Aluminum sheet material for lithographic printing plates
    2.
    发明申请
    Aluminum sheet material for lithographic printing plates 有权
    用于平版印刷版的铝片材

    公开(公告)号:US20110039092A1

    公开(公告)日:2011-02-17

    申请号:US12802742

    申请日:2010-06-11

    IPC分类号: B32B5/16

    摘要: An aluminum sheet material for lithographic printing plates wherein the number of aluminum carbide particles having a circle equivalent diameter measured by the PoDFA method of 3 μm or more is four or less, the number of aluminum carbide particles having a circle equivalent diameter measured by the PoDFA method of 3 μm or more being measured by melting 3000 g of the aluminum sheet material in a crucible disposed in an electric furnace, filtering 2000 g of the molten metal through a dedicated filter, allowing 1000 g of the molten metal remaining on the filter to solidify, and measuring the number of aluminum carbide particles contained in inclusions in the molten metal deposited on the upper surface of the filter by observing a vertical section (14 mm×10 mm) of the solidified metal including the diameter (14 mm) of the filter in the center area of the filter up to a height of 10 mm above the filter using a microscope.

    摘要翻译: 一种用于平版印刷版的铝板材,其中通过PoDFA法测量的3μm以上的圆当量直径的碳化铝颗粒的数量为4个以下,由PoDFA测量的圆当量直径的碳化铝颗粒的数量 通过在设置在电炉中的坩埚中将3000g铝片材熔化,通过专用过滤器过滤2000g熔融金属,允许1000g剩余在过滤器上的熔融金属,从而测量3μm以上的方法 固化,并且通过观察包括直径(14mm)的固化金属的垂直截面(14mm×10mm),测量沉积在过滤器的上表面上的熔融金属中的夹杂物中所含的碳化铝颗粒的数量 使用显微镜将过滤器的中心区域过滤至过滤器上方10 mm的高度。