Energy saving potentials of an efficient recycling process of different aluminum rejects

oleh: Thomas Borgert, Werner Homberg

Format: Article
Diterbitkan: Elsevier 2022-06-01

Deskripsi

In addition to the efficient and fully comprehensive use of all available resources, energy optimization is also an important part of the global efforts to reduce emissions. In connection with the energy-efficient production of aluminum products, it is therefore necessary to use recycling processes that are as energy- and resource-efficient as possible. One example of such a process is a friction-induced and continuous recycling process related to the Conform process which is currently the subject of intense research work at the LUF as an intermediate stage on the way to a direct part production from scrap. The energy saving potential of processing chips of the wrought alloy EN-AW-6060 has been determined in previous investigations to be 50% compared to the melting metallurgical process. Further studies presented in this paper will investigate the feasibility of recycling other aluminum alloys as well as other shaped aluminum products. This validation of the feasibility for these very different fields of application represents the basis for a broad application of the process. In a final analysis, the friction-induced recycling process and the primary and secondary production of semi-finished aluminum products are compared in terms of the energy required.