CN109415838A - Electrolytic degreasing method and electrolytic degreasing device - Google Patents
Electrolytic degreasing method and electrolytic degreasing device Download PDFInfo
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- CN109415838A CN109415838A CN201780036041.8A CN201780036041A CN109415838A CN 109415838 A CN109415838 A CN 109415838A CN 201780036041 A CN201780036041 A CN 201780036041A CN 109415838 A CN109415838 A CN 109415838A
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- cleaned object
- alkaline water
- electrolytic degreasing
- electrolyzed alkaline
- degreasing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G3/00—Apparatus for cleaning or pickling metallic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
Abstract
The present invention provides a kind of electrolytic degreasing method and the electrolytic degreasing device using this method, electrolytic degreasing method of the invention can prevent the pollutant of removal to be attached on cleaned object again more effectively from pollutants such as the surface of cleaned object removal oils.Electrolytic degreasing method of the invention electrolyzed alkaline water is removed in pollutants such as the oils of surface attachment of cleaned object, it is characterized in that, cleaned object and anode electrode are configured in electrolyzed alkaline water and are powered, cathodic polarization is cleaned object, to form the bubble hydrogen of diameter 20nm~10 μm on the surface of cleaned object, it is crushed bubble hydrogen near the surface of cleaned object, utilize the pollutant of the surface attachment of the broken shock wave removal generated in cleaned object, the anode electrode has electrode catalyst layer on its surface, the electrode catalyst layer contains 10g/m2~20g/m2The yttrium oxide of amount.Electrolytic degreasing device of the invention is for implementing this method.
Description
Technical field
The present invention relates to it is a kind of for remove the pollutant of the surface of cleaned object attachment electrolytic degreasing method,
And the electrolytic degreasing device for implementing the electrolytic degreasing method.
Background technique
In general, needing to remove surface processed when electroplating processes or painting treatment are implemented in the surface of industrial part and existing
Pollutant, and be removed the processing of pollutant existing for the surface of industrial part as implementing at electroplating processes or coating
Pretreatment before reason.Pollutant is mostly the oils such as the oil of water solubility used in manufacturing process or non-aqueous oil.These pollutants
After remaining in the surface of industrial part, cause plating or the envelope of coating itself that can not be formed, even if or be capable of forming plating or
The envelope of coating, film thickness can also generate big fluctuation.
Therefore, the previous pretreatment as before electroplating processes or painting treatment are implemented in the surface of industrial part, uses
Ungrease treatment.As the method for degreasing, there are alkaline degreasing and electrolytic degreasing etc..Alkaline degreasing is to be immersed in treated object mainly
Alkaline degreaser containing the various alkali compounds such as hydroxide, phosphate, silicate, carbonate and surfactant
It carries out.Electrolytic degreasing is identical as alkaline degreasing, implements electrolysis using alkaline degreaser and for object processed, utilizes surface
The gas of generation physically removes dirt.When object processed is cathode, gone using the hydrogen of Surface Creation come physics
Except the dirt on surface, when object processed is anode, the dirt on surface is aoxidized, decomposed using the oxygen of Surface Creation, from
And it is removed.
For example, patent document 1 is the prior art using electrolytic degreasing method.Patent document 1 discloses a kind of " conduction
The electrolytic degreasing method of component, which is characterized in that including having the conductive component of the foreign matters such as oil, rust, dirt as yin on surface
Pole, using metal electrode as anode, by the process of the anode and the cathode dipping in the electrolytic solution, in the electrolyte
Anode and the cathode between apply voltage, flow electric current between two electrodes, thus in the conductive component continuous surface
The process for generating bubble, using mechanical stirring caused by the bubble, the process that removes the foreign matter from the conductive component surface "
Technical solution.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 10-245700 bulletin
Summary of the invention
Problems to be solved by the invention
However, the technical solution of above patent document 1 is electrolyte of the electrolysis as alkaline degreaser, using in composition yin
Mechanical stirring caused by the hydrogen of the Surface Creation of the conductive component of pole and cathodic reduction remove the foreign matter on conductive component surface,
Not can be removed surface thus has the foreign matter of conductive component of complicated fine bumps.This is because, electrolysis contains alkaline chemical combination
It is larger in the bubble hydrogen of the Surface Creation of conductive component when the electrolyte of object and surfactant, it is deposited on the surface of conductive component
When being less than the recess portion of the bubble, which cannot be introduced into the reason in the recess portion.
