CN103558338A - Method for detecting pollutant causing contraction cavity on automobile finish - Google Patents
Method for detecting pollutant causing contraction cavity on automobile finish Download PDFInfo
- Publication number
- CN103558338A CN103558338A CN201310473882.9A CN201310473882A CN103558338A CN 103558338 A CN103558338 A CN 103558338A CN 201310473882 A CN201310473882 A CN 201310473882A CN 103558338 A CN103558338 A CN 103558338A
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- breadboard
- detected materials
- shrinkage cavity
- assigned address
- polluted
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- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 18
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008602 contraction Effects 0.000 title abstract 8
- 239000000463 material Substances 0.000 claims abstract description 93
- 239000003973 paint Substances 0.000 claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 16
- 235000009161 Espostoa lanata Nutrition 0.000 claims description 11
- 240000001624 Espostoa lanata Species 0.000 claims description 11
- 238000010422 painting Methods 0.000 claims description 6
- 239000004922 lacquer Substances 0.000 claims description 4
- 125000005605 benzo group Chemical group 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000010998 test method Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 238000007591 painting process Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000000576 coating method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention aims to provide a simple method for detecting pollutants causing contraction cavities on automobile finish. Through prevention on the usage of material containing substances sensitive to paint, contraction cavities generated on automobile finish can be reduced, so as to improve the quality of automotive finishes. The detecting method provided by the invention comprises the following steps: A, making a test plate and contaminating a specified location of the test plate with a material to be measured; B, spraying paint on the test plate according to an automotive finish painting process; and C, observing a wet film of the test plate and dried paint film surface for concaves or contraction cavities; if there are concaves or contraction cavities, determining the influences of the material to be measured on the paint according to the positions of the concaves or contraction cavities. The invention uses test plate to determine the influences of the material on the paint before usage, thus avoiding contraction cavities on automobile finish, reducing or avoiding the quality and cost loss brought by contraction cavities. The test method is simple and easy to implement, and has low test cost and good practicability.
Description
Technical field
The present invention relates to a kind of detection method that causes the pollutant of automobile finish shrinkage cavity, can detect in advance the material containing paint sensitive materials, thereby avoid using this kind of material, reduce automobile finish and produce shrinkage cavity.
Background technology
Sedan car top coat shrinkage cavity defect, is a kind of very serious film defect, and the crateriform pit of its shape class, affects lacquer painting outward appearance and antiseptic effect, is not allow to exist.But because paint application influence factor is many, in environment, as contained oil, water, dust, particle and some chemical substances, all can cause in various degree paint film to produce shrinkage cavity disadvantage.Therefore, the control of paint film shrinkage cavity, focuses on the control of coating process environment, avoids paint and environment to be polluted.
At present, at oil, water, dust, the technology of the environment cleanliness control aspects such as particle is comparative maturity, but for Painting Shop or some nonmetallic materials of using with car, as line seal glue, electric wire, car blocking piece, filtering material etc., may contain silicon, some paint responsive material ketone etc., the volatilization of these sensitive materials discharges, the generation of paint film shrinkage cavity will be caused, because this is cannot see, impalpable, now there is no a kind of good inspection control method, after can only waiting for that finish paint shrinkage cavity occurs, carry out again pollution source investigation, waste time and energy, even can not find problem place, have a strong impact on quality and cost.
Summary of the invention
The object of the invention is to propose a kind of detection method that simply causes the pollutant of automobile finish shrinkage cavity, can detect in advance the material containing paint sensitive materials, by preventing from containing the use to the material of paint sensitive materials, reduce automobile finish and produce shrinkage cavity, thereby improve the quality of automobile finish.
The detection method of the pollutant of automobile finish shrinkage cavity that causes of the present invention comprises the steps:
A: make a breadboard, utilize detected materials to pollute the assigned address of breadboard;
B: the lacquer spraying technique according to automobile finish sprays paint breadboard;
C: after viewing test plate wet film and oven dry, whether the surface of paint film has pit or shrinkage cavity to occur, if having pit or shrinkage cavity to occur, judges that according to the position of pit or shrinkage cavity appearance detected materials is on the impact of painting.
