Projeto e construção de um sistema de reofundição contínua para processamento de ligas de baixa temperatura de fusão.

Abstract

Continuous casting is an innovative casting technology where the alloy is cast in the partially solidified state after undergoing mechanical stirring. This process allows the production of more homogeneous castings of superior quality and with less demolding time when compared to conventional processes. This work presents the development of design and construction of a continuous casting system for the processing of low temperature melting alloys (T 773K), with the following specifications: average flow of 0.0006m2. min-1 stirring speed in the 1000 rpm range, crucible capacity of 0.005m2 and precise precise flow control. A processing unit was constructed consisting of three independent resistive heating furnaces for melting, agitation and metal casting. The agitator has a dual function, which is to stir the metal paste and control the flow through the vertical movement. In a control unit was concentrated the equipment of measurement and control of the furnaces and of the agitator.