CN115074797A

CN115074797A - Anodic oxidation device for preventing gas from being trapped in product

Info

Publication number: CN115074797A
Application number: CN202210649982.1A
Authority: CN
Inventors: 戴晋勇
Original assignee: Taixing Zhijin Metal Products Co ltd
Current assignee: Taixing Zhijin Metal Products Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-20

Abstract

The invention discloses an anodic oxidation device for preventing a product from being trapped by air, which comprises a tank body, static balance assemblies, fixed rods and cathode rods, wherein a plurality of static balance assemblies arranged in pairs are arranged on two sides of the inner wall of the tank body, each pair of static balance assemblies is opposite to the horizontal plane, the fixed rods are erected between each pair of static balance assemblies, a workpiece to be subjected to oxidation treatment is fixed on the fixed rods, the cathode rods are arranged in the tank body and positioned beside the workpiece, the rotating part of each static balance assembly is adjusted to a static balance position after the workpiece is installed on the corresponding fixed rod, electrolyte is injected into the tank body, and the workpiece rotates at least one circle in the tank body before being oxidized. The workpiece is placed on the static balance assembly and the fixed rod, the rotating part formed by the workpiece, the fixed rod and the static balance assembly jointly reaches a static balance state, and when air pocket occurs in the electrolytic oxidation process, the workpiece can be pushed to turn over by air pocket buoyancy, so that air is discharged upwards to prevent the air pocket from influencing the oxidation effect for a long time.

Description

Anodic oxidation device for preventing gas from being trapped in product

Technical Field

The invention relates to the technical field of anodic oxidation devices for preventing gas from being trapped in products, in particular to an anodic oxidation device for preventing gas from being trapped in products.

Background

Anodic oxidation is a metal surface treatment process, is mainly used for forming a metal oxide layer, and is widely used in the industry of aluminum and aluminum alloy products.

The main process is that a workpiece product is taken as an anode and is placed in an electrolyte solution for electrifying treatment, oxygen generated by the electrolyte at the anode reacts with a metallographic structure on the surface of the workpiece to form an oxide layer, the oxide layer with the size of several micrometers to several hundred micrometers can be obtained, and the performances of corrosion resistance, wear resistance and the like of the surface of the workpiece are obviously improved.

For workpieces with complicated part shapes, a concave structure is often immersed in electrolyte in the anodizing treatment operation, even though the electrolyte is fully infiltrated by exhausting gas in the early stage, the gas generated in the electrolysis process is collected at the concave structure to form air pockets, and the surface of the workpiece is prevented from contacting with the electrolyte to influence the anodizing process.

Disclosure of Invention

The present invention is directed to an anodic oxidation apparatus for preventing product outgassing, so as to solve the problems mentioned in the background art.

In order to solve the technical problems, the invention provides the following technical scheme:

an anodic oxidation device for preventing gas from being trapped in a product comprises a tank body, static balance assemblies, a fixed rod and cathode rods, wherein a plurality of static balance assemblies which are arranged in pairs are arranged on two sides of the inner wall of the tank body, each pair of static balance assemblies is opposite to the horizontal plane, the fixed rod is erected between each pair of static balance assemblies, a workpiece to be oxidized is fixed on the fixed rod, the cathode rods are arranged in the tank body and positioned beside the workpiece, the rotating part of the static balance assemblies is adjusted to a static balance position after the workpiece is arranged on the fixed rod,

electrolyte is injected into the tank body, and the workpiece rotates at least one circle in the tank body before being oxidized.

The workpiece and the fixed rod are clamped by the static balance component on the inner wall of the tank body, the workpiece, the fixed rod and part of parts on the static balance component are jointly used as rotating parts to be arranged in the electrolyte, because the static balance treatment is carried out, the rotating parts can easily rotate when the workpiece is subjected to a small amount of external force, and after the workpiece rotates at least one circle before the oxidation operation, all air in the concave structure can be in an upward state, all air in the concave positions is exhausted, the air pocket situation is prevented from occurring, in the subsequent operation process, if some concave positions reappear air due to the electrolysis process, because the rotating parts are in static balance, the buoyancy action direction of the air pocket positions can push the workpiece to overturn and exhaust the air pocket as long as the buoyancy of the air pocket positions does not exactly penetrate through the gravity center positions of the rotating parts, prevent the air pocket state from continuing and keep a good electrolytic oxidation process.

