CN205115606U - Compound sacrificial anode of magnesium aluminium - Google Patents
Compound sacrificial anode of magnesium aluminium Download PDFInfo
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- CN205115606U CN205115606U CN201520821332.6U CN201520821332U CN205115606U CN 205115606 U CN205115606 U CN 205115606U CN 201520821332 U CN201520821332 U CN 201520821332U CN 205115606 U CN205115606 U CN 205115606U
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Abstract
The utility model relates to an anticorrosive technical field of marine environment metallic structure thing, in particular to compound sacrificial anode of magnesium aluminium. This complex sacrificial anode includes aluminum alloy positive pole and magnesium alloy positive pole, and wherein, the aluminum alloy positive pole includes the aluminum alloy body (2) and aluminum alloy positive pole iron core (1), and aluminum alloy positive pole iron core (1) passes the aluminum alloy body (2) along the axial, the magnesium alloy positive pole includes the magnesium alloy body (4) and magnesium alloy positive pole iron core (3), and magnesium alloy positive pole iron core (3) passes magnesium alloy (4) along the axial, the both ends welding of magnesium alloy positive pole iron core (3) is on aluminum alloy positive pole iron core (1). The utility model discloses simple structure can effectively satisfy the big requirement of sacrificial anode initial stage occurred current.
Description
Technical field
The utility model relates to ocean environment metallic structures technical field of anticorrosion, particularly a kind of Magnalium composite sacrificial anode.
Background technology
The galvanic protection of marine structure is generally divided into protection initial stage, mid-term and later stage three phases.The protection initial stage starts to form cathodic coating on protective surface, i.e. calcium magnesium settled layer, and the protective current now needed is comparatively large, and the protective current that maintaining after stable polarizes needs is less.Usually, protecting current density needed for the protection initial stage is about 3 ~ 5 times of whole protection period average current density.In practical engineering application, about protection initial stage current density design point is about the twice of average protecting current density design load in the whole steel construction time limit in work-ing life.This just makes, when adopting galvanic protection, in order to obtain enough protective currents in the early stage, to have to drop into enough anode quantity in the design, realizing cathodic polarization.After polarization completes and enters protection mid-term and later stage, required protective current greatly reduces, and just makes anode quantity superfluous, causes the waste of anode material, increase the load of protected body.
Composite sacrificial anode is used to be the effective way solving above-mentioned contradiction.The magnesium anode that protection initial activity is larger plays Main Function, under less quality, just can send larger current.Treat magnesium anode approach exhaustion, after entering protection mid-term and later stage, less, that electrical capacity the is high aluminum anode of electric current occurs and just starts to play Main Function, to meet galvanic protection initial stage big current and to protect the middle and later periods to protect requirement for a long time.
Summary of the invention
The Magnalium composite sacrificial anode that the purpose of this utility model is to provide a kind of initial stage to occur, and electric current is large, the middle and later periods, the little guard time length of electric current occurred.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of Magnalium composite sacrificial anode, this composite sacrificial anode comprises aluminum alloy anode and magnesium alloy anode, wherein,
Aluminum alloy anode comprises aluminum alloy body 2 and aluminum alloy anode iron core 1, and aluminum alloy anode iron core 1 passes axially through aluminum alloy body 2;
Magnesium alloy anode comprises magnesium alloy body 4 and magnesium alloy anode iron core 3, and magnesium alloy anode iron core 3 passes axially through magnesium alloy body 4;
The two ends of magnesium alloy anode iron core 3 are welded on aluminum alloy anode iron core 1.
Described aluminum alloy anode iron core 1 is U-shaped.
Described magnesium alloy anode iron core 3 is linear.
The length of described magnesium alloy anode iron core 3 is equal with the length of the U-shaped opening of aluminum alloy anode iron core 1.
The two ends of described aluminum alloy anode iron core 1 are welded on protected body.
The quality of described magnesium alloy body 4 is with aluminum alloy body 2 5% ~ 20%.
Described magnesium alloy body 4 and aluminum alloy body 2 are long strip shape.
Magnesium alloy anode also can be installed on top or the side of aluminum alloy anode.
Compared with prior art, the beneficial effects of the utility model are:
The utility model structure is simple, when a small amount of increase quality of anode, there is the large requirement of electric current in the initial stage that just can reach, and in the middle and later periods, electric current meeting reduction automatically occurs, avoid the waste of sacrificial anode, comparatively conventional aluminum alloys sacrificial anode can save anode consumption 10% ~ 30%.
Accompanying drawing explanation
Fig. 1 is the diagrammatic cross-section of composite sacrificial anode of the present utility model.
