MMO ribbon anode is precious metal oxide ribbon anode. Its main properties are as follows: it has high chemical stability, even in low pH value and chloride ion containing environment; Dimensional stability; Low and uniform coating loss rate: 1-6 mg / A.A; It can work under high current density; It has excellent conductivity.
It is mainly used in seawater, and the anode product is mainly Cl2; The anode products of soil, fresh water, brackish water and seawater are mainly O2 or Cl2 or both.
Features: the noble metal oxide anode is formed by covering a layer of metal oxide with electrocatalytic activity (oxide of ruthenium, iridium, titanium and other metals) on the titanium substrate (astmb 265 grade I titanium). The oxide coating has small polarization and very low consumption rate. By adjusting the composition of the oxide layer, it can be suitable for different environments, such as seawater, fresh water and soil media, Because noble metal oxide anode has the advantages that other anodes do not have, it has become the most ideal and promising auxiliary anode material at present.
As an auxiliary anode in the network anode cathodic protection system, the strip precious metal oxide anode and titanium conductive sheet are cross welded to form an anode network, which is widely used in the cathodic protection of the bottom plate of new storage tanks at home and abroad. MMO produced by our company The loss rate of titanium anode coating in various environments of cathodic protection is very low, about 2mg / A.A, and the service life can reach more than 30 years. It has high chemical stability, even in the environment with low pH value and chloride ion; Dimensional stability; Low and uniform coating loss rate: 1-6 mg / A.A; It can work under high current density; It has excellent conductivity and other characteristics.
The mixed metal oxide anode used in the forced current cathodic protection system is usually a layer of stable noble metal oxide with good flexibility, corrosion resistance and high conductivity, such as IrO2 / Ta2O5, which is thermally sintered on the titanium substrate, and the thickness is generally 1 ~ 1.2 μ m. The shape is generally reticular, banded, tubular and linear. It is applicable to soil, sewage, seawater and reinforced concrete. It is characterized by high current output density and very low consumption rate [3-6mg / (a • a)]. The advantages are low consumption, stable resistance and minimum voltage drop.
