Corrosion method of anode foil for stroboscopic lamp capacitor

• Main Authors: FANG MINGQING, HE FENGRONG
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2019
• Subjects: APPARATUS THEREFOR; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTRICITY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS

The invention provides a corrosion method of an anode foil for a stroboscopic lamp capacitor. The corrosion method comprises the steps of pretreatment, primary direct current electrolytic pitting corrosion, secondary direct current electrolytic pitting corrosion, tertiary direct current electrolytic expanding corrosion and post-treatment. According to the method, corrosion foil with tunnel holes with two lengths is prepared by adopting the two stages of direct current electrolytic pitting corrosion processes and one stage of direct current electrolytic expanding corrosion process, so that themechanical strength and the service life of the corrosion foil subjected to formation are ensured. 本发明提供一种频闪灯电容器用阳极箔的腐蚀方法，包括：前处理、一级直流电解发孔腐蚀、二级直流电解发孔腐蚀、三级直流电解扩孔腐蚀和后处理。本发明通过采用两级发孔和一级扩孔直流电解腐蚀工艺，制备了具有两种长度隧道孔的腐蚀箔，保证了腐蚀箔化成后的机械强度和使用寿命。