Ingot casting and stretch forming process and equipment of copper and aluminium composite bus-bar wire

The invention relates to a process and a device for preparing an electric material, and particularly relates to a process and a device for ingot casting and stretch forming of a copper-aluminum composite bus bar. The invention provides a manufacturing process and a manufacturing device for the ingot stretching of a bus bar, wherein copper and aluminum materials can be combined in the solid and liquid states, the interface is free of air and pollution, and the bus bar reaches the metallurgical combination state and is compositely prepared by the copper and aluminum materials. The process comprises the following steps: molten aluminum is cast in a die casting furnace, and an operating platform provided with a special copper pipe rises and is sleeved on a guide pipe; the molten aluminum is cast in the special copper pipe, the operating platform descends and is subjected to cooling, coagulation, drying, head breaking and production line drawing, after continuous cold drawing for many times, the copper-aluminum co