The static balance assembly comprises a primary disc, a middle rotating block, a secondary disc assembly and a fixed seat, the fixed seat is fixed on the inner wall of the pool body, the secondary disc assembly is installed on the fixed seat, the middle rotating block is vertically supported by the secondary disc assembly, the vertical relative position of the middle rotating block and the secondary disc assembly is adjustable, the primary disc is rotatably installed in the middle rotating block, and the primary disc is fixed with the fixed rod; the first-level dish includes the disk body, the round pin axle, the transfer piece includes the block, the locking electromagnet, the lifting rack, secondary dish subassembly includes the positioning disk, the lifting gear, the dabber, the disk body quotation is vertical, disk body one side is fixed with the dead lever, one side that the disk body deviates from the dead lever sets up horizontally round pin axle, the round pin axle is inserted in the block, downthehole the locking electromagnet of being connected with round pin axle rotation in the block, the block lateral wall sets up the lifting rack, the vertical setting of positioning disk, one side that the positioning disk deviates from the transfer piece sets up two lifting gear that do not lifting rack meshing, the lifting gear has initiative rotary drive and rotatory dead lock structure, one side that the positioning disk deviates from the transfer piece sets up the dabber, dabber rotary mounting is at the fixing base.

The workpiece is locked on the fixed rod, the workpiece, the fixed rod and the primary disc form a rotating whole relative to the transfer block, after the workpiece, the fixed rod and the primary disc are placed in the rotating whole, the gravity center of the three-in-one rotating whole automatically rotates to the vertical surface which is the same as the pin shaft, then the locking electromagnet locks the pin shaft relative to the rotation of the transfer block, when the locking electromagnet is locked, the gravity center of the rotating part has only height difference relative to the mandrel, at the moment, the lifting gear is matched with the lifting rack to adjust the height positions of the workpiece, the fixed rod, the primary disc and the transfer block, at the tail stage of adjustment, the whole gravity centers of the workpiece, the fixed rod, the primary disc, the transfer block and the secondary disc assembly are penetrated by the axis of the mandrel, when the adjustment is finished, the lifting gear is rotationally locked, the transfer block and the secondary disc assembly are fixed into a moving whole, the workpiece, the fixed rod, the primary disc, the middle rotating block and the secondary disc assembly form complete static balance adjustment of a rotating part, and then the rotating part can be easily rotated to discharge air regardless of air accumulation at the air containing position or a small amount of torque applied to the end part of the mandrel.

The static balance assembly further comprises an electric brush, an electric connection ring is arranged on the outer circular surface of the disc body, the electric brush is connected with an external power supply anode, the electric brush is installed in a floating mode and is in constant contact with the electric connection ring, and the electric connection ring is respectively and electrically connected with the locking electromagnet, the lifting gear and the fixing rod.

The electric brush endows the workpiece with anode electrical property to carry out an electrolytic oxidation process, and the locking electromagnet and the lifting gear also need to be electrically driven in the static balance adjustment and subsequent locking processes.

The static balance assembly further comprises a friction belt, a tension wheel and a driving wheel, the tension wheel and the driving wheel are arranged beside the fixing seat, and the friction belt bypasses the tension wheel, the driving wheel and the mandrel cylindrical surface in sequence.

The driving wheel drives the friction belt to circularly rotate, the tension wheel controls the pre-tightening force of the friction belt, so that the friction force between the friction belt and the mandrel is controlled, at the end of static balance adjustment of the rotating part, the friction belt only needs a trace amount of friction force to drive the rotating part to rotate, if the friction force is insufficient, static balance adjustment of the rotating part is not completely repeated, at the moment, the friction belt slips on the mandrel, the position of the lifting gear needs to be continuously adjusted, the tension wheel determines the size of the friction force, the driving wheel rotates all the time and drives the friction belt to circulate until the friction belt and the mandrel are adjusted to be not slipped, static balance adjustment is in place, and the lifting gear is locked at the moment.

