CN105821464B - A kind of electrophoresis tests device and the mixed slot technique using the device - Google Patents
A kind of electrophoresis tests device and the mixed slot technique using the device Download PDFInfo
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- CN105821464B CN105821464B CN201610013771.3A CN201610013771A CN105821464B CN 105821464 B CN105821464 B CN 105821464B CN 201610013771 A CN201610013771 A CN 201610013771A CN 105821464 B CN105821464 B CN 105821464B
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- electrophoresis
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- mixed slot
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of electrophoresis tests devices, and the mixed slot technique using the electrophoresis tests device, the technique include the physical function parameter of tank liquor parameter detecting after the sampling of new, old tank liquor, mixing, mixing, upper electrophoresis experimental rig detection electrodeposited paint film.The present invention utilizes the small range before the formal mixed slot of electrophoresis tests device progress, low dose of test, it is new in mixed slot test, old tank liquor dosage is small, it prepares quick, slot test can be mixed with a variety of ratios, when test result is not reached requirement through examining, can more be rescaled reconfiguration repeatedly, until meeting technique requirement, after ensuring that properties reach requirement, just formally throw slot according to the ratio in large trough, it is formally produced, can avoid the quality of lot accident that may cause after the directly mixed slot of the prior art thus bring and cost waste, reduce production risk.
Description
Technical field
The present invention relates to a kind of painting dressing automobiles experimental rig and using the coating testing and measuring technology of the device, more specifically,
It is related to a kind of electrophoresis tests device and the mixed slot technique using the device.
Background technique
Cathode electro-coating is a coating process critically important in car coating production, and the vehicle body by pre-treatment is by defeated
Device drives are sent to enter in the water soluble paint in ability cathode electrophoresis slot.Tree under the action of DC electric field, in water soluble paint
Rouge, face base-material are uniformly precipitated on cathode bodywork surface, and deposition forms paint film not soluble in water, and ability cathode electrophoresis includes electrophoresis, electricity
Deposition, electric osmose, electrolysis Four processes.In electrophoretic painting production process, with the lasting progress of electro-chemical reaction, tank liquor not breakdown
Consumption and quality deterioration, gradually have an adverse effect to final products performance, need in production process periodically to the old of degeneration thus
Tank liquor is updated, this renewal process is realized by mixed slot displacement.The existing common electrophoresis in production scene mixes slot side
Method is: terminate to be sampled analysis to old tank liquor composition according to the production of same day shift, calculate resin that same day production consumption is fallen with
Pigment mixes slot ratio further according to the old and new's electrophoresis paint material, directly with addition of new batch of graining paste, resin and solvent etc., directly to
Tank liquor analysis is fed and then remake in electrophoresis tank, as long as parameter meets technique requirement, can carry out the production of lower shift, when production
ED detection plate is hung with line on First vehicle body, drying detects its paint film property after slot out.But the method has following defects that mixed
After the completion of slot adjustment, the physical and chemical parameter of mixed slot itself often easily reaches technique requirement, still, nonetheless, due to electrophoresis
Old tank liquor such as constantly changes at the reasons, and the paint film appearance generated in actual production can also generate some variations, form some defects, such as
Paint film is coarse, pin hole, piebald, shrinkage cavity, loss of gloss etc., and produces carried out at this time, wait pass through the ED detection plate on the first trolley
It was found that when the paint film property that generates of the tank liquor after mixed slot is not up to standard, have it is considerable there are the generation of the defective products of drawbacks described above,
So as to cause quality of lot accident.The patent of invention of Publication No. CN1958174A discloses a kind of automobile on May 9th, 2007
Manufacturing technique for painting dressing, including pre-cleaning process, pre- degreasing process, degreasing process, 1 st pure water wash process, table tune process, phosphatization
Process, second pure water wash process, passivation procedure, a deionization washing step, electrophoresis process, a UF liquid and wash process, secondary
UF liquid washes process, secondary deionized water washes process, which is characterized in that in the production technology, using equipped with 3.5-4.5 ms/min
The PK double-strand calabash of clock；When being related to degreasing process, phosphatization process and electrophoresis process, using the groove body for adapting to the process, make single
The average productive temp of vehicle rises to minute/2.5-4.5.The present invention to be solved in assembly line manufacturing technique for painting dressing, no
The technical issues of capable of producing in enormous quantities, and a kind of painting dressing automobiles pre-treatment, electrophoresis production technology are provided, he has small investment, accounts for
Ground area is small, operation and maintenance cost is few, process selectivity is strong, improves the advantages that product quality.But the technique is not related to mixed slot
The solution of relevant issues during technique and mixed slot.
Summary of the invention
Existing electrophoresis mixes slot technique, and there are loopholes in quality control, quality of lot accident are easily caused, to overcome this
Defect the present invention provides a kind of electrophoresis tests device that can more effectively control painting dressing automobiles quality and utilizes the mixed of the device
Slot technique.
