HOW TO GET PURE ALUMINUM 99.999 FROM SCRAP

[majed]

PLEASE CAN ANY ONE EXPLAINE HOW WE GET PURE ALUMINUM FROM ALUMINUM SCRAP.

[ignatz]

I'm not sure why you'd want 99.999% pure Aluminum. The alloys are much more interesting and cast better. When choosing scrap metal, try to find things that were cast originally. For example, Aluminum engine blocks and cylinder heads are typically cast so they will melt and cast again nicely. Avoid things that were originally cut from a billet or somehow processed after creation. For example, avoid empty soda cans as they are lined with plastic and tend to give very little castable Aluminum compared to the garbage you have to burn away (except for the pull tabs, they melt nicely).

[Cruiser]

You will need to do some serious reading on aluminum. If you started with some aluminum chips of say 6061-t6 and melted it down, you would be vaporing off many of the qualities then when ready to pour you'd be dragging off many more qualities in the slag. The actual pour would be something completely different than what you started with. The engineers who do this for a living know what and how much to add to the melt so that they are within limits of what they want. What you would end up with could be considered as "Pot metal" ! If you bought a bag of mix with all the alloys and chemicals pre-mixed for a melt of say 6061 and you controlled your melt and temp perfectly you'd have a chance at ending up with 6061 but no guarantees !