Copper mould tube needs to meet the performance:Good thermal conductivity, condensation of liquid metal in the copper mould tube. When the copper tube is working, the surface of the inner cavity is heated in the gradual condensation state of the liquid metal, and the back is transferred in the circulation of the cooling water to realize heat. Conduction, about 5%-20% of the heat passes through the copper plate, and the tube exchanges heat. Therefore, it is generally made of a copper or copper alloy with good thermal conductivity.
Better high temperature strength, in the environment of continuous intense heat exchange, the copper plate and the copper tube not only maintain good strength at normal temperature, but also maintain heat conduction at the temperature of 200-300 °C. , no recrystallization softening, no obvious plastic deformation, good mechanical properties