Does anyone have any knowledge about using PWM in this process?
The long version
Electrolytic rust removal is a form of reverse electroplating. Rust is pulled from the part to be cleaned and deposited on sacrificial anodes. When the rust is gone the process stops. It generally takes at least 24 hours to derust a part.
If one pushes too much current (power) through the electrolyte it heats up and the parts absorb hydrogen and become brittle. I am wondering what would happen if one used PWM to keep the average power level the same but at an increased voltage. This has been studied for electro plating but I have not seen mention of it for this process.
The basic process is described numerous times on the web.
The long version
Electrolytic rust removal is a form of reverse electroplating. Rust is pulled from the part to be cleaned and deposited on sacrificial anodes. When the rust is gone the process stops. It generally takes at least 24 hours to derust a part.
If one pushes too much current (power) through the electrolyte it heats up and the parts absorb hydrogen and become brittle. I am wondering what would happen if one used PWM to keep the average power level the same but at an increased voltage. This has been studied for electro plating but I have not seen mention of it for this process.
The basic process is described numerous times on the web.