Oct
30
2007
Engineering
Carbon recovery and inoculation effect of carbonic materials in cast iron processing
M. Chisamera*, I. Riposan*, S. Stan*, V. Constantin*, C. Diaconu**
*POLITEHNICA University of Bucharest; **ELECTROCARBON Slatina, Romania
67th World Foundry Congress
Metallurgical and petroleum coke materials used as conductive packing
medium to surround the carbon products or as resistor medium in electric
graphitizing furnaces are compared to natural graphite, scrap electrodes
and usually used calcined and graphitized petroleum coke carbon raisers,
under laboratory and plant trials conditions. Carbon recovery and
dissolution rate, specific sulphur increasing, slag generation, chilling
tendency, shr...
Oct
30
2007
Engineering
Net shape forming of iron and steel for clean production
Jeong-Il Youn and Young-Jig Kim
Department of Advanced Materials Engineering, Sungkyunkwan University, Korea
67th World Foundry Congress
The net shape forming of iron and steel by semisolid processing
(especially thixoforming) would be an optimum process. The process is
able to develop parts having advance qualities that combine the superior
material properties of ferrous alloys with the dimensional accuracy and
without harmful by-product. In this paper, the microstructural evolution of
steel and iron was investigated for making a technical map to get a proper
thixoformin...
Oct
30
2007
Engineering
Innovations in machine learning and defect diagnostics
R.S. Ransing and M. R. Ransing
Civil and Computational Engineering, School of Engineering, Swansea University, UK.
67th World Foundry Congress
Analysis of cause and effect relationships for diagnosis has always been a
favorite application for the artificial intelligence community. The first paper
on expert systems for casting defect analysis has appeared in mid
eighties. However, over the last decade, the research has slowed down
with very few new publications emerging in this area.
However, the problem is very relevant even today. With globalization and
experts retiring from t...
Oct
30
2007
Steel
Developments in the design of steel castings
M. Blair, R.W. Monroe
The Steel Founders’ Society of America, Crystal Lake, Illinois, USA
67th World Foundry Congress
The development of designs regardless of product form has essentially
been an evolutionary rather than revolutionary process. Designers have
usually pushed the envelope in small increments building on their current
designs. As designs have developed and inadequate performance has
been expereinced, designs have become more and more conservative.
This usually manifests itself in the specification of more restrictive nondestructive
inspecti...
Oct
30
2007
Metal matrix composites
Fabrication of short alumina fiber and in-situ Mg2Si particle- reinforced Magnesium alloy hybrid composite and its strength properties
K. Asano and H. Yoneda
Kinki University, Japan
67th World Foundry Congress
Magnesium alloy matrix composites reinforced with short alumina fibers and in-situ formed Mg2Si particles were fabricated in a permanent mold by the infiltration with the molten magnesium alloy into the preforms consisting of fibers having Si particles attached to their surfaces. P or CaF2 particles were used as the refiners of the Mg2Si particles. Fine Mg2Si particles of approximately 5μm grain size were formed due to the rapid solid...
