CN106733557A - The surface treatment method of rail traffic vehicles - Google Patents
The surface treatment method of rail traffic vehicles Download PDFInfo
- Publication number
- CN106733557A CN106733557A CN201611217804.2A CN201611217804A CN106733557A CN 106733557 A CN106733557 A CN 106733557A CN 201611217804 A CN201611217804 A CN 201611217804A CN 106733557 A CN106733557 A CN 106733557A
- Authority
- CN
- China
- Prior art keywords
- putty
- car body
- body surface
- treatment method
- rail traffic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004381 surface treatment Methods 0.000 title claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 229920000728 polyester Polymers 0.000 claims abstract description 22
- 239000003365 glass fiber Substances 0.000 claims abstract description 20
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims abstract description 13
- 230000007812 deficiency Effects 0.000 claims abstract description 12
- 239000004593 Epoxy Substances 0.000 claims abstract description 11
- 239000003973 paint Substances 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims abstract description 6
- 230000007547 defect Effects 0.000 claims abstract description 5
- 238000007667 floating Methods 0.000 claims abstract description 5
- 238000005498 polishing Methods 0.000 claims abstract description 5
- 238000005488 sandblasting Methods 0.000 claims description 8
- 239000004576 sand Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000004519 grease Substances 0.000 claims description 4
- 238000005422 blasting Methods 0.000 claims description 3
- 239000012459 cleaning agent Substances 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 229920006305 unsaturated polyester Polymers 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000271559 Dromaiidae Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2503/00—Polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2508/00—Polyesters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of surface treatment method of rail traffic vehicles, comprise the following steps：1) car body surface is pre-processed；2) epoxy primer is sprayed；3) glass fibre putty is scratched：Car body surface commissure, the deeper region of depression and the larger position of deformation are made up a deficiency using glass fibre putty, until car body surface is substantially smooth；4) elastic polyester putty is scratched：Glass fibre putty surface, then repeatedly blade coating elastic polyester putty are polished and clean, until car body surface is substantially flat；5) spraying polyurethane floating coating, car body surface flatness is checked again for after drying, elastic polyester putty is reused if also having and being recessed to be made up a deficiency, tiny flaw is searched again and using elastic polyester putty equating after drying polishing, until car body surface zero defect；6) spraying polyurethane colored paint.The method can make car body surface reach good flatness and performance attractive in appearance, and car body surface coating cracking can be effectively solved the problems, such as again.
Description
Technical field
The invention belongs to the process of surface treatment field of rail traffic vehicles, and in particular to one kind is directed to rail traffic vehicles
Weld seam, the surface treatment method at be recessed deeper region and the larger position of deformation.
Background technology
Rail traffic vehicles use welding technology because of car body big parts, and per pass weld seam all has different degrees of welding and becomes
Shape, surface smoothness is poor.To obtain good outward appearance, surface of vehicle need to scratch putty.
At present, the conventional material of rail traffic vehicles putty blade coating operation is Unsaturated polyester putty, because of unsaturated polyester (UP)
Putty blade coating after-contraction is larger, and easily cracking, inconvenience is caused to car operation and later maintenance.To prevent putty from opening
Split, domestic main engine plants are mostly using reduction putty layer thickness, the method for reducing surface of vehicle flatness.
However, at present at surface of country's neither one on vehicle weld seam, the deeper region of depression and the larger position of deformation
Reason method, can reach good flatness and performance attractive in appearance, while can also effectively prevent putty from ftractureing.
The content of the invention
In order to overcome above-mentioned technological deficiency, the present invention to provide a kind of surface treatment method of rail traffic vehicles, the method
Car body surface can be made to reach good flatness and performance attractive in appearance, car body surface coating cracking can be effectively solved the problems, such as again.
