MTS fluxes must be used.

• High recovery
• Reduced dross volume and associated disposal costs
• Reduced furnace wall oxide build-up
• Low cost per application
• Reduced oxide formation
• Non-metallics removed from melt
• Reduced melt loss
• Clean furnace walls
• Fast acting
• Products for all alloys, furnaces and temperatures

 

Granular vs Powder

COVERAL fluxes are available in granular or conventional powder form. The premium granular COVERAL GR fluxes are preferentially used instead of compositionally similar powder fluxes because their individual components are manufactured into single granules, allowing for a more homogeneous distribution of the active ingredients during application. The improved homogeneity allows the product to be used with greater efficiency. Furthermore, the larger particles greatly minimize dust and smoke evolution.
• Improved homogeneity and efficiency
• Negligible smoke
• Reduced fume
• Virtually odor free
• Minimizes dust

 

Cleaning Fluxes

Cleaning fluxes are designed to remove non-metallics from the melt by trapping the oxide particles as they float out.   Products are available in powder, granular, and MTS form for a range of application temperatures.  The are also available in sodium-free, fluoride-free, sodium/calcium-free, and sodium/calcium/fluoride-free formulations.

 

Drossing / Covering Fluxes

Covering and drossing fluxes are used to form a molten layer to protect the melt from oxidation and hydrogen pick-up. They agglomerate the oxides and non-metallic materials in the melt, cleaning the metal and forming a good dross with very low metallic content which can easily be removed.

 

Products are available in powder, granular, and MTS form for a wide range of high, medium, and low application temperatures, and in sodium-free and sodium/calcium-free formulations.

"Prior to our relationship with Weaver Materiel, we were purchasing riser sleeves direct from the OEM. As a stocking distributor, Weaver typically is able to deliver same or next day. OEM lead times averaged three to four weeks. With Weaver, I've been able to reduce my working inventory by about 40%."

- JD Schmidt, QA Manager, Ohio Ferrous Foundry

“Ashland Foundry & Machine Works and Weatherly Casting are grateful for the partnership in our working relationship with Weaver Materials.  Weaver has helped us maintain pricing and avoid increases in a volatile market.  Weaver has always kept us in supply of material when markets dictated shortages/allocation status.  If Weaver was not in our vendor pool daily production ability would have been negatively impacted.  Weaver is also technically able to review our foundry processes and make suggestions to either achieve a cost savings or process improvement.  I am looking forward to a continued collaboration between the Weaver team and my locations.”
 
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