CN203307460U - Roller brush type micro-arc oxidation treatment device - Google Patents
Roller brush type micro-arc oxidation treatment device Download PDFInfo
- Publication number
- CN203307460U CN203307460U CN201320106203XU CN201320106203U CN203307460U CN 203307460 U CN203307460 U CN 203307460U CN 201320106203X U CN201320106203X U CN 201320106203XU CN 201320106203 U CN201320106203 U CN 201320106203U CN 203307460 U CN203307460 U CN 203307460U
- Authority
- CN
- China
- Prior art keywords
- arc oxidation
- roller brush
- brush type
- stainless steel
- steel cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model relates to a roller brush type micro-arc oxidation treatment device. The roller brush type micro-arc oxidation treatment device comprises a micro-arc oxidation power supply, an anode workpiece, a roller brush type cathode, a solution recovery device, a micro-arc oxidation electrolyte, an electrolyte box, a submersible pump and a circulation cooling water tank, wherein the roller brush type cathode comprises a stainless steel cylinder, a rubber cotton sleeve, a conductive part, a drainage part and a plastic handle. The roller brush type cathode rolls back and forth on the surface of the anode workpiece, so that the local-to-global micro-arc oxidation treatment of the surface of the workpiece is realized. The roller brush type micro-arc oxidation treatment device has the characteristics of simple structure, portability, flexibility in operation and the like; when the device is adopted for micro-arc oxidation treatment, the micro-arc oxidation treatment of the surface of a large-size and large-area workpiece or equipment difficult to disassemble is easily realized in a continuous manner, a local damaged region is quickly repaired, resources can be saved, the cost can be reduced, and the efficiency can be improved. The roller brush type micro-arc oxidation treatment device is particularly applicable to the micro-arc oxidation treatment of a workpiece made of magnesium, aluminum, titanium and alloys thereof.
Description
Technical field
The utility model relates to micro-arc oxidization surface processing method and device, specifically a kind of differential arc oxidation treatment method for surface of large-size workpiece and realize the mancarried device of the method.
Background technology
Differential arc oxidation is a kind of process for treating surface at the non-ferrous metal surface in situ such as Al, Mg, Ti growth ceramic layer, it has broken through the restriction of conventional anodization technical work voltage, high voltage discharge field is guided to by the faraday district in work area, utilize the moment high temperature sintering effect of differential of the arc district directly at metallic surface growth in situ ceramic membrane.With the common anode oxidation technology, compare, differential arc oxidization technique, introduce chemical reaction mechanism to plasma body.Under the intervention effect of plasma body, having strong energy discharges, present stronger arc discharge phenomenon, differential arc oxidation utilizes plasma body arc light discharge process to strengthen the electrochemical oxidation reactions occurred at the anode specimen surface just, impelling reaction to generate direction to product carries out, simultaneously by the rapid melting of the product of chemical reaction, solidify and form the hard ceramic layer, thereby the wear resisting property of ceramic layer is significantly improved, and obviously is better than hard anodized film.Micro-arc oxidation process is simple, processing efficiency is high, cost is low, pollution-free, the oxide film generated has even compact, high, wear-resisting, anti-corrosion, high temperature resistant with substrate combinating strength, has huge application prospect in the industries such as space flight, aviation, automobile, electronics and machinery.
At present, the conventional processing pattern of differential arc oxidation is immerseable, its elementary operation is: by workpiece with immerse simultaneously in electrolytic solution to electrode, wherein pending workpiece is connected with positive source, electrode is connected with power cathode, control voltage or electric current and other processing parameter, carry out the surface ceramic deposition processing.Above-mentioned immerseable tupe is little for volume, the differential arc oxidation of the workpiece of complex geometry is processed for especially mass processing, not only feasible, and efficient.But when the main equipment that runs into the huge workpiece of volume or surface-area and be difficult to dismantle, immerseable is processed will run into a lot of problems.Such as, the volume of cell body is large not, because workpiece is bulky, the volume of cell body is required inevitable very large, and that brings thus increases such as the cell body material usage, and the requirement of its mechanical property is improved etc. to series of problems; In addition, when large-size workpiece is processed, because working current is larger, certainly lead to a large amount of heats, must be equipped with huge cooling system the temperature of electrolytic solution is controlled, simultaneously, because electric current is too large, also increased and be equipped with electric requirement, these have all increased difficulty and the cost of differential arc oxidization technique, thereby have restricted the realization that differential arc oxidation is processed the big area workpiece.