The fixing base upper end has vertical breach, and the breach width equals the dabber diameter.

Dead lever, primary dish, transfer piece, secondary dish subassembly can directly be hoisted out the cell body with the installation work piece, later return at integral hoisting and vertically fall into to accomplish in the breach and place.

Anodic oxidation device still includes magnetic field, feed liquor pipe, drain pipe, and the electrolyte that the cell body was all passed to magnetic field magnetic induction line horizontal distribution to the visual angle of meeting to magnetic field looks: the cathode bar is located on the left side of the workpiece closest to it in its electrical path;

the liquid inlet pipe is positioned on the upper part of the liquid level in the tank body from the injection position in the tank body, and the liquid outlet is positioned on the lower part in the tank body from the drainage position in the tank body.

Feed liquor pipe supplyes electrolyte in toward the cell body, and the drain pipe then draws away the electrolyte that the solubility reduced to some extent, and the existence in magnetic field makes in the electrolysis process electrolyte anion and cation's motion path tend to the upper surface of liquid level, because the existence of hall effect, on the electrolysis path that work piece positive pole and negative pole stick constitute, see with the visual angle of meeting to magnetic field: the positive ions move leftwards, the negative ions move rightwards, the positive ion current moves leftwards, the negative ion current also moves leftwards in the opposite direction of the movement of the positive ions and the negative ion current, under the action of a magnetic field, the moving charges are judged to be subjected to upward force according to the left-hand rule, namely, the ions used as current carriers are distributed to the upper part of electrolyte, the ions on an electrolytic current overflowing path are gathered to the upper part in the liquid, the ion concentration of the liquid in the middle layer of the cell body is reduced, the ions of the liquid in the lower layer of the cell body leak towards the middle layer according to concentration gradient, under the conditions of magnetic field maintenance and electrolytic current existence, the ion concentration is distributed from top to bottom from high to low, the electrolyte with low concentration is drained by a drain pipe, and the supplemented electrolyte directly falls into the liquid layer with high concentration.

The anodic oxidation device also comprises an insulating partition plate, the insulating partition plate is vertically arranged between the workpiece and the cathode bar, and the view angle of the magnetic field is met: the left side of the clapboard is provided with a workpiece, and the right side of the clapboard is provided with a cathode bar.

To let the electrolytic current left in the visual angle with the incident magnetic field, then need let every pair of work pieces, the cathode bar all is the work piece right, pull open the distance of work piece and its right side cathode bar, if rely on the space size to ensure this current direction completely, then there will be the length space of a little extravagant cell body, consequently, separate the work piece with its right side cathode bar through insulating barrier, work piece electrolytic current moves right and need to walk around insulating barrier and just can constitute the return circuit, this bent route is showing longer than the work piece and extends the electric path of electrolytic current left, consequently, insulating barrier can guarantee that electrolytic current extends along demand direction, thereby ion gathering is to the upper portion of electrolyte under the effect of magnetic field.

The current introduced by the cathode bar and the workpiece is pulse current. The pulse current oxidation is superior to fixed direct current because a single electrolysis process is short and energy density is high, and a more uniform and compact oxide layer can be obtained.

