CN217973447U - Energy-saving double-flying-target oxidation tank suitable for micro-arc oxidation process - Google Patents

Abstract

The utility model relates to a metal material surface treatment equipment technical field, concretely relates to energy-saving pair flies target oxidation groove suitable for micro arc oxidation technology. The inside of cell body has the cavity that holds electrolyte in this two target oxidation tanks that fly. An anode assembly spans over the cavity. And a support for supporting the end part of the anode assembly is arranged on the edge of the side wall of the tank body. The fixed end of the clamp is connected with the anode assembly. The pressure head of the clamp and the side wall of the anode assembly form rapid and firm clamping on the workpiece. The output end of the driving device in the movable cathode assembly is connected with the transmission rod and drives the transmission rod to rotate. The driving device in the movable cathode assembly drives the transmission rod to rotate forwards or backwards, the distance between the cathode plate and the anode workpiece product is changed in different stages of micro-arc oxidation reaction, the uniformity and the density of an oxidation coating on the surface of the product are improved, the comprehensive energy consumption is reduced, and the large-scale industrial production application of the micro-arc oxidation process is realized.

Description

Energy-saving double-flying-target oxidation tank suitable for micro-arc oxidation process

Technical Field

The utility model relates to a metal material surface treatment equipment technical field, concretely relates to energy-saving pair flies target oxidation groove suitable for micro arc oxidation technology.

Background

The micro-arc oxidation process is a simple, efficient and environment-friendly surface treatment technology and is widely applied to the fields of automobiles, aerospace, medical appliances and the like. The micro-arc oxidation process utilizes instantaneous high temperature and high pressure action generated by arc discharge on the surfaces of nonferrous metals such as magnesium, aluminum, titanium and the like and alloys thereof to grow a ceramic film layer mainly comprising a matrix metal oxide in situ by the combination of electrolyte and corresponding parameters. Wherein, the micro-arc oxidation process can be divided into 4 stages: anodic oxidation stage, spark discharge stage, micro-arc oxidation stage and arc blowout stage. In the stage of micro-arc oxidation, tiny and dense arc spots on the surface of a sample gradually become large and sparse along with the extension of time, and meanwhile, the voltage slowly rises, and the current gradually falls and gradually falls to zero. The stage with dense arc points is favorable for the growth of an oxide film, and most of the film layer is generated at the stage; in the stage where the arc points are sparse, although the contribution to the growth of the oxide film is small, the density of the oxide film can be increased and the surface roughness of the oxide film can be reduced.

Through retrieval, chinese patent document CN108034977A discloses a double-flying-target oxidation tank suitable for a micro-arc oxidation process. The oxidation tank comprises an oxidation tank body. Two side cathodes fixed by the high-conductivity red copper bar are distributed in the oxidation tank body along the length direction, and a middle cathode fixed by the high-conductivity red copper bar is arranged in the middle of the oxidation tank body. An overflow groove is arranged on one side of the oxidation groove body along the width direction. Four groups of copper seats are symmetrically arranged along the width directions of two sides of the opening end plane of the oxidation tank body. The two symmetrically arranged copper seats are respectively connected with a side cathode.

Although the double-flying-target oxidation tank can be suitable for micro-arc oxidation process development, small-batch pilot-scale test and large-batch industrial production of various aluminum, magnesium and titanium metals and alloys thereof, in industrial application, the thickness and the density of an oxide film layer formed on the surface of a workpiece by the double-flying-target oxidation tank through a micro-arc oxidation process are still difficult to meet the requirements. Meanwhile, the low treatment efficiency and the high power consumption are key problems for restricting the implementation and the industrial application of the micro-arc oxidation technology.

In summary, in the process of performing the micro-arc oxidation process, how to design an oxidation tank to improve the treatment efficiency of the micro-arc oxidation process, improve the uniformity and density of the oxidized coating on the surface of the product, reduce the energy consumption of the surface treatment, and implement the large-scale industrial production application of the micro-arc oxidation process becomes a technical problem to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to provide an oxidation groove for implementing the in-process of micro arc oxidation technology for improve the treatment effeciency of micro arc oxidation technology, promote product surface oxidation coating's homogeneity and density, reduce surface treatment's energy consumption, realize that the large-scale industrial production of micro arc oxidation technology is used.

