CN101591760A - Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof - Google Patents
Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof Download PDFInfo
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- CN101591760A CN101591760A CNA2008101868783A CN200810186878A CN101591760A CN 101591760 A CN101591760 A CN 101591760A CN A2008101868783 A CNA2008101868783 A CN A2008101868783A CN 200810186878 A CN200810186878 A CN 200810186878A CN 101591760 A CN101591760 A CN 101591760A
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Abstract
The present invention relates to a kind of anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof, anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy contains by weight percentage: rare earth cerium (Ce) 0.05～0.3%, magnesium (Mg) 1-15%, aluminium (Al) 84.55-98.75%, and total amount is not more than 0.30% impurity; Be used for steel construction surface heat spraying protection, the coating bonding force is good.The bonding strength of rare-earth-Al-Mg alloy coating and iron and steel substrate can reach 25N/mm
2, considerably beyond the 9.8N/mm of international standard ISO/DIS 206312-1989 regulation
2The requirement to the aluminum coating bonding force; The current potential of coating of the present invention is at sea water and fresh water (Cl
-Content is 500ppm) in more negative than simple sprayed aluminum layer and carbon steel (20# steel), reversal of polarity has the electro-chemical protection effect.
Description
The application be name be called anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof, the applying date be 2004,7,9, application number is dividing an application of 2004100527092 applications for a patent for invention.
Technical field
The present invention relates to the metal thermal spraying protection field of steel construction, relate in particular to a kind of anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof.
Background technology
The metal wire material that is used for thermospray that has been widely used has zinc silk, aluminium wire; The metallic coating that zinc silk and aluminium wire form can be effectively isolated metal body and external corrosive environment thereby add method that the organic coating sealing forms compound coating again, thereby prolongs the life-span of steel construction effectively.
But because the zinc mist that zinc forms in construction process can cause environmental pollution and artificial damage, the Corrosion Protection that adds outer zinc again is not as aluminum coating; The application of aluminum metal sprayed coating now more and more widely.
Recent studies show that, rare earth element plays a big part to mechanical property and the corrosion resistance nature that improves metallic substance in metallurgy.Often add rare earth element now in the material smelting process and in the metal finishing to obtain anticorrosion ability preferably.In the three gorges project construction process of China, be applied to the metal thermal spraying protection works, be used to protect the sluice gate steel construction with regard to the aluminium wire that is applied to add rare earth element.
Aluminium forms the oxide thin layer film of the densification of one deck white on the surface in air, have the superior corrosion resistance energy.In briny environment,, make oxide film (passive film) activation, thereby iron and steel is had the sacrificial protection effect because chloride ion content is higher.But under the sea water and fresh water environment, because chloride ion content is lower, often makes the rare earth aluminum coating can not obtain activation, thereby lost electro-chemical protection effect, thereby influenced the integral protection effect of compound coating iron and steel.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof, are intended to address the aforementioned drawbacks, and both can be applied to fresh water, seawater, also can be used for the sprayed with rare-earth aluminum-magnesium alloy silk material of sea water and fresh water; Keep the high characteristics of original rare earth aluminum coating bonding strength simultaneously.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy of the present invention, contain by weight percentage and be: rare earth cerium (Ce) 0.05～0.3%, magnesium (Mg) 1-15%, aluminium (Al) 84.55-98.75%, and total amount is not more than 0.30% impurity;
Preparation method of the present invention realizes by following steps:
To contain by weight percentage and be: rare earth (Re) 0.05～0.3%, magnesium (Mg) 1-15%, aluminium (Al) 20～30% is prepared burden;
The material for preparing is smelted into master alloy in smelting furnace;
With master alloy with by calculating 54.7～78.95% remaining aluminium of surplus, fully stir refining together in melting;
The fusing after liquid alloy water into the circular section extrusion billet, by drawing wire machine through repeatedly draw dial the rare-earth-Al-Mg alloy silk;
Of the present inventionly be used to make the steel construction surface protection coating and realize by following steps:
Surface treatment is carried out on steel construction surface to the desire spraying, and sandblast is to the Sa2.5 level;
Adopt flame spray gun or arc pistol that rare-earth-Al-Mg alloy silk material is sprayed to the metallic surface, form one deck rare-earth-Al-Mg alloy alloy coat in the metallic surface; Coat-thickness is between 80 to 160 μ m;
