Abstract
Problem Statement (Relevance): This paper examines the design of refractory equipment used in impact boxes of a tundish in a continuous casting machine (CCM). Optimised components of the tundish ensure effective formation of metal flows and help achieve better metal quality. Objectives: The objective is to use the design procedure described, as well as the casting simulation data to optimize the design of the impact pad and the corresponding calculation procedure aimed at improved quality of continuously cast billets. Methods Applied: Calculated dependencies in the area of machine design which are based on the fundamental mass and energy conservation laws, equations of mathematical physics, as well as known and proven mathematical techniques. Originality: This is the first paper that describes how to calculate metal velocity at the metal-slag boundary when using the impact box with space-oriented side holes. Findings: This paper describes calculated dependencies that can be used to determine the key design parameters of impact boxes with side holes designed for symmetrical multi-strand CCMs. The authors also simulated the design of such impact box. Practical Relevance: The authors describe a design technique for designing symmetrical tundish impact boxes allowing for the metal flows. They also came up with an initial data calculation scheme for impact box design.
Keywords
Continuous casting machine (CCM), tundish, metal flows, modelling.
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