CN104018163A - Novel alloy sacrificial anode - Google Patents
Novel alloy sacrificial anode Download PDFInfo
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- CN104018163A CN104018163A CN201410157457.3A CN201410157457A CN104018163A CN 104018163 A CN104018163 A CN 104018163A CN 201410157457 A CN201410157457 A CN 201410157457A CN 104018163 A CN104018163 A CN 104018163A
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- sacrificial anode
- novel alloy
- aluminium
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Abstract
The invention relates to a novel alloy sacrificial anode. The novel alloy sacrificial anode comprises the following components by weight percent: 1.0-3.0% of zinc, 0.02-0.03% of cadmium, 1.9-4.6% of magnesium, 0.0015-0.012% of tin, 0.011-0.027% of indium, not more than 0.11% of iron, not more than 0.003% of copper, not more than 0.11% of silicon and the balance of aluminium, wherein iron, copper and silicon are impurities. The novel alloy sacrificial anode has the advantages and positive effects that the sacrificial anode is simple in preparation process, available in elements and low in cost and has long service life; the product has excellent electrochemical properties; in the total immersion environment in seawater, the open circuit potential is minus 1.18-minus 1.10, the working potential is minus 1.12-minus 1.05, the capacitance is not less than 2700Ah/kg and the current efficiency is not less than 92%; the product is easy to fall off, is uniform in surface dissolution, has good properties and has good practical effects in application.
Description
Technical field
The invention belongs to metal corrosion and protection technical field, relate to a kind of sacrificial anode, especially a kind of novel alloy sacrificial anode.
Background technology
Aluminium is self-passivating metal, no matter is aluminium or aluminium alloy, and surface is very easily passivation all, if exploitation aluminium is made sacrificial anode material, can only limit and stop surface to form continuity oxide film by alloying, promote surface active, make alloy there is more negative current potential and higher current efficiency.Prior art situation is added separately zinc, cadmium, magnesium and barium in aluminium, can make the current potential of aluminium become negative 0.1～0.3V; Add separately the elements such as mercury, indium, gallium and seldom measure the negative 0.3～0.9V of current potential change that just can make aluminium; Add separately these elements and also can make the current potential of aluminium alloy reach requirement, but current efficiency is lower, and extend in time and decline.It is complicated that existing sacrificial aluminium alloy anode ubiquity constituent structure, and chemical property is not enough, and electrical capacity is not high, and price is unreasonable, should not be in shortcomings such as briny environment uses.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, providing a kind of can use in briny environment, extensively improves its chemical property, has extended work-ing life, novel alloy sacrificial anode with low cost.
The technical solution adopted for the present invention to solve the technical problems is:
A novel alloy sacrificial anode, its composition and weight percentage are as follows:
Zinc: 1.0-3.0%;
Cadmium: 0.02-0.03%;
Magnesium: 1.9-4.6%;
Tin: 0.0015-0.012%;
Indium: 0.011-0.027%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
And, described novel alloy sacrificial anode, its composition and weight percentage are as follows:
Zinc: 2.0%;
Cadmium: 0.05%;
Magnesium: 3%;
Tin: 0.01%;
Indium: 0.02%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
And, described novel alloy sacrificial anode, preparation method's step is as follows:
Preparation method is fusion casting, first in process furnace, heated for controlling temperature to 700～800 ℃ make aluminium ingot fusing, according to recipe ratio, calculate respectively and weigh zinc, cadmium, magnesium, tin and indium, in the aluminium liquid of melting, order is added five kinds of elements respectively again, and slagging-off after stirring with graphite rod, then alloy molten solution is cast in mould, cooling rear taking-up anode is product.
Advantage of the present invention and positively effect are:
The preparation technology of sacrificial anode of the present invention is simple, and elementary composition is easy to get, with low cost, and work-ing life is longer, and the chemical property of product is good, and the open circuit potential wherein entirely soaking in seawater under environment is-1.18～-1.10; Operating potential is-1.12～-1.05; Electrical capacity >=2700Ah/kg; Current efficiency >=92%, product easily comes off, and surface dissolution is even, functional, has good practical function in application.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1
A novel alloy sacrificial anode, its composition and weight percentage are as follows:
Zinc: 1.0%;
Cadmium: 0.02%;
Magnesium: 1.9%;
Tin: 0.0015%;
Indium: 0.011%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
Above-mentioned novel alloy sacrificial anode, preparation method's step is as follows:
Preparation method is fusion casting, first in process furnace, heated for controlling temperature to 700～800 ℃ make aluminium ingot fusing, according to recipe ratio, calculate respectively and weigh zinc, cadmium, magnesium, tin and indium, in the aluminium liquid of melting, order is added five kinds of elements respectively again, and slagging-off after stirring with graphite rod, then alloy molten solution is cast in mould, cooling rear taking-up anode is product.
