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    • 6. 发明公开
    • RESIN-COATED ALUMINUM ALLOY SHEET MATERIAL FOR ALUMINUM ELECTROLYTIC CAPACITOR CASE, CASE FOR ALUMINUM ELECTROLYTIC CAPACITOR, AND ALUMINUM ELECTROLYTIC CAPACITOR
    • 树脂包覆铝合金层材料电解铝电容器,住房铝电解电容器,电解铝电容器柜
    • EP2090426A1
    • 2009-08-19
    • EP08703103.5
    • 2008-01-11
    • Furukawa-Sky Aluminum Corporation
    • KATO, OsamuMAEZONO, ToshikiSAITO, Masatsugu
    • B32B15/08B32B15/092C09D123/04C09D163/00C09D167/00C09D191/06H01G9/08
    • C09D167/00C08G59/4021C08L23/04C08L91/06C09D163/00C09D175/06H01G9/08Y10T428/254
    • A resin-coated aluminum alloy sheet material for an aluminum electrolytic capacitor case has a superior formability even when being formed into an aluminum electrolytic capacitor case having a large height/diameter ratio, using a volatile press oil.
      A resin layer contains wax composed of at least one of polyethylene wax and carnauba wax, and has a thickness falling within a range from at least 2 µm to at most 22 µm. A total of lengths of wax particles, defined when the wax particles are cut along a straight line of 100 µm optionally drawn on the surface of the resin layer, is at least 10 µm. A number of the wax particles, featured by a cross-sectional shape having a size of at most 80 % of the thickness of the resin layer and of at least 0.1 µm, is from at least 3 to at most 50. A number of the wax particles, featured by a cross-sectional shape featured by a major axis extent having a size of more than 80 % of the thickness of the resin layer is less than 10. Although the resin-coated aluminum alloy sheet material is formed into an aluminum electrolytic capacitor case having a large height/diameter ratio, cracks and peelings do not occur in the resin layer.
    • 在铝电解电容器的情况下的树脂被覆铝合金板材料具有良好的加工性,即使在形成为在铝电解电容器的情况下具有大的高度/直径比,使用挥发性冲压油。 的树脂层中含有蜡聚乙烯蜡和巴西棕榈蜡中的至少一种构成的,并且具有厚度落入的范围内的至少2微米至至多22微米。 共蜡颗粒的长度,定义当蜡颗粒沿着所述树脂层的表面上绘制OPTIONALLY 100微米的直线切割,是至少10微米。 具有尺寸的树脂层和至少0.1微米的厚度的至多80%A号蜡粒子,由横截面形状特征,是从至少3到至多50.许多的 蜡颗粒,由具有尺寸的树脂层的厚度的80%以上的长轴程度特征的横截面形状特征是小于10。尽管树脂被覆铝合金板材料形成在铝上 具有大的高度/直径比电解电容器的情况下,裂纹,剥离等没有在树脂层好发。