CN103132405A - Anti-corrosion treatment method for exotic metal structures of maglev steel rails - Google Patents
Anti-corrosion treatment method for exotic metal structures of maglev steel rails Download PDFInfo
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- CN103132405A CN103132405A CN2013100607804A CN201310060780A CN103132405A CN 103132405 A CN103132405 A CN 103132405A CN 2013100607804 A CN2013100607804 A CN 2013100607804A CN 201310060780 A CN201310060780 A CN 201310060780A CN 103132405 A CN103132405 A CN 103132405A
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Abstract
The invention relates to an anti-corrosion treatment method for exotic metal structures of maglev steel rails. The anti-corrosion treatment method includes steps of cleaning attachments, rust and oxide layers on the surfaces of aluminum alloy profiles and F-shaped steel guide rails; coating aluminum-rich coatings on the surfaces, contacting with the F-shaped steel guide rails, of the aluminum alloy profiles, and coating zinc-based plated coatings on the surfaces, contacting with the aluminum alloy profiles, of the F-shaped steel guide rails; and fitting the aluminum alloy profiles and the F-shaped steel guide rails with H-shaped steel rail sleepers according to the prior art after coatings are coated. Two protective layers of the aluminum-rich coating layer/zinc-based plated coating layer are formed between the aluminum alloy profile and the F-shaped steel guide rails, so that galvanic corrosion between the aluminum alloy profiles and the F-shaped steel guide rails are prevented, corrosion resistance of the maglev steel rails is improved, and the service life is prolonged.
Description
Technical field
The present invention relates to the method for anticorrosion treatment between a kind of different metal, relate in particular to a kind of different metal construction method for anticorrosion treatment of middle low speed magnetic suspension rail that is applicable to, belong to the technical field that anti-corrosion of metal is processed.
Background technology
The track of middle low speed magnetic suspension train and common rail are different, and it adopts F shaped steel guide rail, and its section of track processing, installation accuracy and track line style directly affect the train operation stationarity.Middle low speed magnetic suspension rail is by steel mill's direct rolling and forming, and supporting rail assembly is for China's low speed magnetic suspension railway traffic engineering has solved great difficult problem.Middle low speed magnetic suspension rail generally is comprised of F shaped steel guide rail, H shaped steel sleeper and aluminium alloy extrusions; Securing member, sunk screw and pin by carbon steel are connected connection.F shaped steel guide rail, H shaped steel sleeper are Mn-Cu type economical and weather resistant steel, and aluminium alloy section surface carries out anodization.Traditional track traffic is generally not carry out anticorrosive coating to process with rail, but for middle low speed magnetic suspension rail, because the design service life is long, work condition environment is complicated, engineering design requires to carry out anticorrosive coating, to adapt to the condition of work of middle low speed magnetic suspension rail.What abroad (as Japan) adopted for the different metal construction preservative treatment of magnetic suspension rail is the electric conductivity between the different metal construction of low speed magnetic suspension rail during the application sealing compound is blocked, thereby plays the electrochemical corrosion that hinders between different metal.But because sealing compound exists that cost is high, complicated construction technique and the problem such as colloid is aging, not the ideal scheme of middle low speed magnetic suspension rail corrosion protection design.
Summary of the invention
For the deficiencies in the prior art, the invention provides the different metal construction method for anticorrosion treatment of a kind of magnetic suspension rail, be suitable for the preservative treatment of the different metal construction of middle low speed magnetic suspension rail.
The term explanation
Aluminium alloy extrusions: aluminium alloy extrusions of the present invention refers to cover the track segment of the aluminum alloy material of F shaped steel guide rail upper surface, is magnetic suspended railway track technical field section component commonly used.
F shaped steel guide rail: F shaped steel guide rail of the present invention refers to the guide rail that the magnetic suspended railway track is used, and is made by the F structural section, is magnetic suspended railway track technical field section component commonly used.
Rich aluminium paint: rich aluminium paint of the present invention refers to the metal surface anticorrosion coating material that the anticorrosive paint technical field is commonly used, uses according to existing conventional using method.
Zinc-base plating dope: Zinc-base plating dope of the present invention refers to the metal surface anticorrosion coating material that the anticorrosive paint technical field is commonly used, uses according to existing conventional using method.
