Controlling the Gas Mode of a Mold for Producing Thin-Wall Castings

In foundry production, there is a tendency to increase the share of thin-walled castings. The formation of their quality is significantly influenced by the parameters of the thermal gas mode of the casting mold, which are still insufficiently studied. The work aims to develop a mathematical model of the gas mode of casting molds for producing thin-walled and artistic castings with developed relief and to optimize the process of filtering gases from the elements of the casting mold closed by liquid metal. Based on the optimization of the following technological process parameters: the gas permeability of the facing layer of the molding mixture and the diameter of the ventilation duct, it is possible to remove gases from the mold relief element by filtration entirely. The work developed and implemented a method, algorithm, and recommendations for optimizing the gas mode of casting molds to produce thin-walled castings.