CN113953225B - Metal plate repairing and detecting method - Google Patents
Metal plate repairing and detecting method Download PDFInfo
- Publication number
- CN113953225B CN113953225B CN202111188108.4A CN202111188108A CN113953225B CN 113953225 B CN113953225 B CN 113953225B CN 202111188108 A CN202111188108 A CN 202111188108A CN 113953225 B CN113953225 B CN 113953225B
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- Prior art keywords
- paint
- heating
- paint surface
- area
- surface area
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- 239000002184 metal Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003973 paint Substances 0.000 claims abstract description 119
- 238000010438 heat treatment Methods 0.000 claims abstract description 78
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 27
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000007790 scraping Methods 0.000 claims description 2
- 239000004922 lacquer Substances 0.000 description 9
- 238000010009 beating Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000009659 non-destructive testing Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0071—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by heating
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a metal plate repairing and detecting method, and belongs to the technical field of vehicle condition identification. The metal plate repairing and detecting method comprises the following steps: s1, heating a preset range of a paint surface area to a preset temperature range by using heating equipment, S2, removing the paint surface of the heated paint surface area by using paint removing equipment to expose a substrate, and S3, observing whether the substrate is polished or not to judge whether the paint surface area is subjected to metal plate repair or not. According to the method, the adhesion between the substrate and the paint surface is reduced after the paint surface is heated, and then the paint surface is removed to expose the substrate, so that both disputed parties can directly see whether the paint surface is polished or not, and further, whether the paint surface area is repaired by metal plate or scratch can be intuitively judged.
Description
Technical Field
The invention belongs to the technical field of vehicle condition identification, and particularly relates to a metal plate repairing and detecting method.
Background
The existing market for buying and selling second-hand vehicles needs to identify the vehicle condition of the second-hand vehicles, and it is difficult to judge whether the vehicles are scraped and repainted or whether the vehicles are subjected to sheet metal repair due to accidents in the vehicle condition identification process, the existing detection technology for detecting the thickness of a paint layer by using a paint scanner (namely a coating thickness gauge) can judge whether the vehicle paint is scraped and repainted or not according to whether the detected thickness range of the vehicle paint is the thickness of a new vehicle paint surface (usually between 80 and 200 mu m), and the thickness of the paint surface after the paint surface is repainted in the sheet metal repair is the same as that of the scraped and repainted paint, so that the condition that the vehicles are scraped and repainted or the sheet metal repair cannot be judged only by detecting the thickness of the paint surface by using the paint scanner (namely the coating thickness gauge).
The oscillogram on the surface of the substrate is obtained by using ultrasonic nondestructive testing and X-ray nondestructive testing, so that the detection cost is high, and people who cannot understand the oscillogram cannot be persuaded, so that the metal plate repair detection method which can judge whether an automobile is subjected to metal plate repair or paint scratch repair at low cost and is convincing is required to be provided.
Disclosure of Invention
The invention aims to: the metal plate repairing and detecting method is provided to solve the problems in the prior art.
The technical scheme is as follows: a metal plate repairing and detecting method comprises the following steps: s1, heating a preset range of a painted surface area to a preset temperature interval by using heating equipment.
And S2, removing the paint surface of the heated paint surface area by using paint removing equipment to expose the substrate.
And S3, observing whether the substrate is polished or not and judging whether the metal plate repairing is carried out on the paint surface area or not.
In a further embodiment, the metal plate repair detection method further includes: s4, before the paint area in the preset range is heated, the thickness of the paint is detected by using coating thickness measuring equipment, then the paint is analyzed according to the thickness of the paint, the area of the paint to be removed is determined according to the result of the paint analysis, and the area of the paint to be removed is determined before heating, so that the damage to the original factory vehicle paint can be avoided, and the repair cost is further reduced.
In a further embodiment, the metal plate repair detection method further includes: the preset temperature interval for heating the painted surface is between 100 and 300 ℃.
