Production, sales and wholesale of AC-2 aluminum alloy sacrificial anode

  Production, sales and wholesale of AC-2 aluminum alloy sacrificial anode
 
Sacrificial aluminum alloy is the main component of sacrificial aluminum alloy for cathodic protection
At present, the most commonly used aluminum alloy sacrificial anode is al - Zn － In  System and Al － Zn － Hg  It is an anode, which is suitable for cathodic protection of structures such as buried oil and gas pipelines, ships in seawater, port engineering and marine facilities, seawater cooling water system and deposited water parts of storage tanks
Aluminum alloy anode production execution GB4948 － 2002  Aluminum zinc indium alloy sacrificial anode
Aluminum alloy sacrificial anode has high electrochemical performance and large power generation per unit weight of anode material, which is about 3 times that of zinc anode and 2 times that of magnesium anode
In seawater and other media containing chloride ions, it has good performance and strong self-regulation ability of current

What is needed for aluminum anodizing?
The composition and process conditions of oxidation solution are as follows:
Name content (ml / L)
Sulfuric acid (H2SO4) 100 ~ 200
Voltage / V 12
Oxidation time / min 20 ~ 120
Power DC
Area ratio of anode and cathode: 1
5
Temperature / ℃ 20 ~ 30
Average current density / A & bull; dm-2 0
10
  Production, sales and wholesale of AC-2 aluminum alloy sacrificial anode
1) When the concentration of sulfuric acid (H2SO4) solution is high, the film is easy to color, and the color is dark, and the porosity of the film is large; When the concentration of sulfuric acid (H2SO4) solution is low, the color of the membrane is slightly slow, the color is light, and the porosity of the membrane is small Therefore, if you want to make a strong adsorption and elastic film, you can use a higher concentration of oxidizing liquid
If you want a hard and wear-resistant oxide film, you can use a lower concentration of oxidizing liquid
2) In anodic oxidation, the initial current density has a great influence on the structure of the oxide film Too high current density will make the edge film of the specimen scorch and make the oxide film very rough Therefore, in the process of anodic oxidation, the current density should gradually increase to a certain value, and the voltage fluctuation should not exceed 2V in the later oxidation process When the current density exceeds 3
3 A & bull; At DM-2, the corrosion resistance of the oxide film decreases with the increase of current density, but the current density does not exceed 3
3 A & bull; In DM-2, with the increase of current density, the porosity of oxide film also increases, which is easy to dye and has good corrosion resistance
3) Within 1h, the growth of oxide film is proportional to the oxidation time However, when the oxidation time is too long, because the surface of the oxide film is dissolved by the electrolyte, the pore size of the oxide film gradually becomes larger and the film becomes rough
The electrode potential of magnesium is -2
375v
The electrode potential of aluminum is -1
706v
The electrode potential of zinc is -0
763v
The electrode potential of iron is -0
409v
The electrode potential of copper is + 0
340v
If zinc aluminum alloy is used as sacrificial anode, it can be used to protect iron, copper and other metals, but not magnesium
At present, there are mainly three kinds of magnesium aluminum zinc anodes
Magnesium alloy is used in soil, zinc alloy in seawater and aluminum alloy in fresh water

  Production, sales and wholesale of AC-2 aluminum alloy sacrificial anode
Firstly, cathodic protection technology is a kind of electrochemical protection technology
Its main principle is to apply an applied current to the surface of the corroded metal structure to make the protected structure become the cathode, and then inhibit the electron migration of metal corrosion and avoid or weaken the occurrence of corrosion
Secondly, as far as the current cathodic protection technology is concerned, it is relatively mature and widely used in the corrosion control of metal structures such as steel pipelines, cables, steel docks, ships, tank bottoms and coolers in soil, seawater, fresh water and chemical media
Aluminum alloy sacrificial anode product introduction:
Aluminum alloy sacrificial anode executive standard GB / t4948-2002
Aluminum alloy sacrificial anode is the main production product of our company
It is often used in a series of soil such as seawater steel pile, seawater pipeline, inner wall of oil storage tank, circulating water pipeline, ballast tank protection, etc
aluminum alloy sacrificial anode is not recommended
Its main function is to protect anti-corrosion and increase the service life of protection
The production process is simple and the workmanship is fine
The alloy composition in it is very key to the aluminum alloy sacrificial anode
The composition proportion must be arranged according to the national standard
Workers strictly control each process, so as to achieve precision and seek perfection, and present the most satisfactory products to customers
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