Industry Knowledge

TAIJIN is one of leading Electroplating Anode supplier in China
Aug 14, 2017

       Equipped with professional factory, Taijin Industrial is the biggest China manufacturer, supplier and producer of electroplating noble metal anode. Our company can offer you corrpro vendor electrolysis, electro-deposition, electrolytic deposition, acid copper, acid zinc at competitive price.


  1. Application areas: electro-galvanized, precious metal plating (including gold-plated, silver, palladium, etc.); electroplating hard chrome; electroplated nickel; tin plating (steel tin).

    2. Coating type: titanium-based ruthenium iridium titanium iridium tantalum titanium platinum

    3. Comparison with the superiority of lead anodes for conventional plating

1) Slot voltage is low and energy consumption is small

2) The rate of electrode loss is small and the dimensions are stable

3) electrode corrosion resistance is good, insoluble does not pollute the bath, so that the performance of the coating more reliable.

4) Titanium anodes are made of new materials and structures that greatly reduce their weight and facilitate routine operation

5) long life, and the substrate can be reused, cost savings

6) Oxygen overpotential than lead alloy insoluble anode low about 0.5V, so that the tank voltage decreases, reducing energy consumption.


5. Electrochemical performance and life test (reference standard HG / T2471-2007 Q / CLTN-2012)

name

Strengthen weight loss mg

 

Polarization rate

mv

 

Oxygen / chlorine potential

v

 

Test Condition

 

Titanium iridium tantalum

 

≤10

<40

<1.45

1mol/L H2SO4

 

Titanium ruthenium iridium

 

≤10

<40

<1.13

1mol/L H2SO4

 

Titanium based platinum

 

≤1

<40

<1.75

1mol/L H2SO4

 

 

     6. electroplating noble metal anode use background and description:

      In the field of electroplating applications, the desired coating 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., the complete current transfer cycle is formed. The chemical reaction occurring simultaneously with electroplating in the plating bath is the precipitation of oxygen on the anode surface.

         The advantage of a titanium anode compared to a non-inert anode such as graphite is that it maintains a stable distance between the positive and negative electrodes (the distance between the electrodes) within the service life. Graphite anode in the use will gradually dissolve, resulting in increased distance between the electrodes, while the inert titanium anode can guarantee a stable voltage and product quality. Due to the catalytic properties of the platinum group elements, the exchange current density on the surface of the electrode is large and the precipitation potential of the oxygen is low, and a special process is used to produce a fine oxide film on the titanium surface, and the area of the unit electrode is maximized Of the active surface area, it is particularly suitable for high-speed high current density of the plating production.

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      In addition to titanium anodes and graphite, lead anodes can also be used in this field. However, when the lead anodes dissolve, their reactants can have a negative impact on the environment. Such as the use of titanium anode these problems can be avoided. Oxygen titanium anode operating voltage is low, which can also play a role in saving energy.

      Another advantage of using titanium anodes is the reusable titanium substrate. When the titanium anode coating life to reach its use period Anodized aluminum foil is commonly used in the lithography industry, a material. The principle of its work and plating process, like a thin layer of metal covered in the base metal surface. By placing aluminum in the anode state, the surface of the aluminum is oxidized. After the anodizing (oxidation) process of aluminum, the surface energy of aluminum is better bonded to the photosensitive coating required in the lithographic industry.

      In the electroplating industry, the anode is used to electroplate a variety of substrates, from small batches of jewelery to continuous large-scale production of electroplated steel. The company's anode products helped to achieve the diversification of the electroplating matrix, while its diversification is also reflected in the diversification of the company's anode products.

        To get more information about electroplating noble metal anode,please send email to sales@tjanode.com 









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