Structural researching of the inner, primary supporting layer from ductile cast iron with a bimetalic roller shell with high-crome material used as an external (working) layer, during a centrifugal casting method of production with a vertical axis.

  • 1 “Centromet”AD, Vratza


The processes accompanying the formation of the so called carrier (inner) layer, which is formed in the production of bimetallic castings by the method of centrifugal casting are analyzed. Attention is paid to the structural changes caused by the diffusion processes occurring during the casting and crystallization process. Modification with a spheroidizing modifier with a Cr content in the melt above 0.6% was successfully carried out.



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