Automatic Control of Molten Metal Flow for Improving Casting Performance

2011 ◽  
Vol 693 ◽  
pp. 179-184
Author(s):  
Thomas Jarlsmark ◽  
Jan Strömbeck ◽  
Mikael Terner ◽  
Jerry Wilkins
Keyword(s):  
Molten Metal ◽  
Metal Flow ◽  
Casting Process ◽  
Direct Chill ◽  
Level Control ◽  
Level Measurement ◽  
Cost Efficient ◽  
Molten Metal Flow ◽  
Automatic Level ◽  
Rolling Ingot

The ways to gain better quality and higher casting performance is an urgent topic among aluminium producers today. This issue is also often on the agenda at conferences like this and the subjects and technologies to achieve this varies. Controlling the molten metal flow by maintaining predefined levels or level patterns is one of many powerful tools to reach this goal. Precimeter Control specializes in applications for non-ferrous molten metal level measurement and molten metal flow control. By integration, or retrofitting, any new or existing casting line can easily be automatically controlled and gain improved casting performance in a cost efficient way. This paper will focus on the main benefits from automatic level control and how some plants have achieved improvements in their casting process of DC (Direct Chill) slab (or rolling ingot) casting after implementing such technology.

scholarly journals Computational investigation of thermal behavior and molten metal flow with moving laser heat source for selective laser melting process

2021 ◽  
Vol 24 ◽  
pp. 100860
Author(s):  
Patiparn Ninpetch ◽  
Pruet Kowitwarangkul ◽  
Sitthipong Mahathanabodee ◽  
Prasert Chalermkarnnon ◽  
Phadungsak Rattanadecho
Keyword(s):  
Heat Source ◽  
Thermal Behavior ◽  
Selective Laser Melting ◽  
Molten Metal ◽  
Metal Flow ◽  
Melting Process ◽  
Computational Investigation ◽  
Laser Melting ◽  
Laser Heat Source ◽  
Molten Metal Flow

scholarly journals Molten metal flow through multiple gates in the runner of die casting.

1986 ◽  
Vol 36 (9) ◽  
pp. 577-581
Author(s):  
Yasushi IWATA ◽  
Yoshiaki YAMAMOTO ◽  
Motoshi NAKAMURA ◽  
Haruo SUZUKI ◽  
Hiroshi SAWADA ◽  
...  
Keyword(s):  
Molten Metal ◽  
Die Casting ◽  
Metal Flow ◽  
Flow Through ◽  
Molten Metal Flow

scholarly journals Development of a Kármán Vortex Probe for Measuring the Velocity of Molten Metal Flow

1994 ◽  
Vol 35 (10) ◽  
pp. 716-721 ◽  
Author(s):  
Manabu Iguchi ◽  
Masamichi Takeuchi ◽  
Hirotoshi Kawabata ◽  
Kiyoshi Ebina ◽  
Zen-ichiro Morita
Keyword(s):  
Molten Metal ◽  
Metal Flow ◽  
Molten Metal Flow

scholarly journals Numerical Simulation and Industrial Application of High Speed Tandem TIG Welding

2021 ◽  
Author(s):  
Dongsheng Wu ◽  
Jiuling Huang ◽  
Kong Liang ◽  
Xueming Hua ◽  
Min Wang ◽  
...  
Keyword(s):  
Molten Metal ◽  
Weld Pool ◽  
High Speed ◽  
Metal Flow ◽  
Welding Process ◽  
Tig Welding ◽  
Pool Surface ◽  
Weld Pool Surface ◽  
Welding Processes ◽  
Molten Metal Flow

Abstract Self-developed high speed tandem TIG welding equipment were adopted to manufacture titanium welded tubes with high efficiency and high quality. The joint made by this high efficient welding process met Chinese standard requirements. A coupled electrode, arc and weld pool numerical model was also developed to investigate temperature and velocity distributions, and energy propagation of this welding process. The numerical results showed that the Marangoni stress was much higher than the arc shear stress, and was mainly positive after leading and trailing arcs in the x and y directions, so the molten metal flowed backward on the top weld pool surface. Previous studies proposed that a “pull-push” flow pattern defined as a backward molten metal flow after the leading arc and a forward molten metal flow before the trailing arc existed on the top weld pool surface in tandem arc welding processes, while it was not observed in this case. The calculated arc efficiency of the high speed tandem TIG welding was about 79.8%.

scholarly journals Defects Analysis Using E Foundry and Flow Simulation for Crank Case Casting

10.29007/xl1j ◽  
2018 ◽  
Author(s):  
Yogin Vekariya ◽  
Trushant Desai ◽  
Rakesh Barot ◽  
Balkrushna Sharma
Keyword(s):  
Molten Metal ◽  
Computer Technology ◽  
Metal Flow ◽  
Flow Analysis ◽  
Flow Characteristics ◽  
Flow Simulation ◽  
Casting Process ◽  
Gating System ◽  
Dross Formation ◽  
Defects Analysis

Casting process deals with the metal in the molten state. When the molten metal is poured into the mold box, Smooth and turbulence less flow with appropriate velocity is need to be ensured. Type of flow while pouring the molten metal has significant influence on the end characteristics of casting. Inefficient metal flow can result in error beyond altering the desired characteristics of casting. Dross formation while pouring the metal has direct connection with the type of flow of molten metal. In short, one cannot neglect the flow of molten metal on other hand expecting sound casting formation. Gating characteristics directly deals with the type of flow expected while pouring. To provide desired flow is one of the functions of efficient gating system. But it is very difficult to consider the flow characteristics while actually designing the gating system. Computer technology has taken leap to aid foundry engineer in control of metal flow. Simulation soft-wares have been equipped with provision of flow analysis while designing the Gating system.

scholarly journals Non-contact Sensor for the Measurement of Meniscus Velocity of Molten Metal Flow

2003 ◽  
Vol 43 (6) ◽  
pp. 836-841 ◽  
Author(s):  
Manabu Iguchi ◽  
Kazuharu Hanazaki ◽  
Daisuke Iguchi
Keyword(s):  
Molten Metal ◽  
Metal Flow ◽  
Contact Sensor ◽  
Molten Metal Flow
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