2024 Volume 64 Issue Extra-edition Pages ex227-ex232
Gas carburized quenching process exhausts much CO2 because fossil fuels is burned. For this reason, reducing CO2 is one of the urgent tasks for this process. “carburizing gas regenerator” is an equipment, including polyimide hollow-fiber membrane filter, which allows H2 to permeate therethrough. As H2 is generated during carburizing process, by circulating carrier gas using this equipment, H2 is eliminated by filter, and H2 eliminated carrier gas is able to reuse to the furnace.
Using carburizing gas regenerator enables to reduce total amount of carrier gas and CO2 emissions up to 50%, and get less variation of hardness and carbon concentration among carburized quenching specimens.