Unit surface differential arc oxidation power consumption is too large, can't realize the differential arc oxidation of large-size workpiece is processed, and this is because the large electric current and the high-voltage natural characteristics that maintain the micro-arc discharge needs determine.For this problem, a lot of scholars have carried out large quantity research, except the increase of passing through power or the output mode change of routine, the optimization of the aspects such as electrical parameter or solution system.Also have the scholar to look for another way, adopted unconventional differential arc oxidation method, namely not pending whole workpiece is immersed in treatment solution, but the regional area of pending workpiece is contacted with electrolytic solution, thereby realize that workpiece is from part to whole processing.As application number 201020102896, name is called the local electric field controlled microarc oxidation equipment provided patent with swap cathode, swap cathode is fixed in the swap cathode seat, the opening of swap cathode seat is by sucker and pending Work piece sealing, fixing, the partition wall of swap cathode separates fluid inlet and liquid outlet, force the gap of electrolyte stream through negative electrode upper surface and workpiece, the negative electrode upper surface treats that with workpiece the differential arc oxidation face is parallel, and using the big area workpiece surface as the electrolyzer inwall realize workpiece surface local or by part to whole differential arc oxidation.With sucker absorption workpiece, though convenient than cured binders, along with the carrying out of differential arc oxidation reaction, workpiece surface will produce amount of heat, circulation by electrolytic solution can be taken away the part heat, and the increase of electrolyte flow rate and install self expanded by heating will be difficult to guarantee negative electrode absorption firmly; And, in the mode of this fixed point differential arc oxidation, will increase operation, can't realize continuous processing, production efficiency is low.
The utility model content
The purpose of this utility model is the defect for existing immerseable differential arc oxidation tupe, and fixed point differential arc oxidation mode can't realize continuous processing, the deficiency that production efficiency is low, provide a kind of be used to the large volume that realizes described method, the roller brush type micro arc oxidation treatment device of large-area workpiece surface, thereby the differential arc oxidation processing of large volume or large-area workpiece surface is become flexibly with efficient.
The purpose of this utility model is achieved through the following technical solutions:
A kind of micro arc oxidation treatment device, it comprises mao power source, the pending anode workpiece of large size, roller brush type negative electrode, solution recovery device, differential arc oxidation electrolytic solution, electrolytic solution case, submersible pump and circulating cooling tank; Described roller brush type negative electrode comprises stainless steel cylinder, collodion cover, current-carrying part, drain part and plastic handle; Described stainless steel cylinder is hollow cylinder, the hollow cylinder side has equidistant through hole, facilitate the transmission of electrolytic solution, hollow cylinder both ends of the surface center drilling, and have aperture around the end of hollow cylinder centre hole, so that drain part and current-carrying part combine and are separately fixed on two end faces of stainless steel cylinder by screw bolt and nut; Described collodion cover parcel stainless steel cylinder, play and store and the effect of transmission electrolytic solution, conducting anode and cathode, the carrying out of assurance differential arc oxidation reaction; Described current-carrying part comprises conducting slip ring, and an end face of conducting slip ring flange section and stainless steel cylinder is bolted; Described drain partly comprises catheter, spot contact bearing and permanent seat, catheter penetrates the spot contact bearing inner ring, transition fit between catheter and spot contact bearing inner ring, with epoxy resin, spot contact bearing is anchored in the round pool of permanent seat again, permanent seat is fixed on the other end of stainless steel cylinder by bolts and nuts; Described plastic handle comprises telescoping handle, support, bolt and eyenut, and described support is by the catheter with fixing conducting pulley and drain part of being connected of bolt and eyenut.
Further optimize, described stainless steel cylinder has the through hole of 3 row's marshallings on it, is distributed in the stainless steel cylinder sides.Described stainless steel cylinder material is 202 stainless steels or 304 stainless steels.
Further optimize, described collodion cover is polyvinyl alcohol (PVA) collodion, the polyvinyl alcohol collodion thickness that is wrapped in the stainless steel cylinder sides is 1 ~ 4cm, the polyvinyl alcohol collodion thickness of parcel stainless steel cylinder end face is 0.2 ~ 0.5cm, and the polyvinyl alcohol collodion on both ends of the surface has through hole, be convenient to the collodion cover and be inserted in the stainless steel cylinder.
