Roll-to-roll surface treatment process for anti-corrosion conductive film layer of aluminum alloy strip and special film coating liquid for roll-to-roll surface treatment process

The invention discloses a roll-to-roll surface treatment process for an anti-corrosion conductive film layer of an aluminum alloy strip and a special coating liquid and a special lubrication protection treatment agent thereof. The roll-to-roll surface treatment process comprises the steps of feeding, ultrasonic degreasing, spray washing, alkaline etching, acid pickling, chemical polishing, ash removal, chemical coating, ultrasonic washing, drying, lubrication protection treatment, drying and receiving. A special coating solution adopted for coating comprises 80 g of sodium hydroxide, 3-5 g of sodium polyacrylate, 1-2 g of potassium ferrocyanide, 1 g of disodium ethylene diamine tetraacetate and 10-20 g of chromic oxide, 1 L of trichloroethane and absolute ethyl alcohol with the ratio being 9: 1 are adopted as a solution mixed solvent, and a special lubricating protection treatment agent is adopted for lubricating protection treatment. The metal strip body takes aluminum or aluminum alloy as a base material, t