Abstract. The utilization of cast iron chips as an alternative cheaper raw material in the powder metallurgy industry is currently undergoing development to produce useful products. The present work is concerned with the technology and economy of such as alternative powder processing technique. The mechanical properties of grey cast iron are primarily determined by the proportion of included graphite in the metallic matrix in which the graphite also affects the properties of powdered cast iron chips. The influences of the processing technique on the powder characteristics such as the shape, the size, the loose graphite as well as the subsequent route of compacting and sintering are described. In sintering, the effects of the protective atmosphere used on the properties of sintered compact are discussed.
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