The technical scheme is that a kind of electrophoresis tests device, including electrophoresis tests sulculus, pressure stabilizing adjustable DC power supply
With temperature controllable blender, electrophoresis tests sulculus includes cathode, electrophoresis plate and anode, and electrophoresis tests sulculus is placed in temperature controllable blender
On, cathode, anode and pressure stabilizing adjustable DC power electric connection.The present apparatus can provide when electrophoresis liquid configures in actual production
Process environments are convenient for small lot electrophoresis liquid configuration processing simulation, may not necessarily be debugged repeatedly with production facility in this way,
Avoid the waste of mass production goods and materials and the energy.
Preferably, temperature controllable blender is equipped with temperature adjustment knob and speed adjusting knob.Temperature controllable mixing tool
There are temperature adjusting and mixing speed regulatory function, it is electric in analog actual production by adjusting the tachometer value and temperature value of test
The paint solution circulatory system of slot of swimming and the flowing velocity and temperature of heat-exchange system adjusting paint solution.
Preferably, pressure stabilizing adjustable DC power supply is equipped with voltage adjusting knob and current adjusting knob.Pressure stabilizing straight-adjustable
Voltage adjusting knob and current adjusting knob are set on galvanic electricity source, and for the voltage value or current value of Adjustment Tests, analog is real
The one section of low-voltage and two sections of high voltages of electrophoresis tank in the production of border.
Preferably, annode area and cathode area ultimate ratio are 1:5~1:3.Productive power swim slot on annode area with
Cathode area ultimate ratio also also uses the cathode and anode of same range to match in the range of 1:5~1:3, therefore in electrophoresis tests device
Proportionate relationship is set, test data is closer to actual production.
A kind of mixed slot technique using the electrophoresis tests device, includes the following steps:
A. old tank liquor is taken in the mixed slot ratio of test and be newly hybridly prepared into electrophoretic paint with each portion of tank liquor, and detect mixing channel
Liquid parameter；
B. by the electrophoretic paint injection electrophoresis tests sulculus of preparation, electrophoresis plate is hung on cathode and immerses electrophoretic paint；
C. start temperature controllable blender；
D. pressure stabilizing adjustable DC power supply is connected, is slowly raised to voltage from 0V in 14~16 seconds by voltage adjusting knob
58~62V；Voltage was slowly raised to 168~172V from 58~62V in 14~16 seconds again and keeps final voltage 148~152
Second；
E. it takes out after electrophoresis plate rinses draining and dries, detect the physical function parameter of electrodeposited paint film on electrophoresis plate, such as meet
Technique requirement then feeds by this with the electrophoresis tank compared in production；It is such as unsatisfactory for technique requirement, then changes mixed slot ratio again
Test preparation is until meet technique requirement.
Small range, low dose before the formal mixed slot of this technology utilization electrophoresis tests device progress are tested, new in mixed slot test,
Old tank liquor dosage is small, prepares quickly, and slot test can be mixed with a variety of ratios can be repeatedly when test result is not reached requirement through examining
More rescale reconfiguration, until meeting technique requirement, it is ensured that after properties reach requirement, just formally throw according to the ratio in large trough
Slot is formally produced, can avoid the quality of lot accident that may cause after the directly mixed slot of the prior art thus bring and at
This waste reduces production risk.
Preferably, the temperature control of temperature controllable blender is at 25~27 DEG C, mixing speed is 2000~2200 revs/min.
25~27 DEG C of techniques for meeting actual production require, and caused tank liquor flow velocity was both sharp when mixing speed is 2000~2200 revs/min
Yu Xin, old tank liquor quickly mix, and can ensure that physicochemical property is uniform inside tank liquor after mixing.
Preferably, current control is in 0.1~0.15A in step D.Current control meets electrophoresis electricity in 0.1~0.15A
The manufacturing technique requirent for flowing 10A/M2, meets production actual requirement, it is ensured that this method has practical operability.
Preferably, mixing bath parameters described in step A includes pH value, conductivity, solid part, pigment, sour milligram
Equivalent MEQ-ACID, alkali milliequivalent MEQ-BASE, solvent content BC, solvent content PM and total solvent content.These parameters
Obtaining facilitates comprehensive, accurately assessment mixing tank liquor working performance, provides guide direction to mix the preparation improvement of tank liquor.
Preferably, the physical function parameter of electrodeposited paint film described in step E include appearance, it is shrinkage cavity grade, adhesive force, hard
Degree, impact resistance, roughness and throwing power.These parameters can directly reflect the quality of the generation product of mixing tank liquor, facilitate more
Comprehensively, the mixed effect and working performance of mixing tank liquor are more accurately assessed.
