Boliden is one of Europe's largest suppliers of metals with a turnover of approximately SEK 50 billion. The main metals are zinc and copper. Other metals that Boliden produces include lead, gold and silver.
They gave us a real challenge when they wanted to find a more cost-effective and durable edging for their 43,000 sheets that are used for electrolytic precipitation of copper. High demands on long life, flexibility and a very good fit. The strips used were not straight enough and therefore did not hold tightly, which made the process more difficult.
First, a straight and dimensionally stable profile was extruded, which was then post-processed by milling an exact groove in the profile. This is to achieve an optimal fit to the copper plate. In addition, inserts and a top stick were injection molded to ensure that the edging really remains during the enrichment process itself.