Corrosion resistant magnesium anode online manufacture

Corrosion resistant magnesium anode online manufacturer
  Magnesium is a sacrificial anode material commonly used in electrochemical cathodic protection engineering
It has high chemical activity, negative electrode potential and high driving voltage
At the same time, it is difficult to form an effective protective film on the surface of magnesium
Therefore, in aqueous medium, the micro corrosion of magnesium surface has large driving force, the protective film is easy to dissolve, the self corrosion of magnesium is very strong, and the hydrogen evolution reaction 2H + + 2E & mdash occurs on the cathode; H2。 Magnesium based sacrificial anodes include pure magnesium, Mg Mn alloys and Mg AI Zn Mn alloys
Their common characteristics are low density, large theoretical capacitance, negative potential, low polarizability and high driving voltage (& gt; 0
6V) for steel
They are suitable for the protection of metal components in soil and fresh water with high resistivity

Corrosion resistant magnesium anode online manufacturer
  Magnesium is an active metal, and its electrochemical properties are greatly affected by impurities and alloy elements
When it contains a small amount of impurities, especially those with low hydrogen evolution overpotential, it will increase the autolysis tendency of magnesium and reduce the current efficiency
Some impurity elements in magnesium, such as Fe, CO and Mn, are solid dissolved in magnesium matrix in the form of simple substance, while other impurities, such as Al, Zn, Ni and Cu, are easy to form intermetallic compounds with magnesium
No matter what kind of impurity elements, they show strong catholicity relative to magnesium solid solution, which can increase the effective area of hydrogen evolution and further increase the corrosion rate of magnesium
It is necessary to reduce the content of impurity elements in pure magnesium anode as much as possible
The mass fraction (%) of impurity elements should be controlled at: Zn & lt; 0
03
Mn< 0
01
Fe< 0
02, Ni< 0
001 } Cu< 0
001
Si< 0
01
However, this brings difficulties to the production of pure magnesium anode

Corrosion resistant magnesium anode online manufacturer
  Generally, alloying method is adopted to add a certain amount of alloy elements such as Mn, Al and Zn to industrial magnesium, which can eliminate the adverse effects of impurity elements and obtain magnesium alloy sacrificial anode materials with excellent performance
General pure magnesium anodes are rarely used because of their low current efficiency (only about 30%) and short service life
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Libo anticorrosion is a manufacturer specializing in the production of aluminum alloy anodes
It stands out among many manufacturers in Jiaozuo with quality assurance and after-sales service
There are Procurement - Design - production - testing - packaging and other departments to jointly complete each batch of products without any quality problems
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Tel: 13939157916