The so-called cathodicization problem refers to the problem that during the use of titanium anodes, due to the influence of adjacent anodes, the anode cannot normally undergo anodic reaction and instead occurs cathodic reaction (usually occurs at the edge of the anode). The root cause of cathodicization problems is the high voltage difference between adjacent anodes.
Cathode problems usually occur on continuous lines, and not only in PCB copper plating equipment. The main reasons are the following possibilities: inappropriate current setting (the product requires a gradient setting current, and the large difference in voltage caused by the large difference between adjacent currents), aging or damage of the rectifier, lack of shielding, etc.
After the cathodicization of the anode, it does not mean that the anode will always be in the cathodic reaction. This is because when the anode is cathodicized, copper ions are deposited on the surface of the anode, so that the surface of the anode is plated with a thin layer of copper. At this time, when the current is conducted to the anode surface through the titanium anode, the copper on this part of the anode surface will be dissolved (the reason is that in this case, the titanium anode is equivalent to transforming into a soluble anode in a short time). When cathodicization occurs at the anode, this actual cathodic reaction occurs periodically. In this way, the anode state has been switched back and forth between the anodic reaction and the cathodic reaction. Since the design of the anodic coating is aimed at the anodic reaction, the anodic coating of normal products cannot cope with the cathodic reaction. Cathodicization problems can significantly reduce anode life.
Contact us for more information. Thank you
Nicole
Company: Baoji Jimiyun Dynamic Co., Ltd
Cuntry:China
Add:Baoti road,Jintai,Baoji city,Shaanxi,China
Cel:+86 13369210920
Gmail:nicole@jmyunti.com
Website:www.jm-titanium.com
