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  1. MatthewPatterson

    Dis-colouration on Chromic Acid Anodized Parts

    Normal piece exhibited Cu. Content of .917/.927%. Dark area exhibited Cu. Content of 1.04/1.05%. Information was obtained using an XRF.
  2. MatthewPatterson

    Dis-colouration on Chromic Acid Anodized Parts

    There is an alkaline clean in Ridoline 53 just before heat treat to T6 condition. Then LPI, vapour blast with wet 180 grit aluminum oxide then the anodic coating is applied.
  3. MatthewPatterson

    Dis-colouration on Chromic Acid Anodized Parts

    Hello all, My name is Matthew Patterson, a manufacturing planner in aerospace and a first time poster on this forum and so far I am impressed through the readings of other threads the diversity on this website. So I'm going to try my luck here today! I'll give you what I'm working with...
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