CN105463550A - Anodic oxidation device - Google Patents
Anodic oxidation device Download PDFInfo
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- CN105463550A CN105463550A CN201510995408.1A CN201510995408A CN105463550A CN 105463550 A CN105463550 A CN 105463550A CN 201510995408 A CN201510995408 A CN 201510995408A CN 105463550 A CN105463550 A CN 105463550A
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- electrolyzer
- anodic oxidation
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- oxidation device
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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
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
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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
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/005—Apparatus specially adapted for electrolytic conversion coating
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- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
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- Organic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to the technical field of surface treatment, in particular to an anodic oxidation device. The anodic oxidation device comprises an electrolytic bath, a stirring part and a grabbing part. The electrolytic bath is used for containing an electrolyte solution, and the bottom of the electrolytic bath is provided with a first electrode; the stirring part is arranged in the electrolytic bath and used for stirring the electrolyte solution; the grabbing part comprises a mechanical arm used for being fixed to the outside and a mechanical jaw arranged at the end of the mechanical arm and provided with a second electrode; the mechanical arm is used for driving the mechanical jaw to be movably stored in the electrolytic bath during working. According to the anodic oxidation device, an electronic circuit is formed by the first electrode, the electrolyte solution and the second electrode; after the mechanical jaw grabs a workpiece to be oxidized, the workpiece to be oxidized is electrically connected with the second electrode, an electrochemical reaction occurs between the workpiece to be oxidized and the electrolyte solution under the action of electric current, and an oxidation film is formed on the surface of the workpiece to be oxidized. As all components in the electrolyte solution are uniformly mixed and the workpiece to be oxidized is grabbed in a mechanical mode, the efficiency of forming the oxidation film on the workpiece to be oxidized is improved.
Description
Technical field
The present invention relates to technical field of surface, particularly relate to anodic oxidation device.
Background technology
Aluminium alloy is a most widely used metalloid structured material in industry, widely applies in Aeronautics and Astronautics, automobile, machinofacture, boats and ships and chemical industry.Be that anode is placed in electrolyte solution with Al-alloy products, utilize electrolytic action, make its surface form the process of aluminum oxide film, be called the anodic oxidation treatment of aluminium alloy.Alloy product through anodic oxidation treatment is called aluminum alloy anode product.
At present, in anodised process, by controlling the temperature etc. of the concentration of the electrolytic solution in electrolyzer, oxidization time and electrochemical reaction, obtain the oxide film of even compact; But in traditional device, due to the uneven concentration of electrolytic solution, the reason such as the temperature of oxidization time and electrochemical reaction is restive, causes the efficiency of the anodic oxidation treatment of aluminum products lower, and then have impact on production efficiency.
Summary of the invention
Based on this, be necessary for the problems referred to above, a kind of high efficiency anodic oxidation device is provided.
A kind of anodic oxidation device, comprising:
Electrolyzer, described electrolyzer is used for splendid attire electrolytic solution, is provided with the first electrode bottom it;
Stirring parts, described stirring parts is arranged in described electrolyzer, for stirring described electrolytic solution;
Grippers, described grippers comprises for being fixed on outside mechanical arm and being arranged on the gripper with the second electrode of described mechanical arm end,
Described mechanical arm drives described gripper activity to be contained in described electrolyzer when being used for work.
Wherein in an embodiment, described electrolyzer is the rectangular parallelepiped of the hollow of a side opening.
Wherein in an embodiment, described electrolyzer is provided with installation position, and described stirring parts is arranged at described installation position.
Wherein in an embodiment, described installation position is arranged at the sidewall of described electrolyzer.
Wherein in an embodiment, described installation position is arranged at the middle part of the sidewall of described electrolyzer.
Wherein in an embodiment, installation position described in a pair is set.
Wherein in an embodiment, described electrolyzer is the right cylinder of the hollow of one end open.
Wherein in an embodiment, described electrolyzer is the square of the hollow of a side opening.
Wherein in an embodiment, described first electrode comprises negative plate.
Wherein in an embodiment, described second electrode comprises positive plate.
