Meaning
Internal metal recycling includes the processed metal byproducts generated during production that are returned directly to the furnace without leaving the manufacturing facility. Metal casting plants generate run around scrap during casting and trimming operations. This material has known metallurgy because it never mixes with outside metal.
Processing Flow
Foundry lines routinely generate risers and gates that must be reclaimed. Conveying this run around scrap back to the melt shop requires dedicated bins and collection chutes. Fast recycling reduces the energy needed to melt the metal since some scraps are still warm.
This loop reduces the reliance on external metal suppliers and shortens production lead times.
Composition Security
Chemical consistency is easier to manage when handling materials from a known source. Remelting run around scrap minimizes the risk of introducing foreign elements into the alloy. Trace contaminations are avoided since the metal has not been exposed to external contamination.
Operational Efficiency
Cast house yields are measured by comparing finished output with the total weight of metal melted. High generation of run around scrap indicates that the mold or gate design is inefficient. Redesigning molds to use narrower channels reduces the volume of scrap generated per cycle.