In order to achieve the above purpose, the utility model adopts the following scheme: the energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process comprises a tank body, an anode assembly, a movable cathode assembly and a clamp for clamping a workpiece;

the electrolytic bath is characterized in that a cavity for containing electrolyte is formed in the bath body, the anode assembly stretches over the cavity, a support for supporting the end part of the anode assembly is arranged on the side wall of the bath body, the fixed end of the clamp is connected with the anode assembly, and a pressure head of the clamp and the side wall of the anode assembly clamp a workpiece;

portable negative pole subassembly includes drive arrangement, first negative plate, second negative plate and transfer line, drive arrangement links to each other with the top of cell body, drive arrangement's output links to each other with the transfer line, the direction that transfer line perpendicular to anode assembly spanes the cavity is arranged, first negative plate and second negative plate all are on a parallel with anode assembly and arrange, anode assembly is located between first negative plate and the second negative plate, first negative plate and second negative plate all link to each other with the transfer line.

As preferred, the both ends of positive pole subassembly all link to each other with the support through the connecting seat, are provided with buffer spacer between support and the connecting seat, and buffer spacer includes upper padding plate, lower bolster and intermediate layer, and upper padding plate and lower bolster are connected to the intermediate layer, and the upper padding plate links to each other with the bottom of connecting seat, and the lower bolster links to each other with the top of support. So set up, further promoted the electrically conductive contact stability between anode assembly and the connecting seat, be favorable to avoiding plasma power to produce striking sparks, the electric shock problem among the output process.

Preferably, the anode assembly comprises end conductive strips and a central conductive strip, a pair of the end conductive strips being connected by the central conductive strip, the end conductive strips having V-shaped contacts disposed thereon, the V-shaped contacts being embedded in the connector holder, and the surfaces of the end conductive strips and the surfaces of the central conductive strips being coated with a graphite coating. So set up, the tip conducting strip forms the sectional type anode assembly through middle conducting strip connection, be convenient for according to the size of a dimension of cell body, the anode assembly of suitable length of design, the V-arrangement connects the corrosion resisting ability that is used for improving the conductive contact stability between anode assembly and the connecting seat, the surface of tip conducting strip and the graphite coating of the surface coating of middle conducting strip have further improved the anode assembly in acid-base service environment, and reduced contact resistance and the probability of ablating of striking sparks by a wide margin, the contact conducting ability with concrete product hanger has been improved, and simultaneously, the surface heat-sinking capability of anode assembly has been strengthened, be favorable to the dispersion because of the heat that the current skin effect formed under the low and medium frequency pulse electric field mode.

Preferably, the clamp is a swinging clamp which comprises a pressure head, a pressure arm, a mounting seat and a locking arm, the mounting seat is connected with the anode assembly, one end of the pressure arm is connected with the pressure head, the other end of the pressure arm is hinged with the mounting seat, and the locking arm is hinged with the mounting seat. So set up, be favorable to realizing the quick clamping of product, and then improved production efficiency, in addition, the pressure head that the swing was pressed from both sides has increased electrically conductive area of contact, has avoided the hanging point to strike sparks, has reduced the prosthetic frequency of hanger, has improved production stability and yields.

Preferably, a pair of anode assemblies is spanned above the cavity, and each anode assembly is correspondingly provided with a group of movable cathode assemblies. So set up, formed four cathode structure, shortened the distance between negative plate and the positive pole work piece product, be favorable to the quick film forming of reaction initial stage to can strengthen the homogeneity of reaction later stage product surface oxidation coating, reduced the production energy consumption.

Preferably, the top of the trough body is provided with a hanging rack, and the hanging rack is connected with the side wall of the trough body. So set up, the stores pylon is used for linking to each other with outside lifting device, has promoted the convenience that cell body hoist and mount were transported.

Preferably, the outer wall of the groove body is provided with a plurality of layers of reinforcement frames at intervals, and the reinforcement frames are formed by welding square steel pipes. So set up, further improved the structural strength of cell body.

Preferably, the driving device is a motor, the transmission rod is a ball screw, an output shaft of the motor is connected with a driving end of the ball screw, and the first negative plate and the second negative plate are both connected with the ball screw through screw nuts.

