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The present work shows the result of research regarding the solid carburisers as follows, 1. Composition and volume of evolving gas from solid carburisers when heated up to high temperature. 2. Comparison between carburising powers of various solid carburisers. The author has reached the following conclusion, 1. The evolving gases from solid carburisers contain a large quantity of Hydrogen and hydro carbon at primary heating, but they are replaced by carbon-oxygen gases at secondary and afterward heating. 2. Ratio between CO to CO_2 and H_2 to CH_4 gases, evolved at high temperature, agrees with the equilibrium systems of Boudouard Rhead and Wheeler, and Schenk. 3. Carbonate as energisers, accelerates the carburised action at such a low temperature as it does not decompose, but de composed carbonate can not accelerate so strongly as undecomposed carbonate. Then, carburiser mixed with carbonate, decomposed temperature of which is very high, does not decrease rapidly the carbuising power after repeated cabrurisations. 4. The carburisation mechanism of the solid carburiser must agree with the theory of CO-CO_2 Fe, hut it must be in more powerful condition on account of the presence of great many quantity of solid carbon.
社団法人日本鉄鋼協会の論文
1928-04-25