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I had never before considered, but how do they melt/cast tungsten? How do you get temperatures that hot in a controlled way, when basically nothing is solid any
by 0cf8612b2e1e 4y ago
I had never before considered, but how do they melt/cast tungsten? How do you get temperatures that hot in a controlled way, when basically nothing is solid anymore.
- PaulHoule 4y agohttps://en.wikipedia.org/wiki/Powder_metallurgy https://en.wikipedia.org/wiki/Powder_metallurgy
- jcampbell1 4y agoMelting tungsten in atmospheric conditions is not really useful. You start with tungsten oxide as a gas and it reacts with hydrogen and tungsten powder precipitates out. The powder is then heated and compressed to form a polycrystalline billet (sintering). Technically speaking, the first step in tig welding aluminum is to melt the tungsten and it forms a little ball. It is not hard to reach the required temperature. You can just put a lightbulb filament in 220 socket and it will melt the tungsten in a split second. That being said, a crucible of molten tungsten is not a thing.