7055 aluminum alloy flat bar and production technology and application thereof

The invention provides a 7055 aluminum alloy flat bar and a production technology and application thereof and relates to the field of aluminum alloys. According to the production technology of the 7055 aluminum alloy flat bar, raw materials are prepared according to alloy element compositions of a 7055 aluminum alloy, and the raw materials are smelted and cast into cast rods; a double-stage homogenization system is adopted for carrying out homogenization treatment on the cast rods; the cast rods obtained after the homogenization treatment are subjected to extrusion treatment, and a product isobtained; the product is prestretched; a double-stage solid solution system is adopted for carrying out solid solution heat treatment on the prestretched product; the product is stretched and straightened within 6 hours after the solid solution heat treatment; a double-stage aging system is adopted for carrying out manual aging heat treatment on the product, and the production flow and technological parameters of the prod