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Help CenterShip Hull Protection Zinc Anode Block
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Implementation criteria:
· GB/T4950-2002
Main performance:
· The self-solubility of the anode is small, the current efficiency is high, and the self-regulation performance of the current generated by the anode is good. The protection period is long, which can reach 20-30 years, and the phenomenon of "over-protection" generally does not occur.
Scope of application:
· Zinc alloy sacrificial anode is suitable for cathodic protection of metal corrosion in ships, ballast tanks, mechanical equipment, marine engineering and harbour facilities, drilling platforms, harbour terminals, condensers of seawater media, water pumps and pipelines and cables in low resistivity soil.
| Type specification of zinc alloy sacrificial anode in storage tank | |||
| Name | Model | Specifications/㎜ |
Weight/ kg |
| A×（B1+B2）×C | |||
| Zinc anode | ZC-1 | 750×（115+135）×130 | 85 |
| Zinc anode | ZC-2 | 500×（115+135）×130 | 56 |
| Zinc anode | ZC-3 | 500×（105+135）×100 | 40 |
| Zinc anode | ZC-4 | 300×（105+135）×100 | 25 |
There are cathodic and anodic reactions between metals and electrolytes. When two different metals are put together, the more active metals tend to lose electrons. The medium they exchange is electrolyte and free ions flow.
Cathodic protection is to provide electrons to the hull to prevent the oxidation and corrosion of the hull. Current flow is defined as the direction from positive to negative. Because the direction of current flow is opposite to that of electronic flow, when current flows from sea water to the hull, the hull is protected. If current flows from the hull to sea water, the corrosion of the hull will accelerate.
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