Brief description of titanium anode

The titanium anode(MMO) is made of precious metal germanium salt coated with titanium substrate material and sintered at high temperatures. It is widely used in electroplating(deep holes in the circuit board industry require electroplating copper, electroplating), electrolysis, and other hydrometallurgical behaviors. The preparation and application of electrodes are quite mature. Compared with the traditional platinum plating electrode in the alkaline copper plating process, the titanium anode has advantages that platinum plating electrodes can not compare:
1, technical characteristics
High current efficiency, excellent antibacterial corrosion performance; Electrodes have a long service life; Can withstand higher current density, running current density; <UNK> 1000A / M2 belongs to the oxygenated anode based on industrial pure titanium
2, high catalytic activity
It is well known that the platinum plating electrode is an electrode with a high peroxidation potential(1.563 V, relative mercuric sulfate), while the MMO anode is an hypoxic perpotential(1.385 V relative mercuric sulfate) electrode, which is easier to analyze in the anode oxygen zone. Oxygen. Therefore, during electrolysis, the tank pressure is also relatively low, which saves electricity. This phenomenon is evident in the alkaline treatment of alkaline copper plating walls after copper foil treatment.
3, pollution-free MMO
The anode coating is a ceramic oxide of precious metals, which is a fairly stable oxide, almost insoluble in any acid and base, and the oxide coating is about 20-40um, and the overall coating oxide is less. Therefore, the MMO anode does not pollute the plating solution, which is basically the same as the platinum plating electrode.
4, high value for money
The same service life of platinum plating electrodes(3.5 mm coating thickness) has been maintained. The price of MMO anodes is about 80 <UNK> of platinum plating electrodes. MMO electrodes have better electrochemical stability in alkaline electroplating copper electrolytes, and they have excellent electrolysis. Activity and durability. From the analysis of the cost of the MMO anode and PT electrode, it is obvious that the MMO electrode is economical.
5, because the application of copper in the printed circuit board requires the use of pulse cycle reverse(PPR) technology, we know that the use of platinum-plated insoluble anodes is prohibited(the oxide in the electrolyte of sulfuric acid is present in this current ring, and the platinum layer will peel after a period of time). However, the use of a dimensionally-stable anode can avoid this phenomenon and can successfully achieve performance advantages in this application.
6, the least anode maintenance. There is no need to stop the production line to clean and replenish the anode, replace the anode bag, and re-coating the anode(higher productivity, lower labor costs);
7,The lifetime of the insoluble anode depends on the type of working current density and the contact with various electroplating chemicals.
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