涂装前锌铁合金层的磷化处理工艺

Zinc-Iron Alloy Surface Preparation Process

锌铁合金镀后的磷化处理，能生成一种稳定的保护膜，可抑制其表面活化性，能提高涂层与基体镀层的结合力，是钢铁涂装的最佳选择。本文介绍了适合于电镀锌铁合金后的直接磷化工艺，讨论了酸比值参数对磷化膜质量的影响，并指出工艺的可行性已为生产所验证。

A stable protective film formed after parkerizing process for zinc-iron alloy and the film that can stop its surfactant property and improve the cementing property and it is the best method for steel andiron coating. This process and acid value impacting on the film quality are discussed in the paper.