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Mother alloys for component adjustment are additives used mainly in the manufacturing process of aluminum alloys.
These alloys are made by adding small amounts of the desired elements in high concentrations to the base metal. The composition of the aluminum alloy can be precisely adjusted.
This improves the characteristics of the alloy, such as strength, corrosion resistance, and workability, and contributs to the manufacture of high-quality aluminum products.
90% Mg/10% Al base alloy.
Mg can be added to molten metal at a very high yield.
Its compact shape makes it easy to work with when adding magnesium, and it takes up little storage space. Compared to pure magnesium, it is very easy to handle.
The amount required to increase Mg in molten metal by 0.1% is approximately 110 g per 100 kg of molten metal.
This is a base alloy for the improvement treatment of sub-eutectic and eutectic aluminum alloys with Sr. It is possible to maintain the effect of microstructure improvement even if the molten metal is held for a long time.
After treating molten metal with deoxidizing flux (N100 to N400 series), push this base alloy into the molten metal with a phosphorite or the like and mix it thoroughly.
After that, carefully dehydrogenate with nitrogen gas or dry argon gas, and confirm hydrogen gas volume before casting. Please note that the use of chlorine-based active degassing agent will cause Sr loss.
5% TI, 1% Boron wire for the hypoeutectic alloy.
Molten temperature: 680-800 degree C.
Volume: put 0.04~0.2wt% of molten metal (example 40-200g for 100kg).
You can keep the micro grain structure for two hours after the melting.
