Aluminum alloy sacrificial anode suitable for sea mud in Bohai Sea Gulf

A sacrificial anode and aluminum alloy technology, applied in the field of metal anti-corrosion, can solve the problem of less research on sacrificial anode materials, and achieve the effect of prolonging the life of the anode, easy to fall off, and fast activation of the anode

Active Publication Date: 2013-02-20
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are only some studies on sea mud in the South China Sea, and there are few studies on sacrificial anode materials suitable for sea mud in Bohai Bay

Method used

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  • Aluminum alloy sacrificial anode suitable for sea mud in Bohai Sea Gulf
  • Aluminum alloy sacrificial anode suitable for sea mud in Bohai Sea Gulf
  • Aluminum alloy sacrificial anode suitable for sea mud in Bohai Sea Gulf

Examples

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Embodiment 1

[0018] A method for manufacturing an aluminum alloy sacrificial anode suitable for Bohai Bay sea mud. Weigh 2.5% zinc; 0.01% indium; 0.08% tin; 4% magnesium; 0.12% lanthanum; 0.12% actinium; 0.03% cerium; 0.04% silicon, 93.1% aluminum.

[0019] Wrap indium, tin, magnesium, lanthanum, actinium, and cerium with aluminum foil, put them into the molten aluminum, and then put zinc into the molten aluminum. After the alloy is completely melted, check that the impurity silicon content is 0.04%; The molten alloy is poured into a mold and cast into an aluminum alloy sacrificial anode body. The weight of the aluminum foil is included in the component aluminum.

[0020] refer to figure 1 . The aluminum alloy sacrificial anode body includes a sacrificial anode 1 and a connecting plate 2. The sacrificial anode 1 is a semi-circular cylinder, that is, the cross section of the sacrificial anode 1 is a semi-circular ring, and two semi-circular sacrificial anodes 1 are opposite to form a hol...

Embodiment 2

[0025] A method for manufacturing an aluminum alloy sacrificial anode suitable for Bohai Bay sea mud. Weigh 4% zinc; 0.05% indium; 0.05% tin; 6% magnesium; 0.2% lanthanum; 0.2% actinium; 0.03% cerium, 89.44% aluminum; 0.03% silicon. Lanthanum, actinium and cerium are products of Baotou Iron and Steel (Group) Co., Ltd.

[0026] Alloy indium, tin, magnesium, lanthanum, actinium, and cerium, press the alloy into the molten aluminum, and then put zinc into the aluminum melt. After the alloy is completely melted, check that the silicon is 0.03%; The molten alloy is poured into a mold and cast into an aluminum alloy sacrificial anode body.

[0027] The aluminum alloy sacrificial anode body includes a sacrificial anode 1 and a connecting plate 2. The sacrificial anode 1 is a semi-circular cylinder, that is, the cross section of the sacrificial anode 1 is a semi-circular ring, and two semi-circular sacrificial anodes 1 are opposite to form a hollow cylinder. The inner diameter of th...

Embodiment 3

[0032] A method for manufacturing an aluminum alloy sacrificial anode material suitable for Bohai Bay sea mud. Weigh 5% zinc; 0.03% indium; 0.02% tin; 8% magnesium; 0.29% lanthanum; 0.30% actinium; 0.04% cerium, 86.27% aluminum; silicon content 0.05% . Lanthanum, actinium and cerium are products of Baotou Iron and Steel (Group) Co., Ltd.

[0033] Alloy indium, tin, magnesium, lanthanum, actinium, and cerium, press the alloy into the molten aluminum, and then put zinc into the aluminum melt. After the alloy is completely melted, check that the silicon is 0.05%; The molten alloy is poured into a mold and cast into an aluminum alloy sacrificial anode body. The weight of the aluminum foil is included in the component aluminum.

[0034]The aluminum alloy sacrificial anode body includes a sacrificial anode 1 and a connecting plate 2. The sacrificial anode 1 is a semi-circular cylinder, that is, the cross section of the sacrificial anode 1 is a semi-circular ring, and two semi-cir...

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Abstract

The invention relates to an aluminum alloy sacrificial anode suitable for Bohai Bay sea mud, which is composed of nine elements. The composition of the aluminum alloy sacrificial anode is: 2.0-5.5% of zinc, 0.01-0.05% of indium, and 0.01-0.08% of tin , magnesium 4-8%, lanthanum 0.12-0.32%, actinium 0.12-0.32%, cerium 0.03-0.04%, silicon is an impurity element, silicon ≤ 0.05%, and the balance is aluminum. Most of the added lanthanum, actinium, and cerium elements exist in the state of segregated phases, and are also distributed in the grain, but they are mainly concentrated at the grain boundaries to form binary or multi-element compounds, such as LaAl4, CeAl4 and other aluminum-rich rare earth phases, and form with aluminum intermetallic compounds. The invention is suitable for sacrificial anode protection in the sea mud environment of Bohai Bay, has good adaptability to sea mud with high void ratio, large temperature range change, and strong corrosion, and has the characteristics of high current efficiency and long service life, so it has the advantages of It has the advantages of good protection effect, long service life, and saving anode materials.

Description

Technical field [0001] The present invention involves the field of metal anticorrosive technology, and specially involves a kind of aluminum alloy sacrifice anode material, which is suitable for metal sacrifice anode protection in the sea mud environment of the Bohai Bay. technical background [0002] The sacrifice anods used in sea mud are the anode series with good performance in the seawater.However, because the sea mud is more dense, it affects the activation of sacrifice anode. In addition, the corrosion products that sacrifice theods are not easy to fall off on the anode surface, which will also cause anode efficiency to decrease.In addition, the ingredients and characteristics of sea mud in different sea areas are large. In a sea mud, the average sacrifice anode in a sea area may not also have good electrochemical properties in the sea mud in another sea area.At present, there are only some research on the South China Sea Sea Mud, which has less research on sacrifice anode...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/14C22C21/10C22C21/08
Inventor 张盈盈韩文礼周冰林竹解蓓蓓范云鹏王志涛
Owner BC P INC CHINA NAT PETROLEUM CORP
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