CN107179333B - Electrodeposited paint film is detected to base material side along the method and its application of protective value - Google Patents
Electrodeposited paint film is detected to base material side along the method and its application of protective value Download PDFInfo
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- CN107179333B CN107179333B CN201710472389.3A CN201710472389A CN107179333B CN 107179333 B CN107179333 B CN 107179333B CN 201710472389 A CN201710472389 A CN 201710472389A CN 107179333 B CN107179333 B CN 107179333B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
Abstract
A method of detection electrodeposited paint film is to base material side along protective value, one end including will test part is in contact with the edge of substrate, so that the angle of detection piece and substrate facade is 45 °, in 0V~1, several voltage values are set in the voltage range of 000V from low to high, since set minimum amount of voltage that, from low to high, base material side edge is detected respectively under the conditions of set each test voltage value, if the average value of two times result is greater than 90%, it is qualified under the test voltage in electrodeposited paint film then to show, it can continue the test of next higher voltage value, when the average value of two times result is less than 90%, then show unqualified under the test voltage in electrodeposited paint film.For method of the invention compared with salt mist experiment, testing cost is low, time-consuming short, and has preferable reproducibility.
Description
Technical field
The present invention relates to a kind of test method of coating property more particularly to a kind of electrodeposited paint films brushed on base material side edge
The method detected, and the application in database sharing.
Background technique
In the finishing system of car paint, electrophoretic paint is risen as the one coat closest to substrate at corrosion-resistant aspect
To vital effect.For a electrophoretic paint product, many because being known as of its antiseptic property, the thickness of electrodeposited paint film are influenced
It is the most key one of factor.Therefore, domestic all vehicle factors all can have hardness to the most thin thickness of electrodeposited paint film at present
Requirement.Usually, the electrodeposited paint film on base material side edge is relatively thin, thus is also easier to be corroded, and integrally gets rusty so as to cause substrate.
Therefore, excellent edge protective value be electrophoretic paint research and development with the index paid high attention to per family.
Currently, salt mist experiment is evaluation method the most commonly used in industry.The salt mist experiment requirements of process of one standard 3
It is placed 168 hours in salt fog cabinet after electrophoresis drying by the blade of standard phosphatization, assesses rust spot quantity.The evaluation method is existing
It is being applied by more vehicle producer as emblem mark.It is found by the practice of many years, this method has following points and lacks
Fall into: 1, the personnel needed in whole experiment process are more, take a long time, therefore higher cost；2, the material of blade is usually to close
Jin Gang, however the wagon sheet actually used is cold-reduced sheet/galvanized sheet/aluminium sheet, the difference of plate has the result of salt mist experiment
Large effect, therefore the result of blade experiment only has reference value, is unable to characterize electrophoretic paint product itself in practical vehicle body
Edge protective capability on plate；3, the systematic error and human error of salt mist experiment are larger, and the repeatability of experiment is not strong；And 4,
Visually to the judgement of rust spot number, there are biggish errors.
Summary of the invention
It is an object of the present invention to provide a kind of detection electrodeposited paint film to base material side along the method for protective value, to painting
The film thickness for having brushed the base material side edge of electrophoretic paint is detected, and judges whether the electrodeposited paint film to be formed meets the requirement of application.
It is another object of the present invention to provide a kind of detection electrodeposited paint film to base material side along the method for protective value, contracting
Short accurate evaluation electrodeposited paint film, along the time of protective value, reduces the investment to man power and material to base material side.
It is yet a further object of the present invention to provide a kind of building electrophoresis paint formula and to the data of edge protective capability
The method in library realizes that electrophoretic paint and paint film to the data collection of edge protective capability, are matched with digital form characterization electrophoretic paint
The relationship of side and electrophoretic paint film thickness edge protective capability, realizes the foundation of database, in favor of the data mould of electrodeposited paint film formula
Quasi- and prediction.
For achieving the above object, a kind of detection electrodeposited paint film provided by the invention is to base material side along the side of protective value
Method, comprising:
The substrate that edge has formed electrodeposited paint film is placed in fixed mechanism in a manner of perpendicular to level；
The one end that will test part is in contact with the edge of substrate, so that the angle of detection piece and substrate facade is 45 °；
Set several voltage values from low to high in 0V~1, the voltage range of 000V, be consequently formed one group of presentation ladder to
On test voltage distributional pattern；
Since set minimum amount of voltage that, from low to high, under the conditions of set each test voltage value respectively
Base material side edge is detected, it may be assumed that
By detection piece to base material side after imposing the test voltage of setting, the detection piece that is in contact with the edge of substrate
One end at the uniform velocity slides to the other end (required total time is denoted as T) on base material side edge along the one end on base material side edge, in the process,
The variation of numerical value shown in optical viewer, when the numerical value shown in the instrument changes, then numerical value change shown in start recording instrument
Time t to get the ratio of t/T, be denoted as Z1, and be repeated once, be denoted as Z2；
If the average value of the two times result of Z1 and Z2 is greater than 90%, show to close under the test voltage in electrodeposited paint film
Lattice can continue the test of next higher voltage value.
