Mejoramiento del rendimiento metálico y de molde en la fundición de hierro nodular y moldeo con resinas furánicas.

Abstract

The design of gating system involves several stages, beginning with the determination of the choke area of casting, once this critical value has been calculated, the other components that make up the gating system are in a proportional relationship, which can be established by the designer or based on the experience of other authors. Once the dimensioning has been carried out through CAD modeling, the theoretical metallic and mold yields can be calculated. Also, it was very beneficial to use a finite element analysis to observe the behavior of the fluid during the filling of the casting mold and solidification, determining if there are inconveniences or problems that later cause casting defects, with which it should be returned. to consider the variables that affect these problems. Therefore, the gating system was reformulated with the objective of obtaining optimal models, without defects which can be observed through simulation, proposing 3 models considering the model with the preliminary dimensioning, which was used to determine possible defects. Carrying out an evaluation of each one, a recommended design is reached, considering the yields of metallic and mold to finally provide a mold for casting.