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Development of Process Conditions for the Preparation of Copper Alloys Post-Production Chips for the Continuous Casting Process

Malec Witold, Cwolek Beata, Brudny Anna, Kulasa Joanna, Marek W., Stolorz K., Wróbel D., Filipowicz A.

Archives of Foundry Engineering

2023

Vol. 23, iss. 2

43--50

The paper presents the results of research aimed at developing assumptions for the preparation of a charge in the form of fine scrap copper alloys (chips/shells) guaranteeing effective removal of impurities and obtaining a metal bath of the required metallurgical quality. The tests were conducted for tin-zinc-lead bronze of the CC499K grade. As part of the work, the characteristics of this type of waste available on the market were made in terms of quality and the possibility of their use for the production of both alloys and finished products, taking into account the elimination of harmful impurities that may ultimately affect the production process adversely. The subject of the work was the selection of appropriate waste cleaning methods in the form of an oily shell in the CC499K (CuZn5Sn5Pb2) grade and its drying in terms of increasing the use of impure waste from machining as scrap for direct melting. The waste was assessed in relation to individual parameters. The research was carried out on 3 groups of waste, with varying degrees of moisture.