Further, in described C step: C1: if the paint on breadboard surface without pit or shrinkage cavity appearance, shows described detected materials, paint is not polluted; C2: if the position of being polluted by detected materials on breadboard has pit or shrinkage cavity to occur, and other position of not polluted by detected materials of breadboard does not have pit or shrinkage cavity to occur, shows that described detected materials has pollution to paint; C3: if the position of being polluted by detected materials on breadboard and other position of not polluted by detected materials have pit or shrinkage cavity to occur, revision test after the impact of getting rid of other accidentalia, until occur the situation of described C1 or C2.
Specifically, for different detected materials, the method for in A step, the assigned address of breadboard being utilized detected materials to pollute has following several:
1, in described A step, described detected materials is flexible material, by detected materials, dip in after dimethylbenzene, and the assigned address of direct friction breadboard, thus the assigned address of breadboard is polluted.
2, in described A step, described detected materials is rigid material or is difficult for mobile material, with being moistened with after the cotton balls wiping detected materials of dimethylbenzene, use again the assigned address of described cotton balls wipe test plate, or the dimethylbenzene in described cotton balls is extruded and dripped the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
3, in described A step, the size of described detected materials is less than preliminary dimension, detected materials is immersed to dimethylbenzene after the schedule time, draws a small amount of diformazan benzo and drips the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
4, in described A step, described detected materials is cohesive material, detected materials is coated with to the oil film of last layer predetermined thickness at the assigned address of breadboard, thereby the assigned address of breadboard is polluted.
5, in described A step, described detected materials is gas, the assigned address of breadboard is exposed in detected materials, and with known, to paint, does not have the material polluting to hide other position of breadboard, thereby the assigned address of breadboard is polluted.
Further, for guaranteeing that test result approaches actual service condition, thereby more accurately credible, described breadboard is that car surface sheet material is made.
Further, the assigned address of described breadboard is positioned at the center of breadboard, to avoid testing crew because of carelessness the assigned address of breadboard to be caused to secondary pollution, and affects the accuracy of test findings.
The detection method of the pollutant of automobile finish shrinkage cavity that causes of the present invention utilizes breadboard before materials'use, to confirm its impact on paint, therefore can avoid the automobile finish shrinkage cavity defect because not taking test check to produce, thereby the quality, the cost loss that reduce or avoid bringing thus, method of testing enforcement easy and simple to handle, easy, experimentation cost are low, have good practicality.
Embodiment
Below by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and principle of work etc.
Embodiment 1:
The detection method of the pollutant that causes automobile finish shrinkage cavity of the present embodiment comprises the steps:
A: with breadboard of car surface board making, using the center of breadboard as assigned address, utilize detected materials to pollute assigned address;
B: the lacquer spraying technique according to automobile finish sprays paint breadboard;
C: after viewing test plate wet film and oven dry, whether the surface of paint film has pit or shrinkage cavity to occur, if have pit or shrinkage cavity to occur, according to the position of pit or shrinkage cavity appearance, judge the impact of detected materials on paint: C1: if the paint on breadboard surface without pit or shrinkage cavity appearance, shows that described detected materials is to not pollution of paint; C2: if the position of being polluted by detected materials on breadboard has pit or shrinkage cavity to occur, and other position of not polluted by detected materials of breadboard does not have pit or shrinkage cavity to occur, shows that described detected materials has pollution to paint; If the position of being polluted by detected materials on breadboard and other position of not polluted by detected materials have pit or shrinkage cavity to occur,, until there is the situation of described C1 or C2 in revision test after the impact of getting rid of other accidentalia.
Specifically, for different detected materials, the method for in A step, the assigned address of breadboard being utilized detected materials to pollute has following several:
1, described detected materials is rubber, during the flexible materials such as sponge, by detected materials, dip in after dimethylbenzene, and the assigned address of direct friction breadboard, thus the assigned address of breadboard is polluted.
