Advanced Metallurgy Solves Copper Alloy Casting Quality Issues

The pursuit of flawless copper alloy castings—free from porosity, impurities, and performance defects—has become an achievable reality through specialized metallurgical treatments. Modern solutions now offer exceptional fluidity, superior mechanical properties, and impeccable surface finishes.

Critical factors in copper alloy melting and casting—including metal cleanliness, fluidity, feeding efficiency, mechanical properties, workplace environment, porosity, and machinability—directly impact final product quality and production efficiency. Advanced metallurgical treatment products address these challenges through several key advantages:

• Enhanced Metal Cleanliness: Effective removal of impurities ensures pure internal structures, improving mechanical properties and corrosion resistance.
• Optimized Metal Fluidity: Improved flow characteristics enable complete mold filling, reducing cold shuts and misruns while enhancing surface quality.
• Improved Feeding Efficiency: Promotes effective metal feeding during solidification, minimizing shrinkage defects and increasing density.
• Mechanical Property Enhancement: Optimizes microstructure to improve tensile strength, yield strength, and elongation.
• Reduced Workplace Fumes: Environmentally conscious formulations minimize smoke emissions.
• Lower Porosity: Eliminates dissolved gases and inclusions to improve density and pressure tightness.
• Enhanced Machinability: Refines microstructure to reduce hardness and brittleness.

ELIMINAL Flux: A high-performance oxidizer for aluminum contamination removal in copper alloys (not suitable for aluminum bronze; limited application in manganese/silicon bronzes).

CUPREX 100: Oxidizing cover for tin/nickel-bearing alloys including red brass, tin bronzes (with <10% lead), phosphor bronzes, and cupronickels.

CUPRIT 49: Powdered neutral cover for brass, specialty brasses, and brazing alloys.

ALBRAL 2: Reducing cleanser/cover for aluminum bronzes and specialty brasses containing oxidizable elements (Al, Mn, Si), forming liquid slag.

LOGAS 50 Pucks: Immersion treatment for hydrogen removal and oxide flotation in copper alloys.

SLAX 20: Slag coagulant for all copper alloys.

ELEKTRO Flux: Covering/cleaning flux for all copper alloys in electric/induction furnaces, particularly channel induction systems.

ELEKTRO 1743/2: Covering/mild reducing cleanser for all alloys, especially brasses.

Common in recycled copper alloys, aluminum impurities degrade conductivity and corrosion resistance. This flux oxidizes aluminum into removable alumina.

Maintains compositional stability by preventing oxidation of sensitive alloy elements during melting.

Provides both cleaning and reducing protection for oxidation-prone alloys like aluminum bronze.

Eliminates hydrogen—the primary cause of gas porosity—through immersion treatment.

Specifically formulated to address oxidation and impurity challenges in electric/induction furnace operations.