Further optimize, described catheter is stainless steel tube or plastic conduit, and catheter one end stretches in the stainless steel cylinder, and the other end penetrates eyenut, and bolt screws in eyenut, and compresses catheter.
Further optimize, described permanent seat is made by insulating material, and permanent seat is that discoid ，Qi center has round pool, and for fixing spot contact bearing, the perforate of round pool bottom center, be convenient to catheter and stretch in the stainless steel cylinder; Round pool has through hole on edge, in order to by the combination of bolts and nuts, permanent seat is fixed on stainless steel cylinder end face.
Further optimize, described roller brush type negative electrode is the to-and-fro movement by people's manual manipulation or connection for transmission winding machine roller brush type negative electrode, and roller brush type negative electrode rotating speed is 40 ~ 70r/min.
The utility model is by the roller brush type negative electrode of size less, electric field is concentrated on to the regional area of large-area workpiece surface, by opening foraminate stainless steel cylinder and wrapping up the collodion cover on it, realize storage and the transmission of electrolytic solution, guarantee the carrying out of differential arc oxidation reaction.By adjusting the thickness of collodion cover, realize the control to cathode and anode spacing simultaneously, by the back and forth round brush of negative electrode on the anode workpiece surface, realize workpiece by part to whole processing.Solution recovery device reclaims unnecessary electrolytic solution, and electrolytic solution flows back to the electrolytic solution case through conduit, after cooling trough is further cooling, and the circulation of elecrolyte utilization.With prior art, compare with device, the beneficial effects of the utility model show following four aspects:
(1) equipment is simple, portable, easy to operate.Only need can make the stainless steel cylinder at stainless pipe mouth soldering stainless steel flange plate, and the combination of bolts and nuts is all adopted in being connected and fixed of roller brush type negative electrode remaining component, without additional processing; The PVA collodion cover good elasticity of dependence self and toughness can be wrapped the stainless steel cylinder; Roller brush type negative electrode size and Roller brush sizableness for paint roller, have portability, and easy to use.
(2) energy-saving and cost-reducing.Utilize method of the present utility model and device, can realize the differential arc oxidation of big area workpiece is processed and outfield big area component partial reparation; Solution recovery device reclaims unnecessary electrolytic solution, flows back to electrolyzer by conduit, realizes the recycle of electrolytic solution; The consumption of the resource such as electric energy, electrolytic solution and the cost of supply unit can significantly reduce.
(3) flexibly, efficient.The Free-rolling of roller brush type negative electrode, be easy to realize continuous treatment, improved processing efficiency; The roller brush type negative electrode is combined with circulating cooling system, has guaranteed that electrolytic solution fully circulates and dispels the heat, and differential arc oxidation evenly, efficiently.Energy efficiency while processing by adjusting collodion cover thickness to control cathode and anode spacing, improving differential arc oxidation.
(4) applied widely.Without special electrolytic bath, be not subjected to the restriction of accessory size, the place that the roller brush type negative electrode can touch can be processed.Utilize method of the present utility model and device, the differential arc oxidation that can be used for large volume big area workpiece is processed, and is particularly suitable for the surface treatment of the workpiece of being manufactured by magnesium, aluminium, titanium and alloy thereof.
The accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of roller brush type micro arc oxidation treatment device in embodiment.
Fig. 2 is roller brush type cathode construction schematic diagram.
Fig. 3 a is the structural representation of roller brush type negative electrode stainless steel cylinder.
Fig. 3 b is the shaft section schematic diagram of the brush negative electrode stainless steel cylinder of cylinder and collodion cover.
Fig. 4 is roller brush type negative electrode plastic handle structural representation.
Embodiment
Below in conjunction with accompanying drawing and example, concrete enforcement of the present utility model is described further, but enforcement of the present utility model and protection domain are not limited to this.