When 2, the described detected materials rigid material such as be hard plastic or size cannot move compared with large, mounted fixed equipment, with being moistened with after the cotton balls wiping detected materials at least five times of dimethylbenzene, then use the assigned address at least five times of described cotton balls wipe test plate; If cotton balls is dirtier, the dimethylbenzene in described cotton balls is extruded and dripped the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
When 3, the size of described detected materials is less than preliminary dimension (as pad, electric wire etc.), detected materials is immersed to dimethylbenzene after 30 minutes, with suction pipe, draw a small amount of diformazan benzo and drip the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
4, described detected materials is grease, glue, during the cohesive materials such as coating, detected materials (can also be coated in detected materials to the assigned address of breadboard at the oil film of the assigned address painting last layer predetermined thickness of breadboard, then with clean cotton balls, dab detected materials, until be only left the oil film as thin as a wafer of one deck predetermined thickness on model), thus the assigned address of breadboard is polluted.
5, described detected materials is that gas (is applicable to check Painting Shop or near the air of equipment, as top, workshop, air port, air outlet, pressurized air etc.), the assigned address of breadboard is exposed in detected materials, and with known, to paint, does not have the material polluting to hide other position of breadboard, thereby the assigned address of breadboard is polluted.
The above-mentioned detection method of the pollutant of automobile finish shrinkage cavity that causes utilizes breadboard before materials'use, to confirm its impact on paint, therefore can avoid the automobile finish shrinkage cavity defect because not taking test check to produce, thereby the quality, the cost loss that reduce or avoid bringing thus, method of testing enforcement easy and simple to handle, easy, experimentation cost are low, have good practicality.
Claims (9)
1. a detection method that causes the pollutant of automobile finish shrinkage cavity, is characterized in that comprising the steps:
A: make a breadboard, utilize detected materials to pollute the assigned address of breadboard;
B: the lacquer spraying technique according to automobile finish sprays paint breadboard;
C: after viewing test plate wet film and oven dry, whether the surface of paint film has pit or shrinkage cavity to occur, if having pit or shrinkage cavity to occur, judges that according to the position of pit or shrinkage cavity appearance detected materials is on the impact of painting.
2. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1, is characterized in that in described C step:
C1: paint is not polluted if the paint on breadboard surface without pit or shrinkage cavity appearance, shows described detected materials;
C2: if the position of being polluted by detected materials on breadboard has pit or shrinkage cavity to occur, and other position of not polluted by detected materials of breadboard does not have pit or shrinkage cavity to occur, shows that described detected materials has pollution to paint;
C3: if the position of being polluted by detected materials on breadboard and other position of not polluted by detected materials have pit or shrinkage cavity to occur, revision test after the impact of getting rid of other accidentalia, until occur the situation of described C1 or C2.
3. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, it is characterized in that in described A step, described detected materials is flexible material, by detected materials, dip in after dimethylbenzene, the assigned address of direct friction breadboard, thus the assigned address of breadboard is polluted.
4. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, it is characterized in that in described A step, described detected materials is rigid material or is difficult for mobile material, with being moistened with after the cotton balls wiping detected materials of dimethylbenzene, use again the assigned address of described cotton balls wipe test plate, or the dimethylbenzene in described cotton balls is extruded and dripped the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
5. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, it is characterized in that in described A step, the size of described detected materials is less than preliminary dimension, detected materials is immersed to dimethylbenzene after the schedule time, draw a small amount of diformazan benzo and drip the assigned address in breadboard, thereby the assigned address of breadboard is polluted.
6. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, it is characterized in that in described A step, described detected materials is cohesive material, detected materials is coated with to the oil film of last layer predetermined thickness at the assigned address of breadboard, thereby the assigned address of breadboard is polluted.
7. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, it is characterized in that in described A step, described detected materials is gas, the assigned address of breadboard is exposed in detected materials, and with known, to paint, do not have the material polluting to hide other position of breadboard, thereby the assigned address of breadboard is polluted.
8. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 1 and 2, is characterized in that described breadboard is that car surface sheet material is made.
