CN107179333A - Detect method and its application of the electrodeposited paint film to base material side along protective value - Google Patents
Detect method and its application of the electrodeposited paint film to base material side along protective value Download PDFInfo
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- CN107179333A CN107179333A CN201710472389.3A CN201710472389A CN107179333A CN 107179333 A CN107179333 A CN 107179333A CN 201710472389 A CN201710472389 A CN 201710472389A CN 107179333 A CN107179333 A CN 107179333A
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- base material
- paint film
- edge
- voltage
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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 kind of method for detecting electrodeposited paint film to base material side along protective value, including one end of detection piece is in contact with the edge of base material, so that the angle of detection piece and base material facade is 45 °, in 0V~1, some magnitudes of voltage are set in 000V voltage range 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 each set test voltage value, if the average value of two times result is more than 90%, then show electrodeposited paint film under the test voltage it is qualified, the test of next higher voltage value can be proceeded, when the average value of two times result is less than 90%, then show electrodeposited paint film under the test voltage it is unqualified.The method of the present invention is compared with salt mist experiment, and its testing cost is low, time-consuming short, and with preferable reappearance.
Description
Technical field
The present invention relates to a kind of method of testing of coating property, more particularly to a kind of electrodeposited paint film in base material side along brushing
The method detected, and the application in database sharing.
Background technology
In the finishing system of car paint, electrophoretic paint rises as the one coat closest to base material at corrosion-resistant aspect
To vital effect.For a electrophoretic paint product, influenceing the factor of its antiseptic property has a lot, the thickness of electrodeposited paint film
It is one of the most key factor.Therefore, domestic all vehicle factories all can have hardness to the most minimal thickness of electrodeposited paint film at present
Requirement.As a rule, the electrodeposited paint film on base material side edge is relatively thin, thus is also easier to be corroded, so as to cause base material integrally to get rusty.
Therefore, excellent edge protective value be electrophoretic paint research and development with the index paid high attention to per family.
At present, salt mist experiment is evaluation method the most commonly used in industry.The salt mist experiment requirements of process of one standard 3
By the blade of standard phosphatization, after electrophoresis drying, placed 168 hours in salt fog cabinet, assess rust spot quantity.The evaluation method shows
Applied by more vehicle producer as emblem mark.Found by practice for many years, this method tool following points lack
Fall into：1st, the personnel needed in whole experiment process are more, time-consuming longer, therefore cost is higher；2nd, the material of blade is usually to close
Jin Gang, but the wagon sheet actually used is cold-reduced sheet/galvanized sheet/aluminium sheet, the different results to salt mist experiment of sheet material have
Large effect, therefore the result of blade experiment only has reference value, it is impossible to electrophoretic paint product is characterized in itself in actual vehicle body
Edge protective capability on plate；3rd, the systematic error and human error of salt mist experiment are larger, and the repeatability of experiment is not strong；And 4,
Visually, there is larger error in the judgement to rust spot number.
The content of the invention
It is an object of the present invention to provide a kind of method for detecting electrodeposited paint film to base material side along protective value, to applying
The thickness for having brushed the base material side edge of electrophoretic paint is detected, judges whether the electrodeposited paint film formed meets the requirement of application.
It is another object of the present invention to provide a kind of method for detecting electrodeposited paint film to base material side along protective value, contracting
Time of the short accurate evaluation electrodeposited paint film to base material side along protective value, reduce the input to man power and material.
It is yet a further object of the present invention to provide a kind of structure electrophoresis paint formula and the data to edge protective capability
The method in storehouse, realizes the Data Collection of electrophoretic paint and paint film to edge protective capability, and characterizing electrophoretic paint with digital form matches somebody with somebody
Side and the relation of electrophoretic paint film thickness edge protective capability, realize the foundation of database, the data mould being formulated in favor of electrodeposited paint film
Intend and prediction.
