Ir-Ta Coated Titanium Rod Anode for Electroplating
Coating: Iridium-Tantalum Mixed Metal Oxide (Ir-Ta MMO)
Coating Structure: Dense and highly conductive catalytic layer
Custom made: Rod (Standard), Plate, Mesh, Tube, and Customed
Expected Lifespan: Engineered for reliable endurance in continuous service
Advantage:
High electrocatalytic activity
Strong corrosion resistance
Long service life
Dimensionally stable
Ir-Ta Coated Titanium Rod Anode for Electroplating
In precision electroplating and the surface treatment of complex geometric workpieces, rod-shaped anodes are a key choice for many specialized electroplating processes due to their flexible spatial arrangement and excellent current distribution characteristics. Our Ir-Ta Coated Titanium Rod Anode for Electroplating at Baoji City ShenAo Metal Materials Co., Ltd. is designed specifically for applications requiring spatial adaptability and uniform current distribution in various electroplating processes. It uses Grade 1 or Grade 2 pure titanium rod as the substrate, with an iridium-tantalum mixed metal oxide catalytic coating on the surface. The coating maintains stable oxygen evolution catalytic activity in acidic plating baths, providing uniform current radiation around the workpiece and adapting to the electroplating requirements of holes, recesses, and irregularly shaped parts. The anode maintains a stable chemical state during operation, generates minimal sludge, and minimizes the risk of bath contamination, making it suitable for precious metal electroplating, chromium plating, nickel plating, and precision electroplating of electronic components.
This product is for B2B Industrial Use Only. Operators should follow relevant chemical safety protocols and electroplating operation standards.
Technical Specifications
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Substrate Material |
Grade 1/2 Pure Titanium Rod |
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Coating Type |
Iridium-Tantalum Mixed Metal Oxide (IrO₂-Ta₂O₅) |
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Coating Thickness |
5–20 μm (adjusted based on current density and bath acidity) |
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Coating Loading |
10–200 g/m² (customized for rated current density) |
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Current Density Range |
100–2,000 A/m² (adjusted based on plating type and rack design) |
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Operating Voltage Window |
0.5 V–3.0 V (typical electroplating oxygen evolution potential range) |
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Rod Diameter |
Φ6mm–Φ50mm (common), other specifications available upon request |
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Applicable Baths |
Chromium plating baths, acidic nickel plating baths, precious metal plating baths, anodizing solutions |
Why Choose Our Titanium Anodes?
- Rod Configuration Optimized for Current Distribution on Complex Workpieces
For challenging electroplating applications such as deep-hole interiors, recesses, and irregularly shaped parts, the current lines from plate anodes struggle to uniformly cover all surfaces to be plated. Titanium rod anodes can be flexibly inserted into workpiece interiors or arranged around the workpiece periphery, forming a multi-dimensional current radiation field that ensures power lines reach all areas of the workpiece evenly. In precious metal electroplating, the efficient use of space by rod-shaped anodes also helps reduce precious metal raw material losses. - Exceptional Durability of Iridium-Tantalum Coating in Strong Acid Baths
Chromium plating baths and acidic nickel plating baths are both strongly acidic systems, placing stringent demands on the chemical stability and structural integrity of the anode. Our iridium-tantalum coating exhibits a very low corrosion rate under strongly acidic, high-potential conditions, maintaining coating structural integrity during long-term immersion and continuous electroplating operation, without significant activity decay or substrate exposure caused by sustained attack from the acidic medium. - Insoluble Anode Significantly Reducing Bath Contamination
Traditional soluble metal anodes introduce impurity elements and generate anode sludge during dissolution, affecting deposit quality and bath life. Our titanium rod anode operates as an insoluble anode without self-dissolution, generates minimal sludge, and minimizes the risk of bath contamination, contributing to extended bath maintenance intervals and improved first-pass yield of plated parts. - Flexible Customization Solutions for Different Plating Lines
We can customize the diameter, length, coated section distribution, and end connection method of titanium rod anodes based on your tank dimensions, workpiece shape, and rack arrangement. Common connection methods include threaded connectors, flanged connections, and titanium core welded lead-outs. For installations requiring sealed penetration through the tank wall, encapsulation solutions with PTFE or other sealing materials can be provided.
