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2. Crucible - Wikipedia

   en.wikipedia.org/wiki/Crucible

   A modern crucible used in the production of silicon ingots via the Czochralski process Smaller clay graphite crucibles for copper alloy melting. A crucible is a container in which metals or other substances may be melted or subjected to very high temperatures. Although crucibles have historically tended to be made out of clay, [1] they can be ...

3. Exothermic welding - Wikipedia

   en.wikipedia.org/wiki/Exothermic_welding

   The process incorporates either an igniter for use with standard graphite molds or a consumable sealed drop-in weld metal cartridge, semi-permanent graphite crucible mold, and an ignition source that tethers to the cartridge with a cable that provides the safe remote ignition.

4. Graphite - Wikipedia

   en.wikipedia.org/wiki/Graphite

   The use of graphite as a refractory (heat-resistant) material began before 1900 with graphite crucibles used to hold molten metal; this is now a minor part of refractories. In the mid-1980s, the carbon-magnesite brick became important, and a bit later the alumina-graphite shape.

5. Induction heating - Wikipedia

   en.wikipedia.org/wiki/Induction_heating

   Induction heating of 25 mm metal bar using 15 kW at 450 kHz. Keeping silicon in crucible molten at 2,650 °F (1,450 °C) for Czochralski crystal growth, 1956. Induction heating allows the targeted heating of an applicable item for applications including surface hardening, melting, brazing and soldering, and heating to fit. Due to their ...

6. Flux method - Wikipedia

   en.wikipedia.org/wiki/Flux_method

   The flux lowers the melting point of the desired compound, analogous to a wet chemistry recrystallization. [1] The flux is molten in a highly stable crucible that does not react with the flux. Metal crucibles, such as platinum, titanium, and niobium are used for the growth of oxide crystals.

7. Crucible steel - Wikipedia

   en.wikipedia.org/wiki/Crucible_steel

   Crucible steel is steel made by melting pig iron, cast iron, iron, and sometimes steel, often along with sand, glass, ashes, and other fluxes, in a crucible. Crucible steel was first developed in the middle of the 1st millennium BCE in Southern India and Sri Lanka using the wootz process. [1] [2] [3] [4]