Above-mentioned anodic oxidation device, by the first above-mentioned electrode, between electrolytic solution and the second electrode, form electronic circuit, after gripper captures workpiece to be oxidized, workpiece to be oxidized and the second electrode are electrically connected, workpiece to be oxidized and electrolytic solution generation electrochemical reaction under the effect of electric current, workpiece surface to be oxidized forms oxide film.Because each component in electrolytic solution mixes, and mechanically capture workpiece to be oxidized, improve the efficiency that workpiece to be oxidized forms oxide film.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention anodic oxidation device;
Fig. 2 is the structural representation of one embodiment of the invention electrolyzer;
Fig. 3 is the syndeton schematic diagram of one embodiment of the invention stirring parts and electrolyzer;
Fig. 4 is the structural representation of one embodiment of the invention stirring parts;
Fig. 5 is the structure for amplifying schematic diagram of part A embodiment illustrated in fig. 4;
Fig. 6 is the structure for amplifying schematic diagram of part B embodiment illustrated in fig. 4;
Fig. 7 is one embodiment of the invention thermoswitch and the tester of liquid concentration position view at electrolyzer;
Fig. 8 is the position view of one embodiment of the invention second electrode at mechanical arm; And
Fig. 9 is the position view of one embodiment of the invention monitor at electrolyzer.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can be much different from alternate manner described here to implement, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public specific embodiment.
It should be noted that, when element is called as " being fixed on ", " being arranged at " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement just for illustrative purposes, do not represent it is unique embodiment.
Refer to Fig. 1, it is the structural representation of one embodiment of the invention anodic oxidation device 10, and anodic oxidation device 10 comprises: electrolyzer 110, stirring parts 120 and grippers 130.
Electrolyzer 110 is for splendid attire electrolytic solution.Composition graphs 2, the bottom of electrolyzer 110 is provided with the first electrode 111.Such as, the first electrode 111 connects the negative electrode of external dc power.In one embodiment, the first electrode 111 comprises negative plate.Negative plate is for connecting the negative electrode of external dc power.
Stirring parts 120 is arranged in electrolyzer 110, for stirring electrolytic solution, each component in electrolytic solution is mixed, to form the higher oxide film of compactness.
Grippers 130 comprises mechanical arm 131 and is arranged on the gripper 132 of mechanical arm 131 end, and when mechanical arm 131 works, driving mechanical pawl 132 activity is contained in electrolyzer 110.
Mechanical arm 131 is fixed on outside, and such as, mechanical arm 131 is fixed on lathe.Composition graphs 8, gripper 132 has the second electrode 133.Such as, the second electrode 133 connects the anode of external dc power.In one embodiment, the second electrode 133 comprises positive plate.Positive plate is for connecting the anode of external dc power.Such as, mechanical arm adopts existing techniques in realizing, repeats no more herein.The first above-mentioned electrode 111, between electrolytic solution and the second electrode 133, form turning circuit, after gripper 132 captures workpiece to be oxidized, workpiece to be oxidized and the second electrode 133 are electrically connected, workpiece to be oxidized and electrolytic solution generation electrochemical reaction under the effect of electric current, workpiece surface to be oxidized forms oxide film.
Be appreciated that because each component in electrolytic solution mixes, and mechanically capture workpiece to be oxidized, improve the efficiency that workpiece to be oxidized forms oxide film.
Refer to Fig. 2, electrolyzer 110 is the rectangular parallelepiped of the hollow of a side opening.Composition graphs 3, electrolyzer 110 is provided with installation position 112, and stirring parts 120 is arranged at installation position 112.Such as, installation position is arranged at the middle part of the sidewall of described electrolyzer.Such as, installation position described in a pair is set.Such as, installation position 112 is arranged at the sidewall of electrolyzer 110.For making stirring parts 120 have rotation space, installation position 112 is arranged on the region intermediate of the sidewall of electrolyzer 110.Such as, electrolyzer 110 is the right cylinder of the hollow of one end open.Such as, electrolyzer 110 is the square of the hollow of a side opening.
In order to weight reduction, such as, electrolyzer is provided with hollow aluminium alloy frame body, and is covered in the anti-corrosion layer of internal surface of hollow aluminium alloy frame body; Such as, anti-corrosion layer is plumbous or synthetic resins or rubber etc., and its thickness is 2 ~ 4 millimeters; Such design, greatly alleviates the weight of electrolyzer, improves its steadiness, also reduces cost.Preferably, the outside surface of hollow aluminium alloy frame body covers at least partly and arranges described anti-corrosion layer.Preferably, the outside of hollow aluminium alloy frame body is also provided with fixed sturcture, for fixedly mounting electrolyzer.
Electrolyzer 110 is for splendid attire electrolytic solution.In the present embodiment, as shown in Figure 2, electrolyzer 110 has accommodating cavity 113.In an oxidising process, accommodating cavity 113 contains electrolytic solution, and the first electrode 111 soaks in the electrolytic solution.In one embodiment, negative plate and positive plate all adopt graphite material to make.That is, the plate that graphite material makes negative plate and positive plate has the shape and structure of coupling, makes both mutually corresponding.
