Abstract

1. Carburizing can be conducted in a conducting fluidized bed of fine carbon-containing material. 2. Carburizing in a conducting fluidized bed of carbon-containing material results from sublimation of solid carbon and adsorption of carbon atoms on the surface of the parts due to the influence of the current passing through the bed regardless of the composition of the gaseous atmosphere. 3. Carburizing can be conducted for any length of time at 1000–1130°C. At 1130°C and higher carburizing is limited by the possibility of sweating if the carbon concentration in the surface exceeds the eutectic. 4. The carbon concentration and the depth of diffusion are easily controlled.

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