Also, in patent document 1, the foreign matters such as oil removed using electrolytic degreasing from conductive component surface swim in electrolysis
In liquid, thus when lifting conductive component from the electrolyte, the foreign matter separated from its surface can adhere to again, and there is foreign matter quilts
The problem being brought into the slot for carrying out next process.In turn, for the electrolyte that the concentration of the oil etc. increases, exist
Wastewater treatment become complicated problem.
In view of the above problems, even if market, which waits in expectation, develops the cleaned object of one kind on its surface with complicated essence
The pollutant that thin bumps also more can effectively remove the pollutants such as oil, and can eliminate removal is attached to cleaned again
The electrolytic degreasing method and electrolytic degreasing device of the problem of object.
Solution to the problem
To solve the above-mentioned problems, present inventor has performed concentrating on studies, it is de- that result contemplates electrolysis as described below
Rouge method and electrolytic degreasing device.
Electrolytic degreasing method: electrolytic degreasing method of the invention electrolyzed alkaline water removes on the surface of cleaned object
The pollutants such as the oil of attachment, which is characterized in that cleaned object and anode electrode are configured in electrolyzed alkaline water and are powered,
Cathodic polarization is cleaned object, to form the bubble hydrogen of diameter 20nm~10 μm on the surface of cleaned object, makes hydrogen
Bubble is crushed near the surface of cleaned object, using broken shock wave (cavitation phenomena) removal generated cleaned
The pollutant of the surface attachment of object, the anode electrode have electrode catalyst layer on its surface, which contains
There is 10g/m2~20g/m2The yttrium oxide of amount.
In electrolytic degreasing method of the invention, it is preferable to use containing potassium carbonate and potassium hydroxide for the electrolyzed alkaline water
The aqueous solution of pH11~pH13.
In electrolytic degreasing method of the invention, with the ultrasonic irradiation bubble hydrogen preferably in electrolyzed alkaline water, to make
Bubble hydrogen near the surface of cleaned object is broken.
Electrolytic degreasing method of the invention preferably make be powered when the anode electrode generate superoxide anion and from
The cleaned object surface removal oil reacted in the electrolyzed alkaline water, thus by the oil resolve into carbon and
Carbon dioxide.
Electrolytic degreasing device: electrolytic degreasing device of the invention is to clean cleaned object with above-mentioned electrolytic degreasing method
Surface electrolytic degreasing device, which is characterized in that have
The degreasing bath of electrolyzed alkaline water is stored,
The anode electrode configured in the degreasing bath,
The cleaned object is configured in the electrolyzed alkaline water with the state impregnated, this cleaned pair of cathodic polarization
As object, so that the energization unit of the bubble hydrogen of diameter 20nm~10 μm is formed on the surface for being cleaned object,
The bubble hydrogen fragmentation cell for keeping the bubble hydrogen near the surface of the cleaned object broken, and
The circulating filtration unit of the electrolyzed alkaline water,
The circulating filtration unit is filtered after the electrolyzed alkaline water that the degreasing bath overflows using filter element, is returned to this
The lower part of degreasing bath.
In electrolytic degreasing device of the invention, the anode electrode preferably uses iridium oxide electrode.
In electrolytic degreasing device of the invention, the preferably described degreasing bath at least inner surface is by the material that can reflect ultrasonic wave
It is formed, the anode electrode has the interconnecting part that can penetrate ultrasonic wave.
Also, in electrolytic degreasing device of the invention, the preferably described bubble hydrogen fragmentation cell is to use in electrolyzed alkaline water
Ultrasonic irradiation unit of the ultrasonic irradiation in the bubble hydrogen of the Surface Creation of cleaned object.
The effect of invention
By using electrolytic degreasing method of the invention and electrolytic degreasing device, even there are complicated fine bumps
The pollutant in the attachment of its surface also can be effectively removed in the cleaned object of surface shape.Moreover, from this cleaned pair
As the oil that the surface of object removes can resolve into carbon and carbon dioxide in electrolyzed alkaline water, thus the oil removed will not be again
The secondary surface for being attached to cleaned object.Therefore, electrolytic degreasing method and electrolytic degreasing device according to the present invention, and it is existing
Ungrease treatment method and ungrease treatment device compare, available especially excellent cleaning effect.
Detailed description of the invention
Fig. 1 is the schematic diagram for illustrating a kind of embodiment of electrolytic degreasing device.
Fig. 2 is the schematic diagram for illustrating the another embodiment of electrolytic degreasing device.
