Yunnan Aluminum Yuanxin Successfully Completes Cathode Carbon Block Phosphorus Pig Iron Casting Project

Published: Jan 12, 2025 23:20

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On a sunny morning, pig iron bubbled vigorously inside the medium-frequency furnace, gradually filling the gaps between the green graphitised cathode carbon blocks and cathode steel rods, eventually solidifying into a single unit. This process marked the successful completion of Yunnan Aluminum Yuanxin Company's cathode carbon block phosphorus pig iron casting project, with a capacity of 20 kt/a, which has officially commenced production.

The project was officially launched in the summer of the year before last, adopting advanced fully graphitised cathode phosphorus iron casting and assembly technology. This technology not only features excellent thermal shock resistance and sodium corrosion resistance but also effectively enhances conductivity. By reducing the cell bottom voltage drop and improving current efficiency, the project achieves energy conservation and emission reduction while ensuring the stable operation of the electrolytic cell and strengthening the current.

After the project's completion, Yunnan Aluminum Yuanxin Company has established a complete industry chain for graphitised cathode carbon materials used in aluminum electrolysis, covering "forming, baking, graphitisation, machining, and assembly.

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