The anodic oxidation device further comprises an electrostatic rod, two ends of the electrostatic rod are respectively arranged on the disk body, the electrostatic rod is arranged in parallel with the workpiece and is electrically connected with the power connection ring, an insulating film is arranged on the surface of the electrostatic rod, pulse anode electricity identical to that of the workpiece is introduced into the electrostatic rod, and the period of the power connection pulse of the electrostatic rod and that of the workpiece are staggered and complementary. When a workpiece is in pulse charge, the anions gathered around are in contact with the workpiece with a great current density to carry out anodic electrolysis, oxygen is generated to generate oxidation with the surface structure of the workpiece, in a time period when the workpiece is not in power connection, the static bar charge carries out electrostatic attraction on the anions around and continuously gathers around the workpiece, the gathered charges are not in contact with the metal surface on the static bar to generate electrolysis, only gather due to attraction, in the whole time period, the anions and the cations are continuously transferred between the workpiece and the cathode bar, the stable current required by the magnetic field to construct ion height gradient is kept, in the next workpiece charge period, the contact delay of the anions and the workpiece is shortened, more anions are quickly in contact with the workpiece to carry out electrolysis to generate oxygen, and the quick formation of an oxidation layer is promoted.

Compared with the prior art, the invention has the following beneficial effects: the workpiece is placed through the static balance assembly and the fixed rod, the rotating part formed by the workpiece, the fixed rod and the static balance assembly together achieves a static balance state, and when air pocket occurs in the electrolytic oxidation process, the workpiece can be pushed to turn over by air pocket buoyancy force, so that air is discharged upwards; the magnetic field and the insulating partition board restrain electrolytic current from gathering to the upper layer of liquid, the middle layer of liquid draws ions from the lower layer of liquid, electrolyte concentration gradient distributed according to height is constructed, low-concentration liquid is drained from the lower layer of the tank body, supplemented high-concentration electrolyte is added to the upper layer of the tank body, and pulse current improves uniformity and corrosion resistance of an oxide layer formed by anodic oxidation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the installation profile of the present invention;

FIG. 2 is a schematic illustration of the structure at the static balancing assembly of the present invention;

FIG. 3 is view A-A of FIG. 2;

FIG. 4 is view B of FIG. 2;

FIG. 5 is a schematic view of the operation process of the present invention with an insulating partition, a magnetic field, an electrostatic rod, a liquid inlet pipe and a liquid outlet pipe;

in the figure: 1-tank body, 2-static balance component, 21-primary disc, 211-disc body, 212-power-on ring, 213-pin shaft, 22-transfer block, 221-block body, 222-locking electromagnet, 223-lifting rack, 23-secondary disc component, 231-positioning disc, 232-lifting gear, 233-mandrel, 24-fixed seat, 241-notch, 251-friction belt, 252-tension wheel, 253-driving wheel, 29-electric brush, 3-fixed rod, 4-static rod, 5-cathode rod, 6-insulating partition board, 7-magnetic field, 81-liquid inlet pipe, 82-liquid outlet pipe and 9-workpiece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

an anodic oxidation device for preventing gas from being trapped in a product comprises a tank body 1, static balance assemblies 2, fixing rods 3 and cathode bars 5, wherein a plurality of static balance assemblies 2 arranged in pairs are arranged on two sides of the inner wall of the tank body 1, each pair of static balance assemblies 2 is horizontally arranged face to face, the fixing rods 3 are erected between each pair of static balance assemblies 2, a workpiece 9 to be subjected to oxidation treatment is fixed on the fixing rods 3, the cathode bars 5 are arranged in the tank body 1 and positioned on the workpiece 9, the static balance assemblies 2 adjust a rotating part to a static balance position after the workpiece 9 is arranged on the fixing rods 2,

electrolyte is injected into the tank body 1, and the workpiece 9 rotates at least one circle in the tank body 1 before oxidation.

As shown in figure 1, a workpiece 9 and a fixed rod 3 are clamped by a static balance assembly 2 on the inner wall of a pool body 1, the workpiece 9, the fixed rod 3 and part of parts on the static balance assembly 2 are jointly used as a rotating part to be arranged in electrolyte, because static balance treatment is carried out, the rotating part can be easily rotated when a small amount of external force is applied to the workpiece 9, and after the workpiece 9 rotates at least one circle before oxidation operation, all air in a concave structure can be enabled to be in an upward state, all air in concave positions is exhausted, the air pocket situation is prevented from occurring, in the subsequent operation process, if some concave positions reappear air due to the electrolysis process, because the rotating part is in static balance, the buoyancy action direction of the air pocket position only needs to just penetrate through the gravity center position of the rotating part, and then the buoyancy of the air pocket position can push the workpiece 9 to overturn, the gas mass is discharged, the air pocket state is prevented from being continuous, and a good electrolytic oxidation process is kept.

