MMO Ribbon Anode
THT MMO titanium anodes are widely utilized in various cathodic protection environments and exported worldwide.MMo ribbon anode normally assembles with titanium conductor bar and a resistance welder.
The titanium substrate is titanium plate strip or titanium mesh strip(after coating called MMO ribbon mesh anode) and is applied a layer of mixed precious metal oxides (such as Ir-Ru or Ir-Ta) then with excellent conductivity and corrosion resistance .The primary function of titanium anodes is to supply current in cathodic protection systems to prevent corrosion of metal structures, such as underground tank bottoms and reinforced concrete structures.
- Technical Specifications
- DateSheet
- Feature
| Substrate | Gr1 Titanium ASTM B265 |
| Coating | Ir–Ta mixed metal oxide
Ir–Ru Mixed Metal Oxide |
| Thermal expansion coefficient | 8.7×10-5 |
| Thermal conductivity (20°C) | 15.6 W/m·K |
| Electrical resistivity | 0.000056 ohm-cm |
| Tensile strength | ≥280 Mpa |
| Elongation at break | ≥10% |
| Enhanced Life Testing Standards | NACE TM0108-2012 |
| Enhanced life testing method | 1 mol Na2SO4 Current density :15000 A/m2 ＞72hours |
| Dimension(mm2) | 6.35×0.635 |
| Length Per Coil(m) | 152.5 |
| Weight Per Coil(kg) | 2.8 |
| Output Current(mA/m) | 17/42 |
| Lifespan(a) | 50 |
Long year expectation and higher current density we have special engineer team to design for your side.
THT MMO titanium anode ribbon character includes:
- The ribbon-shaped titanium anode is commonly made in a grid pattern.
- The anode is easy to cut, making it suitable for cathodic protection of tank bottoms of all sizes.
- Uniform current distribution.
- Easy installation.
- Excellent performance when used in reinforced concrete structures, with good bonding to the concrete.
- Adjustable spacing between anode ribbons to achieve the desired design life.
Working Principle
The external DC power source is connected to the MMO ribbon anode (acting as the positive electrode) and the protected metal structure (such as underground tank bottoms or reinforced concrete structures acting as the negative electrode). This connection allows the cathodic surface to generate a negative potential in the electrochemical reaction, preventing oxidation reactions and thus inhibiting corrosion. The anodic reaction occurring on the anode (titanium anode ribbon) leads to the oxidation of the anode material, typically a noble metal oxide coating. However, this consumption rate is usually low and uniform, not affect cathodic protection and keep long lifespan.
Application
- MMO mesh ribbon anode for underground tank bottom protection: In China, dozens of large oil storage tanks with capacities ranging from 50,000 to 100,000 cubic meters in Guangdong, Beijing, Ningbo, and other places are protected by mesh anode cathodic protection. The use of deep well anodes and sacrificial anodes is limited as it does not generate stray currents.
- Protection of concrete components such as parking lots and highway bridge decks generally employs titanium anode mesh. The mesh-coated titanium grid can be directly fixed on the surface or columns, with low anode current density and light weight, ensuring a lifespan of at least 25 years.
- Cathodic protection for ships: Dock structures, offshore platforms, and ship hulls are protected from corrosion in seawater environments by the cathodic protection provided by titanium anode mesh.
- Pipeline protection: Titanium anode mesh is utilized to protect pipelines from corrosion, especially in areas with severe soil erosion or high levels of stray currents.
Related Products
Fast Guide
For MMO Ribbon Anode
THT can produce and provide various MMO titanium anode type options for cathodic protection, including wire, tube, ribbon,mesh, disc etc. MMO ribbon anode has low consumption rates, good conductivity, and high chemical stability in cathodic protection applications. It exhibits excellent chemical stability even in environments with low pH and chloride ions. The coating has a low and uniform consumption rate: 1-6 mg/A. a. And it can operate at high current densities. We could customize specific coating and thickness based on below specification:
- Working environment
- Current density
- Lifespan and Current Output
- WidthxThickness x Quantity
Using pearl cotton and kraft paper, and to provide shock absorption with foam boards，outside packing with export wooden box.
It depends on working environment and life request, normally our coating range is 5-10um.
Comprehensive consideration of specific needs and real-world conditions is necessary. For detailed information, please contact our sales and engineering team.
Yes, during shipment we would provide it together.
Our MOQ is one roll 152m length.
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