In a further embodiment, the metal plate repair detection method further includes: the preset temperature range for heating the paint surface is 150-250 ℃, the adhesive force between the paint surface and the substrate can be reduced by controlling the heating temperature, the labor intensity required when the vehicle paint is taken out is further reduced, and the problems that the damage to internal parts of the vehicle is easily caused due to overhigh heating temperature, and the repair cost is high after the heating area is diffused to the surrounding vehicle paint to generate unnecessary damage, so that the detection is caused are solved.
In a further embodiment, the heating device is a heat gun, or a resistance heating blade.
When the hot air gun is used as heating equipment for heating, the air outlet of the hot air gun is enabled to be away from the paint surface area by a preset distance for heating.
When heating is performed using a resistance heating sheet as a heating device, the resistance heating sheet is applied to a predetermined range surface of the finish area to be heated.
In a further embodiment, the metal plate repair detection method further includes: the wind shield is provided with a preset area and a preset number of through holes.
Use before heating equipment heats, put the through-hole of deep bead in the regional predetermined range of finish earlier, then use heating equipment to see through the through-hole of deep bead and heat the regional predetermined range of finish, restrict heating equipment's heating scope through the deep bead to the heating scope, can effectively prevent heat diffusion, avoid the heating region to spread to peripheral car lacquer and produce unnecessary damage, and then reduced the problem that the cost of restoration after detecting is high.
In a further embodiment, the paint removing device is a paint scraper.
Use the paint scraper to carry out the finish and strike off heating back finish area along predetermined direction, expose the basement, carry out the finish through using the paint scraper and strike off, the basement that appears is the scratch of linear type, and the smooth intensive mill mark of non-, consequently can avoid getting rid of the car lacquer and can cause the similar mill mark with panel beating restoration to the basement, and then improved and detected directly perceived degree and convincing power.
In a further embodiment, the metal plate repair detection method further includes: a chalk or a marking pen.
When the coating thickness measuring equipment is used for determining the area of the surface to be subjected to paint removal, a chalk or a marking pen is used for drawing the position of the area to be subjected to paint removal.
Has the beneficial effects that: the invention discloses a metal plate repairing detection method, which reduces the adhesive force between a substrate and a paint surface by heating the paint surface, then removes the paint surface to expose the substrate, so that both disputes can directly watch whether the paint surface is polished and further can intuitively judge whether the paint surface area is repaired by metal plate or scratch, and the cost of the method is lower than the detection cost of ultrasonic nondestructive detection and X-ray nondestructive detection even if the repair cost of repairing the paint surface area after judging whether the metal plate is repaired is added, and the method also has the advantage of high persuasion compared with a waveform diagram of the nondestructive detection.
Drawings
FIG. 1 is a schematic view of the detection process of the present invention.
Fig. 2 is a schematic view of an embodiment of the invention in which a doctor blade scrapes off a paint surface.
Fig. 3 is a schematic view of an embodiment of the present invention in which a wind deflector is used during heating.
The reference numbers shown in fig. 1 to 3 are: the device comprises a region 1 of the surface to be paint removed, a heating device 2, a paint removing device 3 and a wind shield 4.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
The application discloses a metal plate repairing detection method which can judge whether an automobile is repaired by metal plates or rubbed paint repair at low cost and has convincing force.
The method uses a heating device 2 and a paint removal device 3.
The method comprises the following steps: s1, heating a preset range of a painted surface area to a preset temperature interval by using a heating device 2.
And S2, removing the paint surface of the heated paint surface area by using a paint removing device 3 to expose the substrate.
And S3, observing whether the substrate is polished or not and judging whether the metal plate repairing is carried out on the paint surface area or not.
In the present embodiment, the heating device 2 is a heat gun, or a resistance heating sheet.
When the hot air gun is used as the heating device 2 for heating, the air outlet of the hot air gun is heated at a preset distance from the paint surface area.
When heating is performed using a resistance heating sheet as the heating device 2, the resistance heating sheet is applied to a predetermined range surface of the finish area to be heated.
The working principle is as follows: the method has the advantages that the adhesion between the substrate and the paint surface is reduced after the paint surface is heated, then the paint surface is removed to expose the substrate, so that both disputed parties can directly see whether the paint surface is polished or not, and further, whether the paint surface area is subjected to metal plate repair or scratch repair paint can be intuitively judged.