The static balance assembly 2 comprises a primary disc 21, a transfer block 22, a secondary disc assembly 23 and a fixed seat 24,

a fixed seat 24 is fixed on the inner wall of the tank body 1, a secondary disc assembly 23 is installed on the fixed seat 24, a transit block 22 is vertically supported by the secondary disc assembly 23, the vertical relative position of the transit block 22 and the secondary disc assembly 23 is adjustable, a primary disc 21 is rotatably installed in the transit block 22, and the primary disc 21 is fixed with a fixed rod 3;

the primary disc 21 comprises a disc body 211 and a pin shaft 213, the transfer block 22 comprises a block body 221, a locking electromagnet 222 and a lifting rack 223, the secondary disc assembly 23 comprises a positioning disc 231, a lifting gear 232 and a mandrel 233, the disc body 211 is vertical in surface, one side of the disc body 211 is fixed with a fixed rod 3, one side of the disc body 211 departing from the fixed rod 3 is provided with the horizontal pin shaft 213, the pin shaft 213 is inserted into the block body 221, the locking electromagnet 222 is arranged in a hole which is rotatably connected with the pin shaft 213 in the block body 221, the side wall of the block body 221 is provided with the lifting rack 223, the positioning disc 231 is vertically arranged, one side of the positioning disc 231 facing the transfer block 22 is provided with the two lifting gears 232 which are respectively meshed with the lifting rack 223, the lifting gear 232 is provided with an active rotation driving structure and a rotation locking structure, one side of the positioning disc 231 departing from the transfer block 22 is provided with the mandrel 233, and the mandrel 233 is rotatably installed on the fixed base 24.

As shown in fig. 2 and 3, the workpiece 9 is locked to the fixed rod 3, the workpiece 9, the fixed rod 3 and the primary disc 21 form a rotating whole with respect to the middle rotating block 22, after the three-in-one rotating whole is placed in, the gravity center of the rotating whole automatically rotates to the vertical plane which is the same as the pin shaft 213, then the locking electromagnet 222 locks the pin shaft 213 to rotate with respect to the middle rotating block 22, when the pin shaft 213 does not rotate with respect to the middle rotating block 22 in the subsequent static balance adjustment, when the locking electromagnet 222 is locked, the gravity center of the rotating part has only a height difference with respect to the spindle 233, at this time, the lifting gear 232 is used to cooperate with the lifting rack 223 to adjust the height positions of the four workpieces 9, the fixed rod 3, the primary disc 21, the middle rotating block 22 and the secondary disc 23, at the end stage of the adjustment, the gravity centers of the five workpieces 9, the fixed rod 3, the primary disc 21, the middle rotating block 22 and the secondary disc 23 are penetrated by the axis of the spindle 233, when the adjustment is finished, the lifting gear 232 is locked in a rotating mode, the transfer block 22 and the secondary disc assembly 23 are fixed into a whole, the workpiece 9, the fixing rod 3, the primary disc 21, the transfer block 22 and the secondary disc assembly 23 form complete static balance adjustment of a rotating part, and then the rotating part can be easily rotated to discharge nest air no matter gas is accumulated at a nest air position or a small amount of torque is applied to the end part of the mandrel 233.

The static balance assembly 2 further comprises an electric brush 29, an electric connection ring 212 is arranged on the outer circular surface of the disc body 211, the electric brush 29 is connected with an external power supply anode, the electric brush 29 is installed in a floating mode and keeps contact with the electric connection ring 212, and the electric connection ring 212 is electrically connected with the locking electromagnet 222, the lifting gear 232 and the fixing rod 3 respectively.

