CN110639782A - Vehicle body surface putty construction process - Google Patents
Vehicle body surface putty construction process Download PDFInfo
- Publication number
- CN110639782A CN110639782A CN201910916331.2A CN201910916331A CN110639782A CN 110639782 A CN110639782 A CN 110639782A CN 201910916331 A CN201910916331 A CN 201910916331A CN 110639782 A CN110639782 A CN 110639782A
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- China
- Prior art keywords
- putty
- vehicle body
- construction process
- spraying
- car body
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- 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
- B05D7/14—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 to metal, e.g. car bodies
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The application discloses vehicle body surface putty construction technology, including the step: 1) searching a dent on the surface of the vehicle body; 2) locally repairing the dent on the surface of the vehicle body; 3) integrally spraying putty on the surface of the car body; 4) and (3) after the putty coating is dried, detecting whether the flatness of the surface of the vehicle body meets the preset flatness requirement, if not, returning to the step 1), and if so, finishing the putty construction operation. The putty construction process for the surface of the car body adopts a spraying mode to form the whole putty coating on the surface of the car body, and compared with a scraping mode, the putty construction process improves the working efficiency, reduces the labor intensity and shortens the manufacturing period of products.
Description
Technical Field
The application relates to the technical field of coating of rail transit vehicles, in particular to a construction process of putty on the surface of a vehicle body.
Background
The rail transit vehicle mainly fills the defects on the surface of the vehicle body by two-component unsaturated polyester putty so as to improve the flatness and the attractiveness of the appearance of the vehicle.
At present, the track traffic industry adopts a manual smearing mode to carry out putty operation, the working efficiency is low, the labor intensity is high, the operation time is long, and the product manufacturing period is severely limited.
Content of application
In view of this, the present application aims to disclose a vehicle body surface putty construction process, so as to improve the working efficiency, reduce the labor intensity and shorten the product manufacturing cycle.
In order to achieve the above purpose, the present application discloses the following technical solutions:
a construction process of putty on the surface of a vehicle body comprises the following steps:
1) searching a dent on the surface of the vehicle body;
2) locally repairing the dent on the surface of the vehicle body;
3) integrally spraying putty on the surface of the car body;
4) and (3) after the putty coating is dried, detecting whether the flatness of the surface of the vehicle body meets the preset flatness requirement, if not, returning to the step 1), and if so, finishing the putty construction operation.
Preferably, in the putty construction process for the surface of the vehicle body, the putty is locally repaired in the step 2) by adopting a spraying mode.
Preferably, in the putty construction process for the surface of the vehicle body, the first nozzle with the spraying pressure of 18MPa-20MPa, the spraying angle of 10-20 degrees and the caliber of 0.33mm-0.38mm is selected in the step 2) to locally repair the putty for the dent on the surface of the vehicle body.
Preferably, in the putty construction process for the surface of the vehicle body, the putty is integrally sprayed on the surface of the vehicle body by the second nozzle with the spraying pressure of 20MPa to 25MPa, the spraying angle of 40 degrees to 50 degrees and the caliber of 0.45mm to 0.51mm in the step 3).
Preferably, in the putty construction process for the surface of the car body, the first nozzle and the second nozzle are integrated in the spraying equipment, and after the putty construction operation is finished, the spraying equipment is cleaned within 5-10 min.
Preferably, in the putty construction process for the surface of the car body, the step 1) further comprises: and (5) polishing the surface of the vehicle body.
Preferably, in the putty construction process for the surface of the car body, in the step 1), 80-120-mesh sand paper is used for polishing the surface of the car body.
Preferably, in the putty construction process for the surface of the car body, the dent mark is made at the dent in the step 1).
Preferably, in the putty construction process for the surface of the car body, the leveller is adopted in the step 4) to detect the flatness of the surface of the car body.
Preferably, in the construction process of the putty on the surface of the car body, the putty is formed by mixing unsaturated polyester putty and a two-component liquid curing agent.
According to the technical scheme, the vehicle body surface putty construction process disclosed by the application comprises the following steps:
1) searching a dent on the surface of the vehicle body;
2) locally repairing the dent on the surface of the vehicle body;
3) integrally spraying putty on the surface of the car body;
4) and (3) after the putty coating is dried, detecting whether the flatness of the surface of the vehicle body meets the preset flatness requirement, if not, returning to the step 1), and if so, finishing the putty construction operation.
The putty construction process for the surface of the car body adopts a spraying mode to form the whole putty coating on the surface of the car body, and compared with a scraping mode, the putty construction process improves the working efficiency, reduces the labor intensity and shortens the manufacturing period of products.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a vehicle body surface putty construction process disclosed in the embodiment of the application.
