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Degassing Device for Foundry

Degassing Device for Foundry

Degassing Device for Foundry is mainly used for the purification of the melt in the production of high-precision aluminum products.

There are many factors that affect the quality of aluminum and its alloys. The hydrogen content, inclusions and alkali metal concentration of molten aluminum have the most important impact on the quality of aluminum alloys. Major manufacturers and research institutions have invested a lot of resources in research on how to reduce the content of hydrogen and inclusions in molten aluminum. As a result, many new processes and equipment have appeared on the market.

Online Degassing Device for Foundry is installed between the furnace and the casting machine to remove hydrogen and other residues contained in molten aluminum and alloys.

On-line molten aluminum degassing equipment sprays inert gas into molten aluminum to achieve the purpose of hydrogen removal. Both argon and nitrogen can be used as inert gases to degas molten aluminum. The purity of the inert gas must be above 99.99%.

Degassing Device for Foundry

The aluminum degassing system rotary degasser uses a high-speed rotating rotor to spray inert gas to break large inert bubbles into very fine small bubbles, so that they are evenly dispersed in the molten metal.

By reducing the bubble diameter, the total surface area of these bubbles increases sharply, which allows more inert bubble surfaces to come into contact with hydrogen and impurities in the molten metal, bringing these harmful substances to the liquid surface.

The flow control of the inert gas into the molten aluminum can be adjusted according to the volume of the molten metal to be processed. The speed of the rotating rod and the rotor can be adjusted to produce bubbles of the suitable size to facilitate the diffusion of inert gas.

Degassing Device for Foundry has an ultra-long life furnace body and adopts a new type of high-silicon melt manufacturing technology. The degassing rotor, heater protection cover, and thermocouple protection cover all adopt silicon nitride (Si3N4) ceramic manufacturing technology and aluminum product production technology with high added value and high technical performance requirements.

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