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公开(公告)号：US4279715A
公开(公告)日：1981-07-21
申请号：US187271
申请日：1980-09-15
摘要： Aluminum electrolytic capacitor foil is etched in a bath containing 1.0 to 1.8 M hydrochloric acid, 0.25 to 0.5 M aluminum chloride, 0.2 to 1.0 M phosphoric acid, and 1.0 to 2.0 M chromium trioxide while subjected to the action of alternating current at 35.degree. to 55.degree. C.
摘要翻译： 在包含1.0至1.8M盐酸，0.25至0.5M氯化铝，0.2至1.0M磷酸和1.0至2.0M三氧化铬的浴中，将铝电解电容器箔蚀刻，同时在35℃至 55℃
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公开(公告)号：US4470885A
公开(公告)日：1984-09-11
申请号：US464226
申请日：1983-02-07
摘要： Aluminum electrolytic capacitor foil is treated after etching but before anodizing by first contacting it with a phosphate solution and then heat treating for 30 to 90 seconds to form a thermal oxide layer of controlled thickness. On subsequent anodization, the thermal oxide layer modifies the barrier oxide layer increasing its dielectric strength and hence capacitance and also stabilizes the barrier oxide layer.
摘要翻译： 铝电解电容器箔经蚀刻处理，但在阳极氧化之前，首先将其与磷酸盐溶液接触，然后热处理30至90秒以形成受控厚度的热氧化物层。 在随后的阳极氧化中，热氧化物层改变阻挡氧化物层增加其介电强度并因此增加电容，并且还使阻挡氧化物层稳定。
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公开(公告)号：US4146439A
公开(公告)日：1979-03-27
申请号：US905709
申请日：1978-05-15
申请人： John J. Randall, Jr.
发明人： John J. Randall, Jr.
CPC分类号： H01G9/0032 , C25D11/06
摘要： Current efficiency is increased in the anodization of aluminum foil for electrolytic capacitors by carrying out the anodization below 90.degree. C. in a non-aqueous ethylene glycol-ammonium pentaborate bath containing a small amount of an orthophosphate source, e.g., ammonium dihydrogen phosphate.
摘要翻译： 在含有少量正磷酸盐源（例如磷酸二氢铵）的非水乙二醇 - 五硼酸铵浴中进行阳极氧化低于90℃，对于电解电容器的铝箔的阳极氧化，电流效率提高。
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公开(公告)号：US4427506A
公开(公告)日：1984-01-24
申请号：US422931
申请日：1982-09-24
摘要： In the AC etching of aluminum foil in a hydrochloric acid electrolyte containing at least one additive, the presence of 200 to 500 ppm sulfate permits etching thicker foil for higher voltage use than is possible without the sulfate. The additive is chosen from phosphoric, nitric, and tartaric acids or salts. The presence of the relatively small amount of sulfate yields a foil with higher capacitance and generally allows lower temperatures and frequencies to be used.
摘要翻译： 在含有至少一种添加剂的盐酸电解质中的铝箔的AC蚀刻中，存在200-500ppm的硫酸盐允许在没有硫酸盐的情况下蚀刻较厚的箔以达到更高的电压使用。 添加剂选自磷酸，硝酸和酒石酸或盐。 相对少量的硫酸盐的存在产生具有较高电容的箔，并且通常允许使用较低的温度和频率。
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公开(公告)号：USRE31743E
公开(公告)日：1984-11-20
申请号：US294251
申请日：1981-08-19
摘要： Aluminum electrolytic capacitor foil is etched in a bath containing 0.7 to 2.0 M hydrochloric acid, 0.2 to 0.5 M hydrated aluminum trichloride, and 0.02 to 0.4 M phosphate ion while subjected to the action of alternating current at 35.degree. to 55.degree. C.
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公开(公告)号：US4204919A
公开(公告)日：1980-05-27
申请号：US35145
申请日：1979-05-02
摘要： Aluminum electrolytic capacitor foil is treated prior to anodization in a two-step process in which a hydrous oxide film is first formed on the foil and the hydrous oxide is then modified. In the first step the foil is immersed in boiling water to form an appropriate thickness of hydrous oxide and in the second step it is immersed in a boiling aqueous solution containing phosphate, silicate, or tartrate ions, or combinations thereof. This treatment results in a decreased power consumption during anodization and produces a film having higher film capacitance.
摘要翻译： 铝电解电容器箔在阳极氧化之前进行两步法处理，其中首先在箔上形成水合氧化物膜，然后修饰含水氧化物。 在第一步骤中，将箔浸入沸水中以形成适当厚度的氧化亚氮，并且在第二步骤中将其浸入含有磷酸盐，硅酸盐或酒石酸盐离子或其组合的沸腾水溶液中。 这种处理导致阳极氧化期间功率消耗降低并且产生具有更高膜电容的膜。
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7.发明授权Process for producing an aluminum electrolytic capacitor having a stable oxide film 失效具有稳定的氧化膜的铝电解电容器的制造方法
公开(公告)号：US4113579A
公开(公告)日：1978-09-12
申请号：US791656
申请日：1977-04-28
CPC分类号： H01G9/0032 , C25D11/12 , Y10S205/917
摘要： An electrolytic capacitor is provided with an electrode having a stable aluminum oxide dielectric by anodizing an aluminum foil in a process that includes depolarizing the foil in a bath containing a hydration inhibitor selected from tartrate or citrate or phosphate anions.
摘要翻译： 电解电容器具有通过在包含选自酒石酸盐或柠檬酸盐或磷酸盐阴离子的水合抑制剂的浴中使箔箔去极化的方法中对铝箔进行阳极化处理而具有稳定的氧化铝电介质的电极。
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公开(公告)号：US4279714A
公开(公告)日：1981-07-21
申请号：US187241
申请日：1980-09-15
摘要： Aluminum electrolytic capacitor foil is etched in a bath containing 0.7 to 2.O M hydrochloric acid, 0.2 to 0.5 M hydrated aluminum trichloride, and 0.02 to 0.4 M phosphate ion while subjected to the action of alternating current at 35 to 55.degree. C.
摘要翻译： 铝电解电容器箔在含有0.7-2.0M盐酸，0.2至0.5M水合三氯化铝和0.02至0.4M磷酸根离子的浴中进行蚀刻，同时在35至55℃下进行交流电流。
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公开(公告)号：US4159927A
公开(公告)日：1979-07-03
申请号：US810130
申请日：1977-06-27
CPC分类号： H01G9/0032 , C25D11/06
摘要： A dielectric oxide film is modified by the incorporation of a minor amount of carbonaceous material. The modified film is produced by anodizing an aluminum electrolytic capacitor anode in a conventional electrolyte containing a minor amount of an alpha- or ortho- hydroxy carboxylic acid or salt.
摘要翻译： 介电氧化膜通过掺入少量碳质材料而被改性。 通过在含有少量α-羟基或邻羟基羧酸或盐的常规电解质中阳极氧化铝电解电容器阳极来制备改性膜。
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