Jul 30, 2026
How Granulated Refining Flux Removes Hydrogen and Inclusions from Molten Aluminum
A practical guide to how GRF granulated refining flux works with inert gas injection to remove hydrogen, inclusions, and alkali metals from molten aluminum.
Granulated refining flux is used during aluminum and aluminum-alloy melting to support removal of hydrogen, non-metallic inclusions, and certain alkali metals from the melt.
The source material describes use with inert gas injection. In practice, the buyer should confirm the gas route, treatment time, melt temperature, and alloy condition before selecting a refining process.
A practical selection check starts with the problem being solved: hydrogen control, inclusion removal, alkali-metal reduction, or a combination of these. The answer affects both the refining flux choice and the process parameters.
Zhongshan Huayu can help match a suitable flux family when the customer provides alloy grade, furnace information, melt volume, and quality target. This article avoids dosage claims where the source material does not provide a confirmed number.
