Method of manufacturing metal foil for electrolytic capacitor
AssigneesSanyo Electric Co., Ltd., Saga Sanyo Industries Co., Ltd.
InventorTakayuki Matsumoto
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Abstract
The invention provides a method of manufacturing a metal foil for an electrolytic capacitor. In the case of slitting a wide metal strip subjected to etching treatment into a predetermined size with a cutting blade, a slitting portion of the heated wide metal strip is slit to provide the metal foil with few burrs and cracks at the slit edge surface.
Claims13
A method for manufacturing a metal foil for an electrolytic capacitor, comprising:
- slitting a wide metal strip subjected to etching treatment into a predetermined size with a cutting blade, wherein
- the slitting portion of the wide metal strip to be brought into contact with the cutting blade is heated by blowing hot air to the wide metal strip, and
- the cutting blade slits the slitting portion in the heated state.
A method for manufacturing a metal foil for an electrolytic capacitor, comprising:
- slitting a wide metal strip subjected to etching treatment into a predetermined size with a cutting blade, wherein
- the slitting portion of the wide metal strip to be brought into contact with the cutting blade is heated, wherein an etched portion of the slitting portion is filled with a solvent, and
- the cutting blade slits the slitting portion in the heated state.
A method for manufacturing a metal foil for an electrolytic capacitor, comprising:
- slitting a wide metal strip subjected to etching treatment into a predetermined size with a cutting blade, wherein
- the slitting portion of the wide metal strip to be brought into contact with the cutting blade is heated, wherein
- the wide metal strip is slit at the slitting portion in the heated state between a first cutting blade and a second cutting blade disposed opposite to the first cutting blade.
A method for manufacturing a metal foil for an electrolytic capacitor, comprising:
- supplying a solvent to a wide metal strip subjected to etching treatment to fill an etched portion of the wide metal strip with the solvent;
- and
- slitting the wide metal strip filled with the solvent in the etched portion into a predetermined size between a cutting blade and a cutting blade receiving member disposed opposite to the cutting blade, wherein
- the wide metal strip is closely attached to the surface of the cutting blade receiving member with the solvent upon slitting.
A method for manufacturing a metal foil for an electrolytic capacitor, comprising:
- slitting a wide metal strip subjected to etching treatment into a predetermined size with a cutting blade, wherein
- an etched portion of the slitting portion of the wide metal strip to be brought into contact with the cutting blade is filled with a solvent upon slitting.
Dependencies are inferred from the claim text.