As shown in Figure 1, 2, 3, the roller brush type micro arc oxidation treatment device comprises mao power source 1, the pending anode workpiece 4 of large size, roller brush type negative electrode 3, solution recovery device 5, differential arc oxidation electrolytic solution, electrolytic solution case 7, submersible pump 8 and circulating cooling tank 9; Described roller brush type negative electrode 3 comprises stainless steel cylinder 11, collodion cover 12, current-carrying part, drain part and plastic handle; Described stainless steel cylinder is hollow cylinder, the hollow cylinder side has equidistant through hole, facilitate the transmission of electrolytic solution, hollow cylinder both ends of the surface center drilling, and have aperture around the end of hollow cylinder centre hole, so that drain part and current-carrying part combine and are separately fixed on two end faces of stainless steel cylinder by screw bolt and nut; Described collodion cover parcel stainless steel cylinder, play and store and the effect of transmission electrolytic solution, conducting anode and cathode, the carrying out of assurance differential arc oxidation reaction; Described current-carrying part comprises conducting slip ring, and an end face of conducting slip ring flange section and stainless steel cylinder is bolted; Described drain partly comprises catheter, spot contact bearing and permanent seat, catheter penetrates the spot contact bearing inner ring, transition fit between catheter and spot contact bearing inner ring, with epoxy resin, spot contact bearing is anchored in the round pool of permanent seat again, permanent seat is fixed on the other end of stainless steel cylinder by bolts and nuts; Described plastic handle comprises telescoping handle, support, bolt and eyenut, and described support is by the catheter with fixing conducting pulley and drain part of being connected of bolt and eyenut.
As Fig. 3 a, Fig. 3 b, stainless steel cylinder 11 materials are 202 stainless steels, and external diameter is 5cm, and long is 7cm, the through hole of uniform 3 row's proper alignment on it, and aperture is 0.2cm.With the thick PVA collodion cover 12 parcel stainless steel cylinders 11 of 2.5cm, PVA collodion cover 12 both ends of the surface collodion thickness are 0.2cm, seal; With the combination of insulating bolt and nut, conducting slip ring 10 and drain part together are fixed on the stainless steel cylinder 11 that has wrapped up PVA collodion cover 12; Support 17 two ends on plastic handle are connected respectively the catheter 15 with fixing conducting slip ring 10 and drain part by bolt 18 and the combination of eyenut 19.
As Fig. 1, an end of a wire 2 is connected with workpiece 4 surface electrical, the positive terminal of another termination DC power supply 1 or the arbitrary port of other power supply.One end of another root wire 2 is electrically connected to the stainless steel cylinder 11 of roller brush type negative electrode 3 through conducting slip ring 10, the cathode terminal of another termination DC power supply 1 or the arbitrary port of other power supply.One section electrolytic solution pipeline 6 connects catheter 15 on submersible pump 8 and roller brush type negative electrode 3, and another section electrolytic solution pipeline 2 connects solution recovery device 5 and electrolytic solution case 7, by submersible pump 8, realizes the circulation of differential arc oxidation electrolytic solution.
During work, first drive submersible pump 8, electrolytic solution enters in stainless steel cylinder 11 by catheter 15, and outer PVA collodion plays storage and the effect of transmission electrolytic solution, turns on the power switch the parameters such as the voltage of adjustment mao power source 1, frequency.Driving handle 16, the spot contact bearing 14 of the translational motion of handle 16 by conducting slip ring 10 and drain part is converted into rotatablely moving of the stainless steel cylinder 11 that wrapped up the PVA collodion, realizes that roller brush type negative electrode 3 processes at the differential arc oxidation of the continuous roller brush type on workpiece 4 surfaces.
Embodiment 1
Take this device carries out the surface by micro-arc oxidation processing to an area as the magnesium alloy plate of 50cm * 50cm, adopt power frequency AC, workpiece connects one of them output terminal of AC power by wire, and the roller brush type negative electrode is connected via wires to another output terminal of power supply by conducting slip ring; Start submersible pump, electrolytic solution transmits by the electrolytic solution pipeline, through catheter, enter roller brush type negative electrode stainless steel cylinder, electrolytic solution is absorbed by PVA collodion cover by the through hole of stainless steel cylinder, its water-intake rate of PVA collodion can reach weight own more than 10 times, while not being subjected to external force, water-retentivity is fine, and during pressurized, moisture content is discharged rapidly.And, in motion is used, due to the strong adsorptive power of water, can form certain resistance, make the roller brush type negative electrode be difficult for skidding when the round brush workpiece.Promote plastic handle, the roller brush type negative electrode on workpiece during round brush electrolytic solution can discharge in time, PVA collodion cover plays good water suction, water conservation and feedwater effect; Start power frequency AC, frequency is made as 50Hz, operation roller brush type negative electrode, with the speed of 50r/min at workpiece surface round brush back and forth, in the differential arc oxidation treating processes, on roller brush type negative electrode working direction, electrolytic solution, in collodion cover and workpiece surface formed gap short stay, can be seen intensive tiny yellow spark.About 22min just can complete the differential arc oxidation on the whole surface of workpiece and process, and powered-down and submersible pump take out workpiece, and clean with clear water, at the visible evenly rete of workpiece surface.
