Dec
20
2007
Cast iron
Multiloop approach for automatic mould filling in ferrous foundry.
C. Debray*, M. Dussud*, M. Biardeau*, and P. Canon**
* SERT, France, ** ACI Le Mans, France
67th World Foundry Congress
Foundries expect such performance from automatic pouring that their
requisites are going beyond the reach of a classic approach to automatic
control. A particular shortcoming that has been evidenced is that an
automatic system based on a single level sensor is not apt to cope with
the phenomena related to mould filling speed, such as refeeding. Multiloop
strategy answers those needs: it implies a second camera, called
post-pouring sensor...
Dec
20
2007
Management and marketing
A Global Castings Users Viewpoint
Mandy Kennedy
Cummins Turbo Technology Ltd.
67th World Foundry Congress
Cummins Turbo Technology Ltd are major users of castings. Mandy
Kennedy is the Global Quality Executive for the company and will present
her views on how the industry is changing and how suppliers to the
company will need to adapt. This will include changes to alloys and
specifications, surface finish requirements and the trend towards
purchasing sub-assemblies and finished machined sub-assemblies. The
presentation will also focus on how...
Dec
17
2007
Light alloys
Alpha-case Controlled Titanium Casting
Si-Young Sung and Young-Jig Kim
Sungkyunkwan University, Suwon, Korea
67th World Foundry Congress
The alpha-case formation mechanism was elucidated for the titanium
casting. The α-case formation reaction between Ti and Al2O3 mold was
examined in a plasma arc melting furnace. The reaction products were
characterized by electron probe micro-analyzer and transmission electron
microscopy. The α-case generation between Ti and Al2O3 mold was not
able to be explained by the conventional α-case formation mechanism,
...
Dec
17
2007
Engineering
Titanium matrix (TiB+TiC) composites shot sleeve for Al alloys diecasting
Si-Young Sung, Bong-Jae Choi and Young-Jig Kim
Sungkyunkwan University, Suwon, Korea
67th World Foundry Congress
The applicability of titanium matrix composites (TMCs) sleeve for Al alloys
die-casting was investigated by interfacial reaction, and wear and
mechanical test. (TiC +TiB) reinforced TMCs were in-situ synthesized and
net-shape formed using a horizontal vacuum induction melting system.
The resistance-ability of (TiC+TiB) reinforced TMCs to molten Al alloys
attack was also examined. Their reactions were carried out in a furnace at
993 K for...
Dec
17
2007
Light alloys
The new method and device for fast evaluating inoculation result of eutectic Al-Si alloy
Li Dayong, Shi Dequan, Wang Lihua and Zhang Yutong
Harbin University of Science and Technology, P.R.China
67th World Foundry Congress
Inoculation is a necessary step to produce high quality eutectic Al-Si alloy
castings. Thermal analysis and metallographic observation methods have
been being used to evaluate inoculation result of eutectic Al-Si alloy in real
production, however they are unable to meet the requirement of real time
monitoring in front of furnace because of their relative long measuring
period. The authors put forward a new method to evaluate inoculation
...
