Calculation of static and dynamic strength of thin-walled molds by pouring liquid metal
The article is devoted to the study and calculation of the parameters of power interaction of thin-walled molds with the liquid metal that is poured in them. The occurrence of tensions in the shell and especially in ceramic molds often leads to their destruction and, as a consequence, the scrap of casting. The necessity of a theoretical calculation of the minimum level of the mechanical strength of molds in bending is substantiated. These calculations are performed for dynamic conditions (interaction molds with moving liquid metal) and static conditions (filled metal mold). The conditions of the strength in bending and recommendations on the organization of its control are given for the molds of different thickness.