The utility model provides a pair of when energy-saving pair flies target oxidation groove and uses suitable for micro arc oxidation technology, pass through the anchor clamps clamping with the work piece on the anode assembly to put into the cavity, drive arrangement drive transfer line corotation, and then the transfer line drives first negative plate and second negative plate and all draws close to the anode assembly at both middle parts, has shortened the distance between negative plate and the positive pole work piece product, is favorable to forming film with higher speed, has strengthened the homogeneity of product surface oxidation coating, has practiced thrift the energy consumption. After the oxide film layer on the surface of the workpiece exceeds 5 micrometers, the driving device drives the transmission rod to rotate reversely according to the detected plasma power signal, so that the first negative plate and the second negative plate are driven to be far away from the anode assemblies at the middle parts of the first negative plate and the second negative plate, the distance between the negative plate and the anode workpiece product is increased, and the uniformity of the oxide coating on the surface of the product is improved.

Compared with the prior art, the energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process has the following substantive characteristics and progress: the energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process optimizes the internal structure of the tank body by arranging the plurality of anode assemblies crossing the cavity, forms a plurality of micro-arc oxidation working areas in the cavity, improves the treatment efficiency of the micro-arc oxidation process, simultaneously utilizes the driving device in the movable cathode assembly to drive the transmission rod to rotate forwards and backwards in sequence or gradually, changes the distance between the cathode plate and the anode workpiece product at different stages of the micro-arc oxidation reaction, greatly improves the uniformity and the density of the surface oxidation coating of the product, reduces the comprehensive energy consumption of surface treatment, and realizes the large-scale industrial production application of the micro-arc oxidation process.

Drawings

FIG. 1 is a front view of an energy-saving twin-fly target oxidation tank suitable for micro-arc oxidation process in an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic view of an assembly structure of the anode assembly and the tank body;

FIG. 5 is an enlarged partial schematic view at A of FIG. 4;

FIG. 6 is a schematic perspective view of the swing clamp;

fig. 7 is a perspective view of the cushion pad.

Reference numerals: the device comprises a tank body 1, an anode assembly 2, a support 3, a connecting seat 4, a hanging frame 5, a swing clamp 6, a workpiece 7, a movable cathode assembly 8, a buffer gasket 9, an end conducting strip 21, a middle conducting strip 22, a V-shaped joint 23, a pressure head 61, an installation seat 62, a locking arm 63, a motor 81, a first cathode plate 82, a second cathode plate 83, a transmission rod 84, an upper base plate 91, a lower base plate 92 and an interlayer 93.

Detailed Description

The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.

The energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process shown in fig. 1 to 7 is used for improving the treatment efficiency of the micro-arc oxidation process and realizing the large-scale industrial production application of the micro-arc oxidation process in the process of implementing the micro-arc oxidation process. The double-flying-target oxidation tank optimizes the internal structure of the tank body by arranging the anode assemblies stretching across the cavity, forms a plurality of micro-arc oxidation working areas in the cavity, and improves the treatment efficiency of the micro-arc oxidation process. Meanwhile, the double-flying-target oxidation tank utilizes the driving device in the movable cathode assembly to drive the transmission rod to rotate forwards or reversely, the distance between the cathode plate and the anode workpiece product is changed at different stages of micro-arc oxidation reaction, the uniformity and the density of the oxidation coating on the surface of the product are greatly improved, and the energy consumption of surface treatment is reduced.

As shown in figure 1, the energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process comprises a tank body 1, an anode assembly 2, a movable cathode assembly 8 and a clamp for clamping a workpiece 7. The tank body 1 has a cavity for accommodating an electrolyte therein. As shown in connection with fig. 2, the anode assembly 2 spans over the cavity. And a support 3 for supporting the end part of the anode assembly 2 is arranged on the side wall of the tank body 1. Both ends of the anode assembly 2 are connected with the support 3 through the connecting seat 4. The fixed end of the clamp is connected with the anode assembly 2. The indenter 61 of the fixture and the side wall of the anode assembly 2 form a grip on the workpiece 7.

