Mg Sacrificial Anode With Large Driving Voltage For Steel prevents corrosion
Mg Sacrificial Anode With Large Driving Voltage For Steel Prevents Corrosion
Introduction:
Magnesium is a sacrificial anode material commonly used in electrochemical cathodic protection engineering. It has high chemical activity, its electrode potential is relatively negative, and its driving voltage is high. At the same time, it is difficult to form an effective protective film on the magnesium surface. Therefore, in the aqueous medium, the microscopic corrosion battery driving force on the magnesium surface is large, the protective film is easy to dissolve, the self-corrosion of magnesium is very strong, and the hydrogen evolution reaction 2H++2e-H2 occurs on the cathode.
Parameters:
Our products have the following specifications:
- " D " anode
- " R " Cylindrical anode
- " S " anode
Chemical composition %
| Alloy | Al (max) | Mn | Si (max) | Cu (max) | Ni (max) | Fe (max) | Other impurity (each) | Total impurities |
| (max) | (max) | |||||||
| Mg- Mn | 0.01 | 0.50-1.30 | 0.05 | 0.005 | 0.001 | 0.03 | 0.05 | 0.3 |
The electrochemical performance
| Open voltage | Closed voltage | Actual capacity | Efficiency |
| 1.70-1.75 | 1.58-1.62 | 1230 min | 50 min |
Advantages:
A: The one-time investment cost is low, and basically no maintenance cost is required during the operation.
B: The utilization rate of the protection current is high, and no over-protection occurs
C: No interference to adjacent underground metal facilities, suitable for long-distance pipelines without power supply, and small-scale decentralized pipeline protection
D: It has the functions of grounding and protection
E: The construction technology is simple, and no special professional maintenance management is usually required.
Applications:
Cathodic protection is often used to mitigate corrosion damage to active metal surfaces. It is used worldwide to protect pipelines, water treatment plants, above and submerged storage tanks, ships and hulls, offshore production platforms, concrete structures and rebar in docks, among others.
Photos:
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