What is a tempering furnace? The tempering furnace is an oven used for tempering. The heating process can increase the toughness of iron-based alloys such as cast iron or steel. Metal is usually put in a tempering furnace after hardening, and then heated to a certain temperature to remove excess hardness.
Tempering furnaces are mainly used to increase the toughness of metal or cast iron tools by reducing the hardness...
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