Embodiment 2
A novel alloy sacrificial anode, its composition and weight percentage are as follows:
Zinc: 2.0%;
Cadmium: 0.05%;
Magnesium: 3%;
Tin: 0.01%;
Indium: 0.02%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
Above-mentioned novel alloy sacrificial anode, preparation method is with embodiment 1.
Embodiment 3
A novel alloy sacrificial anode, its composition and weight percentage are as follows:
Zinc: 3.0%;
Cadmium: 0.03%;
Magnesium: 4.6%;
Tin: 0.012%;
Indium: 0.027%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
Above-mentioned novel alloy sacrificial anode, preparation method is with embodiment 1.
Claims (3)
1. a novel alloy sacrificial anode, is characterized in that: its composition and weight percentage are as follows:
Zinc: 1.0-3.0%;
Cadmium: 0.02-0.03%;
Magnesium: 1.9-4.6%;
Tin: 0.0015-0.012%;
Indium: 0.011-0.027%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
2. novel alloy sacrificial anode according to claim 1, is characterized in that: its composition and weight percentage are as follows:
Zinc: 2.0%;
Cadmium: 0.05%;
Magnesium: 3%;
Tin: 0.01%;
Indium: 0.02%;
Foreign matter content: iron≤0.11%; Copper≤0.003%; Silicon≤0.11%;
Surplus is aluminium.
3. novel alloy sacrificial anode according to claim 1 and 2, it is characterized in that: preparation method's step is as follows: preparation method is fusion casting, first in process furnace, heated for controlling temperature to 700～800 ℃ make aluminium ingot fusing, according to recipe ratio, calculate respectively and weigh zinc, cadmium, magnesium, tin and indium, in the aluminium liquid of melting, order is added five kinds of elements respectively again, and slagging-off after stirring with graphite rod, then alloy molten solution being cast in mould, cooling rear taking-up anode is product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410157457.3A CN104018163A (en) | 2014-04-18 | 2014-04-18 | Novel alloy sacrificial anode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410157457.3A CN104018163A (en) | 2014-04-18 | 2014-04-18 | Novel alloy sacrificial anode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104018163A true CN104018163A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410157457.3A Pending CN104018163A (en) | 2014-04-18 | 2014-04-18 | Novel alloy sacrificial anode |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779830A (en) * | 2016-04-06 | 2016-07-20 | 中国兵器科学研究院宁波分院 | Easy-to-corrode aluminum alloy material and preparation method thereof |
| CN107849645A (en) * | 2015-07-08 | 2018-03-27 | 株式会社Uacj | Aluminum alloy clad sheet and its manufacture method and the heat exchanger using the aluminum alloy clad sheet |
| CN109855166A (en) * | 2018-12-12 | 2019-06-07 | 北京金旗舰暖通科技有限公司 | A kind of anticorrosion heat sink |
| CN110387493A (en) * | 2019-08-30 | 2019-10-29 | 昆山宏翔铝业有限公司 | A kind of processing proportion of indium kirsite aluminium |
-
2014
- 2014-04-18 CN CN201410157457.3A patent/CN104018163A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107849645A (en) * | 2015-07-08 | 2018-03-27 | 株式会社Uacj | Aluminum alloy clad sheet and its manufacture method and the heat exchanger using the aluminum alloy clad sheet |
| US10625379B2 (en) | 2015-07-08 | 2020-04-21 | Uacj Corporation | Aluminum alloy cladding material, manufacturing method therefor, and heat exchanger using said aluminum alloy cladding material |
| CN105779830A (en) * | 2016-04-06 | 2016-07-20 | 中国兵器科学研究院宁波分院 | Easy-to-corrode aluminum alloy material and preparation method thereof |
| CN109855166A (en) * | 2018-12-12 | 2019-06-07 | 北京金旗舰暖通科技有限公司 | A kind of anticorrosion heat sink |
| CN109855166B (en) * | 2018-12-12 | 2022-02-22 | 北京金旗舰暖通科技有限公司 | Anti-corrosion radiator |
| CN110387493A (en) * | 2019-08-30 | 2019-10-29 | 昆山宏翔铝业有限公司 | A kind of processing proportion of indium kirsite aluminium |
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Application publication date: 20140903 |
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| WD01 | Invention patent application deemed withdrawn after publication |