Aluminum alloy sacrificial anode main use and use range

Aluminum alloy sacrifice anode

. In seawater and medium containing chloride ion, the function is good, the self-regulation ability of electric current is strong.

Function: aluminum alloy sacrificial anode has very high electrochemical function, the anode material of unit weight is large, about 3 times of zinc anode, magnesium anode 2 times.

There are three types of sacrificial anodes for hull cathodic protection, including the welded sacrificial anodes, the double welded sacrificial anodes and the bolted sacrificial anodes.

Classification of aluminum anodes: Sacrificial anodes are divided into five types according to their materials, including al-Zn-indium-Cadmium alloy sacrificial anodes, al-Zn-indium-tin alloy sacrificial anodes, al-Zn-indium-tin-magnesium alloy sacrificial anodes, and al-Zn-indium-magnesium-titanium alloy sacrificial anodes.

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Main applications and application scope: aluminum anode is suitable for cathodic protection of metal corrosion prevention in ships, machinery and equipment, ballast tanks, storage tank inner wall, coastal measures, submarine pipelines, wharf steel piles, offshore platforms, cables and other measures in seawater medium.

Electrochemical performance

Performance Category Index Open circuit potential

-v (SCE) Operating potential

-V(SCE) Actual capacitance A· H /kg current efficiency

% Solubility condition

Common aluminum anode 1.10-1.181.05-1.12≥2400≥85 corrosion products easy to fall off, surface dissolution uniform.

High efficiency aluminum alloy anode 1.10-1.181.05-1.12≥2600≥90

High activation aluminum alloy anode 1.45-1.501.40-1.45≥2080≥70

All kinds of aluminum anode specifications:

1, storage tube with sacrificial anode

Model specifications/mm Weight/kg

A * (B1 and B2) * C

AC - 1750 x x 13035.0 (115 + 135)

AC - 2500 x x 13023.0 (115 + 135)

AC - 3500 x x 10016.0 (105 + 135)

AC - 4300 x x 10010.0 (105 + 135)

2, port facilities, Marine engineering facilities with sacrifice anode

Model Specifications /mm Weight/kg

A * (B1 and B2) * C

AI - 12300 - x x 230310.0 (220 + 240)

AI - 21600 - x x 220190.0 (200 + 210)

AI - 31500 - x x 180130.0 (170 + 200)

AI - 4900 - x x 16058.0 (150 + 170)