The process for anodising and colouring LF5 aluminium material by changing direction of the pulse in the 15% electrodyte of Sulphuric acid and nickel sulphate is discussed.

• 介绍在15%25的硫酸加硫酸镍电解液中，采用脉冲换向对LF5铝材进行氧化着色工艺，所获得的氧化膜性能、成膜速度、着色效果均明显优于脉冲非换向氧化着色工艺。