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Aluminum alloy sacrificial anode

magnesium anode, zinc anode

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Jiaozuo Libo Light Alloy Co., Ltd.

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Address:Wuzhi County, Jiaozuo City, China

Industry News

What is the relationship between the selection of aluminum anode block composition

  • Author:Libo
  • Source:wm.wanka5151.com
  • Date:2021-06-11
  • Click:0

Aluminum anode is mainly used for buried pipeline (tap water/oil/gas company), water/oil storage tank anti-corrosion, wharf steel pile/pier anti-corrosion, shipyard, power plant, oil field facilities and other metal protection.

Aluminum zinc indium cadmium alloy is suitable for inner wall of oil storage tank, aluminum zinc indium magnesium titanium is suitable for use in sewage...... The actual use of the design element will give the appropriate composition requirements.

Chemical composition


Types of alloy

Zn

In

Cd

Sn

Mg

Si

Ti

Impurities, not greater than

Al


Si

Fe

Cu


Al-Zn-In-Sd

2.5-4.5

0.018-0.050

0.005-0.020

-

-

-

-

0.10

0.15

0.01

allowance

Al-Zn-In-Sn

2.2-5.2

0.020-0.045

-

0.018-0.035

-

-

-

0.10

0.15

0.01

allowance

Al-Zn-In-Si

5.5-7.0

0.025-0.035

-

-

-

0.10-0.15

-

0.10

0.15

0.01

allowance

Al-Zn-In-Sn-Mg

2.5-4.0

0.020-0.050

-

0.025-0.075

0.50-1.00

-

-

0.10

0.15

0.01

allowance

Al-Zn-In-Mg-Ti

4.0-7.0

0.020-0.050

-

-

0.50-1.50

-

0.01-0.08

0.10

0.15

0.01

allowance


Electrochemical performance


Category/indicator/performance

Open circuit potential -V(SCE)

Working potential -V(SCE)

Actual capacitanceA·h/kg

Current efficiency%

soluble

Ordinary aluminum sacrificial anode

1.10-1.18

1.05-1.12

≥2400

≥85

The corrosion products are easy to fall off, and the surface dissolves and moistens

High efficiency aluminum sacrifice anode

1.10-1.18

1.05-1.12

≥2600

≥90

High activated aluminum alloy sacrifice anode

1.45-1.50

1.40-1.45

≥2080

≥70


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