Titanium Electrode for Electroplating

Electrode for Electroplating

There are two types of anodes in the electroplating field: soluble and insoluble. Early adoption of graphite anodes as soluble anodes. Graphite anode is a non-inert anode. It will dissolve graphite gradually during working and it cannot keep a stable anode-cathode distance. Currently, more electroplating plants use titanium electrodes. The titanium electrode for electroplating works as an insoluble anode, it does not dissolve, and will not contaminate the plating solution. Titanium electrode can keep stable anode-cathode distance during the service time as a kind of inert anode to ensure good quality of the final product and keep the voltage stable to reduce the power consumption. The titanium anode applies in electroplating offers mechanical stability and uniform current distribution.

Product Description

Titanium electrodes used in electroplating can be divided into different coating systems, mixed metal oxide coated type(Ti/MMO electrode), platinum coated type (Ti/Pt anode), platinum clad niobium coated type, lead dioxide coated type(Ti/PbO2 anode). They can be fabricated into various shapes like mesh, plate, rod, wire, etc.

Mixed metal oxide-coated titanium electrodes

Mixed metal oxide coated titanium electrodes for electroplating like hard chrome plating (piston rings, printing cylinders, etc.), precious and non-precious metal electroplating (Gold, Ruthenium, Rhodium, Palladium), electronics and semiconductor industry, high-speed electro galvanizing, trivalent chromium plating, PCB reverse pulse copper plating, horizontal electroplating, copper plating of printed circuit boards, etc.

Platinum-coated titanium electrode for electroplating has the best catalytic properties because of platinum group elements, big exchanged current density on the electrode surface, low oxygen evolution potential, and an oxide film with a microstructure that is treated by a special technique on the titanium surface, the great active area is gained on the electrode surface, this kind of platized titanium anode is considered to be the most suitable anode for electroplating under big current density with high speed.

Lead dioxide-coated titanium electrode

Except for titanium anode and graphite, there are also electroplating plants using lead anode. However, the reactants will have a negative impact on the environment due to lead dissolution. It with high oxygen evolution potential could make power consumption reduced for its low working voltage.Another advantage of titanium electrodes for electroplating is titanium's reusability. When the coating fails to work, recoating on the well-preserved titanium substrate after sandblasting and acid pickling treatment will make it reused without paying more cost for titanium substrate.

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