Method for overcoming strip surface fatigue stripe defect and preparing method of 5-series aluminum alloy tank cover material

The invention discloses a method for overcoming the strip surface fatigue stripe defect, and relates to the field of aluminum alloy production. According to the method, in the hot continuous rolling process, a steel wire brush roller is adopted to replace an original nylon brush roller, the capability of cleaning and brushing of an F2 work roller is improved, accordingly, the friction force is reduced, and the product surface quality is improved. According to the method, waste products caused by the fatigue stripe defect are greatly reduced, the number of the waste products is reduced, energyconsumption is effectively reduced as well, the rolling throughput is improved, the rolling risks are reduced, the production cost is effectively reduced, the tank cover material product quality and stability are improved as well, and market competitiveness of similar products is improved. A preparing method of a 5-series aluminum alloy tank cover material comprises the above method for overcomingthe strip surface fatigue