The explanation of symbol
1 electrolytic degreasing device, 10 degreasing baths, 11 anode electrodes, 11a interconnecting part, 12 rectifiers (energization unit), 13 ultrasounds
Wave illumination unit (ultrasonic irradiation unit.Bubble hydrogen fragmentation cell), 15 circulation foldback mouths, 16 electrolyzed alkaline water recoverers, 20
Rolled steel strip (cleaned object), 21 shipping lines, 22 hang down component, 23 cleaned objects, 30 circulation filtering mechanisms (circulation
Filter element), 31 filters (filter element), 32 pumps, 33 regulating tanks, 34 circulation with piping, 35 circulation with piping, 36 foldbacks use
Piping
Specific embodiment
Hereinafter, according to " embodiment of electrolytic degreasing method ", the sequence explanation of " embodiment of electrolytic degreasing device "
Embodiments of the present invention.
<electrolytic degreasing method of the invention>
Electrolytic degreasing method of the invention is the oil with electrolyzed alkaline water removal in the surface attachment of cleaned object
The method of equal pollutants.Also, in the present invention, cleaned object and anode electrode are configured in electrolyzed alkaline water and is powered,
Cleaned object is subjected to cathodic polarization, to form the hydrogen of diameter 20nm~10 μm on the surface of cleaned object
Bubble is crushed bubble hydrogen near the surface of cleaned object, is made a return journey using the broken shock wave (cavitation phenomena) generated
Except the pollutant of the surface attachment in cleaned object.Furthermore electrolytic degreasing method of the invention is characterized in that, in the sun
The surface of pole electrode has electrode catalyst layer, which contains 10g/m2~20g/m2The yttrium oxide of amount.Hereinafter,
Illustrate electrolytic degreasing method of the invention.
Electrolyzed alkaline water: " electrolyzed alkaline water " used in the present invention is that will usually be added to the water of electrolyte in membrane type electricity
The aqueous solution in alkalinity that electrolysis is handled is carried out with specified DC current in solution slot.In view of by cleaned object and
Anode electrode configures in electrolyzed alkaline water and when being powered, and forms asking for the micro-nano bubble of hydrogen on the surface of cleaned object
Topic, the electrolyzed alkaline water are preferably the electrolyzed alkaline water for being added to potassium carbonate and potassium hydroxide.
In turn, it is contemplated that by the surface that object is cleaned from this remove oil be decomposed into electrolyzed alkaline water carbon and
The problem of carbon dioxide, the electrolyzed alkaline water are preferably pH11~pH13.Without using pH11 or more electrolyzed alkaline water when, can not
The effect of alkaline degreasing is given full play to, the production efficiency that cannot industrially require.On the other hand, the alkalinity of pH13 is used more than
When electrolysis water, alkaline degreasing effect reaches saturation, causes the waste of chemicals, thus not preferred.
In addition, it is preferable to use " electrolyzed alkaline water of 99.9 mass % of purity or more " when preparing the electrolyzed alkaline water.This is
Since when using " electrolyzed alkaline water that purity is lower than 99.9 mass % ", the microelement contained in water will lead to degreasing performance
Generate the reason of fluctuation.
Cleaned object: as long as cleaned object mentioned in the present invention impregnates in electrolyzed alkaline water, with
Apply voltage between anode electrode to constitute cathode electrode, there is no particular limitation.Therefore, cleaned object is " tool
Conductive metal product ", " at least conductive plastic electroplating product of superficial layer ", " Markite product " etc..
Furthermore for these shape, sizes for being cleaned object etc., also there is no particular limitation, these are without more speeches.
Bubble hydrogen: in the present invention, configuring cleaned object and anode electrode in electrolyzed alkaline water, cleaned at these
It is powered between object and anode electrode, to be formed on the surface that cathodic polarization is cleaned the cleaned object of object
Bubble hydrogen.Bubble hydrogen at this time is preferably the micro-nano bubble of bubble diameter 20nm~10 μm.It is difficult when bubble diameter is lower than 20nm
To determine the bubble diameter, thus it is defined as lower limit value.On the other hand, when bubble diameter is more than 10 μm, in cleaned object
Surface have fine concaveconvex shape situation, be difficult to enter recess portion after bubble diameter is excessive, be unable to get sufficient electricity
Degreasing effect is solved, it is thus not preferred.
Here, illustrate " micro-nano bubble "." micro-nano bubble " is to indicate in solution " micron bubble " and " nano bubble "
With term existing for mixed state.The diameter that " micron bubble " typically refers to bubble is the fine gas of 1 μm~10 μ ms
Bubble.Furthermore " nano bubble " is the bubble more finer than micron bubble, usually the bubble of 1 μm of nm unit below is known as
Nano bubble.Bubble at this time is extremely fine, and generating also can not with the naked eye be confirmed, is rendered as transparent water.