The brush 29 imparts the anodic electrical properties to the workpiece 9 for the electrolytic oxidation process, and the locking electromagnet 222 and the lifting gear 232 also require electrical drive during static balance adjustment and subsequent locking.

The static balance assembly 2 further comprises a friction belt 251, a tension wheel 252 and a driving wheel 253, the tension wheel 252 and the driving wheel 253 are arranged beside the fixed seat 24, and the friction belt 251 sequentially bypasses the tension wheel 252, the driving wheel 253 and the cylindrical surface of the mandrel 233.

The driving wheel 253 drives the friction belt 251 to circularly rotate, the tension wheel 252 controls the pre-tightening force of the friction belt 251 to control the friction force between the friction belt 251 and the mandrel 233, at the end of static balance adjustment of the rotating part, the friction belt 251 can drive the rotating part to rotate only by a small amount of friction force, if the friction force is insufficient, the rotating part is not completely re-subjected to static balance adjustment, at the moment, the friction belt 251 is in a slipping state on the mandrel 233, the position of the lifting gear 232 needs to be continuously adjusted, the tension wheel 252 determines the magnitude of the friction force, the driving wheel 253 rotates all the time and drives the friction belt 251 to circulate until the friction belt 251 and the mandrel 233 are adjusted to not slip, the static balance adjustment is in place, and at the moment, the lifting gear 232 is locked.

The upper end of the fixed seat 24 is provided with a vertical notch 241, and the width of the notch 241 is equal to the diameter of the mandrel 233.

As shown in fig. 2 and 4, the fixing rod 3, the primary disc 21, the intermediate block 22 and the secondary disc assembly 23 can be directly hoisted out of the tank body 1 to install the workpiece 9, and then the whole is hoisted back to vertically fall into the gap 241 to complete placement.

Anodic oxidation device still includes magnetic field 7, feed liquor pipe 81, drain pipe 82, and 7 magnetic induction line horizontal distribution in the magnetic field all pass the electrolyte in the cell body 1 to the visual angle of meeting magnetic field 7 sees: the cathode bar 5 is located to the left of the nearest workpiece 9 in its electrical path;

the injection position of the liquid inlet pipe 81 into the tank body 1 is positioned at the upper part of the liquid level in the tank body 1, and the liquid outlet 82 is positioned at the lower part of the tank body 1 from the drainage position in the tank body 1.

As shown in figure 5, the liquid inlet pipe 81 replenishes electrolyte into the cell body 1, the liquid outlet pipe 82 guides away the electrolyte with reduced solubility, the existence of the magnetic field 7 leads the movement path of anions and cations in the electrolyte to tend to the upper surface of the liquid level in the electrolytic process, because of the existence of the Hall effect, on the electrolytic path formed by the anode and the cathode bar 5 of the workpiece 9, under the view angle of figure 5, cations move leftwards, anions move rightwards, the cation current moves leftwards, the anion current is reversed with the movement direction, and also moves leftwards, under the action of the magnetic field 7 distributed outwards from the view plane, the moving charges are judged to be subjected to upward force according to the left-hand rule, namely, the ions used as current carriers are distributed to the upper part of the electrolyte, the ions on the electrolytic current overflow path are gathered to the upper part in the liquid, the ion concentration of the liquid at the middle layer of the cell body 1 is reduced, and the ions of the liquid at the lower layer of the cell body 1 leak towards the middle layer according to the concentration gradient, under the condition that the magnetic field 7 is kept and the electrolytic current exists, the ion concentration is distributed from high to low from top to bottom, the liquid outlet pipe 82 drains the electrolyte with low concentration, and the supplemented electrolyte directly falls into the liquid layer with high concentration.

The anodizing device further comprises an insulating partition 6, wherein the insulating partition 6 is vertically arranged between the workpiece 9 and the cathode bar 5 so as to face the visual angle of the magnetic field 7: the left side of the clapboard 6 is provided with a workpiece 9, and the right side is provided with a cathode bar 5.