Wherein Reference numeral is:
1 aluminum alloy anode iron core
2 aluminum alloy body
3 magnesium alloy anode iron cores
4 magnesium alloy bodies
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, Magnalium composite sacrificial anode of the present utility model, comprises aluminum alloy anode and magnesium alloy anode, and wherein, aluminum alloy anode comprises aluminum alloy body 2 and aluminum alloy anode iron core 1, and aluminum alloy anode iron core 1 is U-shaped iron core, and it passes axially through aluminium alloy 2; Magnesium alloy anode comprises magnesium alloy body 4 and magnesium alloy anode iron core 3, and magnesium alloy anode iron core 3 is straight iron core, and it passes axially through magnesium alloy 4; The two ends of magnesium alloy anode iron core 3 are welded on aluminum alloy anode iron core 1, and the two ends of aluminum alloy anode iron core 1 are welded on protected body.
The length of magnesium alloy anode iron core 3 is equal with the length of the U-shaped opening of aluminum alloy anode iron core 1; Sacrificial magnesium alloy anode also can be installed on top or the side of sacrificial aluminium alloy anode.
Claims (8)
1. a Magnalium composite sacrificial anode, is characterized in that:
This composite sacrificial anode comprises aluminum alloy anode and magnesium alloy anode, wherein,
Aluminum alloy anode comprises aluminum alloy body (2) and aluminum alloy anode iron core (1), and aluminum alloy anode iron core (1) passes axially through aluminum alloy body (2);
Magnesium alloy anode comprises magnesium alloy body (4) and magnesium alloy anode iron core (3), and magnesium alloy anode iron core (3) passes axially through magnesium alloy body (4);
The two ends of magnesium alloy anode iron core (3) are welded on aluminum alloy anode iron core (1).
2. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
Described aluminum alloy anode iron core (1) is U-shaped.
3. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
Described magnesium alloy anode iron core (3) is linear.
4. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
The length of described magnesium alloy anode iron core (3) is equal with the length of the U-shaped opening of aluminum alloy anode iron core (1).
5. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
The two ends of described aluminum alloy anode iron core (1) are welded on protected body.
6. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
The quality of described magnesium alloy body (4) is with aluminum alloy body (2) 5% ~ 20%.
7. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
Described magnesium alloy body (4) and aluminum alloy body (2) are long strip shape.
8. Magnalium composite sacrificial anode as claimed in claim 1, is characterized in that:
Magnesium alloy anode also can be installed on top or the side of aluminum alloy anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821332.6U CN205115606U (en) | 2015-10-21 | 2015-10-21 | Compound sacrificial anode of magnesium aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821332.6U CN205115606U (en) | 2015-10-21 | 2015-10-21 | Compound sacrificial anode of magnesium aluminium |
Publications (1)
| Publication Number | Publication Date |
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| CN205115606U true CN205115606U (en) | 2016-03-30 |
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| CN201520821332.6U Active CN205115606U (en) | 2015-10-21 | 2015-10-21 | Compound sacrificial anode of magnesium aluminium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122852A (en) * | 2021-04-25 | 2021-07-16 | 浙江钰烯腐蚀控制股份有限公司 | Preparation method of magnesium-aluminum composite anode and magnesium-aluminum composite anode |
| CN114351152A (en) * | 2021-12-07 | 2022-04-15 | 海洋石油工程股份有限公司 | String-shaped sacrificial anode applied to marine steel structure |
| CN114919720A (en) * | 2022-05-19 | 2022-08-19 | 青岛双瑞海洋环境工程股份有限公司 | Seabed type sacrificial anode device |
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2015
- 2015-10-21 CN CN201520821332.6U patent/CN205115606U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122852A (en) * | 2021-04-25 | 2021-07-16 | 浙江钰烯腐蚀控制股份有限公司 | Preparation method of magnesium-aluminum composite anode and magnesium-aluminum composite anode |
| CN114351152A (en) * | 2021-12-07 | 2022-04-15 | 海洋石油工程股份有限公司 | String-shaped sacrificial anode applied to marine steel structure |
| CN114919720A (en) * | 2022-05-19 | 2022-08-19 | 青岛双瑞海洋环境工程股份有限公司 | Seabed type sacrificial anode device |
| CN114919720B (en) * | 2022-05-19 | 2024-04-30 | 青岛双瑞海洋环境工程股份有限公司 | Seabed type sacrificial anode device |
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Effective date of registration: 20180223 Address after: 266071 room B, room B, No. 1, intelligence island road, Qingdao hi tech Zone, Shandong Patentee after: Qingdao CISRI Nanogram Detection Protection Technology Co., Ltd. Address before: 266071 room B, room B, No. 1, intelligence island road, Qingdao hi tech Zone, Shandong Co-patentee before: CISRI Qingdao Marine Corrosion Institute Patentee before: Qingdao CISRI Nanogram Detection Protection Technology Co., Ltd. |