The technology for manufacturing nano bubble is not yet established completely, and use has " method for crushing micron bubble to generate ", " uses
The method that SPG (Shirasu Porous Glass) film generates " " is discharged from the film in the hole for having Nano grade opening diameter and is compressed
Method of gas " etc..In contrast, the present invention is to configure cleaned object and anode electrode in electrolyzed alkaline water, at this
It is powered between cleaned object and anode electrode to be electrolysed processing electrolyzed alkaline water, thus at cleaned pair of composition cathode electrode
As the Surface Creation of object includes " the micro-nano bubble " of " hydrogen nano bubble ".Especially, by being added in electrolyzed alkaline water
The potassium carbonate of 2.8g/L or more can include more effectively " hydrogen nano bubble " in the Surface Creation of cleaned object
" micro-nano bubble ".
In turn, other than the potassium carbonate, preferably potassium hydroxide is added in electrolyzed alkaline water.It is preferred that combination potassium carbonate
It is added in electrolyzed alkaline water with potassium hydroxide, and the concentration for keeping the two total reaches 2.8g/L~5.6g/L.Potassium carbonate and hydrogen
It, can not be by the life of the micro-nano bubble of hydrogen when adding the potassium carbonate and potassium hydroxide when the total concentration of potassium oxide is lower than 2.8g/L
It is maintained more than to a certain degree at efficiency.On the other hand, when the concentration that potassium carbonate and potassium hydroxide add up to is more than 5.6g/L, hydrogen is micro-
The generation effect of nano bubble is saturated, and causes the waste of chemicals, thus not preferred.
Also, the power on condition in electrolysis processing preferably uses 5000mA/dm2~15000mA/dm2The electric current of range.
Using lower than 5000mA/dm2Current value when, degreasing speed is slow, be unable to satisfy the production performance of demand of industrial production, because without
It is preferred that.On the other hand, 15000mA/dm is utilized more than2Current value when, there are concave-convex feelings on the surface of cleaned object
Shape, the current convergence of protrusion become significantly, and the surface of cleaned object is difficult to equably electrolytic degreasing, thus not preferred.
In turn, the processing time of electrolysis processing is preferably 3 seconds~5 seconds ranges.Here, when the processing of electrolysis processing
Between when being lower than 3 seconds, the surface of cleaned object is difficult to be sufficiently carried out electrolytic degreasing processing, thus not preferred.On the other hand,
When the processing time of electrolysis processing is more than 5 seconds, electrolytic degreasing ability saturation, it is contemplated that treatment effeciency is undesirable.
The generation of cavitation phenomena: in the present invention, by keeping above-mentioned bubble hydrogen broken, near the surface of cleaned object
The broken caused cavitation phenomena of bubble hydrogen occurs, thus pollutant of the removal in the surface attachment of cleaned object.Hereinafter, saying
The bright method for carrying out " bubble hydrogen broken ".As described above, the situation of the bubble hydrogen in micro-nano bubble regime, is equivalent to and " receives
The bubble of rice bubble " will not disappear without foundation when no application such as impacts at the external factor.Therefore, for the table of cleaned object
The bubble hydrogen near face irradiates ultrasonic wave preferably in electrolyzed alkaline water to carry out " bubble hydrogen broken ".
Occur bubble hydrogen it is broken when, shock wave when being crushed using it is cleaned the pollution such as oil on object surface
The removal efficiency of object is greatly improved.The shock wave generated when broken using the bubble hydrogen in the cavitation phenomena, without concerning quilt
The surface appearance of the shape of cleaning object object, cleaned object, can be effectively removed pollutant.
Anode electrode: in electrolytic degreasing method of the invention, above-mentioned anode electrode has electrode catalyst on its surface
Layer, contain 10g/m in the electrode catalyst layer2~20g/m2The yttrium oxide of amount.Here, anode electrode of the invention is on its surface
With electrode catalyst layer, contain 10g/m in the electrode catalyst layer2~20g/m2The yttrium oxide of amount, thus can be improved durable
Property, the electrolytic degreasing effect can be realized steadily in the long term.Anode electrode of the invention is used using yttrium oxide as main component
Iridium oxide electrode, thus the generation of following bubble hydrogens and the decomposition of oil become easy, and it is de- can to obtain excellent electrolysis
Rouge effect.