To let the electrolytic current go to the left in the view of fig. 5, each pair of workpiece 9 and cathode bar 5 needs to have the workpiece 9 on the right, the distance between the workpiece 9 and the cathode bar 5 on the right is pulled, if the current direction is ensured completely depending on the space size, the length space of the cell body 1 is wasted, therefore, the workpiece 9 is separated from the cathode bar 5 on the right by the insulating partition plate 6, the electrolytic current of the workpiece 9 moves to the right and can form a loop only by bypassing the insulating partition plate 6, the bent path is significantly longer than the electrical path of the electrolytic current extending to the left from the workpiece 9, therefore, the insulating partition plate 6 can ensure that the electrolytic current extends along the required direction, and ions are gathered to the upper part of the electrolyte under the action of the magnetic field 7.

The current passed through the cathode bar 5 and the workpiece 9 is pulse current.

The pulse current oxidation is superior to fixed direct current because a single electrolysis process is short and energy density is high, and a more uniform and compact oxide layer can be obtained.

The anodic oxidation device further comprises an electrostatic rod 4, two ends of the electrostatic rod 4 are respectively arranged on the disc body 211, the electrostatic rod 4 and the workpiece 9 are arranged in parallel, the electrostatic rod 4 is electrically connected with the power connection ring 212, an insulating film is arranged on the surface of the electrostatic rod 4, pulse anode electricity identical to that of the workpiece 9 is introduced to the electrostatic rod 4, and the electrifying pulse periods of the electrostatic rod 4 and the workpiece 9 are staggered and complementary.

When the workpiece 9 is in pulse charge, the anions gathered around contact the workpiece 9 with a maximum current density to carry out anode electrolysis, oxygen is generated to carry out oxidation with the surface structure of the workpiece 9, in the period when the workpiece 9 is not electrified, the charged electrostatic rod 4 performs electrostatic attraction on peripheral anions and continuously gathers around the workpiece 9, the gathered charges cannot contact with the metal surface on the electrostatic rod 4 to generate electrolysis, and only gather due to attraction, in the whole time period, the anions and cations are continuously transferred between the workpiece 9 and the cathode bar 5, the stable current required by the magnetic field 7 for constructing the ion height gradient is kept, and in the charge cycle of the next workpiece 9, the contact delay of anions and the workpiece 9 is shortened, more anions are rapidly contacted with the workpiece 9 to generate oxygen through electrolysis, and the rapid formation of an oxide layer is promoted.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prevent anodic oxidation device of product nest gas which characterized in that: the anodic oxidation device comprises a tank body (1), static balance assemblies (2), a fixed rod (3) and a cathode bar (5), wherein a plurality of static balance assemblies (2) which are arranged in pairs are arranged on two sides of the inner wall of the tank body (1), each pair of static balance assemblies (2) is horizontal and face to face, the fixed rod (3) is erected between each pair of static balance assemblies (2), a workpiece (9) to be subjected to oxidation treatment is fixed on the fixed rod (3), the cathode bar (5) is arranged in the tank body (1) and located beside the workpiece (9), the static balance assemblies (2) adjust a rotating part to a static balance position after the workpiece (9) is installed on the fixed rod (2),

electrolyte is injected into the tank body (1), and the workpiece (9) rotates at least one circle in the tank body (1) before oxidation.

2. The anodic oxidation apparatus for preventing product outgassing according to claim 1, wherein: the static balance assembly (2) comprises a primary disc (21), a middle rotating block (22), a secondary disc assembly (23) and a fixed seat (24),

the fixed seat (24) is fixed on the inner wall of the tank body (1), the secondary disc assembly (23) is installed on the fixed seat (24), the secondary disc assembly (23) vertically supports the transit block (22), the vertical relative position of the transit block (22) and the secondary disc assembly (23) is adjustable, the primary disc (21) is rotatably installed in the transit block (22), and the primary disc (21) is fixed with the fixed rod (3);

