Precious Metal Electroplating Anodes

Insoluble anode for electroplating is a coating of noble metal oxides with high electrochemical catalytic properties on a titanium substrate (mesh, plate, strip, tube, etc.) containing highly stable valve metal oxides.

Principle of operation.

In all plating fields, all principles are basically the same. The desired plated metal is dissolved in the electrolyte, the plated metal substrate is used as the negative electrode, and the anode is used as the positive electrode, i.e. a complete current transfer cycle is formed. The chemical reaction that occurs simultaneously with plating in the plating bath is the precipitation of oxygen on the surface of the anode. For example copper-nickel plating; decorative plating (trivalent chromium plating, jewelry, glasses, household hardware plating); hanging and barrel plating processes for different applications; electroforming (dental products, contact bushings and styli, etc.); hard chromium plating; special plating; electrophoretic coating; white tin copper plating, etc.

Advantages.

1. low tank voltage and low energy consumption.

2. low rate of electrode loss and dimensional stability.

3. good corrosion resistance of electrodes, less anode integration into the transition solution, keeping the transition solution clean, making the performance of plating more reliable.

4. new material and structure of titanium anode, which greatly reduces its weight and facilitates daily operation.

5. long service life and reusable substrate, saving cost.

6. oxygen separation overpotential is lower than that of lead alloy insoluble anode by about 0.5V, which reduces the tank voltage and energy consumption.

Application:

1、Precious metal plating (gold, silver, rhodium, palladium).

2、PCB board plating.

3、Hexavalent chromium plating.

4、Trivalent chromium plating.

5、Steel plate tin plating, steel plate galvanizing.

6, copper, nickel and other metal plating.

 Quality checks:

Accelerated Life Test, Coating Thickness Test,Coating composition test，Conduct electricity conductivity testing ，

Surface roughness test, Helium Leak Detection Test, Contact Resistance Test, Electrochemical Performance Test and other test.

JOINTING R&D

Improving current efficiency and prolonging service life are the core technical indicators of DSA titanium electrodes. Different industries have different requirements for the performance of titanium electrodes. Even if the same industry uses the same system of electrocatalytic coatings for different electrolytes, it may not be possible. Bring the ideal use effect. Based on years of accumulated R&D and production experience and a high-level technical team, the company can tailor a coating system that meets its own production environment for target customers to meet the differentiated needs of different industries or different customers in the same industry.

Development of electrode materials for high chlorine evolution efficiency and long life. Development of electrode materials for high acidity and long life oxygen evolution. Development of new electrode materials for mixed acid systems.

Development of high-oxygen ultra-base metal electrode materials Development of electrode materials in special fields