铝件面积大 ，在氧化槽内摆动过大 ，边缘和中心部位与溶液的接触、更新、互换有很大的区别 ，从而导致氧化膜色彩不一。
解决步骤：
氧化时工件摆动的幅度要幼 ，静处置也能够 ，但当溶液温度过低时容易出现地图状花斑 ，显得不天然。
用镀锌铁丝绑扎氧化件。
解决步骤：
铁丝使用前必须先退除锌层。
Sandblasting conductive oxidation mechanical CNC precision machining,
The surface of the piece is large and moves greatly in the gasification tank, resulting in significant differences in contact, renewal, and exchange with the solution at the edges and center, leading to inconsistent colors of the oxide film.
resolvent:
The amplitude of workpiece oscillation during oxidation should be small, and static treatment can also be used. However, when the solution temperature is too low, map like flower spots are prone to appear, which appear unnatural.
Tie the oxidized parts with galvanized iron wire.
resolvent:
The zinc layer must be removed before using the wire.