In a further embodiment, the cost for repairing the paint surface after the detection of the paint surface subjected to the metal plate repairing or the scratch paint repairing is lower than the cost for repairing the original factory car paint, but when the area for removing the paint surface comprises the original factory car paint, the problem of higher repairing cost exists.
In order to solve the above problem, the metal plate repair detection method further includes: and S4, before heating the paint area within the preset range, detecting the thickness of the paint by using coating thickness measuring equipment, then performing paint analysis according to the thickness of the paint, and then determining the area 1 of the paint to be removed according to the result of the paint analysis.
In this embodiment, the metal plate repairing and detecting method shown in fig. 2 and 3 further includes: chalk or a marker.
When the coating thickness measuring equipment is used for determining the area 1 of the surface to be subjected to paint removal, chalk or a marking pen can be used for drawing the position of the area 1 of the surface to be subjected to paint removal.
By determining the area 1 of the surface to be subjected to paint removal before heating, damage to original factory car paint can be avoided, and the repair cost is further reduced.
In a further embodiment, when the paint surface is heated, the heating temperature is too high, so that the vehicle internal parts are easily damaged, the heating area is diffused to the surrounding vehicle paint to generate unnecessary damage, the repair cost is high after detection is caused, the heating temperature is too low, heating is insufficient, the adhesive force between the paint surface and the substrate is too large, the labor intensity required when the vehicle paint is taken out is too high, and the substrate is damaged.
In order to solve the above problem, the predetermined temperature interval for heating the painted surface is between 100 and 300 ℃.
In this embodiment, it is preferable that the predetermined temperature range for heating the painted surface is 150-250 ℃.
Can reduce lacquer painting and basement adhesive force through control heating temperature, and then reduce required intensity of labour when taking out the car lacquer, solve the high temperature of heating and appeared causing the damage to car inner part easily to and the heating region spreads to peripheral car lacquer and produces unnecessary damage and cause the high problem of restoration cost after detecting.
In a further embodiment, during heating by using a hot air gun as the heating device 2, heat diffusion is easy to occur, so that the problem that the heating area is diffused to the surrounding vehicle paint to cause unnecessary damage, and the repair cost after detection is high is caused.
In order to solve the above problem, the metal plate repair detection method further includes: a wind deflector 4.
As shown in fig. 3, the wind deflector 4 is provided with a predetermined area and a predetermined number of through holes.
In this embodiment, the wind deflector can be directly held by hand or clamped using a clamp and then the clamp is held to displace the wind deflector to a predetermined position, wherein if the wind deflector is held by hand, heat-insulating gloves need to be worn to avoid scalding.
Before heating by the heating device 2, the through-hole of the wind deflector 4 is first placed within the predetermined range of the finish area, and then the heating device 2 is used to heat the predetermined range of the finish area through the through-hole of the wind deflector 4.
The heating range of the heating device 2 is limited by the wind shield 4, so that heat diffusion can be effectively prevented, unnecessary damage caused by the fact that the heating region diffuses to the peripheral vehicle paint is avoided, and the problem of high repair cost after detection is solved.
In further embodiment, get rid of car lacquer in the prosthetic technological means of conventional panel beating to and the panel beating face is restoreed and is leveled and all directly use the polisher to polish the panel beating face, if also get rid of car lacquer with the polisher and can cause the similar mill mark with the panel beating is restoreed to the basement when detecting, have and detect directly perceived degree and reduce, the problem that persuasion descends.
To solve the above problem, the paint removing device 3 is a paint scraper.
And scraping the paint surface of the heated paint surface area along a preset direction by using a paint scraper to expose the substrate.
When the scraper is used in the embodiment, the paint scraper is required to be displaced in a single direction to scrape off the paint, so that the substrate is prevented from being scraped, and the detection intuition and persuasion are improved.
