Abstract
The results of studies on the use of modern two cored wires injection
method for production of ferritic nodular cast iron (ductile iron) with
use of unique implementation of drum ladle as a treatment / transport and
casting ladle instead vertical treatment ladle was described. The
injection of length of Ø 9mm wires, cored: in FeSi + Mg nodulariser
mixture and inoculant master alloy is a treatment method which can be used
to produce iron melted in coreless induction furnace. This paper describes
the results and analysis of using this method for optimal production of
ductile iron under specific industrial conditions. It means, that length
of nodulariser wire plus treatment and pouring temperatures were
optimized. In this case, was taken ductile iron with material designation:
EN-GJS-SiMo40-6 Grade according EN 16124:2010 E. Microstructure of great
number of trials was controlled on internally used sample which has been
correlated with standard sample before. The paper presents typical
ferritic metallic matrix and nodular graphite. Additionally, mechanical
properties were checked in some experiments. Mean values of magnesium
recovery and cost of this new method from optimized process parameters
were calculated as well.
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