9. the detection method that causes the pollutant of automobile finish shrinkage cavity according to claim 8, is characterized in that the assigned address of described breadboard is positioned at the center of breadboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473882.9A CN103558338A (en) | 2013-10-12 | 2013-10-12 | Method for detecting pollutant causing contraction cavity on automobile finish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473882.9A CN103558338A (en) | 2013-10-12 | 2013-10-12 | Method for detecting pollutant causing contraction cavity on automobile finish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103558338A true CN103558338A (en) | 2014-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310473882.9A Pending CN103558338A (en) | 2013-10-12 | 2013-10-12 | Method for detecting pollutant causing contraction cavity on automobile finish |
Country Status (1)
| Country | Link |
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| CN (1) | CN103558338A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901165A (en) * | 2014-03-24 | 2014-07-02 | 安徽江淮汽车股份有限公司 | Method for determining resistance to shrinkage cavity of electrophoresis paint film caused by high-temperature lubricating oil |
| CN104360044A (en) * | 2014-11-13 | 2015-02-18 | 廊坊立邦涂料有限公司 | Method for detecting automobile paint shrinkage cavity |
| CN105628865A (en) * | 2014-11-07 | 2016-06-01 | 立邦涂料（中国）有限公司 | Method for detecting hidden coating pit in composite coating |
| CN106290730A (en) * | 2016-08-08 | 2017-01-04 | 江苏华伦富特化工有限公司 | A kind of rapid analysis method of paint solvent resistance to shrinkage cavity test |
| CN106596585A (en) * | 2016-12-14 | 2017-04-26 | 立邦涂料(成都)有限公司 | Quick detection method of emulsion paint film cracking |
| CN106769386A (en) * | 2016-12-14 | 2017-05-31 | 立邦涂料(成都)有限公司 | A kind of method for quick of woodcare paint glossiness |
| CN107144670A (en) * | 2017-06-20 | 2017-09-08 | 巴斯夫上海涂料有限公司 | The characterizing method of the pin hole sensitiveness of colored paint and its application |
| CN107782882A (en) * | 2017-10-11 | 2018-03-09 | 上海三恩化工有限公司 | The method of inspection of pin hole inside a kind of composite coating |
| CN108303520A (en) * | 2018-02-12 | 2018-07-20 | 安徽江淮汽车集团股份有限公司 | A kind of defeated paint mixing system shrinkage cavity test method of painting dressing automobiles |
| CN116493231A (en) * | 2023-04-07 | 2023-07-28 | 东风柳州汽车有限公司 | Oil stain shrinkage cavity treatment method and vehicle body processing method |
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2013
- 2013-10-12 CN CN201310473882.9A patent/CN103558338A/en active Pending
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901165A (en) * | 2014-03-24 | 2014-07-02 | 安徽江淮汽车股份有限公司 | Method for determining resistance to shrinkage cavity of electrophoresis paint film caused by high-temperature lubricating oil |
| CN105628865A (en) * | 2014-11-07 | 2016-06-01 | 立邦涂料（中国）有限公司 | Method for detecting hidden coating pit in composite coating |
| CN104360044A (en) * | 2014-11-13 | 2015-02-18 | 廊坊立邦涂料有限公司 | Method for detecting automobile paint shrinkage cavity |
| CN104360044B (en) * | 2014-11-13 | 2015-12-02 | 廊坊立邦涂料有限公司 | A kind of automobile coating shrinkage cavity detection method |
| CN106290730A (en) * | 2016-08-08 | 2017-01-04 | 江苏华伦富特化工有限公司 | A kind of rapid analysis method of paint solvent resistance to shrinkage cavity test |
| CN106596585A (en) * | 2016-12-14 | 2017-04-26 | 立邦涂料(成都)有限公司 | Quick detection method of emulsion paint film cracking |
| CN106769386A (en) * | 2016-12-14 | 2017-05-31 | 立邦涂料(成都)有限公司 | A kind of method for quick of woodcare paint glossiness |
| CN107144670A (en) * | 2017-06-20 | 2017-09-08 | 巴斯夫上海涂料有限公司 | The characterizing method of the pin hole sensitiveness of colored paint and its application |
| CN107782882A (en) * | 2017-10-11 | 2018-03-09 | 上海三恩化工有限公司 | The method of inspection of pin hole inside a kind of composite coating |
| CN108303520A (en) * | 2018-02-12 | 2018-07-20 | 安徽江淮汽车集团股份有限公司 | A kind of defeated paint mixing system shrinkage cavity test method of painting dressing automobiles |
| CN116493231A (en) * | 2023-04-07 | 2023-07-28 | 东风柳州汽车有限公司 | Oil stain shrinkage cavity treatment method and vehicle body processing method |
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Application publication date: 20140205 |