There are numerous producers of vertical and horizontal tube furnaces, but far fewer producers of “front load”, “bottom load”, and “top hat” furnaces specially designed for processing in inert atmospheres. These furnaces are sealed at the element ports, thermocouple ports and door access. Gas inlets permit purging in all furnaces, but to work in alternative atmospheres, the room air in the furnace needs to be displaced by the chosen gas or gas compound. These gases might comprise argon, nitrogen, oxygen, and hydrogen compounds.
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