Production of aluminum alloy clad strips requires many processes, and a reduction in the number processes has long been demanded. A method to cast directly from molten metal using twin roll caster with copper rolls is proposed this work. Two types casters were designed tested. One was vertical-type tandem other equipped scraper. The casting conducted an oxidizing atmosphere. at speeds higher th...

Structured Abstract Page Purpose Powered-wheelchair transducers and systems are presented that provided more control, reduced veer on slopes, and improved energy conservation, while reducing effort. They are especially significant for people with movement disorders who lack sufficient hand-grasp and release ability or sufficient targeting skill to use joysticks. Design/methodologies/approach La...

Continuous casting is the central process phase with strong influence on the final quality of the steel products. Several different models for continuous casting have been developed at the Laboratory of Metallurgy at Helsinki University of Technology (TKK) concerning e.g. fluid flow, heat transfer, thermodynamic equilibria and statistical approaches. In this paper the inhouse solidification mod...

A computational thermo-mechanical model has been developed to simulate the continuous casting of shaped sections, such as used for thin steel slabs. A general form of the transient heat equation including latent-heat from phase transformations such as solidification and other temperature-dependent properties is solved numerically for the temperature field history. The resulting thermal stresses...

Bi-continuous alumina/aluminium composites were made by infiltrating an alumina preform which had the structure of a reticulated ceramic foam. The low density preforms were prepared from a polyurethane suspension of alumina powder which was pyrolysed and sintered after foaming. Higher density preforms consisted of ceramic foams with open cells. All these preforms were infiltrated with 6061 alum...

This lecture honoring Keith Brimacombe looks over the history, current abilities, and future potential of mathematical models to improve understanding and to help solve practical problems in the continuous casting of steel. Early finite-difference models of solidification, which were pioneered by Keith Brimacombe and his students, form the basis for the online dynamic models used to control spr...

1 [email protected], Tel: +44 (0)115 846 6521. Fax: +44 (0)115 951 4254. 2 [email protected], Tel: +44 (0)1274 234005. Fax: +44 (0)1274 234054. 3 [email protected], Tel: +44 (0)115 951 4222. Fax: +44 (0)115 951 4249. *Research supported by EPSRC grant number GR/N04225/01, DASH associates and a committee of vice chancellors and Principals ORS award. Abstract This paper describes a new...

Particles in molten steel, including argon-gas bubbles, slag droplets, and non-metallic inclusions, are removed into the surface-slag layer or captured by solidifying steel-shell during continuous steel casting. Captured particles often become serious defects final product, so understanding particle-capture mechanisms is important for quality. Slab casters have a straight mold upper-strand prio...