Ralph, your videos are very entertaining and relaxing to watch. You may know this by now but if not you may find this interesting. It’s not all about melting points. Aluminum will dissolve copper at high temperatures. I believe that scorpion mold was in fact copper but the molten aluminum simply dissolved it. If you watch my “casting aluminum death trooper” video you can see the copper pot I poured the rest of my aluminum into after the casting. I know for a fact that that pot is copper however the aluminum ate right through the bottom. By that same token, aluminum will eventually dissolve steel crucibles causing a failure. Cheers!
I am aware of this effect, I just find it weird that the small fish mold never gives me any problems, made a Lead one, Zinc one and 3 Aluminium ones and the mold is still fine. Thanks for your input on this and thanks for watching, Ill be watching your stuff too off course 👍👍
Ralph Mourik No problem! Yes that is quite weird. Who knows, It may be that the aluminum stays molten longer in the larger molds. Keep up the good work.
Thanks for watching! BigstackD is an awesome guy, he inspires many metal casters on RU-vid, I myself don't want to be one of his clones though so I'll be talking in my videos ... a lot! 😋👍👊
DAMMMM you sprangen him LMAO!!!!!! as a big fisherman the carp the last mould you showed and it worked out at the end I would love one? Sorry Ralph sorry had to stop it!!!! and go do some things around the house and started to watch again and seen what I seen I loved the big CAKE!!!! size ones. You put I think you put 3 little in 1 big and the water was hot then you said OK!!! put the second one in Your like hmm a bit of a delay reaction. And then you see the water started the water start to boil and you OK!!!! now the water is boiling. And all your worried about was you plastic bucket I'm sorry Ralph bro I LMAO!!!! great video Ralph I might try this because I can get my hands on Aluminium to only to do the Igots thank you for showing us.
Hi Ralph, to bad those cake pans were not copper, they would have turned out nice. I go to thrift stores and find different shaped pans to make stepping stones. I use the jello and bundt cake molds to put around my sprinkler heads. Still need to build myself a furnace. ATB Amy
the pans used for molds that broke through, are made of probably an aluminum/tin composite not capable of withstanding the temperature or weight of the molten aluminum. Aluminum is light in weight but combined with temperature the makeshift mold isn't strong enough to hold. When a material reaches a certain heating point the material that holds the molten metal must be both thicker and more dense to withstand. Prime example, the crucible is both strong enough and dense enough to withstand the constant heat needed to melt metal.