Detailed Description
The embodiment of the application discloses a putty construction process for the surface of a vehicle body, which improves the working efficiency, reduces the labor intensity and shortens the manufacturing period of products.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to the attached drawing 1, the vehicle body surface putty construction process disclosed by the embodiment of the application comprises the following steps:
1) searching a dent on the surface of the vehicle body;
2) locally repairing the dent on the surface of the vehicle body;
3) integrally spraying putty on the surface of the car body;
4) and (3) after the putty coating is dried, detecting whether the flatness of the surface of the vehicle body meets the preset flatness requirement, if not, returning to the step 1), and if so, finishing the putty construction operation.
The putty construction process for the surface of the car body adopts a spraying mode to form the whole putty coating on the surface of the car body, and compared with a scraping mode, the putty construction process improves the working efficiency, reduces the labor intensity and shortens the manufacturing period of products.
Preferably, the putty is locally repaired in the step 2) by adopting a spraying mode. This application is all adopted the mode of spraying to local repair putty and whole spraying putty that the automobile body surface goes on, has further improved work efficiency. Of course, the local spraying repair process can be performed by selecting a traditional manual repair method.
In a specific embodiment, in the step 2), the first nozzle with the spraying pressure of 18MPa-20MPa, the spraying angle of 10-20 degrees and the caliber of 0.33mm-0.38mm is selected for locally repairing the dent on the surface of the vehicle body. The spray angle is the angle formed within the effective working area of the spray from the nozzle.
The first nozzle of this embodiment carries out local repair's spraying pressure, spraying angle, nozzle bore are less, are convenient for fill the less indent of size, reduce the putty of spraying outside the indent.
In a further technical scheme, in the step 3), a second nozzle with spraying pressure of 20MPa-25MPa, spraying angle of 40-50 degrees and caliber of 0.45-0.51 mm is selected for integrally spraying putty on the surface of the car body. The second nozzle of this embodiment carries out that whole spraying putty's spraying pressure, spraying angle, nozzle bore are great, have improved whole spraying efficiency. It is understood that the present application may also utilize the same nozzle for both local make-up and bulk spraying.
Preferably, the first nozzle and the second nozzle are integrated in the spraying equipment, and the spraying equipment is cleaned within 5-10 min after putty construction operation is finished. After the putty and the curing agent are mixed, heat is generated for accumulation, the reaction speed is accelerated, and after the field operation is finished, equipment must be cleaned within 5-10 min, so that equipment failure caused by putty curing is avoided.
In order to improve the adhesion force of the putty coating, the step 1) also comprises polishing the surface of the car body. The grinding may be performed before or after the dent of the vehicle body surface is found.
In a further technical scheme, in the step 1), 80-120-mesh sand paper is adopted to polish the surface of the vehicle body, and the operation is simple. This application can also adopt the mode of sandblast to polish.
To facilitate viewing the dimple position during local shimming, step 1) marks the dimple.
For further simplification, the step 4) adopts a level ruler to detect the flatness of the surface of the vehicle body. Of course, other means such as laser planar interferometer measurements can be used to detect the flatness of the vehicle body surface.
The putty is formed by mixing unsaturated polyester putty and a two-component liquid curing agent. Specifically, the unsaturated polyester putty is modified unsaturated polyester resin with the molecular weight of 1000-2000, and the consistency of the putty is adjusted to be between 12cm and 15cm by adopting nano-filler and coupling dispersant. In the two-component liquid curing agent, the component A is a drier consisting of unsaturated polyester polyamine with the molecular weight of 200-300 and acidic oligomer, the component B is a curing agent mainly consisting of active oxygen components, and the component A, B is mixed to form a complete curing agent system.
The vehicle body surface putty construction process of the embodiment realizes spraying construction of the two-component unsaturated polyester putty; the method comprises the following specific steps:
and (3) polishing the vehicle body base material by using 80-120-mesh sand paper to improve the adhesive force of the putty coating.
And (5) checking the surface flatness of the vehicle body by using a horizontal ruler, and marking the dents.
The spray pressure of 18MPa-20MPa, the spray angle of 10 degrees-20 degrees and the spray nozzle of 0.33mm-0.38mm are selected to carry out local spray repair on the dent on the surface of the car body, and after the repair is finished, the spray pressure of 20MPa-25MPa, the spray angle of 40 degrees-50 degrees and the spray nozzle of 0.45mm-0.51mm are selected to carry out integral spray on the surface of the car body.
And after the putty coating is dried, checking the surface flatness of the car body by using the horizontal ruler again, and making corresponding dent marks.
And (3) polishing the vehicle body base material by using 80-120-mesh sand paper, then selecting a spray nozzle with the spraying pressure of 18-20 MPa, the spraying angle of 10-20 degrees and the spraying angle of 0.33-0.38 mm to carry out secondary local spraying and compensation on the dent on the surface of the vehicle body according to the dent identification data, and selecting a spray nozzle with the spraying pressure of 20-25 MPa, the spraying angle of 40-50 degrees and the spraying angle of 0.45-0.51 mm again to carry out integral spraying on the surface of the vehicle body. And (4) circularly executing the process until the surface flatness meets the preset flatness requirement, wherein the preset flatness requirement is the standard requirement of the surface flatness of the vehicle body.