Carry out the lacquer painting through using the paint scraper and strike off, the basement that appears is the scratch of linear type, and the smooth intensive mill mark of non-, consequently can avoid getting rid of car lacquer and can cause the similar mill mark with panel beating restoration to the basement, and then improved detection directly perceived degree and convincing power.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A metal plate repairing and detecting method is characterized by comprising the following steps:
s1, heating a preset range of a paint surface area to a preset temperature interval by using heating equipment;
s2, removing the paint surface of the heated paint surface area by using paint removing equipment to expose the substrate, wherein the paint removing equipment is a paint scraper;
scraping the paint surface of the heated paint surface area along a preset direction by using a paint scraper to expose the substrate;
s3, observing whether the substrate is polished or not and judging whether the metal plate repairing is carried out on the paint surface area or not;
s4, before heating the paint area within the preset range, detecting the thickness of the paint by using coating thickness measuring equipment, then performing paint analysis according to the thickness of the paint, and then determining the area of the paint to be removed according to the result of the paint analysis;
the heating device is a hot air gun or a resistance heating sheet;
when the hot air gun is used as heating equipment for heating, the air outlet of the hot air gun is heated at a preset distance from the paint surface area;
when the resistance heating sheet is used as heating equipment for heating, the resistance heating sheet is pasted on the surface of the preset range of the paint surface area for heating;
further comprising: the wind shield is provided with a preset area and a preset number of through holes;
before the heating device is used for heating, the through hole of the wind shield is placed in the preset range of the paint surface area, and then the heating device is used for heating the preset range of the paint surface area through the through hole of the wind shield.
2. The sheet metal repair detection method of claim 1, further comprising:
the preset temperature interval for heating the painted surface is between 100 and 300 ℃.
3. The sheet metal repair detection method of claim 2, further comprising:
the predetermined temperature range for heating the paint surface is between 150 and 250 ℃.
4. The sheet metal repair detection method of claim 1, further comprising: a chalk or a marking pen, wherein the chalk or the marking pen,
when the coating thickness measuring equipment is used for determining the area of the paint surface to be removed, a chalk or a marking pen is used for drawing the position of the area of the paint surface to be removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188108.4A CN113953225B (en) | 2021-10-12 | 2021-10-12 | Metal plate repairing and detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111188108.4A CN113953225B (en) | 2021-10-12 | 2021-10-12 | Metal plate repairing and detecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113953225A CN113953225A (en) | 2022-01-21 |
| CN113953225B true CN113953225B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111188108.4A Active CN113953225B (en) | 2021-10-12 | 2021-10-12 | Metal plate repairing and detecting method |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5575035A (en) * | 1996-01-24 | 1996-11-19 | Northrop Grumman Corporation | Environmentally sound and safe apparatus for removing coatings |
| JP2002028845A (en) * | 2000-07-17 | 2002-01-29 | Mitsubishi Heavy Ind Ltd | Heat-removing device for paint film |
| SE530075C2 (en) * | 2006-09-22 | 2008-02-26 | Krokoms Vaegkrog Ab | scrapers |
| CN102680244B (en) * | 2012-03-31 | 2015-05-27 | 优信互联（北京）信息技术有限公司 | Automobile detection system and method |
| CN203356091U (en) * | 2013-07-03 | 2013-12-25 | 天津渤海望亚涂料有限公司 | Oil paint scraper |
| JP2018173023A (en) * | 2017-03-31 | 2018-11-08 | 株式会社東芝 | Repair method for turbine component |
| CN109269391A (en) * | 2018-10-11 | 2019-01-25 | 广州市果欧电子科技有限公司 | A kind of coating thickness detector and vehicle coatings thickness measure recording method |
| CN111266276A (en) * | 2018-12-05 | 2020-06-12 | 北京顶好佳誉汽车技术服务有限公司 | Putty-free metal plate method |
| CN109731753A (en) * | 2019-03-06 | 2019-05-10 | 北京市晨峰龙汽车修理有限责任公司 | A kind of shaving repair technology of automobile inspection |
| CN110614292B (en) * | 2019-09-23 | 2021-08-10 | 北京圣手汽车装饰服务有限公司 | Technological method for repairing automobile concave |
| CN112874490A (en) * | 2021-01-22 | 2021-06-01 | 天津鸿蒙智造科技有限公司 | Putty-free restoration method for restoring automobile appearance data |
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- 2021-10-12 CN CN202111188108.4A patent/CN113953225B/en active Active
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| CN113953225A (en) | 2022-01-21 |
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