It is pointed out that the present embodiment is relative to traditional anode oxidation process, the second electrode 133 is set separately highlightedly, and the shape and structure of the second electrode 133 in plate.Preferably, the shape size of the second electrode 133 is identical with the shape size of workpiece to be oxidized, workpiece to be oxidized is made to fit in the second electrode 133, when the second electrode 133 is parallel with the first electrode 111, workpiece to be oxidized also with the first electrode 111 in parastate, make the surface of workpiece opposite first pole 111 to be oxidized form the oxide film of even compact.
In one embodiment, electrolyzer 110 is the rectangular parallelepiped of the hollow of a side opening, and has scale in the side wall markings of electrolyzer 110, and such as this scale direction is straight down, and such as, shown in this scale is volumetric values.
It is pointed out that the volumetric values indicated by this scale is corresponding adaptive according to the size of electrolyzer 110, that is, when the plane at liquid levels place is positioned at a certain scale place, namely this scale value reflects the size of current liquid volume.
In one embodiment, electrolytic solution be 55% ~ 70% sulphuric acid soln, massfraction be 5% ~ 10% phosphoric acid and massfraction be 2% oxalic acid mixing solutions.Corresponding, anodised condition is: voltage 10V, temperature 19 ~ 21 DEG C, time 20 ~ 40min.Already oxidised workpiece after anodic oxidation treatment is washed, after drying, obtain the already oxidised workpiece of surface evening light, and surface is without heterochromatic.
Preferably, electrolytic solution to be sulphuric acid soln, the massfraction of 65% be 8% phosphoric acid and massfraction be 2% oxalic acid mixing solutions.Corresponding, anodised condition is: voltage 10V, temperature 19 DEG C, time 25min.
In one embodiment, the sulphuric acid soln of electrolytic solution to be concentration be 180 ~ 240g/L.Corresponding, anodised condition is: voltage 10V, temperature 19 ~ 21 DEG C, time 20 ~ 40min.Already oxidised workpiece after anodic oxidation treatment is washed, after drying, obtain the already oxidised workpiece of surface evening light, and surface is without heterochromatic.
Preferably, the sulphuric acid soln of electrolytic solution to be concentration be 220g/L.Corresponding, anodised condition is: voltage 10V, temperature 21 DEG C, time 30min.Compare through being amplified to 100 times, the process workpiece obtained like this, surface finish, higher than currently available products, there is no rough position, and surface is without heterochromatic.
Because the particle radius in the various component of electrolytic solution there are differences each other, when causing mixing rear formation electrolytic solution, there is the phenomenon of precipitation in the meeting that particle radius is larger.For preventing the generation of this phenomenon, affecting the efficiency of anodic oxidation reactions, being stirred in real time by the electrolytic solution in stirring parts 120 pairs of electrolyzers 110, some components precipitate can be avoided on the one hand, each component in electrolytic solution can be made to mix on the other hand.
As shown in Figure 3, electrolyzer 110 is provided with motor 114.The rotor of motor 114 is connected with installation position 112.When being provided with stirring parts 120 in installation position 112, motor 114 works and namely drives stirring parts 120 to rotate, thus is stirred in real time by stirring parts 120 pairs of electrolytic solution.
Be appreciated that the rotating speed of stirring parts 120 should remain in rational scope, and, also should mate with the volume of electrolyzer 110, avoid spattering from electrolyzer 110 at rotation process electrolytic solution.Preferably, electrolyzer 110 is provided with rotational speed governor, and rotational speed governor is connected with motor 114.Rotational speed governor has input terminus, accepts user and inputs default tachometer value, when driving stirring parts 120 to rotate to make motor 114, maintains in this tachometer value.Such as, stirring parts has wavy cross-section, and below the middle part that is all positioned at electrolyzer, its two ends or middle part, and the maximum width of stirring parts is 4% ~ 12% of the electrolyzer degree of depth, and the maximum speed of revolution of stirring parts is less than 180rpm.
For ease of controlling the rotating speed of stirring parts 120 in real time, in an embodiment, rotational speed governor is provided with WiFi module.WiFi module is connected with outside terminating unit by WiFi agreement, such as, after the mobile phone of user is connected by WiFi agreement and WiFi module, real-time tachometer value is inputted to WiFi module by the application program of mobile phone, motor 114 is after receiving this real-time tachometer value, and real-time response adjusts rotating speed.
It is pointed out that outside terminating unit can also comprise the telepilot with WiFi host-host protocol or ZigBee transport protocol capabilities of flat board, computer, remote server and customization.