The beneficial effects of the present invention are:
Quality of lot accident is avoided, production risk is reduced.The present invention utilizes electrophoresis tests device, produces in formal mixed slot
Before, it carries out replacing the small range of tank liquor, low dose of test by a certain percentage, it is ensured that after properties reach requirement, just in large trough
On throw slot according to the ratio and formally produced, can avoid in this way by the quality of lot thing being likely to occur after the directly mixed slot of prior art
Therefore reduce the risk for quality accident occur.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of the invention；
Fig. 2 is a kind of structural schematic diagram of electrophoresis tests device used in the present invention；
Fig. 3 is a kind of table of record mixing bath parameters in the present invention；
Fig. 4 is a kind of table of tank liquor electrodeposited paint film parameter generated after recording mixed slot in the present invention.
In figure, 1- cathode, 2- electrophoresis plate, 3- electrophoretic paint, 4- electrophoresis tests sulculus, 5- anode, 6- pressure stabilizing straight-adjustable galvanic electricity
Source, 7- voltage adjusting knob, 8- anode, 9- current adjusting knob, 10- cathode, 11- temperature adjustment knob, the stirring of 12- temperature controllable
Device, 13- speed adjusting knob.
Specific embodiment
The invention will be further described for specific embodiment with reference to the accompanying drawing.
Embodiment 1:
As shown in Figure 1 and Figure 2, a kind of electrophoresis tests device, comprising: electrophoresis tests sulculus 4,6 and of pressure stabilizing adjustable DC power supply
Temperature controllable blender 12, electrophoresis tests sulculus 4 include cathode 1, electrophoresis plate 2 and anode 5,5 area of anode and 1 area ultimate ratio of cathode
For 1:4, electrophoresis tests sulculus 4 is used to contain electrophoretic paint 3, and pressure stabilizing adjustable DC power supply 6 is equipped with positive 8, cathode 10, voltage tune
Save knob 7, current adjusting knob 9 etc.；Temperature controllable blender 12 is equipped with speed adjusting knob 13, temperature adjustment knob 11 etc..
Electrophoresis tests sulculus 4 is stably placed on temperature controllable blender 12, it is same flat that pressure stabilizing adjustable DC power supply 6 is placed on its side
On face；Cathode 1 is connected with cathode 10 using cable, anode 5 is connected with anode 8.
A kind of mixed slot technique using electrophoresis tests device, includes the following steps:
A. it determines that 10% test mixes slot ratio, mixes slot ratio according to this test and take old tank liquor and new slot allocation with beaker respectively
Each portion of liquid, old volume of bath solution are 9 times of new volume of bath solution；
B. two kinds of tank liquors are mixed, is sufficiently stirred with temperature controllable blender 12, mixing speed is 2000 revs/min, is configured to
Electrophoretic paint 3, and this electrophoretic paint configured is designated as No. 1 sample；
C. detection mixing bath parameters, surveyed reference record in table as shown in Figure 3, the parameter that need to be surveyed include pH value,
Conductivity, solid part, pigment, sour milliequivalent MEQ-ACID, alkali milliequivalent MEQ-BASE, solvent content BC, solvent contain
Measure PM and total solvent content；
D. the electrophoretic paint 3 of above-mentioned preparation is injected in the electrophoresis tests sulculus 4 of electrophoresis tests device, liquid level is led from cathode 1
Torch 20mm；
E. it electrophoresis plate 2, hangs on cathode 1；
F. the power switch for opening temperature controllable blender 12, rotates 12 to 26 DEG C of temperature controllable blender, selects appropriate stirring
Speed guarantees that 3 directed flow of electrophoretic paint is good；
G. soft start, connects pressure stabilizing adjustable DC power supply 6, and rotational voltage adjusting knob 7 slowly rises voltage from 0V manually
To 60V, pressure rising time is 15 seconds；
Voltage is slowly raised to 170V from 60V by H. rotational voltage adjusting knob 7, and pressure rising time is 15 seconds, then keeps electricity
Pressure 170V constant 150 seconds, electric current 0.1A meets the manufacturing technique requirent of electrophoretic current 10A/M2；
I. temperature controllable blender 12 is shut down, pressure stabilizing adjustable DC power supply 6 is cut off；
J. electrophoresis plate 2 is taken out, after rinsing draining with deionized water, is put into the constant temperature oven that temperature is 173~176 DEG C and dries
It is 20 minutes roasting；
Whether the physical function parameter for K. detecting electrodeposited paint film on electrophoresis plate 2 meets technique requirement, and surveyed reference record exists
In table as shown in Figure 4, the parameter that need to be surveyed includes that appearance, shrinkage cavity grade, adhesive force, hardness, impact resistance, roughness and swimming are saturating
Power feeds by this with the electrophoresis tank compared in production if meeting technique requirement；If being unsatisfactory for technique requirement,
Change mixed slot ratio, prepare and tested again, primary per preparing again, sample number into spectrum is also accordingly changed, until meeting technique
Until it is required that.