As shown in fig. 3, the moving cathode assembly 8 includes a driving device, a first cathode plate 82, a second cathode plate 83, and a driving rod 84. The driving device is connected with the top of the tank body 1. The output of the drive is connected to the drive link 84 and drives the drive link 84 to rotate. The transmission bars 84 are arranged perpendicular to the direction of the anode assembly 2 across the cavity. The first cathode plate 82 and the second cathode plate 83 are both arranged parallel to the anode assembly 2. The anode assembly 2 is located between the first cathode plate 82 and the second cathode plate 83. The first cathode plate 82 and the second cathode plate 83 are each connected to a drive rod 84. The first cathode plate 82 and the second cathode plate 83 both translate along the axial direction of the drive rod 84 as the drive rod 84 rotates.

Wherein, the transmission rod 84 rotates forwards, and the first cathode plate 82 and the second cathode plate 83 both approach to the anode assembly 2 at the middle part of the two; the drive rod 84 is reversed with the first and second cathode plates 82, 83 away from the anode assembly 2 in the middle of the plates.

The driving means is, for example, a motor 81. The drive link 84 is a ball screw. The output shaft of the motor 81 is connected with the driving end of the ball screw. The first cathode plate 82 and the second cathode plate 83 are both connected to a ball screw through a screw nut.

As shown in fig. 1, a plurality of layers of reinforcement frames are arranged on the outer wall of the tank body 1 at intervals. The reinforced frame is formed by welding square steel pipes. So set up, further improved the structural strength of cell body 1.

The embodiment of the utility model provides a when energy-saving pair flies target oxidation groove and uses suitable for micro arc oxidation technology, pass through the anchor clamps clamping with work piece 7 on anode assembly 2, and put into the cavity, drive arrangement drive transfer line 84 corotation, and then transfer line 84 drives first negative plate 82 and second negative plate 83 and all draws close to anode assembly 2 at both middle parts, the distance between negative plate and the positive pole work piece product has been shortened, be favorable to forming film with higher speed, the homogeneity of product surface oxidation coating has been strengthened, the energy consumption has been practiced thrift. After the oxide film layer on the surface of the workpiece 7 exceeds 5 micrometers, according to the detected plasma power signal, the driving device drives the transmission rod 84 to rotate reversely, so that the first cathode plate 82 and the second cathode plate 83 are driven to be far away from the anode assemblies 2 at the middle parts of the first cathode plate and the second cathode plate, the distance between the cathode plate and the anode workpiece product is increased, and the uniformity of the oxide coating on the surface of the product is improved.

As shown in fig. 2, a pair of anode assemblies 2 span above the chamber. Each anode assembly 2 is correspondingly provided with a group of movable cathode assemblies 8. By the arrangement, a four-cathode structure is formed, the distance between the cathode plate and the anode workpiece 7 product is shortened, the accelerated film forming is facilitated, the uniformity of the oxide coating on the surface of the product is enhanced, and the energy consumption is saved.

As shown in fig. 3, a hanger 5 is provided on the top of the tank body 1. The hanging bracket 5 is connected with the side wall of the trough body 1. So set up, stores pylon 5 is used for linking to each other with outside lifting device, has promoted the convenience of cell body 1 hoist and mount transportation.

As shown in fig. 4, the anode assembly 2 includes end conductive strips 21 and an intermediate conductive strip 22. A pair of end conductive strips 21 are connected by a central conductive strip 22. The end conducting strip 21 is provided with a V-shaped connector 23. The V-shaped joint 23 is embedded in the connection socket 4. The surfaces of the end conductive strips 21 and the surfaces of the intermediate conductive strips 22 are coated with graphite coatings. With the arrangement, the middle conductive strips 22 are connected with the end conductive strips 21 to form the segmented anode assembly 2, so that the anode assembly 2 with a proper length can be designed according to the size of the tank body 1.

The V-shaped joint 23 serves to improve the stability of the conductive contact between the anode assembly 2 and the connection socket 4. The graphite coating applied to the surfaces of the end conducting bars 21 and the surfaces of the intermediate conducting bars 22 further improves the corrosion resistance of the anode assembly 2 in an acid-base environment of use, greatly reduces contact resistance, and improves contact conductivity with a specific product hanger. Meanwhile, the graphite coating enhances the surface heat dissipation capacity of the anode assembly 2, and is beneficial to dispersing heat generated due to the current skin effect in a pulse electric field mode.

