Copper mould tube is the heart of the continuous casting machine, the main function of the mould is to establish a solid shell sufficient in strength to support its liquid core upon entry into the secondary spray cooling zone. The mould is basically an open-ended box structure, containing a water-cooled inner lining fabricated from a high purity copper alloy. The inner face of the copper mould is often plated with chromium or nickel to provide a harder working surface, and to avoid copper pickup on the surface of the cast strand, which can otherwise facilitate surface cracks on the product. There are 3 different materials we can offer which covers a majority of the application around the world: