▎ 摘　　要

NOVELTY - Method for manufacturing a medium-pressure corrosion foil, involves performing pre-treatment by placing aluminum foil in a phosphoric acid solution at 60-80 degrees C and soaking for 30-90 seconds, performing first-level direct current pore corrosion treatment by placing pre-treated aluminum foil in a first mixed treatment solution at 60-90 degrees C, performing secondary chemical reaming corrosion treatment by cleaning aluminum foil that has completed first-level direct current pore corrosion treatment with pure water, placing in a second mixed treatment solution at 60-90 degrees C, and adding corrosion inhibitor to second mixed treatment solution, performing three-stage electrochemical hole expansion and corrosion treatment by placing aluminum foil in a third mixed treatment solution at 60-90 degrees C, and adding corrosion inhibitor to third mixed treatment solution, and performing post-treatment by soaking aluminum foil in a nitric acid solution at 40-60 degrees C for 120-180 seconds. USE - The method is used for manufacturing medium-pressure corrosion foil. ADVANTAGE - The method increases uniformity of the aluminum foil corrosion hole and the bending strength of the aluminum foil, is simple to operate, and has low production cost. DETAILED DESCRIPTION - Method for manufacturing a medium-pressure corrosion foil, involves performing pre-treatment by placing aluminum foil in a phosphoric acid solution at 60-80 degrees C and soaking for 30-90 seconds, performing first-level direct current pore corrosion treatment by placing pre-treated aluminum foil in a first mixed treatment solution at 60-90 degrees C, performing secondary chemical reaming corrosion treatment by cleaning the aluminum foil that has completed the first-level direct current pore corrosion treatment with pure water, placing in a second mixed treatment solution at 60-90 degrees C, where the second mixed treatment solution comprises 3-4 %mass hydrochloric acid, 0.5-0.9 %mass graphene oxide and 3-5 %mass aluminum ion, and adding 0.2-1 %mass corrosion inhibitor to the second mixed treatment solution, performing three-stage electrochemical hole expansion and corrosion treatment by placing the aluminum foil that has completed the second-stage chemical hole expansion and corrosion treatment in a third mixed treatment solution at 60-90 degrees C, where the third mixed treatment solution comprises 3-4 %mass hydrochloric acid and 3-5 %mass aluminum ion, and adding 0.2-1 %mass corrosion inhibitor to the third mixed treatment solution, and performing post-treatment by soaking the aluminum foil that has completed the three-stage electrochemical hole expansion corrosion treatment in a nitric acid solution at 40-60 degrees C for 120-180 seconds.