Be added with organic coating as encapsulant on the steel construction surface, encapsulant can have priming paint, intermediate coat, finish paint; Wherein: finish paint can be constructed after the steel construction assembling is finished, but priming paint must be constructed at interval no longer than 8 hours in the construction continuously of metallic coating construction back;
Compared with prior art, the invention has the beneficial effects as follows: be used for steel construction surface heat spraying protection, the coating bonding force is good.The bonding strength of rare-earth-Al-Mg alloy coating and iron and steel substrate can reach 25N/mm
2, considerably beyond the 9.8N/mm of international standard ISO/DIS 206312-1989 regulation
2The requirement to the aluminum coating bonding force; The current potential of coating of the present invention is at sea water and fresh water (Cl
-Content is 500ppm) in more negative than simple sprayed aluminum layer and carbon steel (20# steel), reversal of polarity has the electro-chemical protection effect.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail:
Embodiment 1
Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy of the present invention contains by weight percentage and is: rare earth cerium (Ce) 0.05%, magnesium (Mg) 1%, aluminium (Al) 98.75%, and the total amount impurity that equals 0.20%;
Embodiment 2
Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy of the present invention contains by weight percentage and is: rare earth cerium (Ce) 0.30%, magnesium (Mg) 15%, aluminium (Al) 84.55%, and the total amount impurity that equals 0.15%;
Embodiment 3
Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy of the present invention, contain by weight percentage and be: rare earth cerium (Ce) 0.10%, magnesium (Mg) 8%, aluminium (Al) 91.65%, and total amount is not more than 0.25% impurity;
Embodiment 4
Preparation method of the present invention realizes by following steps:
To contain by weight percentage and be: rare earth (Re) 0.3%, magnesium (Mg) 3%, aluminium (Al) 96.7% is prepared burden;
Rare earth is smelted into master alloy with magnesium and part aluminium 30% in smelting furnace;
Master alloy and remaining aluminium 66.7% together in melting, are fully stirred refining;
The fusing after liquid alloy water into the circular section extrusion billet, by drawing wire machine through repeatedly draw dial the rare-earth-Al-Mg alloy silk;
Embodiment 5
Preparation method of the present invention realizes by following steps:
To contain by weight percentage and be: rare earth (Re) 0.1%, magnesium (Mg) 5%, aluminium (Al) 30% is prepared burden;
The material for preparing is smelted into master alloy in smelting furnace;
Master alloy and remaining aluminium 64.9% together in melting, are fully stirred refining;
The fusing after liquid alloy water into the circular section extrusion billet, by drawing wire machine through repeatedly draw dial the rare-earth-Al-Mg alloy silk;
Embodiment 6
Preparation method of the present invention realizes by following steps:
To contain by weight percentage and be: rare earth (Re) 0.3%, magnesium (Mg) 5%, aluminium (Al) 30% is prepared burden;
The material for preparing is smelted into master alloy in smelting furnace;
Master alloy and remaining aluminium 64.7% together in melting, are fully stirred refining;
The fusing after liquid alloy water into the circular section extrusion billet, by drawing wire machine through repeatedly draw dial the rare-earth-Al-Mg alloy silk;
Embodiment 7
The former employing thermospray of three Cuo Backwater gates zinc in Guangdong Province adds the rubber combined coating of chlorination again and carries out anticorrosionly, only uses after 2 years, and in the extensive damage of tidal range district, also there is damage in various degree at the position under water.Adopt rare earth magnalium compound coating of the present invention to carry out anti-corrosive treatment, construction technology is as follows:
Door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to door surfaces, coating thickness is 120 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.(recoat that depends on coating itself at interval or processing requirement, schedule) this time without limits,
Embodiment 8
Adopt rare earth magnalium compound coating of the present invention that steel construction is carried out anti-corrosive treatment, construction technology is as follows:
Door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to the steel construction surface, coating thickness is 160 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.(recoat that depends on coating itself at interval or processing requirement, schedule) this time without limits,
Embodiment 9
Adopt rare earth magnalium compound coating of the present invention that steel construction is carried out anti-corrosive treatment, construction technology is as follows:
Door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to the steel construction surface, coating thickness is 80 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.(recoat that depends on coating itself at interval or processing requirement, schedule) this time without limits,
Because the performance that the present invention has these excellences, the corrosion and protection field that can be used for engineering steel body structure surfaces such as oceanographic engineering, water conservancy, bridge, municipal administration, petrochemical industry, electric power, chemical industry and oilfield construction is specially adapted to the corrosion and protection of coastal seawater, sea water and fresh water or marine atmosphere structure.