Coating dry film thickness: refer to coating normal temperature cure thickness afterwards.
The different metal construction preservative treatment of magnetic suspension rail: refer to the different F shaped steel guide rail of low speed magnetic suspension rail in forming and the different metal construction that covers between the aluminium alloy extrusions of F shaped steel guide rail upper surface are carried out preservative treatment.
Technical scheme of the present invention is as follows:
The different metal construction method for anticorrosion treatment of a kind of magnetic suspension rail comprises forming the different F shaped steel guide rail of magnetic suspension rail and the preservative treatment that covers the different metal construction of aluminium alloy extrusions of F shaped steel guide rail upper surface, comprises that step is as follows:
(1) aluminium alloy section surface and F shaped steel guide rail surface are cleared up, removed its surperficial attachment and corrosion and oxide layer;
(2) after cleaning is completed, to the rich aluminium paint of the external coating of the contacted aluminium alloy extrusions of F shaped steel guide rail, to the contacted F shaped steel of aluminium alloy extrusions guide rail surface application Zinc-base plating dope.
Preferred according to the present invention, in described step (2), rich aluminium paint is the rich aluminium paint of HD4001, and Zinc-base plating dope is the HDX6000 Zinc-base plating dope, dry film zinc content 96%～96.5% mass ratio.
Preferred according to the present invention, in described step (1), the cleaning of aluminium alloy section surface is adopted less than the dried compressed air of 20% relative humidity and carried out the spary cleaning, make aluminium alloy section surface drying after cleaning, free from dust, without grease, without dirt, without attachment; Sandblast or ball blast are adopted in cleaning to F shaped steel guide rail surface, make F shaped steel guide rail surface drying after cleaning, free from dust, without grease, without dirt, without the rust staining attachment, the surfacing quality reaches " steel surface rusting grade and derusting grade before application " (GB8923-88) standard code.
Preferred according to the present invention, in described step (2) to the rich aluminium paint of the application of aluminium alloy section surface, are all the methods that adopt airless spraying or roller coat to the application Zinc-base plating dope of F shaped steel guide rail surface;
Further preferred, in step (2), be to carry out under 5～25 ℃, the painting environment of 45～85% relative humidity to the rich aluminium paint of the application of aluminium alloy section surface.
Further preferred, in step (2), be at-15 ℃～50 ℃ to the application Zinc-base plating dope of F shaped steel guide rail surface, carry out under the painting environment of 45～95% relative humidity.
Preferred according to the present invention, the rich aluminium paint coating dry film thickness to the aluminium alloy section surface application in described step (2) is 20～100 μ m; Zinc-base plating dope coating dry film thickness to the application of F shaped steel guide rail surface is 80～160 μ m.
Further preferred, the rich aluminium paint coating dry film thickness to the aluminium alloy section surface application in described step (2) is 20～30 μ m, is 80～100 μ m to the Zinc-base plating dope coating dry film thickness of F shaped steel guide rail surface application.
Further preferred, in described step (2), to twice Zinc-base plating dope of F shaped steel guide rail surface application, be 2～5h the interval time of twice application, is coated with for the first time to be contained within 8h and completes.
Further preferred, in described step (2) to the application mode of F shaped steel guide rail be: adopt airless spraying, keep spray apart from 300～380mm; Spraying swath 150～400mm, the lance ejection angle is 30～80 °, and the spraying swath lap width is 1/6～1/4 of fabric width, and the spray gun speed of service is 70cm/s.
After the described paint spraying of completing steps (2) is processed, aluminium alloy extrusions and F shaped steel guide rail are assembled according to prior art and H shaped steel sleeper, be connected connection with fastening bolt, sunk screw and pin.Preferably, assemble link used (pin and screw) and also process through anticorrosive coating, get final product by prior art.
The rich aluminium paint of HD4001, HDX6000 Zinc-base plating dope market are on sale, and application process is referring to product description.