When the iridium oxide electrode is used as anode electrode, it can efficiently generate on the surface of iridium oxide electrode with oxygen
" superoxide anion (active oxygen) " of change effect.Being somebody's turn to do " superoxide anion (active oxygen) " makes the oil removed from cleaned object
It aoxidizes and resolves into " carbon " and " carbon dioxide ".As a result, the oil in alkaline electrolysis water float disappears, the oil of removal is not
It can be attached to the surface of cleaned object again.At this point, " carbon " settles in electrolyzed alkaline water, pass through circulating filtration alkaline electro
Solution water can maintain clean state, thus be preferred.
<electrolytic degreasing device of the invention>
Electrolytic degreasing device of the invention is the electrolysis that the surface of cleaned object is cleaned with above-mentioned electrolytic degreasing method
Degreasing plant has the degreasing bath of storage electrolyzed alkaline water, the anode electrode configured in the degreasing bath, by described cleaned pair
It is configured as object with the state being immersed in the electrolyzed alkaline water to carry out the energization unit of cathodic polarization, makes this cleaned pair
As object surface near the broken fragmentation cell of bubble hydrogen.Furthermore electrolytic degreasing device of the invention is characterized in that this is followed
Ring filter element is filtered after the electrolyzed alkaline water that the degreasing bath overflows using filter element, is returned under the degreasing bath
Portion.Hereinafter, illustrating electrolytic degreasing device of the invention based on attached drawing.
Fig. 1 is the schematic diagram for illustrating a kind of embodiment of electrolytic degreasing device.The cleaned object of present embodiment
It is the rolled steel strip 20 that surface remaining has the pollutants such as oil.Has storage alkaline electro using electrolytic degreasing device 1 of the invention
The degreasing bath 10 of Xie Shui, the anode electrode 11,11 impregnated in the electrolyzed alkaline water, the rectifier 12 as energization unit, work
It is (super for the ultrasonic wave irradiation device of the broken means of the bubble hydrogen near 20 surface of rolled steel strip that is impregnated in electrolyzed alkaline water
Sound wave illumination unit) 13.
Electrolyzed alkaline water is stored in degreasing bath 10.For the electrolyzed alkaline water of present embodiment, using being commonly used in
Generate the electrolytic water generating device of electrolyzed alkaline water.Also, the electrolyzed alkaline water uses at least 48 small from electrolysis water generation
When within electrolyzed alkaline water, potassium carbonate and potassium hydroxide are added with prescribed concentration in the electrolyzed alkaline water.
Anode electrode 11 is at least two electrodes are separated specified size to be immersed in opposite directions in electrolyzed alkaline water to configure
It uses.It is substantially parallel and configure each anode electrode 11,11 opposite to each other at this point, in present embodiment.With above-mentioned electrolytic degreasing method
Situation it is identical, each anode electrode 11,11, which is preferably used, makees iridium oxide electrode as main component with yttrium oxide, more preferably at it
Surface, which has, contains 10g/m2~20g/m2The electrode catalyst layer of the yttrium oxide of amount.
Also, in electrolytic degreasing device of the invention, the preferably at least inner surface of degreasing bath 10 material that can be reflected ultrasonic wave
Matter is formed, and anode electrode 11 is preferably provided with the interconnecting part of permeable ultrasonic wave.Here, when anode electrode 11 has interconnecting part, surpass
The direction of advance of sound wave will not be hindered by the anode electrode 11 but in 10 internal reflection of degreasing bath, to promote rolled steel strip 20
Bubble hydrogen near surface is broken.For example, as shown in Fig. 2, the plate is formed as netted it is preferred that forming anode electrode 11 with plate
There is interconnecting part 11a there is interconnecting part 11a or form punching, to improve the transmitance of ultrasonic wave.It is special in the present invention
It is not to form anode electrode 11 with steel wire the transmitance of ultrasonic wave can be further improved when there is interconnecting part 11a, because
And it is more highly preferred to.Also, the inner surface of degreasing bath 10 is stainless steel, it is thus possible to effectively make to irradiate in electrolyzed alkaline water
Ultrasonic wave amplification further promotes the broken of the bubble hydrogen near the surface of cleaned object.
In present embodiment, rolled steel strip 20 is using the pulling unit (not shown) and winder for constituting traveling unit, from one
A direction (pulling unit side) is advanced to other direction (winder side).The rolled steel strip 20 pulled out from pulling unit is in degreasing bath 10
After advancing between the anode electrode 11,11 configured in electrolyzed alkaline water, wound on winder.Therefore, rolled steel strip 20 is in alkalinity
It is located between the anode electrode 11,11 configured in opposite directions in electrolysis water, is to separate specified size with each anode electrode 11,11 to match
It sets.
