CN1718836A - Rare earth aluminium magnesium alloy spray coating corrosion resistant wire material, its preparation method and application - Google Patents
Rare earth aluminium magnesium alloy spray coating corrosion resistant wire material, its preparation method and application Download PDFInfo
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- CN1718836A CN1718836A CNA2004100527092A CN200410052709A CN1718836A CN 1718836 A CN1718836 A CN 1718836A CN A2004100527092 A CNA2004100527092 A CN A2004100527092A CN 200410052709 A CN200410052709 A CN 200410052709A CN 1718836 A CN1718836 A CN 1718836A
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Abstract
An anticorrosive REAlMg alloy wire able to be sprayed on the surface of iron or steel substrate for generating an electro chemical protection layer contains Ce (0.05-0.3 wt%), Mg (1-15), Al (84.55-98.75) and impurities (0-0.3). Its advantages are high adhesion of coated layer and high effect.
Description
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 (10)
1. anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy is characterized in that: contain by weight percentage and be: rare earth cerium (Ce) 0.05～0.3%, and magnesium (Mg) 1-15%, aluminium (Al) 84.55-98.75%, and total amount is not more than 0.30% impurity.
2. anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy according to claim 1 is characterized in that: wherein: rare earth cerium (Ce) 0.1%, magnesium (Mg) 8%, aluminium (Al) 91.65%, and the total amount impurity that equals 0.25%.
3. preparation method as claim 1 anticorrosive wire material sprayed with rare-earth aluminum-magnesium alloy, realize 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.
4. method according to claim 3: will 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
5. method according to claim 3: will 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.
6. method according to claim 3: will 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.
7. application as claim 1 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.
8. application according to claim 7: 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.
9. application according to claim 7: 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.
10. application according to claim 7: 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 |
|---|---|---|---|
| CNA2004100527092A 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2004100527092A CN1718836A (en) | 2004-07-09 | 2004-07-09 | Rare earth aluminium magnesium alloy spray coating corrosion resistant wire material, its preparation method and application |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101868783A Division 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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| CN1718836A true CN1718836A (en) | 2006-01-11 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942586A (en) * | 2010-08-26 | 2011-01-12 | 西北有色金属研究院 | Aluminum alloy with high thermal conductivity |
| CN102352475A (en) * | 2011-10-16 | 2012-02-15 | 江苏中矿大正表面工程技术有限公司 | Rare earth-aluminium-magnesium alloy wire for thermal spraying |
| CN102605223A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Ce and Pr-containing aluminum titanium alloy wire and production method thereof |
| CN102605222A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | La, Ce, Pr and Nd-containing aluminum titanium alloy wire and production method thereof |
| CN102605221A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | La, Ce and Nd-containing aluminum titanium alloy wire and production method thereof |
| CN102605225A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum-titanium (Al-Ti) alloy wire containing cerium (Ce), praseodymium (Pr) and neodymium (Nd) and method for manufacturing same |
| CN102605224A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum-titanium alloy wire containing Ce and Nd, and manufacturing method thereof |
| CN102605220A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum and titanium alloy wire containing La, Ce and Pr and manufacturing method thereof |
| CN104818411A (en) * | 2015-05-21 | 2015-08-05 | 广西友合铝材有限公司 | Rare-earth aluminum-magnesium alloy material and preparation method thereof |
| CN104923775A (en) * | 2014-03-21 | 2015-09-23 | 北京碧海舟腐蚀防护工业股份有限公司 | Powder core wire for generating anticorrosion metal coating, manufacturing method for powder core wire, and coating method |
| CN107363122A (en) * | 2017-06-14 | 2017-11-21 | 飞龙精工科技(苏州)有限公司 | The preparation technology of aluminum-magnesium alloy wire |
-
2004
- 2004-07-09 CN CNA2004100527092A patent/CN1718836A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101942586A (en) * | 2010-08-26 | 2011-01-12 | 西北有色金属研究院 | Aluminum alloy with high thermal conductivity |
| CN101942586B (en) * | 2010-08-26 | 2012-01-25 | 西北有色金属研究院 | Aluminum alloy with high thermal conductivity |
| CN102352475A (en) * | 2011-10-16 | 2012-02-15 | 江苏中矿大正表面工程技术有限公司 | Rare earth-aluminium-magnesium alloy wire for thermal spraying |
| CN102352475B (en) * | 2011-10-16 | 2013-07-17 | 江苏中矿大正表面工程技术有限公司 | Rare earth-aluminium-magnesium alloy wire for thermal spraying |
| CN102605220A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum and titanium alloy wire containing La, Ce and Pr and manufacturing method thereof |
| CN102605225B (en) * | 2012-02-15 | 2013-07-31 | 江苏麟龙新材料股份有限公司 | Aluminum-titanium (Al-Ti) alloy wire containing cerium (Ce), praseodymium (Pr) and neodymium (Nd) and method for manufacturing same |
| CN102605225A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum-titanium (Al-Ti) alloy wire containing cerium (Ce), praseodymium (Pr) and neodymium (Nd) and method for manufacturing same |
| CN102605224A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Aluminum-titanium alloy wire containing Ce and Nd, and manufacturing method thereof |
| CN102605222A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | La, Ce, Pr and Nd-containing aluminum titanium alloy wire and production method thereof |
| CN102605223A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | Ce and Pr-containing aluminum titanium alloy wire and production method thereof |
| CN102605223B (en) * | 2012-02-15 | 2013-07-31 | 江苏麟龙新材料股份有限公司 | Ce and Pr-containing aluminum titanium alloy wire and production method thereof |
| CN102605221A (en) * | 2012-02-15 | 2012-07-25 | 江苏麟龙新材料股份有限公司 | La, Ce and Nd-containing aluminum titanium alloy wire and production method thereof |
| CN102605221B (en) * | 2012-02-15 | 2013-07-31 | 江苏麟龙新材料股份有限公司 | La, Ce and Nd-containing aluminum titanium alloy wire and production method thereof |
| CN102605220B (en) * | 2012-02-15 | 2013-07-31 | 江苏麟龙新材料股份有限公司 | Aluminum and titanium alloy wire containing La, Ce and Pr and manufacturing method thereof |
| CN104923775A (en) * | 2014-03-21 | 2015-09-23 | 北京碧海舟腐蚀防护工业股份有限公司 | Powder core wire for generating anticorrosion metal coating, manufacturing method for powder core wire, and coating method |
| CN104818411A (en) * | 2015-05-21 | 2015-08-05 | 广西友合铝材有限公司 | Rare-earth aluminum-magnesium alloy material and preparation method thereof |
| CN107363122A (en) * | 2017-06-14 | 2017-11-21 | 飞龙精工科技(苏州)有限公司 | The preparation technology of aluminum-magnesium alloy wire |
| CN107363122B (en) * | 2017-06-14 | 2018-12-14 | 飞龙精工科技(苏州)有限公司 | The preparation process of aluminum-magnesium alloy wire |
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