Corrosion on tooling from water cooling systems
I am looking for a better understanding and comments of corrosion on cores. Background: we have cylindrical cores that due to size and geometry tolerances, we don't make from stainless. Instead we use tool steel and nickel plate them. Recently, we have experienced corrosion on one month old tool. It is sufficient to penetrate and lift up the plating. The water is treated with corrosion inhibitors, ph is running 8.6 and water temperature is 180 F. Any thoughts and ideas would be appreciated.
here Chiu is right , this should solve the problem , if done properly.
Once plate and corrosion makes to o-ring channels, tool will leak and cores will have to be replaced. We have discussed about using heat exchange type thermolater. But oil really was on the list....50% glycol was discussed. But I couldn't discuss interms of corrosion as I have only seen it used to avoid deposits n scales.