Also, in order to fully ensure that the electrolytic degreasing on 20 surface of rolled steel strip handles the time, degreasing bath 10 is preferred long
Ground is formed on the direction of travel of the rolled steel strip 20, equally, each anode impregnated in the electrolyzed alkaline water in degreasing bath 10
Electrode 11,11 it is also preferred that be formed on the direction of travel of the rolled steel strip 20 in long way.It is shown in Fig. 1 from pulling unit side or volume
Diagrammatic cross-section when being observed around portion side.
In turn, using as the rectifier 12 of energization unit, apply positive charge in each anode electrode 11,11, in rolled steel
Band 20 applies negative electrical charge.
Also, in the degreasing bath 10, corresponding to the lower section for the position that rolled steel strip 20 is advanced, filled configured with ultrasonic irradiation
Set 13.The ultrasonic wave irradiation device 13 is the energization based on rolled steel strip 20, is nearby generated to the surface of the rolled steel strip 20
Bubble hydrogen irradiates the unit of the ultrasonic wave of 35Hz~45Hz, in the present embodiment using the device of output 100W.Also, this reality
It applies in mode, ultrasonic wave irradiation device 13 is configured in the bottom surface of degreasing bath 10, but the allocation position is not limited thereto, as long as energy
It is enough nearby to irradiate ultrasonic wave to the surface for the rolled steel strip 20 for being applied with negative electrical charge, it can be arbitrary position.
Also, the circulation filtering mechanism (circulating filtration unit) that the degreasing bath 10 has electrolyzed alkaline water is shown in Fig. 1
30 situation.The circulation filtering mechanism 30 at least has as the filter 31 of filter element and by the alkalinity in degreasing bath 10
Electrolysis water is transported to the pump 32 of the filter 31.In present embodiment, near the liquid level of the electrolyzed alkaline water in degreasing bath 10
Height and position, be formed with the electrolyzed alkaline water recoverer 16 for the electrolyzed alkaline water in circulating filtration degreasing bath 10, the alkali
Property electrolysis water recoverer 16 on be connected with circulation piping 34.The circulation is connect with the other end of piping 34 with filter 31, should
Filter 31 is connected with pump 32 via circulation piping 35.The pump 32 is connect with regulating tank 33, which uses via circulation
Piping 36 is connected with the circulation foldback mouth 15 that the electrolyzed alkaline water after filtration treatment is returned to degreasing bath 10.In addition, this implementation
In mode, filter 31 uses polypropylene system.
It is constituted according to above, illustrates the operating of the electrolytic degreasing device 1 of present embodiment.Firstly, first transporting traveling unit
Turn, make rolled steel strip 20 as cleaned object from pulling unit side to winder skidding into.Then, using rectifier 12 to
Each anode electrode 11,11 impregnated in electrolyzed alkaline water applies positive charge, and applies negative electrical charge in rolled steel strip 20.
The electrolyzed alkaline water in degreasing bath 10 is electrolysed as a result, raw on the surface for constituting the rolled steel strip 20 of cathode electrode
At " micro-nano bubble " comprising " hydrogen nano bubble ".Here, from ultrasonic wave irradiation device 13 to the surface of the rolled steel strip 20
Irradiation ultrasonic wave nearby." bubble hydrogen " comprising " micro-nano bubble " that the surface of rolled steel strip 20 is formed about as a result, is surpassed
Sonication, the broken initiation cavitation phenomena of the bubble hydrogen, in the pollutant that the surface of rolled steel strip 20 is adhered to from the rolled steel
20 surface of band is removed.
On the other hand, as the electrolyzed alkaline water in electrolytic degreasing bath 10 is electrolysed, in 11,11 Surface Creation of anode electrode
Oxygen bubbles.At this point, anode electrode uses iridium oxide electrode as described above, thus in the oxygen quilt of the Surface Creation of anode electrode 11
It decomposes, efficiently generates superoxide anion (active oxygen).Near the surface of anode electrode 11, superoxide anion generated
(active oxygen) is diffused into the electrolyzed alkaline water in degreasing bath 10, and the pollution such as oil of removal is separated with from 20 surface of rolled steel strip
Object reaction, and then the oil is aoxidized and resolves into carbon and carbon dioxide.
The carbon dioxide of decomposition is released in atmosphere to be handled as gas.On the other hand, by making to be circulated throughout
The pump 32 of filter structure 30 operates, and the electrolyzed alkaline water containing carbon is from the height near the liquid level in the electrolyzed alkaline water in degreasing bath 10
It spends the electrolyzed alkaline water recoverer 16 that position is formed and reaches filter 31 via circulation piping 34.It is adsorbed using the filter 31
And remove the carbon in electrolyzed alkaline water, eliminate the electrolyzed alkaline water of carbon via circulation piping 35, pump 32, regulating tank 33 from following
Ring foldback mouth 15 is returned in degreasing bath 10.