Thus method can digitize the edge protective value of various electrophoretic paints in the product development of electrophoretic paint
Quantitative collection realizes database sharing to digitize means, is the determination and screening of the formula of electrophoretic paint, provides analogue data
And prediction accelerates the electrophoretic paint of various models to develop according to the requirement of different edge protective values.
For in the direct applied high-quality electrophoretic paint of body of a motor car, paint film should expire the test of edge protective value
Foot tests average value twice under 1,000V test voltage and is considered as qualification greater than 90%.
Technical solution of the present invention realize the utility model has the advantages that
Detection electrodeposited paint film provided by the invention is to the method for edge protective value, compared with salt mist experiment, detection at
This is low, time-consuming short, and has preferable reproducibility.
Method provided by the invention is to pass through the application voltage on edge paint film and obtain one most after reading instrument data
It is quantizing eventually as a result, the result for evaluate electrophoretic paint product itself edge protective capability have stronger specificity.
Method provided by the invention can also be applied to electrophoresis paint formula and paint film to the database structure of edge protective capability
It builds, realizes that electrophoresis paint formula and paint film carry out the number of data acquisition, data relationship building and judging result to edge protective capability
Word.Electrophoresis paint formula and paint film are established to the relationship of edge protective capability by digitlization means, can be realized electrodeposited paint film
The digital simulation of formula and prediction meet the electrophoretic paint that different edge protections require for quickly exploitation and provide foundation.
Specific embodiment
Technical solution of the present invention described in detail below.The embodiment of the present invention be merely illustrative of the technical solution of the present invention and
It is unrestricted, although being described the invention in detail referring to preferred embodiment, those skilled in the art should understand that,
Can with modification or equivalent replacement of the invented technical scheme, without departing from the spirit and scope of the technical solution of the present invention,
It should all cover within the scope of the claims of the present invention.
A method of detection electrodeposited paint film is to base material side along protective value, comprising:
The substrate that edge has formed electrodeposited paint film is placed in fixed mechanism in a manner of perpendicular to level；
The one end that will test part is in contact with the edge of substrate, so that the angle of detection piece and substrate facade is 45 °；
Set several voltage values from low to high in 0V~1, the voltage range of 000V, be consequently formed one group of presentation ladder to
On test voltage distributional pattern, such as: 50V, 100V, 200V, 400V and 1,000V；
Since set minimum amount of voltage that, such as: 50V, from low to high, in set each test voltage value condition
It is lower that base material side edge is detected respectively, it may be assumed that
By detection piece to base material side after imposing the test voltage of 50V, the detection piece that is in contact with the edge of substrate
One end at the uniform velocity slides to the other end (required total time is denoted as T) on base material side edge along the one end on base material side edge, in the process,
Optical viewer shows numerical value, when the numerical value shown in the instrument changes, then time of numerical value change shown in start recording instrument
T is denoted as Z1, and be repeated once, is denoted as Z2 to get the ratio of t/T.
If the average value of the two times result of Z1 and Z2 is greater than 90%, show to close under 50V test voltage in electrodeposited paint film
Lattice can continue the test of next higher voltage value, i.e. 100V.
If the average value of measured two times result is greater than 90% under 100V voltage, show in electrodeposited paint film in 100V
It is qualified under test voltage, the test of next higher voltage value, i.e. 200V can be continued.
If the average value of measured two times result is greater than 90% under 200V voltage, show in electrodeposited paint film in 200V
It is qualified under test voltage, the test of next higher voltage value, i.e. 400V can be continued.
If the average value of measured two times result shows in electrodeposited paint film less than 90% in 400V under 400V voltage
It is unqualified under test voltage, without the test for continuing next higher voltage value, i.e., 1,000V.
For electrophoretic paint Formula Development, for high-quality in the direct applied high-quality electrophoretic paint of body of a motor car, paint
It, can also be since the test of 400V voltage, no longer to low when film tests edge protective value using the method for the present embodiment
The detection of edge protective value is carried out in 400V test voltage below.
If the average value of measured two times result is greater than 90% under 400V voltage, show in electrodeposited paint film in 400V
It is qualified under test voltage, continue the test of next higher voltage value, such as: 800V or 1,000V.
For in the direct applied high-quality electrophoretic paint of body of a motor car, paint film should expire the test of edge protective value
Foot tests average value twice under 1,000V test voltage and is greater than 90%, then is considered as qualified electrodeposited paint film.
Detection method through this embodiment, can edge protective value to electrodeposited paint film carry out quickly numeralization table
Sign, electrophoresis paint formula can also be digitized, thereby establish electrophoresis paint formula and paint film to the pass of edge protective capability
System, can be realized digital simulation and the prediction of electrodeposited paint film formula, meet the electrophoresis that different edge protections require for quickly exploitation
Paint provides foundation.