For ease of controlling the rotating speed of stirring parts 120 in real time, in an embodiment, rotational speed governor is provided with ZigBee module.ZigBee module is connected with outside terminating unit by Zigbee protocol, such as, after the mobile phone of user is connected by Zigbee protocol and ZigBee module, real-time tachometer value is inputted to ZigBee module by the application program of mobile phone, motor 114 is after receiving this real-time tachometer value, real-time response adjustment rotating speed, is adjusted in real time to make stirring parts 120.
Like this, by keeping stirring parts 120 in rational speed range, can avoid spattering from electrolyzer 110 at rotation process electrolytic solution.But in a whipping process, the reasonableness that stirring parts 120 constructs affects electrolytic solution whether to spatter important factor from electrolyzer 110.Therefore, as shown in Figure 4, in one embodiment, for making stirring parts 120 more gentle with the contact of electrolytic solution, stirring parts 120 is the rod of rounded, the overall undulate in cross section.
Be appreciated that stirring parts 120 should possess acid resistance, to avoid reacting with electrolytic solution.Such as, stirring parts outer setting has acid-resistant layer; In one embodiment, stirring parts 120 adopts graphite material to make.In one embodiment, stirring parts 120 adopts tetrafluoroethylene to make.
Due to the rectangular parallelepiped that the electrolyzer 110 in the present embodiment is the hollow of a side opening.As shown in Figure 3, the length of the length coupling electrolyzer 110 of stirring parts 120, and be installed on the central region of electrolyzer 110.In the present embodiment, the two ends of stirring parts 120 are provided with outside screw, are screwed onto respectively in installation position 112.
The object of the electrochemical reaction of the present embodiment is: generate oxide film at the default surface oxidation of workpiece to be oxidized, oxide film is solid, and therefore in reaction process, the content of oxygen element can reduce gradually.For supplementing the oxygen element in electrolytic solution in time, improve oxidation efficiency, as shown in Figure 4 and Figure 5, stirring parts 120 offers air guide channel 121.Air guide channel 121 extends along the bending of stirring parts 120 and extending direction.
In one embodiment, installation position 112 offers the air guide port be communicated with the gas blower of outside, and air guide channel 121 is communicated with air guide port.During gas blower work, send into extraneous air toward air guide port, extraneous air enters air guide channel 121.For importing in electrolytic solution by extraneous air in time, think electrolytic solution delivery of supplemental oxygen element, as shown in Figure 4 and Figure 6, stirring parts 120 is provided with some escape pipes 122, escape pipe 122 is communicated with air guide channel 121, and each escape pipe 122 offers some air outlets 123.
Like this, outside air, via after air guide channel 121, is assigned on each escape pipe 122, and is distributed in electrolytic solution under the effect of some air outlets 123.Electrolytic solution is the chemical reaction delivery of supplemental oxygen element of self after absorbing the oxygen of the few part in air, thus improves oxidation efficiency.
It should be noted that, some escape pipes 122 shown in Fig. 4 are only distributed on the side of stirring parts 120, it is the function understanding escape pipe 122 for the ease of user, during specific to production, the position of escape pipe 122 can carry out converting according to the understanding of reality, such as concentrate to a certain region delivery of supplemental oxygen element time, each escape pipe is obliquely installed, to make all air outlets all uniformly towards this region.
Refer to Fig. 7, in one embodiment, electrolyzer 110 is provided with thermoswitch 115 and tester of liquid concentration 116.Thermoswitch 115 and tester of liquid concentration 116 are all connected with outside by pedestal 117.Such as, pedestal 117 is arranged on the bottom land of electrolyzer 110, and and for example, pedestal 117 is arranged near the first electrode 111.Thermoswitch 115 for absorbing the heat in electrolyzer 110, to reduce the temperature in electrolyzer 110.Preferably, thermoswitch 115 comprises frozen water equipment.
Electrolytic solution in use for some time, such as, because chemical reaction needs to consume a certain composition in electrolytic solution, oxygen element, for maintaining the concentration of electrolytic solution, electrolytic solution in electrolyzer 110 is remained within the scope of default concentration value, is necessary the concentration value obtaining electrolytic solution in time accurately.Such as, tester of liquid concentration 116 is arranged on the bottom land of electrolyzer 110, and and for example, tester of liquid concentration 116 is arranged near the first electrode 111.So, the concentration of the detection electrolytic solution utilizing tester of liquid concentration real-time, to obtain the concentration value of electrolytic solution in time accurately, improves electrolytic efficiency.
