Sb-containing magnesium alloy sacrificial anode material

A sacrificial anode and magnesium alloy technology, which is applied in the field of magnesium alloy anode materials, can solve the problems of uneven consumption of magnesium alloy sacrificial anode materials and affect the service life, and achieve the effects of long service life, uniform consumption and broad application prospects

Active Publication Date: 2016-07-06
LUOYANG INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a sacrificial anode material of a magnesium alloy containing Sb, which solves the p

Method used

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Effect test

Embodiment 1

[0017] The Sb-containing magnesium alloy sacrificial anode material of the present embodiment is composed of the following components in mass percentage: Al5.0%, Zn0.8%, Sb0.1%, and the balance is Mg and unavoidable impurities; wherein the impurity element Si The total mass content of , Fe, Cu and Ni in the anode material is less than 0.2%.

[0018] The preparation method of the Sb-containing magnesium alloy sacrificial anode material of the present embodiment is to get alloy raw materials pure magnesium (Mg), pure aluminum (Al), pure zinc (Zn), and pure antimony (Sb) according to the above-mentioned components and contents, and adopt Corundum crucible and induction furnace for smelting to obtain magnesium liquid; in CO 2 +SF 6 Under the protection of mixed gas, the magnesium liquid is heated to 720° C. and poured into a steel mold to obtain a magnesium alloy ingot, which is the magnesium alloy sacrificial anode material.

Embodiment 2

[0020] The Sb-containing magnesium alloy sacrificial anode material of the present embodiment is composed of the following components in mass percentage: Al5.1%, Zn0.7%, Sb0.2%, and the balance is Mg and unavoidable impurities; wherein the impurity element Si The total mass content of , Fe, Cu and Ni in the anode material is less than 0.2%.

[0021] The preparation method of the Sb-containing magnesium alloy sacrificial anode material in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0023] The Sb-containing magnesium alloy sacrificial anode material of the present embodiment is composed of the following components in mass percentage: Al5.2%, Zn0.6%, Sb0.3%, and the balance is Mg and unavoidable impurities; wherein the impurity element Si The total mass content of , Fe, Cu and Ni in the anode material is less than 0.2%.

[0024] The preparation method of the Sb-containing magnesium alloy sacrificial anode material in this embodiment is the same as that in Embodiment 1.

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Abstract

The invention discloses a Sb-containing magnesium alloy sacrificial anode material. The magnesium alloy sacrificial anode material comprises, by mass, 5.0-5.2% of Al, 0.6-0.8% of Zn, 0.1-0.3% of Sb, and the balance Mg and inevitable impurities. The alloy components of the Sb-containing magnesium alloy sacrificial anode material include Mg-Al-Zn-Sb. On the basis of combined use of Zn and Al, by adding the Sb elements, grains are refined, and the structure is improved, so that the anode material is uniform in consumption, longer in service life and suitable for cathode protection under the corrosion environments such as soil, seawater and water heaters, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of magnesium alloy anode materials, and in particular relates to a sacrificial anode material of a magnesium alloy containing Sb. Background technique [0002] The economic loss caused by the corrosion of metal materials is huge. Using sacrificial anodes for electrochemical protection is an effective method to prevent metal materials from corroding, and it is of great significance to improve the corrosion resistance and prolong the service life of metal materials. Sacrificial anodes are widely used in anti-corrosion engineering due to their advantages such as no need for external power supply, no interference with adjacent metal facilities, good current dispersion capability, and easy management and maintenance. Magnesium alloys have good electrochemical properties and are often used as sacrificial anode materials to protect the cathode materials of equipment and devices to prolong the service life of cathod...

Claims

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Application Information

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IPC IPC(8): C22C23/02C22C1/02C23F13/14
CPCC22C1/02C22C23/02C23F13/14
Inventor 王莹李萍贾利晓张东晓徐玉梅崔扬赵靓雯
Owner LUOYANG INST OF SCI & TECH
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