Before we get into the main subject, we need to know what do we mean by “fluxes” in Aluminum Die Casting context.
Fluxes are special blends of typically solid, inorganic compounds designed for cleaning, degassing, grain refining, and/or chemistry modification of molten aluminum alloys and other purposes. A flux recipe varies depending on its purpose and other process variables, such as alloy and temperature.
To get into focus on what we will discover on this topic, we are ready to discuss with You on the function of fluxes as cleaning agents to aluminum alloys.
Please have a look at this one-page catalog, for things you need to know about fluxes as cleaning agents!
Figure 1. One-page Catalog of Schaefer Flux
So, what do we need to clean from molten aluminum alloys?
The answer is, we need to clean the aluminum alloy from Oxides and Hydrogen Gas that can potentially cause casting product defects.
Some other FAQs are:
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