The present invention uses domestic metal anti-corrosive paint, and the coating process standardization is so that factory's anticorrosive coating and standard assemblied, changes in the past by on-the-spot gluing construction, and the process route of site assembly operation has improved the construction environment of application.The rich aluminium paint of HD4001 is take aluminum paste and acrylic resin as the chief component composition; make coating also have insulating properties; can also hinder simultaneously the infiltration path of gas, liquid; for protected metal carrying supplies good shielding protection; even after coating structure is damaged; aluminium powder in coating can also be in the mode of sacrificed anticathode, and protection contains HDX6000 Zinc-base plating coating.
The present invention has following beneficial effect:
1, the present invention adopts the rich aluminium paint to aluminium alloy extrusions application HD4001, contains the HDX6000 Zinc-base plating dope of the active pure zinc of 96wt% for the application of F shaped steel guide rail; Form the composite construction of the rich aluminium Tu of Lv He Jin ∕ Ceng ∕ Zinc-base plating Tu Ceng ∕ F shaped steel guide rail between aluminium alloy extrusions and F shaped steel guide rail; namely be provided with the two-layer topping of rich aluminium Tu Ceng ∕ Zinc-base plating coating between aluminium alloy extrusions and F shaped steel rail; galvanic corrosion between aluminium alloy extrusions and F shaped steel guide rail is played blocking effect; increase the resistance to corrosion of magnetic suspension rail, extended application life.
2, the coating of the present invention's employing is domestic specialty metal anticorrosive paint, and the coating process standardization was so that factory's anticorrosive coating and standard assemblied had changed in the past and constructed by on-the-spot gluing, and the process route of site assembly operation makes technique easier.
3, the present invention has improved the construction environment of application, has shortened construction period, has reduced engineering cost, hinders different Galvanic Corrosion of Dissimilar Metals with conductor insulation, shielding protection and three kinds of modes of sacrificed anticathode, has extended the anticorrosion life-span of middle low speed magnetic suspension rail.
Description of drawings
Fig. 1 is the structural representation of the middle low speed magnetic suspension train track after assembling in the embodiment of the present invention 1; Wherein, 1:F shaped steel guide rail, 2:H shaped steel sleeper, 3: fastening bolt, 4: pin, 5: sunk screw, 6: aluminium alloy extrusions.
Fig. 2 is the anticorrosion structure schematic diagram of the embodiment of the present invention 1 middle orbit; Wherein, 1:F shaped steel guide rail, 6: aluminium alloy extrusions, 7: rich aluminized coating, 8: the Zinc-base plating coating.
The specific embodiment
Also the present invention will be further described by reference to the accompanying drawings below by specific embodiment, but be not limited to this.
In embodiment, material and facility used is existing conventional equipment, commercial product.
(1) aluminium alloy extrusions 6 surface and F shaped steel guide rail 1 surface are cleared up, removed its surperficial attachment and corrosion and oxide layer;
Adopt the gases at high pressure spray gun to carry out the spary cleaning to aluminium alloy extrusions 6 surfaces, remove the attachment on aluminium alloy extrusions 6 surfaces, spray gun pressure is controlled at 0.6～0.9MPa; Aluminium alloy extrusions 6 surfacing quality reach drying, free from dust, without grease, without dirt, without attachment; Compressed air drying, the cleaning of the ejection of gases at high pressure spray gun, relative humidity is less than 20%;
F shaped steel guide rail 1 is carried out blasting treatment, remove corrosion, oxide skin and other attachment on F shaped steel guide rail 1 surface; F shaped steel guide rail 1 surfacing quality reaches drying, free from dust, without grease, without dirt, without the rust staining attachment, meet " steel surface rusting grade and derusting grade before application " (GB8923-88) cleannes Sa2.5 level roughness 35～50 μ m of standard code; The selected sand grains cleannes of sandblast satisfy the national standard requirement, granularity between 0.5～1.5mm, compressed air drying used, cleaning, relative humidity is less than 20%;
(2) after cleaning is completed, to the rich aluminium paint of the external coating of aluminium alloy extrusions 6, to F shaped steel guide rail 1 external coating Zinc-base plating dope.