the primary disc (21) comprises a disc body (211) and a pin shaft (213), the transfer block (22) comprises a block body (221), a locking electromagnet (222) and a lifting rack (223), the secondary disc assembly (23) comprises a positioning disc (231), a lifting gear (232) and a mandrel (233), the disc surface of the disc body (211) is vertical, one side of the disc body (211) is fixed with the fixed rod (3), one side of the disc body (211) departing from the fixed rod (3) is provided with a horizontal pin shaft (213), the pin shaft (213) is inserted into the block body (221), a locking electromagnet (222) is arranged in a hole which is rotatably connected with the pin shaft (213) in the block body (221), the side wall of the block body (221) is provided with the lifting rack (223), the positioning disc (231) is vertically arranged, one side of the positioning disc (231) facing the transfer block (22) is provided with two lifting gears (232) which are respectively meshed with the lifting rack (223), lifting gear (232) have initiative rotary drive and rotatory dead structure of locking, positioning disk (231) deviate from one side of transfer piece (22) and set up dabber (233), dabber (233) swivelling joint is in fixing base (24).

3. The anodic oxidation apparatus for preventing product outgassing according to claim 2, wherein: the static balance assembly (2) further comprises an electric brush (29), an electricity connecting ring (212) is arranged on the outer circular surface of the disc body (211), the electric brush (29) is connected with an external power supply anode, the electric brush (29) is installed in a floating mode and keeps contact with the electricity connecting ring (212), and the electricity connecting ring (212) is electrically connected with the locking electromagnet (222), the lifting gear (232) and the fixing rod (3) respectively.

4. The anodic oxidation device for preventing the product from being trapped as claimed in claim 3, wherein: the static balance assembly (2) further comprises a friction belt (251), a tension wheel (252) and a driving wheel (253), the tension wheel (252) and the driving wheel (253) are arranged beside the fixed seat (24), and the friction belt (251) sequentially bypasses the tension wheel (252), the driving wheel (253) and the cylindrical surface of the mandrel (233).

5. The anodic oxidation apparatus for preventing product outgassing according to claim 3, wherein: the upper end of the fixed seat (24) is provided with a vertical notch (241), and the width of the notch (241) is equal to the diameter of the mandrel (233).

6. The anodic oxidation apparatus for preventing product outgassing according to claim 2, wherein: anodic oxidation device still includes magnetic field (7), feed liquor pipe (81), drain pipe (82), the electrolyte in cell body (1) is all passed in magnetic field (7) magnetic induction line horizontal distribution to the visual angle of meeting to magnetic field (7) looks: the cathode bar (5) is located on the left side of the workpiece (9) nearest in electrical path thereto;

the injection position of the liquid inlet pipe (81) to the inside of the tank body (1) is positioned at the upper part of the liquid level in the tank body (1), and the drainage position of the liquid outlet (82) from the inside of the tank body (1) is positioned at the lower part of the inside of the tank body (1).

7. The anodic oxidation unit for preventing the product from being trapped as claimed in claim 6, wherein: the anodic oxidation device further comprises an insulating separator (6), wherein the insulating separator (6) is vertically arranged between the workpiece (9) and the cathode bar (5) so as to face the visual angle of the magnetic field (7): the left side of the clapboard (6) is provided with a workpiece (9), and the right side is provided with a cathode bar (5).

8. The anodic oxidation device for preventing the product from being trapped in the air according to claim 7, wherein: the current introduced by the cathode bar (5) and the workpiece (9) is pulse current.

9. The anodic oxidation unit for preventing product outgassing according to claim 8, wherein: the anodic oxidation device further comprises an electrostatic rod (4), two ends of the electrostatic rod (4) are respectively arranged on the disc body (211), the electrostatic rod (4) and the workpiece (9) are arranged in parallel, the electrostatic rod (4) is electrically connected with the power connection ring (212), an insulating film is arranged on the surface of the electrostatic rod (4), a pulse anode electrode which is the same as the workpiece (9) is introduced into the electrostatic rod (4), and the electrification pulse periods of the electrostatic rod (4) and the workpiece (9) are staggered and complementary.