God, Zangwill claimed, was using America as “a crucible” to melt the “fifty” barbarian tribes of Europe into a metal from which He can cast Americans. Today, the melting pot metaphor is ...

The furnace is also able to produce the alloys of some reactive metals such as Ti and Zr in a water-cooled copper crucible using the ISM coil. By controlling the chamber pressure and the temperature, ...

Arc melting furnace can melt metals and alloys at over 3000°C with the aid of the electric arc between the non-consumable tungsten electrode and the copper crucible. Therefore, the arc furnace is a ...