ON THE DETERIORATION OF CARBURIZING VALUE OF THE SOLID CARBURIZER
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概要
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-It is a well known fact that solid carburizer gradually exhausts its carburizing value after repeated uses.Therefore it is a common practice that a certain percentage of new material is added each time.The present writer, taking some carburizing materials-wood charcool, coke, chared leather, bone, artificial graphite etc.-tested and made researches on several properties; adsorption, reactivity for CO2, change of specific gravity, volume and composition of gas liberated when heated.Finally obtained the following results:-The deterioration of carburizing value of carburizer mainly depends on the deterioration of reactivity for carbon dioxide due to oxidation of surface of solid carbon which composed carburizer.
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