Gas flow through a multilayer ceramic mould in lost wax foundry process
Journal Title: Archiwum Odlewnictwa - Year 2009, Vol 9, Issue 2
Abstract
The paper deals with the issues of permeability testing of ceramic moulds used in lost wax foundry process. The main issue in the testing is to provide proper specimens of ceramic moulds (CM). The moulds have to be repeatable and must be free of internal defects of microcrack type that are formed mainly during the removal of patterns from CM in the course of heat treatment. Moreover, the process of forming ceramic moulds must be similar to the general industrial process of CM moulds making regarding their anisotropic structure. The permeability parameter reflecting gas flow through multilayer ceramic moulds was also examined with attention to the investment casting shape accuracy.
Authors and Affiliations
H. Matysiak, R. Haratym, M. Kłębczyk
Keywords
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