The invention can realize the spraying efficiency of the two-component putty of about 140m2/h-160m2And h, meeting the quality requirement of the putty process of the rail transit vehicle.
Of course, the putty can also be a single-component putty.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A vehicle body surface putty construction process is characterized by comprising the following steps:
1) searching a dent on the surface of the vehicle body;
2) locally repairing the dent on the surface of the vehicle body;
3) integrally spraying putty on the surface of the car body;
4) and (3) after the putty coating is dried, detecting whether the flatness of the surface of the vehicle body meets the preset flatness requirement, if not, returning to the step 1), and if so, finishing the putty construction operation.
2. The putty construction process for the surface of the car body as claimed in claim 1, wherein the putty is locally repaired in step 2) by spraying.
3. The putty construction process for the surface of the vehicle body as claimed in claim 2, wherein the first nozzle with the spraying pressure of 18MPa-20MPa, the spraying angle of 10 ° -20 ° and the caliber of 0.33mm-0.38mm is selected in step 2) to locally repair the dent on the surface of the vehicle body.
4. The putty construction process for the surface of the car body as claimed in claim 3, wherein in the step 3), the putty is integrally sprayed on the surface of the car body by using a second nozzle with spraying pressure of 20MPa-25MPa, spraying angle of 40-50 degrees and caliber of 0.45-0.51 mm.
5. The putty construction process for the surface of the car body as claimed in claim 4, wherein the first nozzle and the second nozzle are integrated with a spraying device, and the spraying device is cleaned within 5min-10min after the putty construction operation is finished.
6. The putty construction process for the surface of a vehicle body as claimed in claim 1, wherein the step 1) further comprises: and (5) polishing the surface of the vehicle body.
7. The putty construction process for the surface of a vehicle body as claimed in claim 6, wherein in step 1), the surface of the vehicle body is ground by 80-120-mesh sand paper.
8. The vehicle body surface putty construction process of claim 1 wherein step 1) includes marking the indentation with an indentation.
9. The putty construction process for the surface of the car body as claimed in claim 1, wherein the step 4) is carried out by detecting the flatness of the surface of the car body by using a level ruler.
10. The vehicle body surface putty construction process as claimed in any one of claims 1 to 9, wherein the putty is formed by mixing unsaturated polyester putty and two-component liquid curing agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916331.2A CN110639782A (en) | 2019-09-26 | 2019-09-26 | Vehicle body surface putty construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910916331.2A CN110639782A (en) | 2019-09-26 | 2019-09-26 | Vehicle body surface putty construction process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110639782A true CN110639782A (en) | 2020-01-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910916331.2A Pending CN110639782A (en) | 2019-09-26 | 2019-09-26 | Vehicle body surface putty construction process |
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| CN (1) | CN110639782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116078642A (en) * | 2023-01-03 | 2023-05-09 | 中车长春轨道客车股份有限公司 | Technological method for shaping construction of railway vehicle head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208854A (en) * | 1996-01-30 | 1997-08-12 | Meguro Kagaku Kogyo Kk | Repair coating material and repair coating method |
| CN101693794A (en) * | 2009-10-14 | 2010-04-14 | 深圳广田装饰集团股份有限公司 | Light and environment-friendly leveling putty for indoor decoration and construction method thereof |
| CN102814272A (en) * | 2012-07-20 | 2012-12-12 | 樊荣 | Paint spraying technology for stainless steel vehicle body |
| CN103691653A (en) * | 2013-12-26 | 2014-04-02 | 南车成都机车车辆有限公司 | Coach surface smearing and scraping method |
| CN105713437A (en) * | 2016-03-23 | 2016-06-29 | 南召鑫泰钙业有限公司 | Calcium carbonate putty powder and production technology thereof |
-
2019
- 2019-09-26 CN CN201910916331.2A patent/CN110639782A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09208854A (en) * | 1996-01-30 | 1997-08-12 | Meguro Kagaku Kogyo Kk | Repair coating material and repair coating method |
| CN101693794A (en) * | 2009-10-14 | 2010-04-14 | 深圳广田装饰集团股份有限公司 | Light and environment-friendly leveling putty for indoor decoration and construction method thereof |
| CN102814272A (en) * | 2012-07-20 | 2012-12-12 | 樊荣 | Paint spraying technology for stainless steel vehicle body |
| CN103691653A (en) * | 2013-12-26 | 2014-04-02 | 南车成都机车车辆有限公司 | Coach surface smearing and scraping method |
| CN105713437A (en) * | 2016-03-23 | 2016-06-29 | 南召鑫泰钙业有限公司 | Calcium carbonate putty powder and production technology thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴兴敏等: "《汽车整形与美容》", 31 August 2015 * |
| 郭柏林: "《木材胶粘剂知识入门》", 31 December 1994, 东北林业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116078642A (en) * | 2023-01-03 | 2023-05-09 | 中车长春轨道客车股份有限公司 | Technological method for shaping construction of railway vehicle head |
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Application publication date: 20200103 |