Method for controlling distribution of mesohigh electronic aluminum foil etching holes
An electronic aluminum foil, medium and high voltage technology, applied in the direction of circuits, capacitors, electrical components, etc., can solve the problems of accelerated aluminum foil surface corrosion and thinning, many control factors, complex and cumbersome processes, etc., to achieve increased electrostatic specific capacitance, improved uniformity, The effect of reducing the probability of merging holes
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Embodiment 1
[0030] The specific operation steps are the same as the steps of the method for controlling the pitting distribution of medium and high voltage electronic aluminum foil described above, but the specific control technical conditions are different:
[0031] Preparation of Al with ZnO microspheres on the surface of aluminum foil 2 o 3 Thin-film aluminum foil, ZnO microspheres with a diameter of 0.3 μm, Al 2 o 3 The volume ratio to ZnO is 50:1, and the heat treatment condition is 500°C for 30s. Then, the same porosity corrosion, hole expansion corrosion, post-treatment and 520V chemical conversion treatment were carried out as in the comparative example.
Embodiment 2
[0033] The specific operation steps are the same as the steps of the method for controlling the pitting distribution of medium and high voltage electronic aluminum foil described above, but the specific control technical conditions are different:
[0034] Preparation of Al with ZnO microspheres on the surface of aluminum foil 2 o 3 Thin film of aluminum foil, ZnO microspheres with a diameter of 0.5 μm, Al 2 o 3 The volume ratio to ZnO is 50:1, and the heat treatment condition is 500°C for 30s. Then, the same porosity corrosion, hole expansion corrosion, post-treatment and 520V chemical conversion treatment were carried out as in the comparative example.
Embodiment 3
[0036] The specific operation steps are the same as the steps of the method for controlling the pitting distribution of medium and high voltage electronic aluminum foil described above, but the specific control technical conditions are different:
[0037] Preparation of Al with ZnO microspheres on the surface of aluminum foil 2 o 3 Thin film of aluminum foil, ZnO microspheres with a diameter of 1 μm, Al 2 o 3 The volume ratio to ZnO is 50:1, and the heat treatment condition is 500°C for 30s. Then, the same porosity corrosion, hole expansion corrosion, post-treatment and 520V chemical conversion treatment were carried out as in the comparative example.
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