高硅铸铁阳极是外加电流阴极保护系统中的关键掩埋组件，作为辅助阳极为陆地与海洋建筑物提供防腐蚀保护。针对外加电流高硅铸铁阳极的化学性能，相关标准已有详尽规范；目前我司已完成技术升级换代，推出的数字模块化产品性能稳定，可显著提升设备的抗腐蚀性能。
高硅铸铁具备优异的导电性能，当阳极电流通过时，其表面会发生氧化反应，生成一层薄的二氧化硅保护膜。该保护膜具有高电阻率和强化学稳定性，能使阳极在酸性环境中处于钝化状态，从而大幅降低阳极的溶解速率。
此外，通过添加铬元素改良的高硅铸铁，可让二氧化硅保护膜具备抵抗碱腐蚀和氯离子侵蚀的能力。这一特性使含铬高硅铸铁阳极能够适应含氯化物的复杂环境，进而广泛应用于各类土壤或水体条件下的防腐工程。
High-silicon Cast Iron Anode
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Product Positioning
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A buried anode component in impressed current cathodic protection systems, used for corrosion protection of terrestrial and marine structures.
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Technical Upgrade Advantages
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Adopts upgraded digital modular technology, with high product stability, which can significantly enhance the corrosion resistance of mechanical products.
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Key Performance Features
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Has excellent electrical conductivity, ensuring efficient transmission of protective current.
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Protection Mechanism (Basic Type)
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When anode current passes through, an oxidation reaction occurs on the surface, generating a thin silicon dioxide protective film:
1. High resistivity, reducing ineffective current loss;
2. Excellent chemical stability, maintaining a passive state in acidic environments;
3. Significantly reduces the self-dissolution rate of the anode, prolonging service life.
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Enhanced Advantages of Chromium-Containing Model
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After adding chromium element, the performance of the silicon dioxide protective film is upgraded:
1. Has the ability to resist alkali corrosion;
2. Effectively resists chloride ion corrosion;
3. Adapts to complex environments containing chlorides.
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Applicable Scenarios
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Chromium-containing high-silicon cast iron anodes can adapt to various soil environments and water environments.
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Specifications–Rod-Shaped Anodes
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No.
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Main Diameter (mm)
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Terminal Diameter (mm)
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Overall Length (mm)
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Weight (kg)
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Shape
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Process Feature
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1
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38
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56
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1500
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13
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Rod
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All rod-shaped objects can be made double-headed
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2
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50
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70
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1500
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23
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Rod
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3
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75
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98
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1500
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48
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Rod
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4
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63
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98
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1500
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34
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Rod
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Specifications–Tubular Anodes
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No.
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Main Diameter (mm)
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Inner Diameter (mm)
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Overall Length (mm)
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Shape
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1
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56
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36
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2133
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Tubular
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2
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75
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55
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1500
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Tubular
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3
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68
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48
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2133
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Tubular
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4
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96
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76
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1500
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Tubular
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5
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120
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100
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1500
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Tubular
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