For obtaining the good oxide film of compactness, such as, anodic oxygen makeup comprises spectral interference film thickness gauge.Such as, spectral interference film thickness gauge is arranged at the bottom land of electrolyzer 110.Such as, two of spectral interference film thickness gauge restraints second electrode 133 of incident lights towards grippers 130, and two bundle reflected light after peroxide film are split, interference film thickness gauge receives, due to the existence of thickness, two bundle reflected light and two are restrainted between incident light exists phase differential, therefore, utilize fourier transform algorithm or characteristic curve fitting algorithm, namely can be regarded as to obtain the thickness of oxide film.
It is to be noted, spectral interference film thickness gauge is the principle utilizing white light interferometric method, namely record the reflectance data of different wave length with a broadband light source, because reflectivity n and k changes with the difference of film, carry out curve fitting according to this characteristic thus try to achieve thickness.The relevant parameter of different kind of material is described by different models, thus ensure that the accuracy of different kind of material film thickness measuring.
Refer to Fig. 9, in one embodiment, anodic oxidation device comprises monitor 140.Such as, monitor 140 is arranged on electrolyzer 110, for monitoring gripper 132 in the position of electrolyzer 110.Such as, the probe of monitor 140 is arranged in electrolyzer 110, for obtaining the distance between gripper 132 and the liquid level of electrolytic solution.Such as, monitor 140 is infrared range-measurement system.
Such as, electrolyzer 110 is provided with connection bit 118, and monitor 140 is arranged in connection bit 118.Such as, connection bit 118 is arranged at the notch peripheral region of electrolyzer 110.
Such as, monitor 140 is removable installed in connection bit 118.Such as, connection bit 118 is the female blind hole of tool.Such as, monitor 140 is spirally connected by screw and connection bit 118.Such as, connection bit 118 is jack.Such as, monitor 140 is by pin and connection bit 118 grafting.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification sheets is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an anodic oxidation device, is characterized in that, comprising:
Electrolyzer, described electrolyzer is used for splendid attire electrolytic solution, is provided with the first electrode bottom it;
Stirring parts, described stirring parts is arranged in described electrolyzer, for stirring described electrolytic solution;
Grippers, described grippers comprises for being fixed on outside mechanical arm and being arranged on the gripper with the second electrode of described mechanical arm end,
Described mechanical arm drives described gripper activity to be contained in described electrolyzer when being used for work.
2. anodic oxidation device according to claim 1, is characterized in that, described electrolyzer is the rectangular parallelepiped of the hollow of a side opening.
3. anodic oxidation device according to claim 2, is characterized in that, described electrolyzer is provided with installation position, and described stirring parts is arranged at described installation position.
4. anodic oxidation device according to claim 3, is characterized in that, described installation position is arranged at the sidewall of described electrolyzer.
5. anodic oxidation device according to claim 4, is characterized in that, described installation position is arranged at the middle part of the sidewall of described electrolyzer.
6. anodic oxidation device according to claim 5, is characterized in that, arranges installation position described in a pair.
7. anodic oxidation device according to claim 1, is characterized in that, described electrolyzer is the right cylinder of the hollow of one end open.
8. anodic oxidation device according to claim 1, is characterized in that, described electrolyzer is the square of the hollow of a side opening.
9. anodic oxidation device according to claim 1, is characterized in that, described first electrode comprises negative plate.
10. anodic oxidation device according to claim 1, is characterized in that, described second electrode comprises positive plate.
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Cited By (5)
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| CN106086972A (en) * | 2016-08-10 | 2016-11-09 | 松阳县恒亮不锈钢制品有限公司 | A kind of open-type steel bowl automatization electroplanting device in batches |
| CN108624937A (en) * | 2018-05-11 | 2018-10-09 | 王康 | A kind of magnesium alloy workpiece anode oxidation method |
| CN108796576A (en) * | 2018-09-03 | 2018-11-13 | 东莞市旺鑫精密工业有限公司 | A kind of anode processing technique and its oxidation unit for pack alloy |
| CN109112600A (en) * | 2018-11-06 | 2019-01-01 | 广东江晟铝业有限公司 | Can automatic electrolyte oxidation aluminium device |
| CN110372258A (en) * | 2019-07-08 | 2019-10-25 | 杭州三耐环保科技股份有限公司 | A kind of stirred tank and preparation method thereof |
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| CN110372258A (en) * | 2019-07-08 | 2019-10-25 | 杭州三耐环保科技股份有限公司 | A kind of stirred tank and preparation method thereof |
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|---|---|
| CN105463550B (en) | 2018-02-06 |
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