Embodiment 2:
Liquid level rotates 12 to 25 DEG C of temperature controllable blender from 1 conductive rod 19mm of cathode, and mixing speed is 2200 in step B
Rev/min, voltage from 0V is slowly raised to 62V in 16 seconds in step G, and voltage from 62V is slowly raised to 172V in 16 seconds in step H
And maintaining 172V voltage 148 seconds, current control constant temperature oven control in 0.15A, step J is toasted 19 minutes at 173 DEG C, sun
5 area of pole and 1 area ultimate ratio of cathode are 1:5.
Embodiment 3:
Liquid level rotates 12 to 27 DEG C of temperature controllable blender from 1 conductive rod 21mm of cathode, in step G in 14 seconds voltage from
0V is slowly raised to 58V, and voltage is slowly raised to 168V from 58V and maintains 168V voltage 152 seconds in 14 seconds in step H, electric current control
System constant temperature oven control in 0.13A, step J is toasted 21 minutes at 176 DEG C, and 5 area of anode and 1 area ultimate ratio of cathode are 1:
3。
Claims (3)
1. a kind of mixed slot technique using electrophoresis tests device, the electrophoresis tests device include electrophoresis tests sulculus (4), pressure stabilizing
Adjustable DC power supply (6) and temperature controllable blender (12), electrophoresis tests sulculus (4) include cathode (1), electrophoresis plate (2) and anode
(5), electrophoresis tests sulculus (4) is placed on temperature controllable blender (12), cathode (1), anode (5) and pressure stabilizing adjustable DC power supply
(6) it is electrically connected, it is characterized in that including the following steps:
A. old tank liquor is taken in the mixed slot ratio of test and be newly hybridly prepared into electrophoretic paint (3) with each portion of tank liquor, and detect mixing channel
Liquid parameter；
B. the electrophoretic paint of preparation (3) are injected in electrophoresis tests sulculus (4), electrophoresis plate (2) is hung on cathode (1) and immerses electricity
Swimming paint (3)；
C. start temperature controllable blender (12), at 25~27 DEG C, mixing speed is for the temperature control of temperature controllable blender (12)
2000~2200 revs/min；
D. pressure stabilizing adjustable DC power supply (6) are connected, is slowly risen voltage from 0V in 14~16 seconds by voltage adjusting knob (7)
To 58~62V；Voltage was slowly raised to 168~172V from 58~62V in 14~16 seconds again and keep final voltage 148~
152 seconds, current control was in 0.1~0.15A；
E. it takes out after electrophoresis plate (2) rinse draining and dries, the physical function parameter of electrodeposited paint film in detection electrophoresis plate (2) is such as full
Sufficient technique requirement, then feed by this with the electrophoresis tank compared in production；It is such as unsatisfactory for technique requirement, then changes mixed slot specific gravity
New test preparation is until meet technique requirement.
2. mixed slot technique according to claim 1, it is characterized in that mixing bath parameters described in step A includes pH value, electricity
Conductance, solid part, pigment, sour milliequivalent MEQ-ACID, alkali milliequivalent MEQ-BASE, solvent content BC, solvent content
PM and total solvent content.
3. mixed slot technique according to claim 1 or 2, it is characterized in that the physical property of electrodeposited paint film described in step E is joined
Number includes appearance, shrinkage cavity grade, adhesive force, hardness, impact resistance, roughness and throwing power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610013771.3A CN105821464B (en) | 2016-01-08 | 2016-01-08 | A kind of electrophoresis tests device and the mixed slot technique using the device |
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| CN201610013771.3A CN105821464B (en) | 2016-01-08 | 2016-01-08 | A kind of electrophoresis tests device and the mixed slot technique using the device |
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| CN105821464A CN105821464A (en) | 2016-08-03 |
| CN105821464B true CN105821464B (en) | 2019-03-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109374718A (en) * | 2018-02-12 | 2019-02-22 | 蔚来汽车有限公司 | Film properties detection method and device on electrophoresis |
| CN111088515A (en) * | 2019-12-31 | 2020-05-01 | 枣阳市旺前电泳涂料有限公司 | High-throwing-power electrophoretic paint mixing tank method |
| CN115747922A (en) * | 2022-11-22 | 2023-03-07 | 东风柳州汽车有限公司 | Recovery method of electrophoresis tank liquid |
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| CN201770796U (en) * | 2010-08-31 | 2011-03-23 | 重庆长安汽车股份有限公司 | Electrophoretic apparatus used in laboratory |
| CN204039531U (en) * | 2014-08-28 | 2014-12-24 | 香港生产力促进局 | A kind of electrophoretic deposition set on conductive surface |
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Granted publication date: 20190329 Termination date: 20210108 |