For achieving the above object, a kind of side of the detection electrodeposited paint film that the present invention is provided to base material side along protective value
Method, including：
The base material that edge has been formed into electrodeposited paint film is placed in fixed mechanism in the way of perpendicular to level；
One end of detection piece is in contact with the edge of base material so that the angle of detection piece and base material facade is 45 °；
Set some magnitudes of voltage from low to high in 0V~1,000V voltage range, 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 each set test voltage value respectively
To base material side along detecting, i.e.,：
Base material side edge is imposed after the test voltage of setting by detection piece, the detection piece being in contact with the edge of base material
One end, the other end (required total time is designated as T) on base material side edge is at the uniform velocity slided to along the one end on base material side edge, in the process,
The change of numerical value shown in optical viewer, when the numerical value shown in instrument changes, then numerical value change shown in start recording instrument
Time t, produce t/T ratio, be designated as Z1, and be repeated once, be designated as Z2；
If the average value of Z1 and Z2 two times result is more than 90%, show to close under the test voltage in electrodeposited paint film
Lattice, can proceed the test of next higher voltage value.
Thus method, edge protective value that can be to various electrophoretic paints in the product development of electrophoretic paint is digitized
Quantitative collection, to digitize means, realizes database sharing, be electrophoretic paint formula determination and screening there is provided analogue data
And prediction, according to the requirement of different edge protective values, accelerate the electrophoretic paint exploitation of various models.
For in the direct applied high-quality electrophoretic paint of body of a motor car, test of its paint film to edge protective value should expire
It is qualified that the average value that foot is tested twice under 1,000V test voltages is considered as more than 90%.
The beneficial effect that technical solution of the present invention is realized：
The detection electrodeposited paint film that the present invention is provided is to the method for edge protective value, and compared with salt mist experiment, it is detected into
This is low, time-consuming short, and with preferable reappearance.
The method that the present invention is provided, is that one is obtained after instrument data most by applying voltage on edge paint film and reading
The result quantized eventually, the result has stronger selectivity for evaluating the edge protective capability of electrophoretic paint product in itself.
The method that the present invention is provided, can also be applied to the database structure of electrophoresis paint formula and paint film to edge protective capability
Build, realize that electrophoresis paint formula and paint film carry out the number of data acquisition, data relationship structure and judged result to edge protective capability
Word.The relation of electrophoresis paint formula and paint film to edge protective capability is set up by digitlization means, electrodeposited paint film can be realized
The digital simulation of formula and prediction, meet electrophoretic paint of the different edge along protection requirement for quick exploitation and provide foundation.
Embodiment
Technical scheme 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 the present invention is described in detail with reference to preferred embodiment, it will be understood by those within the art that,
The technical scheme of invention can be modified or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention,
It all should cover in scope of the presently claimed invention.
A kind of method for detecting electrodeposited paint film to base material side along protective value, including：
The base material that edge has been formed into electrodeposited paint film is placed in fixed mechanism in the way of perpendicular to level；
One end of detection piece is in contact with the edge of base material so that the angle of detection piece and base material facade is 45 °；
Set some magnitudes of voltage from low to high in 0V~1,000V voltage range, 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 each set test voltage value condition
It is lower that base material side edge is detected respectively, i.e.,：
Base material side edge is imposed after 50V test voltage by detection piece, the detection piece being in contact with the edge of base material
One end, the other end (required total time is designated as T) on base material side edge is at the uniform velocity slided to along the one end on base material side edge, in the process,
Optical viewer shows numerical value, when the numerical value shown in instrument changes, then the time of numerical value change shown in start recording instrument
T, produces t/T ratio, is designated as Z1, and is repeated once, and is designated as Z2.
If the average value of Z1 and Z2 two times result is more than 90%, show to close under 50V test voltages in electrodeposited paint film
Lattice, can proceed the test of next higher voltage value, i.e. 100V.
If the average value of measured two times result is more than 90% under 100V voltages, 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 proceeded.