Following table is that the corrosion potential of material in the different chlorion aqueous solution is measured (with respect to saturated calomel electrode)
| Cl ion content (%) | Rare earth aluminium (0.1Ce) (mV) | Rare earth magnalium (0.1Ce5Mg) (mV) |
| 0 | 280 | 290 |
| 0.01 | 400 | 630 |
| 0.05 | 650 | 685 |
| 0.1 | 660 | 705 |
| 0.5 | 695 | 725 |
| 1 | 710 | 750 |
| 3 | 750 | 810 |
Claims (4)
1. the application of an anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, realize by following steps:
Surface treatment is carried out on steel construction surface to the desire spraying, and sandblast is to the Sa2.5 level;
Adopt flame spray gun or arc pistol that rare-earth-Al-Mg alloy silk material is sprayed to the metallic surface, form one deck rare-earth-Al-Mg alloy alloy coat in the metallic surface; Coat-thickness is between 80 to 160 μ m;
Be added with organic coating as encapsulant on the steel construction surface, encapsulant can have priming paint, intermediate coat, finish paint; Wherein: finish paint can be constructed after the steel construction assembling is finished, but priming paint must be constructed at interval no longer than 8 hours in the construction continuously of metallic coating construction back.
2. application according to claim 1: door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to door surfaces, coating thickness is 120 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.
3. application according to claim 1: door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to the steel construction surface, coating thickness is 160 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.
4. application according to claim 1: door surfaces is carried out sandblasting to the Sa2.5 level;
Adopt flame spray gun that the rare-earth-Al-Mg alloy silk is sprayed to the steel construction surface, coating thickness is 80 μ m;
Spraying finishes in back 4 hours, brushes the rarer epoxy seal coat of one deck on the sprayed with rare-earth aluminum-magnesium alloy layer, and coat-thickness is 20 μ m;
Spray three road epoxy glass flake coating totally 180 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101868783A CN101591760A (en) | 2004-07-09 | 2004-07-09 | Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101868783A CN101591760A (en) | 2004-07-09 | 2004-07-09 | Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100527092A Division CN1718836A (en) | 2004-07-09 | 2004-07-09 | Rare earth aluminium magnesium alloy spray coating corrosion resistant wire material, its preparation method and application |
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| Publication Number | Publication Date |
|---|---|
| CN101591760A true CN101591760A (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101868783A Pending CN101591760A (en) | 2004-07-09 | 2004-07-09 | Anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967667A (en) * | 2010-10-21 | 2011-02-09 | 东莞宜安科技股份有限公司 | Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy |
| CN103894329A (en) * | 2014-03-18 | 2014-07-02 | 甘肃农业大学 | Method for spraying surface of engineering machinery covering part |
| CN115011908A (en) * | 2022-06-14 | 2022-09-06 | 广东省源天工程有限公司 | Rare earth aluminum alloy anticorrosion thermal spraying construction method suitable for seawater environment |
| CN115478243A (en) * | 2021-06-15 | 2022-12-16 | 贵州电网有限责任公司 | Marine environment corrosion resistant high-aluminum coating and spraying method thereof |
-
2004
- 2004-07-09 CN CNA2008101868783A patent/CN101591760A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967667A (en) * | 2010-10-21 | 2011-02-09 | 东莞宜安科技股份有限公司 | Physical pretreatment and electrophoresis coating process of aluminum magnesium alloy |
| CN103894329A (en) * | 2014-03-18 | 2014-07-02 | 甘肃农业大学 | Method for spraying surface of engineering machinery covering part |
| CN115478243A (en) * | 2021-06-15 | 2022-12-16 | 贵州电网有限责任公司 | Marine environment corrosion resistant high-aluminum coating and spraying method thereof |
| CN115478243B (en) * | 2021-06-15 | 2024-05-17 | 贵州电网有限责任公司 | Marine environment corrosion resistant high-alumina paint and spraying method thereof |
| CN115011908A (en) * | 2022-06-14 | 2022-09-06 | 广东省源天工程有限公司 | Rare earth aluminum alloy anticorrosion thermal spraying construction method suitable for seawater environment |
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| Date | Code | Title | Description |
|---|---|---|---|
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI DISHENG CORROSION PROTECTION NEW MATERIAL Free format text: FORMER OWNER: SHANGHAI RUNSHI ANTICORROSIVE NEW MATERIAL TECHNOLOGY CO., LTD. Effective date: 20091016 |
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| C06 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20091016 Address after: Room 1, building 100, No. 607, Qinzhou Road, Shanghai Applicant after: Shanghai Disheng Anticorrosion New Material Technology Co., Ltd. Address before: Room 19B, No. 277 Siping Road, Shanghai Applicant before: Shanghai Runshi Corrosion & Protection New Material Technology Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091202 |