The technical solution adopted by the present invention is：A kind of surface treatment method of rail traffic vehicles, comprises the following steps：
1) car body surface is pre-processed；
2) epoxy primer is sprayed：Terminate to complete the spraying to car body epoxy primer in 4h in pretreatment, and do at room temperature
Dry more than 16h；
3) glass fibre putty is scratched：Using glass fibre putty to car body surface commissure, the deeper region of depression and change
The larger position of shape is made up a deficiency, until car body surface is substantially smooth；
4) elastic polyester putty is scratched：Glass fibre putty surface, then repeatedly blade coating elastic polyester putty are polished and clean,
Until car body surface is substantially flat；
5) spraying polyurethane floating coating, car body surface flatness is checked again for after drying, and is reused if also having and being recessed
Elastic polyester putty is made up a deficiency, and tiny flaw is searched again and using elastic polyester putty equating after drying polishing, until car
Body surface face zero defect；
6) spraying polyurethane colored paint.
Compared to prior art, a kind of surface treatment method of rail traffic vehicles of the invention can effectively improve track
The surface smoothness (being less than 1mm/m) of vehicular traffic weld seam, sunk area and the larger position of deformation, while what car body surface was formed
The material modulus and intensity of composite coating are also further enhanced, and effectively prevent the cracking of coating, it is ensured that the normal fortune of vehicle
Battalion.
Further, step 1) in pretreatment include cleaning and spray, car body surface is carried out first by cleaning agent
Cleaning, it is ensured that grease, cull and dust etc. are removed complete；Then car body surface section bar is sprayed using automatic sand blasting machine people
Sand treatment, sandblasting pellet is 40 mesh Brown Alundums, and roughness is 6.3 μm after sandblasting<Ra<12.5μm.Car body surface is cleaned
Treatment, cleans car body surface, without the materials such as grease, cull and dust residual；And sprinkling treatment obtains car body surface stress
Release, while obtaining certain roughness, is easy to the carrying out of subsequent handling.
Further, step 3) before blade coating glass fibre putty first to commissure, being recessed deeper region and deforms larger
The epoxy primer at position is polished and is cleaned, and more than 0.5h is dried at room temperature for after blade coating glass fibre putty.It is preferred that using
80 mesh sand papering commissures, the epoxy primer at be recessed deeper region and the larger position of deformation；When scraping Tu glass fibre putty,
If weld penetration is more than 3mm, need to be made up a deficiency at twice, it is ensured that sunk area is complete by putty filling.
Further, step 4) it is middle using 80 mesh sand papering glass fibre putty surfaces.
Further, step 4) in repeatedly blade coating elastic polyester putty when, scrape every time Tu thickness be no more than 1mm.
Further, step 4) in repeatedly blade coating elastic polyester putty after be dried at room temperature for more than 3h.
Further, step 5) in be dried at room temperature for more than 16h after spraying polyurethane floating coating.
Further, step 5) in dry polishing after spray white polyurethane finish paint, searched under the conditions of bloom it is small lack
Fall into, and use elastic polyester putty equating.By spray white polyurethane finish paint can further improve face of weld glossiness with
Just tiny flaw is further searched for, so as to ensure car body surface zero defect.
Brief description of the drawings
Specific embodiment of the invention is described in further detail below in conjunction with the accompanying drawings, wherein：
Fig. 1 is a kind of flow chart of the surface treatment method of rail traffic vehicles of the invention.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Fig. 1 is referred to, it is a kind of flow chart of the surface treatment method of rail traffic vehicles of the present embodiment.This implementation
Example is processed EMUs drivers' cab surface weld, specifically includes following steps：
1) pre-process；Cleaning treatment is carried out to the region using cleaning agent in advance, it is ensured that grease, cull and dust etc. are removed
Completely；Then blasting treatment is carried out to its surface using automatic sand blasting machine people, to reach the release of surface stress, while obtaining
Certain roughness.Roughness after blasting treatment is 6.3 μm<Ra<12.5 μm, sandblasting pellet is 40 mesh Brown Alundums.
