Abstract
The authors focus on the problem of increasing the operational durability of molds, widely used in the practice of metallurgical enterprises and industries, the solution of which is still relevant today. In this regard, they set a goal - to identify patterns linking the modes of operation of the mold with the processes affecting the structure and properties of its material, affecting the quality of the ingot and the technical and economic indicators of its production, in particular, operational durability, and based on the results to outline promising ways to improve it. To achieve the goal, an information and analytical review of publications on the topic in open sources was carried out and, under the conditions of existing production, research work was carried out to monitor the behavior of the mold material during operation. Using modern laboratory equipment, thermometry of the working cycle of a cast iron mold was carried out, manifestations of microstructure degradation and deterioration of some properties, such as tensile strength, ductility, coefficient of linear thermal expansion were recorded. The obtained results allow us to outline promising directions for solving the specified problem, in particular, those related to liquid-phase processing of cast iron and steel as materials most widely used as mold material.
Keywords:
mold, operation, material, structure, properties, degradation