Embodiment 2
With the thick PVA collodion cover parcel stainless steel cylinder of 1.5cm, collodion cover both ends of the surface collodion thickness is 0.2cm, the other the same as in Example 1.Effect is with embodiment 1.
With the thick PVA collodion of 3.5cm cover parcel stainless steel cylinder, collodion cover both ends of the surface collodion thickness is 0.2cm, the roller brush type negative electrode with the speed of 40r/min in workpiece surface round brush back and forth, the other the same as in Example 1.Result is at the visible uniform and smooth rete of workpiece surface.
Claims (2)
1. the roller brush type micro arc oxidation treatment device, is characterized in that comprising mao power source, the pending anode workpiece of large size, roller brush type negative electrode, solution recovery device, differential arc oxidation electrolytic solution, electrolytic solution case, submersible pump and circulating cooling tank; Described roller brush type negative electrode comprises stainless steel cylinder, collodion cover, current-carrying part, drain part and plastic handle; Described stainless steel cylinder is hollow cylinder, the hollow cylinder side has equidistant through hole, facilitate the transmission of electrolytic solution, hollow cylinder both ends of the surface center drilling, and have aperture around the end of hollow cylinder centre hole, so that drain part and current-carrying part combine and are separately fixed on two end faces of stainless steel cylinder by screw bolt and nut; Described collodion cover parcel stainless steel cylinder, play and store and the effect of transmission electrolytic solution, conducting anode and cathode, the carrying out of assurance differential arc oxidation reaction; Described current-carrying part comprises conducting slip ring, and an end face of conducting slip ring flange section and stainless steel cylinder is bolted; Described drain partly comprises catheter, spot contact bearing and permanent seat, catheter penetrates the spot contact bearing inner ring, transition fit between catheter and spot contact bearing inner ring, with epoxy resin, spot contact bearing is anchored in the round pool of permanent seat again, permanent seat is fixed on the other end of stainless steel cylinder by bolts and nuts; Described plastic handle comprises telescoping handle, support, bolt and eyenut, and described support is by the catheter with fixing conducting pulley and drain part of being connected of bolt and eyenut.
2. roller brush type micro arc oxidation treatment device according to claim 1, is characterized in that described stainless steel cylinder has the through hole of 3 row's marshallings on it, is distributed in the stainless steel cylinder sides.
3. roller brush type micro arc oxidation treatment device according to claim 1, it is characterized in that described collodion cover is the polyvinyl alcohol collodion, the polyvinyl alcohol collodion thickness that is wrapped in the stainless steel cylinder sides is 1 ~ 4cm, the polyvinyl alcohol collodion thickness of parcel stainless steel cylinder end face is 0.2 ~ 0.5cm, and the polyvinyl alcohol collodion on both ends of the surface has through hole, be convenient to the collodion cover and be inserted in the stainless steel cylinder.
4. roller brush type micro arc oxidation treatment device according to claim 1, it is characterized in that described catheter is stainless steel tube or plastic conduit, catheter one end stretches in the stainless steel cylinder, and the other end penetrates eyenut, bolt screws in eyenut, and compresses catheter.
5. roller brush type micro arc oxidation treatment device according to claim 1, is characterized in that described permanent seat made by insulating material, and permanent seat is discoid, its center has round pool, be used for fixedly spot contact bearing, the perforate of round pool bottom center, be convenient to catheter and stretch in the stainless steel cylinder; Round pool has through hole on edge, in order to by the combination of bolts and nuts, permanent seat is fixed on stainless steel cylinder end face.
