PT Journal
AU Valek, T
   Hampl, J
   Rusaj, J
TI Improvements in Material Characteristics Core Centrifugally Cast Rolls
SO Manufacturing Technology Journal
PY 2016
BP 468
EP 471
VL 16
IS 2
DI 10.21062/ujep/x.2016/a/1213-2489/MT/16/2/468
DE Centrifugally cast rolls; metallurgical quality; spheroidal graphite cast iron; inoculation
AB The paper describes the influence of metallurgical processing on the microstructural characteristics of spheroidal graphite cast iron. The iron is used for casting the core of double layer centrifugally cast rolls. Low carbon content in the core spheroidal graphite cast iron supporting metastable solidification was eliminated by managing of metallurgical processing of spheroidal graphite cast iron. The metallurgical quality of the cast iron was controlled by using thermal analysis during all time i.e. melting furnace, through modification and inoculation. The metallurgical quality is documented by metallographic analysis, determination of surface proportion and amount of graphite on surface etched specimen. Test rolls were cast in operating conditions in roll foundry Vitkovicke foundries, spol. s r.o. Evaluation of melts and microstructures were made in the laboratories of the VSB-TU Ostrava.
ER