The end conductive strips 21 and the middle conductive strips 22 are made of aluminum strips or copper tube-clad aluminum strips. The graphite coating can be prepared by a PVD process. The thickness of the graphite coating is 1-10 microns.

As shown in fig. 5, a buffer washer 9 is provided between the holder 3 and the connecting seat 4. As shown in fig. 7, the cushion pad 9 includes an upper pad plate 91, a lower pad plate 92, and an interlayer 93. The interlayer 93 connects the upper pad plate 91 and the lower pad plate 92. The upper shim plate 91 is connected to the bottom of the connecting block 4. The lower pad 92 is attached to the top of the stand 3. So set up, further promoted the electrically conductive contact stability between anode assembly 2 and connecting seat 4, be favorable to avoiding plasma power to produce the striking sparks, the electric shock problem among the output process.

As shown in fig. 6, the clamp is a swing clamp 6. The swing clamp 6 includes a pressing head 61, a pressing arm, a mounting seat 62, and a lock arm 63. The mount 62 is connected to the side wall of the anode assembly 2. One end of the pressing arm is connected to the pressing head 61. The other end of the press arm is hinged to the mounting 62. The locking arm 63 is hinged to the mounting seat 62. So set up, be favorable to realizing the quick clamping of product, and then improved production efficiency. In addition, the pressure head 61 of the swing clamp 6 increases the conductive contact area, avoids ignition of a hanging point, reduces the frequency of hanger repair, and improves the production stability and the yield.

The manufacturing steps of the double-flying-target oxidation tank in the embodiment of the invention are as follows:

step 1: welding a groove body prototype and performing groove outside reinforcement

Welding a groove body prototype with the size of 3000 multiplied by 1100 multiplied by 1300mm (L multiplied by W multiplied by H, inner size) by taking a high-quality reinforced PP plate with the thickness of 20mm as a main material through a pressurizing continuous plastic welding process; and a multilayer high-strength 50 multiplied by 70 multiplied by 3mm square steel pipe is wrapped outside the groove body, a reinforced frame is welded to perform precise-dimension groove external reinforcement, and a PP plate thin layer with the thickness of being smooth and 5mm is coated on the outer surface of the multilayer square high-strength steel pipe to perform aesthetic treatment and corrosion prevention treatment.

Step 2: manufacture of negative plate and overflow groove

Eight high-quality 316L stainless steel plates (the specification is 900 multiplied by 150 multiplied by 2 mm) fixed by high-conductivity copper busbar (the specification is 80 multiplied by 8 mm) are uniformly arranged on two sides of the length direction in the tank body and are used as cathode plates. An overflow groove (with the width of 150 mm) is arranged on one side of the width direction in the groove body. A small-caliber, porous and detachable filter screen made of a porous PP plate with the thickness of 20mm is arranged at the notch of the overflow groove. The upper part of the PP plate porous filter screen can be additionally provided with filter gauze. So set up, the overflow launder is arranged in preventing that the electrolyte in the cavity from overflowing from the top of cell body, and dismantlement formula filter screen is used for filtering the electrolyte formation that overflows.

And step 3: method for manufacturing double-flying target on tank body

Four groups of V-shaped water-cooling functional plugs are symmetrically arranged on the two sides of the upper plane edge of the groove body in the width direction (wherein mounting holes for connecting a micro-arc oxidation power supply anode output cable are formed in the outer sides of two groups of copper bases on one side), and the copper bases and two groups of high-conductivity red copper bar anodes form double-flying-target four-pin reverse V-shaped plugs which are used for good conductive fixing.

And 4, step 4: manufacturing of tank body bottom and side surface water drainage, cooling heat exchange and air blowing stirring pipeline system

The bottom plane of the groove body slightly inclines towards the drainage side by a small angle (the inclination angle is 5) ^o ) So as to be beneficial to the complete discharge of the bath solution; the bottom of the oxidation tank body 1 comprises a PPR pipeline with a symmetrically distributed air-blowing stirring function (the outside of the tank body comprises one valve capable of adjusting air-blowing flow) and a reflux sharing pipeline for cooling tank liquid; a set of discharge valve and a set of return valve for sending out the tank liquor by cooling heat exchange are arranged below the outer plane of the side of the overflow groove of the tank body; in addition, a pure water automatic supply or supplement pipeline is arranged inside the tank body. So set up, the air-blowing stirring of PPR pipeline is favorable to forming micro-nano bubble in electrolyte, utilizes the jet flow that micro-nano bubble ulcerated the formation to further strike the surface of work piece, and then has promoted oxidation coating's homogeneity and density.