6. roller brush type micro arc oxidation treatment device according to claim 1, is characterized in that described roller brush type negative electrode is the to-and-fro movement by people's manual manipulation or connection for transmission winding machine roller brush type negative electrode, and roller brush type negative electrode rotating speed is 40 ~ 70r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320106203XU CN203307460U (en) | 2013-03-08 | 2013-03-08 | Roller brush type micro-arc oxidation treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320106203XU CN203307460U (en) | 2013-03-08 | 2013-03-08 | Roller brush type micro-arc oxidation treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307460U true CN203307460U (en) | 2013-11-27 |
Family
ID=49613680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320106203XU Expired - Fee Related CN203307460U (en) | 2013-03-08 | 2013-03-08 | Roller brush type micro-arc oxidation treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203307460U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184498A (en) * | 2013-03-08 | 2013-07-03 | 华南理工大学 | Rolling brush type micro-arc oxidation processing method and device |
| CN104264200A (en) * | 2014-10-29 | 2015-01-07 | 中国人民解放军装甲兵工程学院 | Micro-arc oxidation treatment device and method |
| CN109082693A (en) * | 2017-06-13 | 2018-12-25 | 昆山汉鼎精密金属有限公司 | Fountain differential arc oxidation method and device |
| CN110904488A (en) * | 2019-12-09 | 2020-03-24 | 湖南湘投金天科技集团有限责任公司 | Micro-arc oxidation method and titanium alloy structural part obtained by adopting same |
-
2013
- 2013-03-08 CN CN201320106203XU patent/CN203307460U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184498A (en) * | 2013-03-08 | 2013-07-03 | 华南理工大学 | Rolling brush type micro-arc oxidation processing method and device |
| CN103184498B (en) * | 2013-03-08 | 2015-08-26 | 华南理工大学 | Roller brush type differential arc oxidation treatment method and device |
| CN104264200A (en) * | 2014-10-29 | 2015-01-07 | 中国人民解放军装甲兵工程学院 | Micro-arc oxidation treatment device and method |
| CN109082693A (en) * | 2017-06-13 | 2018-12-25 | 昆山汉鼎精密金属有限公司 | Fountain differential arc oxidation method and device |
| CN110904488A (en) * | 2019-12-09 | 2020-03-24 | 湖南湘投金天科技集团有限责任公司 | Micro-arc oxidation method and titanium alloy structural part obtained by adopting same |
| CN110904488B (en) * | 2019-12-09 | 2021-08-10 | 湖南湘投金天科技集团有限责任公司 | Micro-arc oxidation method and titanium alloy structural part obtained by adopting same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103184498B (en) | Roller brush type differential arc oxidation treatment method and device | |
| CN203307460U (en) | Roller brush type micro-arc oxidation treatment device | |
| CN101245485A (en) | Surface treating method for magnesium lithium alloy | |
| CN102268708B (en) | Microarc oxidation processing method and device | |
| CN105036508A (en) | Method and device for solidifying sludge by vacuum electroosmosis combined dynamic load | |
| CN201809465U (en) | Micro-arc oxidation device for local treatment on outer surface of ultra-large workpiece | |
| CN107022779B (en) | The method and device thereof of the cathode plasma electrolytic preparation coating of tungsten wire auxiliary | |
| CN101935819B (en) | Preparation method of titanium dioxide film grown in situ on surface of titanium or titanium alloy material | |
| CN105967282B (en) | A kind of electrocatalysis oxidation apparatus run under the conditions of extra-high voltage and process | |
| CN203284488U (en) | Aluminium alloy anodic oxidation device | |
| CN204752504U (en) | Device for solidifying sludge by vacuum electroosmosis combined power load | |
| CN217479558U (en) | Steam plasma hydrogen production system | |
| CN203429271U (en) | Ceramic treatment device for surface of aluminum-silicon alloy | |
| CN105645531A (en) | Rotating conical electric flocculation device | |
| CN201915159U (en) | ZA43 high alimunium-zinc base alloy micro-arc oxidation device | |
| CN112095131B (en) | Tool equipment and method for preparing closed cylindrical inner cavity ceramic layer | |
| CN211078643U (en) | Copper foil washing water circulation system | |
| CN211004703U (en) | Advanced treatment device for solar electrocatalytic oxidation sewage | |
| CN203402921U (en) | Plasma-arc gas production equipment | |
| CN206477045U (en) | A kind of aluminium alloy extrusions electrophoretic painting groove | |
| CN212476217U (en) | High-efficient sewage electrolysis reactor | |
| CN206512045U (en) | Coating wastewater processing unit | |
| CN213977078U (en) | Electrolytic nano ion water generating device | |
| CN116397292B (en) | Method and device for preparing coating on inner wall of metal pipeline | |
| CN220005942U (en) | Composite material manufacturing equipment for copper-aluminum bimetal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20160308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |