2026 年 3 月 13 日

In the aluminum production chain, the sow mold and ingot mold serve distinct but equally important functions. Once molten aluminum has been processed and refined, it needs to be cast into a solid, transportable form — and the type of mold used determines the size, weight, and downstream application of the resulting product. Understanding how sow molds fit into the broader casthouse workflow, and what sets a well-engineered mold apart from an ordinary one, is essential for aluminum plants looking to optimize their casting operations and the commercial value of their output. What Sow Molds Do — and Why They Matter in Aluminum Production A sow mold is a large-format casting mold used by primary and secondary aluminum smelters to cast refined molten aluminum into heavy billets — commonly referred to as sows — typically weighing in ranges of 1,200 lb, 1,500 lb, or 2,000 lb. These large aluminum sows are produced primarily for sale and transfer to other aluminum plants or smelting facilitie

Aluminum dross — the oxide-rich layer that forms on molten aluminum in reverberatory furnaces — contains a meaningful amount of recoverable metal. The dross press machine was developed specifically to extract that metal efficiently, before oxidation consumes it. Understanding how this dross press equipment works, and why it matters, helps primary and secondary aluminum smelters make better decisions about their dross handling process and the return they can expect from it. What Aluminum Dross Actually Contains — and Why Speed Matters When hot dross is skimmed from the furnace surface, it is not simply waste. Aluminum dross is a mixture of liquid aluminum, oxides, salts, and other compounds — and the moment it leaves the furnace, it is actively oxidizing. The liquid aluminum within the dross continues to react with oxygen, converting recoverable metal into oxide. This is the core reason why immediate processing with an aluminium dross machine matters so much. The longer hot dross sits