Electrolytic degreasing device 1 according to the present invention is 20nm in the Surface Creation diameter of the rolled steel strip 20 of cathodic polarization
~10 μm of hydrogen nano bubble, thus in the situation of the surface shape of the rolled steel strip 20 complexity, can also make diameter 20nm~
10 μm of hydrogen nano bubble invades the recess portion of the surface shape.It is broken after invading the illuminated ultrasonic wave of hydrogen nano bubble of recess portion
It is broken, using the broken shock wave generated, can be effectively removed in pollutants such as the oils of recess portion attachment.As a result, with
Past alkaline degreasing method is compared, available especially excellent cleaning effect.
In turn, electrolytic degreasing device 1 according to the present invention, from pollutions such as the oils of the surface of rolled steel strip 20 separation removal
Object is aoxidized when alkaline electrolysis water electrolysis at " superoxide anion (active oxygen) " of the Surface Creation of anode electrode, and " carbon " is resolved into
" carbon dioxide ".Carbon is deposited in electrolyzed alkaline water, thus electrolytic degreasing device 1 of the invention can have sedimentation filtration machine
Structure (not shown).At this point, the carbon of sedimentation is removed by the filtration treatment of the sedimentation filtration mechanism, carbon dioxide is from alkaline electro
Xie Shuizhong is released in atmosphere.Effectively divided from pollutants such as the oils of the surface of rolled steel strip 20 separation removal as a result,
Solution removal, can be avoided the problem of being attached to 20 surface of rolled steel strip again.
In addition, a kind of above-mentioned embodiment, which uses, will be wound into the long ruler-like rolled steel strip 20 of cylinder shape from a side
To pull-out and in the mode of other direction winding, but cleaned object of the invention is not limited thereto.For example, such as Fig. 2 institute
Show, specified interval can also be separated in the shipping line 21 for constituting traveling unit multiple components 22 that hang down are arranged, hung down each
The lower end of lower component 22 is freely dismantledly installed by cleaned object 23.In addition to this, cleaned object of the invention
It to be advanced using traveling unit from a direction towards other direction, can be the plate object that cannot be wound.
Industrial applicibility
Electrolytic degreasing method according to the present invention, can effectively cleaning treatment be cleaned object surface, Neng Gouliang
The formation of the plating envelope then carried out well is applicable to carry out all products of ungrease treatment.Especially, it is applicable in
In the cleaning of the product surface wait electroplated layer to be formed.It, can be complicated from having by using electrolytic degreasing method of the invention
The surfaces of plating object object of fine bumps be effectively removed pollutant, prevent the oil of removal to be attached to cleaned pair again
As object surface on, be capable of forming the electroplated layer with better quality.
Furthermore electrolytic degreasing device of the invention does not need special construction, and device design is easy.Also, as this hair
Bright electrolytic degreasing device, for example, be also easy to be assembled into the tinuous productions such as plating line, vacuum evaporation line, it can be continuously
Cleaning treatment is cleaned object, realizes the manufacture of final products.
Claims (8)
1. a kind of electrolytic degreasing method, which is attached on the surface of cleaned object with electrolyzed alkaline water removal
The pollutants such as oil degreasing method, which is characterized in that
Cleaned object and anode electrode are configured in electrolyzed alkaline water and are powered, cathodic polarization is cleaned object, thus
The bubble hydrogen of diameter 20nm~10 μm is formed on the surface of cleaned object, keeps bubble hydrogen attached on the surface of cleaned object
It is close broken, the pollutant in the surface attachment of cleaned object is removed using the broken shock wave generated,
The anode electrode has electrode catalyst layer on its surface, which contains 10g/m2~20g/m2The oxygen of amount
Change iridium.
2. electrolytic degreasing method according to claim 1, wherein the electrolyzed alkaline water, which uses, contains potassium carbonate and hydrogen-oxygen
Change the aqueous solution of pH11~pH13 of potassium.
3. electrolytic degreasing method according to claim 1 or 2, wherein by using ultrasonic irradiation in electrolyzed alkaline water
The bubble hydrogen keeps the bubble hydrogen near the surface of the cleaned object broken.