Claims (6)
1. a kind of detection electrodeposited paint film is to base material side along the method for protective value, characterized by comprising:
The substrate that edge has formed electrodeposited paint film is placed in fixed mechanism in a manner of perpendicular to level；
The one end that will test part is in contact with the edge of substrate, so that the angle of detection piece and substrate facade is 45 °；
It sets several voltage values from low to high in 0V~1, the voltage range of 000V, it is upward that one group of presentation ladder is consequently formed
Test voltage distributional pattern；
Since set minimum amount of voltage that, from low to high, respectively to base under the conditions of set each test voltage value
It is detected on edge edge, it may be assumed that
After the test voltage for imposing setting to base material side edge by detection piece, the one of the detection piece being in contact with the edge of substrate
End, the other end on base material side edge is at the uniform velocity slided to along the one end on base material side edge, and required total time is denoted as T, in the process,
The variation of numerical value shown in optical viewer, when the numerical value shown in the instrument changes, then numerical value change shown in start recording instrument
Time t to get the ratio of t/T, be denoted as Z1, and be repeated once, be denoted as Z2；
If the average value of the two times result of Z1 and Z2 is greater than 90%, show that electrodeposited paint film is qualified under the test voltage, it can be with
Continue the test of next higher voltage value.
2. detection electrodeposited paint film according to claim 1 is to base material side along the method for protective value, it is characterised in that described
The upward each voltage value of test voltage distributional pattern of one group of presentation ladder are as follows: 50V, 100V, 200V, 400V and 1,000V.
3. detection electrodeposited paint film according to claim 1 is to base material side along the method for protective value, it is characterised in that described
The upward each voltage value of test voltage distributional pattern of one group of presentation ladder are as follows: 400V and 1,000V.
4. detection electrodeposited paint film according to claim 1 along the method for protective value, matches base material side establishing electrophoretic paint
Side and paint film are to the application in the database of edge protective value.
5. a kind of electrophoresis paint formula and paint film established is to the method for the database of edge protective value, it is characterised in that use right
It is required that one of 1~3 method acquires data, and electrophoresis paint formula and paint film are established to the relationship of edge protective value.
6. according to the method described in claim 5, it is characterized in that the side of various electrophoretic paints in the product development of electrophoretic paint
Digitlization quantitative collection is carried out along protective value, to digitize means, realizes database sharing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710472389.3A CN107179333B (en) | 2017-06-20 | 2017-06-20 | Electrodeposited paint film is detected to base material side along the method and its application of protective value |
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| CN201710472389.3A CN107179333B (en) | 2017-06-20 | 2017-06-20 | Electrodeposited paint film is detected to base material side along the method and its application of protective value |
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| CN107179333B true CN107179333B (en) | 2019-08-16 |
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| CN2071340U (en) * | 1989-11-23 | 1991-02-13 | 北京市新技术应用研究所 | Electrolysis used in line potential gradient detector |
| CN104502719A (en) * | 2014-12-10 | 2015-04-08 | 中国第一汽车股份有限公司 | Method for testing electrophoresis wet paint film resistance |
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| CN106290134A (en) * | 2016-08-24 | 2017-01-04 | 奇瑞商用车（安徽）有限公司 | A kind of automobile electrophoretic paint sharp edge covering performance test method |
| CN106706711A (en) * | 2017-02-10 | 2017-05-24 | 长沙巧力仪器设备有限公司 | Novel numerical control high-voltage paint film continuous-detection system |
| CN106814026A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | A kind of clad plate corrosion resisting property method for rapidly testing |
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2017
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Patent Citations (7)
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|---|---|---|---|---|
| CN2071340U (en) * | 1989-11-23 | 1991-02-13 | 北京市新技术应用研究所 | Electrolysis used in line potential gradient detector |
| CN105651847A (en) * | 2014-11-12 | 2016-06-08 | 廊坊立邦涂料有限公司 | Electrophoresis coating material throwing power testing method and electrophoresis coating material throwing power detection apparatus |
| CN104502719A (en) * | 2014-12-10 | 2015-04-08 | 中国第一汽车股份有限公司 | Method for testing electrophoresis wet paint film resistance |
| CN104914154A (en) * | 2015-06-09 | 2015-09-16 | 武汉钢铁(集团)公司 | Electrophoresis experimental device for automobile leaf-spring |
| CN106814026A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | A kind of clad plate corrosion resisting property method for rapidly testing |
| CN106290134A (en) * | 2016-08-24 | 2017-01-04 | 奇瑞商用车（安徽）有限公司 | A kind of automobile electrophoretic paint sharp edge covering performance test method |
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| GB 1763/79;北京油漆厂等;《中国人民共和国国家标准》;19800101;第86-87页 |
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