Carburizing Atmosphere Exchanges
Carburizing Atmosphere Exchanges
(OP)
Can anyone tell me what the recommended atmosphere exchanges per hour should be during a carburizing cycle. We are using endothermic and enriching with methane. Thanks in advance.





RE: Carburizing Atmosphere Exchanges
We had two Lindberg Box furnaces using just endo gas and it was regulated by the vent flame. I don't have the numbers, but I remember the Heat Treater set his flow to the furnace by the flame height not by the installed rotometer. The vent nozzle was no more that 3/8" NPT and he kept about a 3" high flame. I don't recall any change when going from one operation to another, in other words this was a universal indicator that the proper amount of gas was in the furnace. There was a gas igniter to relight the vent when the door was in use.
RE: Carburizing Atmosphere Exchanges
RE: Carburizing Atmosphere Exchanges
RE: Carburizing Atmosphere Exchanges