Nov
07
2007
Aleaciones ligeras
Role of carbon as solute element in carbon grain refinement of Mg-Al alloy
Seong-Yong Shim, Qinglin Jin, Su-Gun Lim*
Gyeongsang National University, Jinju, Gyeongnam, Korea
67th World Foundry Congress
Grain refining effects of carbon (C2Cl6) addition were investigated using
AZ31 magnesium alloy. The addition of C2Cl6 to AZ31 magnesium alloy
significantly reduced the grain size from 400㎛to about 120㎛. The tensile
properties were increased due to grain refinement. EPMA analysis
showed that apparent segregation of carbon element was occurred in
AZ31castings treated with carbon. It was considered that the carbon may
...
Nov
07
2007
Fusión y equipos
Oxygen technologies: reduce melting cost and emissions
T. Niehoff *, P. Keena **
* Air Products GmbH, Germany, ** Air Products plc, UK.
67th World Foundry Congress
This Paper describes the economic and technical case for implementing
Air Products\' Rapidfire APCOS technology in an iron cupola operation to
offset the impact of high and unpredictable costs for coke, steel scrap and
alloying agents that all foundries are experiencing.
The Paper includes real examples of this technology in operation today,
where it typically delivers net savings of between £1 and £3 per tonne of
liquid...
Nov
07
2007
Ingeniería
Cast iron material standards for a new millennium
M P Macnaughtan C.Eng MIMMM FICME
EURAC Ltd. UK.
67th World Foundry Congress
A shift in the production of cast iron components away from the western
industrialised nations, and the emergence of Asian countries as producers
of significant volumes of cast iron, resulted in the reactivation of the
International Organization for Standardisation committee ISO TC 25 under
the Secretariat of the United Kingdom.
The first plenary of ISO/TC 25 held in 1998 agreed that a review and
revision of the published ISO standards f...
Nov
07
2007
Técnicas de simulación avanzadas
The use of different computer simulation software packages to predict casting filling and solidification
S Oxley and P M Haigh
Castings Technology International
67th World Foundry Congress
A series of filling and solidification simulations have been carried out using
different simulation programs to evaluate the effectiveness of simulation
for precision castings.
A four casting geometry was designed to be a problematical system to
create a very poor filling pattern and with a feeding method which will
produce areas containing shrinkage defects. Results were determined
using six different commercially available software pro...
Nov
07
2007
Técnicas de simulación avanzadas
Improving casting performance through customized insulating shapes and advanced simulation techniques
Prat*, M Arrieta, J Galaz , A Beeson, A Meléndez*** E Anglada, T. Vicario, A Seoane**, A Jorge
*ASHLAND CASTING SOLUTIONS, Spain, **BETSAIDE S.A.L., Spain, ***INASMET-TECNALIA, Spain
67th World Foundry Congress
Over the years foundries have been looking for ways to improve their
process. IBERIA ASHLAND and INASMET TECNALIA, together with
BETSAIDE S.A.L. have implemented an innovative solution for methoding
castings to ensure the integrity of the finished parts by using their latest
development of customized insulating shapes combined with advanced
simulation techniques. This study will show how improvements can be
achieved in the mechanical cha...
