Zinc Alloy Sacrificial Anode/Zinc Anode/ Aluminum Anode for Ship, Marine Industry, Buried Pipeline Cathodic Protection
Product Description
Zinc alloy sacrificial anode
The cathodic protection method of zinc anode is to connect a metal or alloy that is more likely to lose electrons to protect steel equipment. For example: the protection of steel gates, some use this method. It is a more active metal, such as zinc, which is attached to the steel gate. In this way, when galvanic corrosion occurs, the metal that is more active than iron is corroded, and iron is protected. Usually, a certain amount of zinc blocks are installed at the stern of the ship and below the waterline of the hull to prevent the hull from corroding. This is the method used.
Product features: low self-solubility, high current efficiency, wide application range.
At present, electrochemical protection is not only used to protect steel equipment in sea water or rivers, but also to prevent corrosion of cables, petroleum pipelines, underground equipment, and chemical equipment. Aluminum alloy sacrificial anodes are suitable for cathodic protection of metal corrosion protection for ships, mechanical equipment, marine engineering and seaport facilities in seawater media, pipelines, cables and other facilities in sea mud, and soil media with low resistivity.
Precautions for use: 1. Keep the surface clean. 2. When using in the soil, the soil resistivity should be less than 15 ohm·m, and it is recommended to use it with a special packing package
Sacrificial zinc anode chemical compositions :
The cathodic protection method of zinc anode is to connect a metal or alloy that is more likely to lose electrons to protect steel equipment. For example: the protection of steel gates, some use this method. It is a more active metal, such as zinc, which is attached to the steel gate. In this way, when galvanic corrosion occurs, the metal that is more active than iron is corroded, and iron is protected. Usually, a certain amount of zinc blocks are installed at the stern of the ship and below the waterline of the hull to prevent the hull from corroding. This is the method used.
Product features: low self-solubility, high current efficiency, wide application range.
At present, electrochemical protection is not only used to protect steel equipment in sea water or rivers, but also to prevent corrosion of cables, petroleum pipelines, underground equipment, and chemical equipment. Aluminum alloy sacrificial anodes are suitable for cathodic protection of metal corrosion protection for ships, mechanical equipment, marine engineering and seaport facilities in seawater media, pipelines, cables and other facilities in sea mud, and soil media with low resistivity.
Precautions for use: 1. Keep the surface clean. 2. When using in the soil, the soil resistivity should be less than 15 ohm·m, and it is recommended to use it with a special packing package
Sacrificial zinc anode chemical compositions :
| element | Al | Cd | others | Zn | |||
| Fe | Cu | Pb | Si | ||||
| % | 0.3-0.6 | 0.05-0.12 | ≤ 0.005 | ≤ 0.005 | ≤ 0.006 | ≤ 0.125 | The balance |