2) epoxy primer is sprayed：Terminate to complete the spraying to drivers' cab surface epoxy primer in 4h in pretreatment, and in room
More than 16h is dried under temperature, primer dry films thickness is 80 μm；
3) glass fibre putty is scratched：It is then right using the epoxy primer and clean surface of 80 mesh sand papering commissures
Face of weld scratches glass fibre putty.If weld penetration is made up a deficiency at twice more than 3mm, during making up a deficiency every time all
Certain power need to be applied on scraper, it is ensured that welded seam area is complete by the filling of glass fibre putty, and need to make up a deficiency basic to surface
It is smooth；After blade coating more than 0.5h is dried under normal temperature.
4) elastic polyester putty is scratched：After glass fibre putty is dried completely, using 80 mesh sand papering surfaces and clearly
It is clean, elastic polyester putty is repeatedly then scratched using long slab scraper, blade coating thickness is no more than 1mm every time, makes up a deficiency always to surface
Untill substantially flat；More than 3h is dried at room temperature for after scraping Tu elastic polyester putty.
5) the spraying polyurethane floating coating after elastic polyester putty is completely dried, middle painting thickness of dry film control is on 50 μm of left sides
The right side, dries more than 16h at room temperature.After middle painting is dried, drivers' cab face of weld is checked, continue to make if locally having depression
With elastic polyester putty leveling；To improve face of weld gloss, it is easy to further search for defect, spraying is white after middle painting is dried
Color polyurethane finish, white finish paint thickness of dry film control dries more than 16h at room temperature at 50 μm；In high glaze effect, paint is searched
Film surface tiny flaw, and using the repairing levelling sunk area of body solder, further improve the flatness of face of weld.
6) spraying polyurethane colored paint：After face of weld flatness is less than 1mm/m, by art designing's technical conditions to drivers' cab table
Face sprays the polyurethane colored paint of respective color, and colored paint thickness of dry film is 50 μm or so, and more than 16h is dried at room temperature.
Drivers' cab welded seam area is by after the treatment of above-mentioned process of surface treatment, flatness is less than 1mm/m, vehicle performance attractive in appearance
It is obviously improved, while enhancing the modulus and intensity of face of weld composite coating, effectively solves the problem of Cracking of coating.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, therefore
It is every without departing from technical solution of the present invention content, any modification made to above example according to technical spirit of the invention,
Equivalent variations and modification, still fall within the range of technical solution of the present invention.
Claims (8)
1. a kind of surface treatment method of rail traffic vehicles, it is characterised in that：Comprise the following steps：
1) car body surface is pre-processed；
2) epoxy primer is sprayed：Terminate to complete the spraying to car body epoxy primer in 4h in pretreatment, and be dried at room temperature for 16h
More than；
3) glass fibre putty is scratched：Using glass fibre putty to car body surface commissure, be recessed deeper region and deformation compared with
Big position is made up a deficiency, until car body surface is substantially smooth；
4) elastic polyester putty is scratched：Glass fibre putty surface, then repeatedly blade coating elastic polyester putty are polished and clean, until
Car body surface is substantially flat；
5) spraying polyurethane floating coating, car body surface flatness is checked again for after drying, and elasticity is reused if also having and being recessed
Body solder is made up a deficiency, and tiny flaw is searched again and using elastic polyester putty equating after drying polishing, until car body table
Face zero defect；
6) spraying polyurethane colored paint.
2. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 1) in
Pretreatment includes cleaning and sprays, car body surface is cleaned first by cleaning agent, it is ensured that grease, cull and dust etc. are clear
Except complete；Then blasting treatment is carried out to car body surface section bar using automatic sand blasting machine people, sandblasting pellet is 40 mesh Brown Alundums,
Roughness is 6.3 μm after sandblasting<Ra<12.5μm.
3. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 3) blade coating
Before glass fibre putty first to commissure, being recessed deeper region and deforms the epoxy primer at larger position and is polished and clearly
It is clean, it is dried at room temperature for more than 0.5h after blade coating glass fibre putty.
4. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 4) in adopt
With 80 mesh sand papering glass fibre putty surfaces.
5. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 4) in it is many
During secondary blade coating elastic polyester putty, the thickness that Tu is scraped every time is no more than 1mm.
6. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 4) in it is many
More than 3h is dried at room temperature for after secondary blade coating elastic polyester putty.
7. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 5) middle spray
More than 16h is dried at room temperature for after applying polyurethane inter-coat.
8. the surface treatment method of a kind of rail traffic vehicles according to claim 1, it is characterised in that：Step 5) in do
White polyurethane finish paint is sprayed after dry polishing, tiny flaw is searched under the conditions of bloom, and use elastic polyester putty equating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217804.2A CN106733557A (en) | 2016-12-26 | 2016-12-26 | The surface treatment method of rail traffic vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217804.2A CN106733557A (en) | 2016-12-26 | 2016-12-26 | The surface treatment method of rail traffic vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106733557A true CN106733557A (en) | 2017-05-31 |
Family
ID=58926078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611217804.2A Pending CN106733557A (en) | 2016-12-26 | 2016-12-26 | The surface treatment method of rail traffic vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106733557A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672251A (en) * | 2018-06-04 | 2018-10-19 | 广西速道汽车维修服务有限公司 | A kind of automotive lacquer method |
| CN108906554A (en) * | 2018-07-31 | 2018-11-30 | 中车成都机车车辆有限公司 | A kind of rolling stock coating layer structure and coating process |
| CN112844952A (en) * | 2020-12-29 | 2021-05-28 | 重庆星星套装门（集团）有限责任公司 | Decorative line ground color blending process |
| CN113959661A (en) * | 2021-09-07 | 2022-01-21 | 中车青岛四方机车车辆股份有限公司 | Method for detecting matching of weld coating of railway vehicle |
| CN116078642A (en) * | 2023-01-03 | 2023-05-09 | 中车长春轨道客车股份有限公司 | A kind of technology method of rail vehicle head molding construction |
| CN117507514A (en) * | 2023-11-10 | 2024-02-06 | 株洲电力机车广缘科技有限责任公司 | Cover body structure and production process of a protective cover |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456012A (en) * | 2008-12-26 | 2009-06-17 | 唐山轨道客车有限责任公司 | Painting method for high-speed motor train set |
-
2016
- 2016-12-26 CN CN201611217804.2A patent/CN106733557A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101456012A (en) * | 2008-12-26 | 2009-06-17 | 唐山轨道客车有限责任公司 | Painting method for high-speed motor train set |
Non-Patent Citations (1)
| Title |
|---|
| 杨德要等: "玻璃纤维腻子在轨道交通车辆上的应用研究", 《现代涂料与涂装》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672251A (en) * | 2018-06-04 | 2018-10-19 | 广西速道汽车维修服务有限公司 | A kind of automotive lacquer method |
| CN108906554A (en) * | 2018-07-31 | 2018-11-30 | 中车成都机车车辆有限公司 | A kind of rolling stock coating layer structure and coating process |
| CN112844952A (en) * | 2020-12-29 | 2021-05-28 | 重庆星星套装门（集团）有限责任公司 | Decorative line ground color blending process |
| CN113959661A (en) * | 2021-09-07 | 2022-01-21 | 中车青岛四方机车车辆股份有限公司 | Method for detecting matching of weld coating of railway vehicle |
| CN113959661B (en) * | 2021-09-07 | 2024-09-20 | 中车青岛四方机车车辆股份有限公司 | Testing method for matching of coating on rail vehicle welds |
| CN116078642A (en) * | 2023-01-03 | 2023-05-09 | 中车长春轨道客车股份有限公司 | A kind of technology method of rail vehicle head molding construction |
| CN117507514A (en) * | 2023-11-10 | 2024-02-06 | 株洲电力机车广缘科技有限责任公司 | Cover body structure and production process of a protective cover |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |