Posts Tagged ‘molten’
molten silver casting
heating silver for casting
why wouldn\’t this work for getting impurities from gold during melting with mapp gas:?
jemrx2 asked:
I’ve probably spent too much time staring at the glowing little egg and breathing too many fumes, but for years now I ve melted gold in some old pottery crucibles. Ive had some luck with sticking the tip of a stainless steakknife in the molten gold and slowly sifting-out little pieces of metal that aren’t quite in a liquid state. This process I use also is to set up a piece of pottery so it’s directly above a cast iron skillet full of distilled water. Once the molten gold is ‘clear’ (actually looks like yellowish mercury) I get to a point where I take some big pliers and spill the molten blob right into the water. If I could control the spill so that it cools while it’s still going down in the water, wouldn’t the bottom part be heavier and thus of purer form? If I grind this piece of alloy with a course file into little shavings would that help help before using nit/acid? I’ve got some merc, too, but I’d like to find a way that’s chem-free and just uses gravity. Or melting temps.
Metal Casting DIY
I’ve probably spent too much time staring at the glowing little egg and breathing too many fumes, but for years now I ve melted gold in some old pottery crucibles. Ive had some luck with sticking the tip of a stainless steakknife in the molten gold and slowly sifting-out little pieces of metal that aren’t quite in a liquid state. This process I use also is to set up a piece of pottery so it’s directly above a cast iron skillet full of distilled water. Once the molten gold is ‘clear’ (actually looks like yellowish mercury) I get to a point where I take some big pliers and spill the molten blob right into the water. If I could control the spill so that it cools while it’s still going down in the water, wouldn’t the bottom part be heavier and thus of purer form? If I grind this piece of alloy with a course file into little shavings would that help help before using nit/acid? I’ve got some merc, too, but I’d like to find a way that’s chem-free and just uses gravity. Or melting temps.
Metal Casting DIY
Posted in Chemistry | 
Tags: cast iron skillet, gold, liquid state, molten, molten gold, water | 
1 Comment »
why wouldn\’t this work for getting impurities from gold during melting with mapp gas:?
jemrx2 asked:
I’ve probably spent too much time staring at the glowing little egg and breathing too many fumes, but for years now I ve melted gold in some old pottery crucibles. Ive had some luck with sticking the tip of a stainless steakknife in the molten gold and slowly sifting-out little pieces of metal that aren’t quite in a liquid state. This process I use also is to set up a piece of pottery so it’s directly above a cast iron skillet full of distilled water. Once the molten gold is ‘clear’ (actually looks like yellowish mercury) I get to a point where I take some big pliers and spill the molten blob right into the water. If I could control the spill so that it cools while it’s still going down in the water, wouldn’t the bottom part be heavier and thus of purer form? If I grind this piece of alloy with a course file into little shavings would that help help before using nit/acid? I’ve got some merc, too, but I’d like to find a way that’s chem-free and just uses gravity. Or melting temps.
Metal Casting
I’ve probably spent too much time staring at the glowing little egg and breathing too many fumes, but for years now I ve melted gold in some old pottery crucibles. Ive had some luck with sticking the tip of a stainless steakknife in the molten gold and slowly sifting-out little pieces of metal that aren’t quite in a liquid state. This process I use also is to set up a piece of pottery so it’s directly above a cast iron skillet full of distilled water. Once the molten gold is ‘clear’ (actually looks like yellowish mercury) I get to a point where I take some big pliers and spill the molten blob right into the water. If I could control the spill so that it cools while it’s still going down in the water, wouldn’t the bottom part be heavier and thus of purer form? If I grind this piece of alloy with a course file into little shavings would that help help before using nit/acid? I’ve got some merc, too, but I’d like to find a way that’s chem-free and just uses gravity. Or melting temps.
Metal Casting
Posted in Chemistry |
Tags: cast iron skillet, gold, liquid state, molten, molten gold, water |
1 Comment »