Adopt the rich aluminium paint of HD4001 of Shenyang Hangda Technology Co.,Ltd, it is made of Hydroxylated acrylic resin, aluminum paste, solvent and auxiliary agent; HD4001 is rich, and aluminium paint is divided into two components: the A component is the coating slurry, and the B component is curing compound.A component coating slurry with HD4001 coating, with B component curing compound, by weight be the ratio mixing and stirring of 6:1, then 30～35% the toluene that adds A component and B component mixing gross weight is as thinner, stir after 20 minutes, application is carried out on the surface of aluminium alloy extrusions 6.Adopt the airless spraying method, at 20～25 ℃, carry out application under the painting environment of 45～85% relative humidity; And measure wet-film thickness with wet film thickness gauge at any time, make coating dry film thickness at 20～30 μ m.
Adopt the HDX6000 Zinc-base plating dope of Shenyang Hangda Technology Co.,Ltd to F shaped steel guide rail 1 external coating, the HDX6000 Zinc-base plating dope is comprised of super-fine zinc dust, resinene, thinner, antisettling agent and dispersing agent, and its dry film zinc content is 96wt%.Adopt the airless spraying method, at 20～25 ℃, carry out application under the painting environment of 75～95% relative humidity; During application, keep spray apart from 300～380mm; Spraying swath 150～400mm is advisable with 300mm, and the lance ejection angle is 30～80 °; The spraying swath lap width is 1/6～1/4 of fabric width; The spray gun speed of service is about 70cm/s; F shaped steel guide rail 1 surface is cleared up within rear 8 hours and is completed application for the first time, carries out application for the second time after 2h and measures wet-film thickness with wet film thickness gauge at any time, makes coating dry film thickness after twice application at 80～100 μ m.
The different metal construction method for anticorrosion treatment of a kind of magnetic suspension rail, as embodiment 1, different is to the coating process of the application employing roller coat on aluminium alloy extrusions 6 surfaces and F shaped steel guide rail 1 surface, be at 5～10 ℃, under the painting environment of 45～60% relative humidity, application carried out on aluminium alloy extrusions 6 surface and F shaped steel guide rail 1 surface.
The different metal construction method for anticorrosion treatment of a kind of magnetic suspension rail, as embodiment 1, the rich aluminium paint coating dry film of the HD4001 THICKNESS CONTROL on different is aluminium alloy extrusions 6 surfaces is at 90～100 μ m.After twice application, the HDX6000 Zinc-base plating dope coating dry film THICKNESS CONTROL on F shaped steel guide rail 1 surface is at 140～160 μ m.
Embodiment 4
The different metal construction method for anticorrosion treatment of a kind of magnetic suspension rail, as embodiment 1, different is before application, F shaped steel guide rail 1 to be carried out Shot Blasting.
Claims (9)
1. the different metal construction method for anticorrosion treatment of magnetic suspension rail, comprise forming the different F shaped steel guide rail of magnetic suspension rail and the preservative treatment that covers the different metal construction of aluminium alloy extrusions of F shaped steel guide rail upper surface, comprises that step is as follows:
(1) aluminium alloy section surface and F shaped steel guide rail surface are cleared up, removed its surperficial attachment and corrosion and oxide layer;
(2) after cleaning is completed, to the rich aluminium paint of the external coating of the contacted aluminium alloy extrusions of F shaped steel guide rail, to the contacted F shaped steel of aluminium alloy extrusions guide rail surface application Zinc-base plating dope.
2. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, is characterized in that in step (2), rich aluminium paint is the rich aluminium paint of HD4001; Described Zinc-base plating dope is the HDX6000 Zinc-base plating dope, dry film zinc content 96%～96.5% mass ratio.
3. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, it is characterized in that in step (1) cleaning of aluminium alloy section surface is adopted less than the dried compressed air of 20% relative humidity and carry out the spary cleaning, make aluminium alloy section surface drying after cleaning, free from dust, without grease, without dirt, without attachment; Sandblast or ball blast are adopted in cleaning to F shaped steel guide rail surface, make F shaped steel guide rail surface drying after cleaning, free from dust, without grease, without dirt, without the rust staining attachment, the surfacing quality reaches " steel surface rusting grade and derusting grade before application " GB8923-88 standard code.
4. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1 is characterized in that in step (2) that to the rich aluminium paint of the application of aluminium alloy section surface, to the application Zinc-base plating dope of F shaped steel guide rail surface are all the methods that adopt airless spraying or roller coat.
5. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, is characterized in that in step (2), is to carry out under 5～25 ℃, the painting environment of 45～85% relative humidity to the rich aluminium paint of the application of aluminium alloy section surface.
6. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, is characterized in that in step (2), is at-15 ℃～50 ℃ to the application Zinc-base plating dope of F shaped steel guide rail surface, carries out under the painting environment of 45～95% relative humidity.
7. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, is characterized in that in step (2), the rich aluminium paint coating dry film thickness to the aluminium alloy section surface application is 20～100 μ m; Zinc-base plating dope coating dry film thickness to the application of F shaped steel guide rail surface is 80～160 μ m.
8. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, it is characterized in that in step (2) twice Zinc-base plating dope of F shaped steel guide rail surface application, be 2～5h the interval time of twice application, is coated with for the first time to be contained within 8h and completes.
9. the different metal construction method for anticorrosion treatment of magnetic suspension rail according to claim 1, is characterized in that in step (2), the application mode to F shaped steel guide rail is: adopt airless spraying, keep spray apart from 300～380mm; Spraying swath 150～400mm, the lance ejection angle is 30～80 °, and the spraying swath lap width is 1/6～1/4 of fabric width, and the spray gun speed of service is 70cm/s.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310060780.4A CN103132405B (en) | 2013-02-26 | 2013-02-26 | Anti-corrosion treatment method for exotic metal structures of maglev steel rails |
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| CN201310060780.4A CN103132405B (en) | 2013-02-26 | 2013-02-26 | Anti-corrosion treatment method for exotic metal structures of maglev steel rails |
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| CN103132405A true CN103132405A (en) | 2013-06-05 |
| CN103132405B CN103132405B (en) | 2015-04-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436500A (en) * | 2016-11-15 | 2017-02-22 | 湖南省冶金材料研究院 | Guide rail for magnetic suspension and preparation method thereof |
| CN108102534A (en) * | 2017-12-28 | 2018-06-01 | 安徽鑫铂铝业股份有限公司 | A kind of automobile using antifungi aluminium alloy extrusions preparation method |
| CN108327798A (en) * | 2017-01-19 | 2018-07-27 | 福特全球技术公司 | Vehicle loading system |
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| JP3797569B2 (en) * | 1996-03-28 | 2006-07-19 | エイチ・エス・エス・ティ開発株式会社 | Mounting the reaction plate on the rail for the linear motor car |
| CN1884616A (en) * | 2006-06-23 | 2006-12-27 | 攀枝花钢铁(集团)公司 | Corrosion-resistant railway rail and production method thereof |
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
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2013
- 2013-02-26 CN CN201310060780.4A patent/CN103132405B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3797569B2 (en) * | 1996-03-28 | 2006-07-19 | エイチ・エス・エス・ティ開発株式会社 | Mounting the reaction plate on the rail for the linear motor car |
| CN1884616A (en) * | 2006-06-23 | 2006-12-27 | 攀枝花钢铁(集团)公司 | Corrosion-resistant railway rail and production method thereof |
| CN102154610A (en) * | 2010-02-11 | 2011-08-17 | 上海建冶科技工程股份有限公司 | Construction technology for anticorrosive composite coating of steel structure |
Non-Patent Citations (1)
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| 邢甲第等: "钢铝复合接触轨的典型结构及其制造工艺", 《城市轨道交通研究》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106436500A (en) * | 2016-11-15 | 2017-02-22 | 湖南省冶金材料研究院 | Guide rail for magnetic suspension and preparation method thereof |
| CN106436500B (en) * | 2016-11-15 | 2018-08-31 | 湖南省冶金材料研究院 | A kind of magnetic suspension guide rail and preparation method thereof |
| CN108327798A (en) * | 2017-01-19 | 2018-07-27 | 福特全球技术公司 | Vehicle loading system |
| CN108102534A (en) * | 2017-12-28 | 2018-06-01 | 安徽鑫铂铝业股份有限公司 | A kind of automobile using antifungi aluminium alloy extrusions preparation method |
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| CN103132405B (en) | 2015-04-08 |
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