High-specific capacity alloy foil and producing mehtod thereof

• Main Authors: BAOWEI MA, YAN LIANG, TAO WANG
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2004
• Edition: 7
• Subjects: ALLOYS; BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMISTRY; ELECTRICITY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; TREATMENT OF ALLOYS OR NON-FERROUS METALS

High specific capacitance alloy foil and its manufacture are disclosed. This invention relates to an aluminum alloy containing Cu 0.2 - 0.25, Mg 0.04 - 0.06, Zn 0.20, Mn 0.1 - 0.4, Fe 0.8 - 1.0, Si 1.0, Ti 0.2, and Al 100 by weight. It is melted, forged, homogenized at 600 deg.C, rolled at 500 deg.C into thick rolls, cold rolled and inter-annealed at 380 - 420 deg.C, finally rolled to be foils with thickness of 0.04 - 0.05 mm. The foils have ideal corrosion speeds to form uniform porous corrosive surface with specific capacitance of 370 - 430 Ufcm in specified conditions. 高比电容合金箔及其生产方法，本发明涉及的是一种铝基合金及其生产方法，合金成分重量份数比为：Cu0.2-0.25、Mg0.04-0.06、Zn0.20、Mn0.1-0.4、Fe0.8-1.0、Si1.0、Ti0.2、Al100，配制原料，进行锻造，在600℃进行均化处理，在500℃下进行热轧成厚卷，再冷轧然后进行中间退火处理，中间退火温度控制在380-420℃，最终轧成0.04-0.05mm厚的箔材。采用本发明的方法制造的产品具有理想的腐蚀速度，在规定的条件下，能形成均匀的多孔腐蚀表面，比电容可达370-430Ufcm。