Xi'an oil pipeline magnesium alloy sacrificial anode * * manufacture

  Xi'an oil pipeline magnesium alloy sacrificial anode * * manufacturer
The solubility of manganese in magnesium is 3
4%
If the melting method is properly controlled, the single-phase solid solution structure of Mg Mn containing a small amount of Mn crystal can be obtained
Manganese is a very effective purification element for controlling impurities in magnesium, which can eliminate the adverse effects of impurities and reduce the self-corrosion rate of magnesium
In the melting process of magnesium alloy, manganese and iron can form relatively large Fe Mn compounds and deposit at the bottom of the solution, while the iron remaining in the alloy is dissolved in manganese or surrounded by manganese, which does not produce the harmful effect of cathode impurities
However, Mn has segregation in magnesium alloy, and excessive Mn will reduce the corrosion resistance and plasticity of the alloy
The manganese content of Mg Mn alloy anodes produced at home and abroad is generally 0
5% - 1
3%, and the allowable impurity contents of iron and copper are less than 0
03% and 0
02% respectively, which is more than ten times higher than that of pure magnesium anodes

Xi'an oil pipeline magnesium alloy sacrificial anode * * manufacturer
Another function of manganese is to form hydrated manganese dioxide film on the surface of magnesium alloy which is more protective than magnesium hydroxide film when Mg Mn anode is corroded and dissolved, so as to further weaken the hydrogen evolution
Mg Mn alloy (magnesium anode is an anti-corrosion material specially used for cathodic protection engineering
It has extremely high electrochemical function
Magnesium anode has uniform consumption, long service life and large power generation
It is suitable for cathode maintenance of metal structures in soil and fresh water medium
In the process of cathode maintenance, magnesium anode consumes uniform consumption, so its service life is long
In the process of practical application, magnesium anode is more clear about the maintenance of target structure
In electricity The resistance is greater than 8000 ohms In the soil of meters, it is recommended to use magnesium anode

Xi'an oil pipeline magnesium alloy sacrificial anode * * manufacturer
In nature, magnesium anodes exist as metal compounds
After refining, the magnesium anode is given the condition of changing from ionic state to atomic state
The principle of cathode maintenance is that the metal makes up for the electrons, so that the maintained metal is in the state of excess electrons, so that the metal reaches the negative potential
It is not easy for the metal atoms to lose electrons and form ions to dissolve into the solution
The magnesium anode can be used to avoid corrosion
The magnesium anode plays such a role
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