Effect of cast steel production metallurgy on the emergence of casting defects

摘要

The paper documents metallurgical possibilities of high alloy cast steel production in open induction medium frequencyfurnaces and an electric arc furnace in a gravity die casting foundry. The observation was focused on theemergence of gas defects in steel castings. The content of gases achieved during the metallurgical processes wasevaluated for every unit of the production equipment and the casting ladle before casting into disposable sandmoulds. The sand mould area was considered to be constant. The aim was to evaluate the current metallurgical possibilitiesof affecting the content of gases in high alloy cast steel in the current technical conditions of the foundry.