RT Journal Article
SR Electronic
A1 Válek, Tomáš
A1 Hampl, Jiří
A1 Rušaj, Jakub
T1 Improvements in Material Characteristics Core Centrifugally Cast Rolls
JF Manufacturing Technology Journal
YR 2016
VO 16
IS 2
SP 468
OP 471
DO 10.21062/ujep/x.2016/a/1213-2489/MT/16/2/468
UL https://journalmt.com/artkey/mft-201602-0029.php
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 Vítkovické foundries, spol. s r.o. Evaluation of melts and microstructures were made in the laboratories of the VSB-TU Ostrava.