金属在磷化液中出现锈迹怎么解决

锈迹多处在死角处
2025-03-30 20:26:15
推荐回答(4个)
回答1:

正常情况金属渍泡在磷化液中是不会出现锈迹的,因为磷化液本身可以除锈,如果是磷化后生锈,那有如下几个原因:
磷化液浓度低,成膜薄,或成膜不完整。
磷化液使用时间太长,带进的酸根离子多。
工件磷化后环境温度高湿度大。
前道表调剂效果差。
除油没有除干净。

回答2:

问题很奇怪!磷酸是有一定的除锈效果的,所以在磷化液中有三氧化二铁有些不靠谱。如果说磷化液中有类是红色锈状的东西还是可以理解的。

回答3:

你采用的是那种磷化工艺?是冷磷化、中温磷化还是高温磷化?估计是硝酸根含量不足有关,分析一下磷化液看看,必要时添加硝酸锌。另外应该加强搅拌。

回答4:

积气、积水、干燥速度慢是你目前的症结所在。青岛恒信达化工有限公司

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