4. electrolytic degreasing method according to any one of claims 1 to 3, wherein make the anode when being powered
The superoxide anion of electrode generation and the oil removed from the surface of the cleaned object are anti-in the electrolyzed alkaline water
It answers, so that the oil is resolved into carbon and carbon dioxide.
5. a kind of electrolytic degreasing device, which is the electrolytic degreasing described in any one of Claims 1 to 4
Method cleans the surface of cleaned object, which is characterized in that has
The degreasing bath of electrolyzed alkaline water is stored,
The anode electrode configured in the degreasing bath,
The cleaned object is configured in the electrolyzed alkaline water with the state impregnated, the cathodic polarization cleaned object
Object, to form the energization unit of the bubble hydrogen of diameter 20nm~10 μm, on the surface for being cleaned object
The bubble hydrogen fragmentation cell for keeping the bubble hydrogen near the surface of the cleaned object broken, and
The circulating filtration unit of the electrolyzed alkaline water,
The circulating filtration unit is filtered after the electrolyzed alkaline water that the degreasing bath overflows using filter element, is returned to the degreasing
The lower part of slot.
6. electrolytic degreasing device according to claim 5, wherein the anode electrode uses iridium oxide electrode.
7. electrolytic degreasing device according to claim 5 or 6, wherein the degreasing bath at least inner surface is super with that can reflect
The material of sound wave is formed, and the anode electrode has the interconnecting part of permeable ultrasonic wave.
8. the electrolytic degreasing device according to any one of claim 5~7, wherein the bubble hydrogen fragmentation cell is
Use ultrasonic irradiation in the ultrasonic irradiation unit of the bubble hydrogen of the Surface Creation of cleaned object in electrolyzed alkaline water.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-177770 | 2016-09-12 | ||
| JP2016177770A JP6479729B2 (en) | 2016-09-12 | 2016-09-12 | Electrolytic degreasing method and electrolytic degreasing apparatus |
| PCT/JP2017/030741 WO2018047654A1 (en) | 2016-09-12 | 2017-08-28 | Electrolytic degreasing method and electrolytic degreasing device |
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| Publication Number | Publication Date |
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| CN109415838A true CN109415838A (en) | 2019-03-01 |
| CN109415838B CN109415838B (en) | 2020-04-10 |
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| CN201780036041.8A Active CN109415838B (en) | 2016-09-12 | 2017-08-28 | Electrolytic degreasing method and electrolytic degreasing device |
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| Country | Link |
|---|---|
| JP (1) | JP6479729B2 (en) |
| CN (1) | CN109415838B (en) |
| MX (1) | MX370832B (en) |
| PH (1) | PH12018502603A1 (en) |
| TW (1) | TWI647346B (en) |
| WO (1) | WO2018047654A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110404871A (en) * | 2019-08-05 | 2019-11-05 | 宁波凯达橡塑工艺有限公司 | Automatically cleaning contact lens washer |
| CN110679824A (en) * | 2019-11-06 | 2020-01-14 | 西华大学 | Fresh noodle preservative and preparation method thereof |
| CN111297046A (en) * | 2019-11-02 | 2020-06-19 | 桐城市桃花制刷有限公司 | Preparation method of paint brush |
| CN112553680A (en) * | 2020-11-06 | 2021-03-26 | 福耀汽车铝件(福建)有限公司 | Method for stripping electrophoretic coating on surface of hanger |
| CN113279044A (en) * | 2021-04-06 | 2021-08-20 | 重庆立道新材料科技有限公司 | Descaling device and descaling method |
| CN116371804A (en) * | 2023-04-07 | 2023-07-04 | 南通大学 | Silicon waste cleaning device and cleaning method |
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| CN109482560A (en) * | 2018-11-30 | 2019-03-19 | 江阴精力机械有限公司 | Automatic spray paint production line high-efficiency cleaning pretreatment unit and its pretreating process |
| TWI691358B (en) * | 2019-03-04 | 2020-04-21 | 日商長瀨過濾器股份有限公司 | Filter cleaning method and filter cleaning device |
| JP7406748B2 (en) | 2019-06-12 | 2023-12-28 | 国立大学法人九州工業大学 | chemical plating method |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2018047654A1 (en) | 2018-03-15 |
| MX370832B (en) | 2020-01-08 |
| JP6479729B2 (en) | 2019-03-06 |
| PH12018502603A1 (en) | 2019-10-21 |
| JP2018044189A (en) | 2018-03-22 |
| TW201812118A (en) | 2018-04-01 |
| TWI647346B (en) | 2019-01-11 |
| CN109415838B (en) | 2020-04-10 |
| MX2018014618A (en) | 2019-03-01 |
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