If the average value of measured two times result is more than 90% under 200V voltages, 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 proceeded.
If the average value of measured two times result is less than 90% under 400V voltages, show in electrodeposited paint film in 400V
It is unqualified under test voltage, without the test for proceeding 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, it is painted
, can also be since the test of 400V voltages, no longer to low when film is tested using the method for the present embodiment edge protective value
The detection of edge protective value is carried out in below 400V test voltage.
If the average value of measured two times result is more than 90% under 400V voltages, show in electrodeposited paint film in 400V
It is qualified under test voltage, proceed 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, test of its paint film to edge protective value should expire
The average value that foot tests twice under 1,000V test voltages is more than 90%, then is considered as qualified electrodeposited paint film.
By the detection method of the present embodiment, the table that quickly quantizes can be carried out to the edge protective value of electrodeposited paint film
Levy, electrophoresis paint formula can also be digitized, thereby establish the pass of electrophoresis paint formula and paint film to edge protective capability
System, can realize digital simulation and the prediction of electrodeposited paint film formula, be that quick exploitation meets the electrophoresis that different edge is required along protection
Paint provides foundation.
Claims (7)
1. a kind of method for detecting electrodeposited paint film to base material side along protective value, it is characterised in that including：
The base material that edge has been formed into electrodeposited paint film is placed in fixed mechanism in the way of perpendicular to level；
One end of detection piece is in contact with the edge of base material so that the angle of detection piece and base material facade is 45 °；
Set some magnitudes of voltage from low to high in 0V~1,000V voltage range, be consequently formed one group of presentation ladder upward
Test voltage distributional pattern；
Since set minimum amount of voltage that, from low to high, respectively to base under the conditions of each set test voltage value
Edge is along being detected, i.e.,：
Base material side edge is imposed after the test voltage of setting by detection piece, the one of the detection piece being in contact with the edge of base material
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 designated as into T, in the process,
The change of numerical value shown in optical viewer, when the numerical value shown in instrument changes, then numerical value change shown in start recording instrument
Time t, produce t/T ratio, be designated as Z1, and be repeated once, be designated as Z2；
If the average value of Z1 and Z2 two times result be more than 90%, show electrodeposited paint film under the test voltage it is qualified, can
To proceed the test of next higher voltage value.
2. method of the detection electrodeposited paint film according to claim 1 to base material side along protective value, it is characterised in that described
Upward test voltage distributional pattern each magnitude of voltage of one group of presentation ladder be：50V, 100V, 200V, 400V and 1,000V.
3. method of the detection electrodeposited paint film according to claim 1 to base material side along protective value, it is characterised in that described
Upward test voltage distributional pattern each magnitude of voltage of one group of presentation ladder be：400V and 1,000V.
4. method of the detection electrodeposited paint film according to claim 1 to base material side along protective value, matches somebody with somebody setting up electrophoretic paint
Side and paint film are to the application in the database of edge protective value.
5. a kind of method for setting up electrophoresis paint formula and paint film to the database of edge protective value, it is characterised in that usage right
It is required that 1~3 method gathered data, and set up the relation of electrophoresis paint formula and paint film to edge protective value.
6. method according to claim 5, it is characterised in that described electrophoresis paint formula and paint film are to edge protective value
For Digitized Structure.
7. a kind of database, it is characterised in that the method for usage right requirement 1~3 carry out data acquisition, data relationship build and
Digitized Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN107179333A true CN107179333A (en) | 2017-09-19 |
| CN107179333B CN107179333B (en) | 2019-08-16 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104914154A (en) * | 2015-06-09 | 2015-09-16 | 武汉钢铁(集团)公司 | Electrophoresis experimental device for automobile leaf-spring |
| 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 |
| 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 |
-
2017
- 2017-06-20 CN CN201710472389.3A patent/CN107179333B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| 北京油漆厂等: "GB 1763/79", 《中国人民共和国国家标准》 * |
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