And 5: installation of various process on-line monitoring sensors

The tank body can be optionally provided with sensors such as a thermometer, a PH meter, a conductivity meter, a specific gravity meter, a liquid level detector, a counter and the like with an output module so as to realize real-time and on-line digital monitoring of the micro-arc oxidation process and large data management of batch production.

Step 6: step-by-step debugging of various functions of groove body

When the energy-saving and environment-friendly double-flying-target oxidation tank is used for batch processing of 14-inch magnesium alloy notebook shells, the number of single-batch pendants can be increased to 48pcs.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments can be provided in addition to the above embodiments. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like that are made within the spirit and principle of the present invention are within the scope of the present invention.

Claims (8)

1. An energy-saving double-flying-target oxidation tank suitable for a micro-arc oxidation process is characterized by comprising a tank body, an anode assembly, a movable cathode assembly and a clamp for clamping a workpiece;

the electrolytic bath is characterized in that a cavity for containing electrolyte is formed in the bath body, the anode assembly stretches over the cavity, a support for supporting the end part of the anode assembly is arranged on the side wall of the bath body, the fixed end of the clamp is connected with the anode assembly, and a pressure head of the clamp and the side wall of the anode assembly clamp a workpiece;

portable negative pole subassembly includes drive arrangement, first negative plate, second negative plate and transfer line, drive arrangement links to each other with the top of cell body, drive arrangement's output links to each other with the transfer line, the direction that transfer line perpendicular to anode assembly spanes the cavity is arranged, first negative plate and second negative plate all are on a parallel with anode assembly and arrange, anode assembly is located between first negative plate and the second negative plate, first negative plate and second negative plate all link to each other with the transfer line.

2. The energy-saving type double-flying-target oxidation tank suitable for the micro-arc oxidation process according to claim 1, wherein two ends of the anode assembly are connected with the support through the connecting seat, a buffer gasket is arranged between the support and the connecting seat, the buffer gasket comprises an upper base plate, a lower base plate and an interlayer, the interlayer is connected with the upper base plate and the lower base plate, the upper base plate is connected with the bottom of the connecting seat, and the lower base plate is connected with the top of the support.

3. The energy-saving type twin flying target oxidation tank for micro arc oxidation process as claimed in claim 1, wherein the anode assembly comprises end conductive strips and a middle conductive strip, a pair of end conductive strips are connected by the middle conductive strip, the end conductive strips are provided with V-shaped joints, the V-shaped joints are embedded in the connection base, and the surfaces of the end conductive strips and the surfaces of the middle conductive strips are coated with graphite coatings.

4. The energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process as claimed in claim 1, wherein the clamp is a swing clamp, the swing clamp comprises a pressure head, a pressure arm, a mounting seat and a locking arm, the mounting seat is connected with the anode assembly, one end of the pressure arm is connected with the pressure head, the other end of the pressure arm is hinged with the mounting seat, and the locking arm is hinged with the mounting seat.

5. The energy-saving type double-flying-target oxidation tank suitable for the micro-arc oxidation process as claimed in claim 1, wherein a pair of anode assemblies is spanned above the cavity, and each anode assembly is provided with a group of movable cathode assemblies correspondingly.

6. The energy-saving type double-flying-target oxidation tank suitable for the micro-arc oxidation process as claimed in claim 1, wherein a hanging rack is arranged at the top of the tank body, and the hanging rack is connected with the side wall of the tank body.

7. The energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process as claimed in claim 1, wherein a plurality of layers of reinforcement frames are arranged on the outer wall of the tank body at intervals, and the reinforcement frames are formed by welding square steel pipes.

8. The energy-saving double-flying-target oxidation tank suitable for the micro-arc oxidation process according to claim 1, wherein the driving device is a motor, the transmission rod is a ball screw, an output shaft of the motor is connected with a driving end of the ball screw, and the first negative plate and the second negative plate are both connected with the ball screw through screw nuts.

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