Technology of producing transformer copper belt with broad width larger than 630mm in short process

The invention discloses a technology of producing a transformer copper belt with the broad width larger than 630mm in a short process. The technology comprises the following steps of burdening; up-drawing continuous casting; primary rolling; annealing; finished product rolling; annealing and cleaning; shearing of a finished product and packaging and warehousing, wherein the step of burdening comprises the following steps of proportioning 1-grade cathode copper and red copper or an old material according to the components required for production of the transformer copper belt, respectively performing weighing, and putting the 1-grade cathode copper and the red copper or the old material in a smelting furnace; and the step of up-drawing continuous casting comprises the following steps of after smelting, opening a valve on a communicating pipeline between the smelting furnace and a holding furnace, enabling copper liquid to flow into the holding furnace through the communicating pipeline,adopting an up-drawing c