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Thermal process and novel control methods for spin-casting

Published Article / The quality of spin casting products and mould life are critically dependent on thermal conditions they undergo. In order to improve the performance of production and to optimise the spin-casting process, characteristics of the thermal process was firstly identified by means of the measurement and simulation. Furthermore the investigation of the developed control methods, including the thermal property substitute method and mixture method of the metal powder, was kept on the effect of air-cooling induced automatically from the spinning of the mould on the thermal process. <br>The air cooling system was developed to optimise the thermal process during casting, utilising a theoretical analysis of the air-flow characteristics in a cooling tube submerged in a silicon mould and the characteristics of convection heat transfer associated with the mould and cast part. A numerical simulation of the casting process was also adopted in the analysis. The effect of the developed system on the thermal process was determined experimentally and it was found that a system of aircooling, automatically induced from the spinning of the mould, is feasible in optimisation of the thermal process. <br>The developed control methods can be applied to the practice of spin casting individually or collectively according to the specific situations and requirements.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:cut/oai:ir.cut.ac.za:11462/490
Date January 2006
CreatorsHuan, Z., Jordaan, G.D.
ContributorsCentral University of Technology, Free State, Bloemfontein
PublisherJournal for New Generation Sciences, Vol 4, Issue 1: Central University of Technology, Free State, Bloemfontein
Source SetsSouth African National ETD Portal
Languageen_US
Detected LanguageEnglish
TypeArticle
Format305 156 bytes, 1 file, Application/PDF
RightsCentral University of Technology, Free State, Bloemfontein
RelationJournal for New Generation Sciences;Vol 4, Issue 1

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