Carburizing with CO enriched gas
- Metaltechnic Research Lab., Tokyo (Japan)
- Kanto Yakin Kogyo Co., Ltd., Hiratsuka (Japan)
As the atmosphere for gas carburizing, many gases have been made commercially feasible as endothermic gas. Carburizing with endothermic gas of natural gas and air tends to degrade uniformity in the case depth of the product because the CO density is low. To deal with this, the authors carried out research on carburizing with CO-enriched endothermic (CEE) gas with CO density of 22--30% produced through reformulation of natural gas and oxygen with the aim of practical application. The authors developed an endothermic gas generator equipped with continuous gas carburizing equipment and uniform quality can be maintained even if large quantities of products are carburized by an overlapping process. In CO-enriched CEE carburizing, it is important to correctly manage the gas carburizing system, which consists of the gas composition, gas pressure, carburizing temperature, and the carbon potential.
- OSTI ID:
- 389739
- Report Number(s):
- CONF-951222--; ISBN 0-87170-561-3
- Country of Publication:
- United States
- Language:
- English
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