The temperature had to be way higher than the pure meting point because the aluminium was liquefied, not just melted.
Pure aluminium melting point applies to environment where the temperature is the same all around, e.g. in a foundry furnance, which wasn’t the case here.
The temperature of the same 1-2 metres away from the car was lower so the aluminium should reduce its original temperature while moving through the ground (not possible the sand had the same temperature of 1200).
The conclusion is that the original temperature had to be way, way higher for the aluminium to not lose its liquidity and move along cold sand 1-2 meters away.
It isn't pure aluminum. Here's an ordinary family with a firepot cobbled together, using 50 lbs of self-starting BBQ charcoal to melt about 30 lbs. of aluminum scrap and pour it in an anthill. These anthill castings, of which there are hundreds you can see online, demonstrate how easy it is to melt a lot of aluminum, how much it flows, how it can be done without setting everything around on fire.
Important to notice:
The temperature had to be way higher than the pure meting point because the aluminium was liquefied, not just melted.
Pure aluminium melting point applies to environment where the temperature is the same all around, e.g. in a foundry furnance, which wasn’t the case here.
The temperature of the same 1-2 metres away from the car was lower so the aluminium should reduce its original temperature while moving through the ground (not possible the sand had the same temperature of 1200).
The conclusion is that the original temperature had to be way, way higher for the aluminium to not lose its liquidity and move along cold sand 1-2 meters away.
It isn't pure aluminum. Here's an ordinary family with a firepot cobbled together, using 50 lbs of self-starting BBQ charcoal to melt about 30 lbs. of aluminum scrap and pour it in an anthill. These anthill castings, of which there are hundreds you can see online, demonstrate how easy it is to melt a lot of aluminum, how much it flows, how it can be done without setting everything around on fire.
https://www.youtube.com/watch?v=dBxgb2yYqCU