Custom Manufacturing MMO Tubular Anode Services
Wstitanium MMO plate-shaped anode is equipped with a unique coating formula and manufacturing technology. The mixed metal oxides in its coating effectively reduce the overpotential of the electrode reaction, accelerate the electron transfer process, and thus increase the electrochemical reaction rate.
- MMO Platinum Tubular Anode
- MMO Iridium Tantalum Tubular
- MMO Iridium Ruthenium Tubular
- MMO Tubular Anode For Chlor-alkali
- MMO Tubular Anode For Marine
- MMO Tubular Wastewater Treatment
- MMO Tubular Anode For Electroplating
- MMO Tubular Cathodic Protection
Respectable MMO Tubular Anode Supplier-Wstitanium
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IrO₂/Ta₂O₅ Coated Tubular Anode
Suitable for highly corrosive environments (such as seawater, saline water), with excellent chlorine resistance and long life. Low consumption rate (about 1 mg/A・year), can meet the design life requirements of more than 30 years.
IrO₂/RuO₂ Coated Tubular Anode
Suitable for moderately corrosive environments (such as soil, fresh water), balances conductivity and corrosion resistance, and has a relatively low cost. The coating thickness is usually ≥6 microns to ensure uniform current distribution.
Customized Coated Tubular Anode
In custom design, the anode diameter, length, coating thickness and other parameters are precisely manufactured for electrochemical and impressed current cathodic protection. Applied to marine engineering, buried pipelines, storage tanks, etc.
Advantages of MMO Tubular Anodes
The base of MMO tubular anodes is titanium tube. The low density of titanium makes the anode lighter overall, which has obvious advantages in some application scenarios with strict weight restrictions, such as ships and offshore platforms. The coating is the core and key part of the MMO tubular anode, usually composed of a variety of metal oxides, such as iridium (Ir), tantalum (Ta), tin (Sn), rhodium (Rh), etc. The tubular structure gives the anode a larger specific surface area, which can provide more reaction sites compared with other shapes of anodes of the same volume, thus greatly facilitating the efficient conduct of electrochemical reactions.
- High chlorine evolution potential
In chlorine-containing media, the MMO tubular anode has a high chlorine evolution potential, which effectively inhibits oxygen evolution and improves the efficiency of chlorine generation.
- Low overpotential
The low overpotential characteristics of the MMO tubular anode enable it to drive the reaction at a lower voltage during operation, thereby saving energy consumption.
- Good conductivity
The MMO coating has good conductivity, which can ensure the rapid conduction of current on the anode surface. Improve the uniformity and stability of the electrode reaction.
- Chemical corrosion resistance
The MMO tubular anode has excellent corrosion resistance to a variety of chemical substances. It is not easily corroded in strong acidic, strong alkaline or electrolyte solutions containing various salts.
- Seawater corrosion resistance
The MMO tubular anode can operate stably in seawater for a long time in applications such as cathodic protection and seawater desalination in marine engineering due to its special materials.
- Service life
Under normal working conditions, its service life can reach several years or even decades. This not only reduces the frequency of anode replacement, but also reduces maintenance costs.
Custom Manufacturing MMO Tubular Anode Services
Custom manufacturing of MMO tubular anodes is a complex process involving multidisciplinary knowledge and multi-link processes. From the understanding of basic principles, careful selection of materials, precision manufacturing, to strict performance testing, a wide range of applications, and perfect customization processes and after-sales services, each aspect is closely linked and jointly determines the quality and performance of MMO tubular anodes. Wstitanium’s custom-made MMO tubular anodes play an important role in the field of cathodic protection of various metal structures with their advanced technology, high-quality materials, exquisite manufacturing technology and perfect after-sales services.
Titanium tube pretreatment
Before applying the MMO coating, the surface of the titanium tube needs to be thoroughly cleaned to remove oil, scale and other impurities on the surface. Common cleaning methods include chemical cleaning and mechanical cleaning. Chemical cleaning usually uses strong acid or strong alkaline solutions to dissolve surface impurities; mechanical cleaning removes the surface oxide layer through sandblasting, polishing, etc., improves the surface roughness, and enhances the bonding force between the coating and the substrate.
Coating formula
The formula of MMO coating is determined according to specific application requirements. Different metal oxide ratios and additives will affect the performance of the coating. In the preparation process, various metal salts need to be dissolved in a solvent in a certain proportion to form a uniform solution or slurry. Then, the slurry is coated on the surface of the titanium tube by a coating method, the solvent is removed by drying, and finally sintered at a high temperature to convert the metal salt into metal oxide and form a dense coating structure. The sintering temperature and time are important parameters that affect the performance of the coating and need to be precisely controlled according to the coating formula and the size of the titanium tube.
Coating
The coating methods of MMO coating mainly include dipping, spraying and brushing. The dipping method is to immerse the pretreated titanium tube into a tank containing a metal salt solution, so that the solution is evenly attached to the surface of the titanium tube, and then a coating is formed by drying and sintering; the spraying method is to use a spray gun to spray a slurry containing a metal salt solution onto the surface of the titanium tube. This method can achieve uniform distribution of the coating and precise control of the coating thickness; the brushing method is to use a brush to evenly apply the slurry to the surface of the titanium tube, which is suitable for small-batch production or situations where the coating thickness requirements are not high.
Quality inspection
Perform an appearance inspection on the prepared MMO tubular anode to check whether the coating surface is uniform and smooth, and whether there are defects such as cracks, bubbles, and peeling. The electrochemical performance of the anode is evaluated by electrochemical test methods such as cyclic voltammetry and constant current polarization. The test indicators include chlorine evolution potential, overpotential, electrochemical impedance, etc. These test results can reflect the performance parameters of the anode, such as catalytic activity, conductivity, and stability. The MMO tubular anode is placed in a corrosive medium that simulates the actual application environment for corrosion resistance testing. The test methods include immersion test, salt spray test, etc. The corrosion resistance of the anode is evaluated by observing the corrosion rate and surface changes of the anode in the corrosive medium.
By gaining a deeper understanding of the advantages of MMO tubular anodes, coatings, manufacturing, performance testing, etc., you can better choose products that suit your needs and ensure the efficient operation of electrochemical and cathodic protection systems. Wstitanium will continue to uphold innovation, continuously improve the technical level and service capabilities of custom-made MMO tubular anodes, and make greater contributions to the global industrial field’s anti-corrosion business.