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Real-World Applications
- Hard Chrome and Functional Electroplating: Used in hard chrome plating lines for wear-resistant workpieces such as hydraulic cylinders, piston rods, molds, and rollers, where rod anodes can be inserted into cylinder bores or arranged around shaft-type workpieces to ensure uniform chromium deposit on interior and irregular surfaces.
- Precious Metal and Precision Electroplating: Used for gold, silver, rhodium, and other precious metal electroplating of electronic connectors, semiconductor packaging substrates, and precision instrument components, where the flexible arrangement of rod anodes in small-dimension plating tanks helps improve the thickness uniformity and utilization of precious metal deposits.
- Electronic Component Manufacturing: Used as auxiliary anodes in lead frame, connector, and PCB plating lines, where the rod configuration allows flexible placement at specific positions on continuous plating lines to provide stable current supplementation for fast-moving workpieces.
- Anodizing and Surface Treatment: Used in the anodizing of aluminum and titanium alloys, where rod anodes can be inserted into tubular or cavity-type workpieces to achieve uniform oxide film growth in complex internal cavities in conjunction with external cathode systems.
The ShenAo Advantage
18 Years of Fabricating Excellence
Since 2008, we've specialized in valuable metal coated titanium anodes from our office in Baoji's "China Titanium Valley." Our develop bimetallic hazardous welding innovation and progressed coating forms provide items you can trust.
Customization for Your Correct Needs
Every generation line is diverse. We give custom fitted arrangements coordinating your particular current thickness necessities, electrolyte composition, and operational parameters. Whether you require little bunch testing or full-scale generation amounts, we convey on time.
Cost-Effective Lifecycle Management
When coating exhaustion happens, you do not dispose of the whole anode. Our proficient recoating benefit strips the ancient oxide layer, sandblasts the substrate, and reapplies new MMO coating. This expands resource life and decreases your add up to taken a toll of proprietorship considerably.
Frequently Asked Questions
Q: What are the main differences between rod anodes and plate anodes in electroplating?
A: The primary advantages of rod anodes lie in their spatial flexibility and multi-dimensional current distribution. For deep-hole interiors, recesses, and irregular workpieces, current from plate anodes struggles to achieve uniform coverage, whereas rod anodes can be inserted into workpiece interiors or arranged around the workpiece, forming a more uniform current radiation field. Additionally, the circular cross-section of rod anodes helps reduce localized current concentration caused by edge effects, which is particularly evident in small-dimension precision electroplating.
Q: How are the coated section and bare titanium section of the titanium rod anode divided?
A: The coated section is the active working portion immersed in the plating bath, with its length back-calculated from the anode area you require and the rod diameter. The bare titanium section is typically located at the upper part of the anode for conductive connection and mounting. For deep-hole interior plating, probe-type anodes with coating only at the rod tip can be customized. Simply provide your operating current, tank dimensions, and workpiece shape, and we can recommend a suitable rod diameter and section lengths.
Q: Are iridium-tantalum coated titanium rod anodes suitable for use in chloride-containing plating baths?
A: Iridium-tantalum coatings exhibit good chemical stability in both strongly acidic and chloride-containing environments, making them suitable for acidic chloride plating baths. However, if the chloride ion concentration in the bath is high and the chlorine evolution reaction is predominant, ruthenium-iridium coatings may be considered for better chlorine evolution activity. You can provide your bath formulation and process parameters, and our engineers will recommend a matched coating solution.
Q: How should titanium rod anodes be handled when the coating reaches the end of its service life?
A: The titanium rod substrate remains stable in the electroplating environment. The old coating can be chemically stripped, and once the substrate passes inspection, it can be recoated to restore performance to new-anode levels. We offer a full-service process including incoming inspection of used anodes, coating stripping, substrate treatment, and recoating.
Contact Us
You need a partner who not only supplies products but also solves your challenges alongside you. Our team is ready to engage with your inquiries and provide a tailored solution. Share your specific needs or key requirements with us today, and let us help you efficiently transform your breakthroughs into commercial value.
Titanium Anode Manufacturer
Email: zh@baojiti.com.cn
WhatsApp: +86-15877696471 (updated)
Products: Titanium Anodes, MMO Titanium Anodes, DSA Coated Titanium Electrodes, Electrolysis Electrodes, Hydrogen Production Electrodes, Wastewater Treatment Titanium Anodes.
