Titanium Anode for Continuous Steel Strip Electro-Galvanizing
Coating: Mixed Metal Oxide (MMO)
Coating Structure: Dense and highly conductive catalytic layer
Custom made: Plate (Standard), Mesh, and Customed
Expected Lifespan: Designed for sustained performance over prolonged operational cycles
Advantage:
High electrocatalytic activity
Strong corrosion resistance
Long service life
Dimensionally stable
Titanium Anode for Continuous Steel Strip Electro-Galvanizing
On continuous steel strip electro-galvanizing lines, the dimensional stability, current distribution uniformity, and durability of the anode have a decisive influence on coating quality and line operating efficiency. Our Titanium Anode for Continuous Steel Strip Electro-Galvanizing at Baoji City ShenAo Metal Materials Co., Ltd. is designed specifically for the efficient and stable operation of high-speed continuous electro-galvanizing lines. It uses Grade 1 or Grade 2 pure titanium as the substrate, with an iridium-based mixed metal oxide catalytic coating on the surface. The coating maintains stable oxygen evolution catalytic activity in sulfate-based or chloride-based acidic zinc plating solutions, providing uniform current distribution across steel strip surfaces several meters wide. The anode maintains dimensional stability during operation, generates minimal sludge, and minimizes the risk of bath contamination, making it suitable for the high-speed continuous electroplating of automotive, appliance, and construction-grade galvanized steel strip, serving as a reliable electrode solution for ensuring coating uniformity and long-term stable line operation.
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 |
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Coating Type |
Iridium-based (IrO₂) or Iridium-Tantalum (IrO₂-Ta₂O₅), customized per bath system |
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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 |
500–3,000 A/m² (adjusted based on line speed and coating specifications) |
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Operating Voltage Window |
0.5 V–2.5 V (typical electro-galvanizing potential range) |
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Anode Shapes |
Plate, Curved Plate, Mesh, Custom |
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Applicable Baths |
Sulfate-based zinc plating solutions, chloride-based zinc plating solutions, zinc-nickel alloy plating solutions |
Why Choose Our Titanium Anodes?
- Uniform Current Distribution Across Large Surface Areas
Steel strip widths on continuous electro-galvanizing lines can exceed 2 meters, requiring the anode to provide uniform current density across the full width. Our anode plates are specially designed with a dense and uniform coating micro-conductive network, combined with precision fabrication of large-format titanium plates and multi-point bus bar connection design, ensuring current distribution deviation is controlled within a narrow range across the full anode surface, providing the foundation for uniform zinc coating thickness on the steel strip surface. - Long-Term Dimensional Stability in Acidic Zinc Plating Baths
Both sulfate-based and chloride-based zinc plating solutions are acidic systems, placing high demands on the chemical stability and mechanical strength of the anode. Our iridium-based coating forms a sound metallurgical bond with the titanium substrate, resisting coating spalling or substrate deformation during long-term operation, maintaining stable electrode spacing and current distribution. Compared to soluble zinc anodes, titanium anodes eliminate the need for frequent replacement and gap adjustment, reducing line downtime for maintenance and associated labor costs. - Significantly Reducing Anode Sludge Generation
Traditional soluble zinc anodes generate zinc dross and anode sludge during dissolution, contaminating the bath and causing zinc nodules and pitting on the steel strip surface. Our titanium anode operates as an insoluble anode without self-dissolution, significantly reducing anode sludge generation, contributing to lower bath filtration frequency and surface defect rates, and improving the surface quality and first-pass yield of galvanized steel strip. - Proven Solutions for High-Speed Continuous Lines
We can supply flat plate, curved plate, and mesh anodes, compatible with horizontal, vertical, and curved cell configurations. Based on your line speed, tank dimensions, and bus bar layout, anode dimensions, mounting interfaces, and conductive connection methods can be customized to achieve seamless compatibility and convenient replacement with existing continuous electro-galvanizing lines. For line retrofit projects, titanium anodes can be designed to fit within the installation envelope of the original soluble anodes.
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Real-World Applications
- Electroplating and Surface Treatment: Used in continuous electro-galvanizing lines for automotive, appliance, and construction-grade galvanized steel strip, covering the electrodeposition of pure zinc and zinc-nickel alloy coatings, providing stable current supply and long-term dimensional reliability for high-speed continuous galvanizing lines.
- Hydrometallurgy and Metal Recovery: Used for the electrolytic recovery of zinc metal from zinc-containing waste solutions and electro-galvanizing line rinse water, assisting zinc electrowinning through insoluble anodes to achieve zinc resource recycling.
- Industrial Wastewater Treatment: Used for the electrolytic treatment of zinc-containing wastewater from electro-galvanizing lines and bath purification, decomposing aged organic additive by-products in the bath through anodic oxidation to extend bath service life.
- Water Treatment and Disinfection: Used for biocide and algae control treatment in circulating cooling water and cleaning water systems associated with electro-galvanizing lines, controlling microbial growth through online electrolytic chlorination to safeguard process water quality.
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: How are zinc ions replenished in the bath after replacing soluble zinc anodes with titanium anodes?
A: After adopting titanium anodes, zinc ions in the bath are replenished through an external zinc dissolution tank or by directly adding zinc salts (such as zinc sulfate or zinc chloride). The zinc dissolution tank uses chemical dissolution or an independent electrolytic dissolution unit to dissolve high-purity zinc ingots, which are then fed into the circulating bath system. This approach enables independent and precise control of zinc ion concentration in the bath, avoiding current efficiency fluctuations caused by uneven dissolution of soluble anodes.
Q: What is the difference in coating selection between sulfate-based and chloride-based zinc plating systems?
A: Sulfate-based systems have a higher proportion of oxygen evolution, typically using iridium-tantalum coatings to ensure chemical stability under strong acid and oxygen evolution conditions. Chloride-based systems contain chloride ions and can use iridium-based coatings that balance oxygen evolution activity with a degree of chlorine evolution tolerance. If your line uses a zinc-nickel alloy process or other specialized bath formulations, you can provide the bath composition and operating parameters for our evaluation.
Q: How is the flatness of large-format anode plates ensured?
A: The flatness of large anode plates is critical for maintaining consistent electrode spacing. We use leveled pure titanium sheets as the base material and control thermal deformation during the coating process through specialized fixtures. Finished anode plates undergo flatness inspection before shipment to ensure deformation across the full dimensions is controlled within the tolerances agreed upon in the contract. For extra-long or extra-wide anode plates, stiffening ribs or segmented assembly designs can be implemented to ensure overall flatness.
Q: How should anodes be handled when the coating reaches the end of its service life?
A: The titanium substrate remains stable in the electro-galvanizing 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. For large-format anode plates, the recoating solution can yield meaningful long-term savings compared to purchasing entirely new anodes. 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.
