All the specimens are carburized in a controllable gas carburizing
furnace, then subsequently quenched in oil to room temperature, and finally followed by tempering and cooling in air.
10, shows the elemental composition of the sintered gear component after the gas carburizing
Compared with gas carburizing
, induction heating is a "batch of one" process.
Gas carburizing using atmospheric pressure treatment in gas-fired or electrically heated furnaces is now the most popular case-hardening method.
Another recent development is the rotary gas carburizing furnace, often arranged with several units linked together.
Controlling the equilibrium of gas carburizing atmospheres has always been a very delicate task.