CN111549337A - Oxidation treatment method for multi-element composite oxide film on surface of magnesium alloy - Google Patents
Oxidation treatment method for multi-element composite oxide film on surface of magnesium alloy Download PDFInfo
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- CN111549337A CN111549337A CN202010549240.2A CN202010549240A CN111549337A CN 111549337 A CN111549337 A CN 111549337A CN 202010549240 A CN202010549240 A CN 202010549240A CN 111549337 A CN111549337 A CN 111549337A
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- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
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Abstract
The invention belongs to the technical field of alloy production, and particularly relates to an oxidation treatment method of a multi-element composite oxide film on the surface of a magnesium alloy; the oxidation treatment equipment used in the method comprises an oxidation pond, wherein the rear side surface of the oxidation pond is fixedly connected with an installation plate, and the rear side surface of the installation plate is provided with a motor; according to the invention, the motor drives the two rotatable processing frames, before the processing frames are moved out of the oxidation liquid, the hydraulic rod pushes the sealing door to move downwards to separate the first filter hole from the second filter hole, the sealing door plays a role in sealing the first filter hole, after the processing frames are moved out of the oxidation liquid, the sealing door is kept still for a period of time, the hydraulic rod is controlled to drive the sealing door to move upwards, the bottom of the second filter hole is positioned at the top of the first filter hole, so that the oxidation liquid slowly leaks out, and the oxidation liquid is slowly separated from magnesium alloy when leaking out of the processing frames, so that the magnesium alloy does not move in the processing liquid, the integrity of an oxidation film on the surface of the magnesium alloy is ensured, and the forming quality of the oxidation film is improved.
Description
Technical Field
The invention belongs to the technical field of alloy production, and particularly relates to an oxidation treatment method of a multi-element composite oxide film on the surface of a magnesium alloy.
Background
The magnesium alloy is an alloy formed by adding other elements on the basis of magnesium. The method is characterized in that: the alloy has the advantages of low density (about 1.8g/cm3 magnesium alloy), high strength, large elastic modulus, good heat dissipation, good shock absorption, larger impact load bearing capacity than aluminum alloy, and good organic matter and alkali corrosion resistance. The main alloy elements comprise aluminum, zinc, manganese, cerium, thorium, a small amount of zirconium or cadmium and the like. Currently, the most widely used are magnesium-aluminum alloys, followed by magnesium-manganese alloys and magnesium-zinc-zirconium alloys. The method is mainly used in aviation, aerospace, transportation, chemical engineering, rocket and other industrial departments. The lightest of the practical metals, magnesium has a specific gravity of about 2/3 for aluminum and 1/4 for iron. It is the lightest metal of practical metals, and has high strength and high rigidity.
Because the existing magnesium alloy oxidation treatment equipment has less magnesium alloy treatment amount in one time in order to ensure that the magnesium alloy is fully contacted with the oxidation liquid when the magnesium alloy is treated, the magnesium alloy needs to be taken out in time after the magnesium alloy is oxidized, and the oxidation treatment process of the next batch of magnesium alloy is carried out.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an oxidation treatment method of a multi-element composite oxide film on the surface of a magnesium alloy, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an oxidation treatment method of a multi-element composite oxide film on the surface of magnesium alloy comprises the following steps:
s1: oxidizing the magnesium alloy by oxidation treatment equipment, putting the magnesium alloy to be oxidized into the two treatment frames, and then putting oxidizing liquid into an oxidation pond to enable the height of the oxidizing liquid to be higher than that of the treatment frame at the bottom; enabling the magnesium alloy in the processing frame at the bottom to be immersed into the processing liquid;
s2: starting a motor, driving a long plate by the motor, driving two processing frames to rotate by the long plate, when the upper processing frame enters the oxidizing liquid, enabling the oxidizing liquid to enter the processing frames through a first filtering hole and a second filtering hole, and oxidizing the magnesium alloy, wherein the processing frames are always in a vertical state in the rotating process;
s3: after the magnesium alloy in the processing frame is oxidized and before the processing frame is moved out of the oxidizing liquid, the sealing door is pushed by the hydraulic rod to move downwards, so that the first filtering hole is separated from the second filtering hole, and the sealing door plays a role in sealing the first filtering hole; after the sealing door seals the first filtering hole, in the moving process of the processing frame, the oxidation liquid in the oxidation pond is prevented from entering the processing frame and rubbing the oxidation film on the surface of the magnesium alloy
S4: after the processing frame for sealing the first filter hole is moved out of the oxidation liquid, standing for a period of time, controlling the hydraulic rod to drive the sealing door to move upwards again, enabling the bottom of the second filter hole to be located at the top of the first filter hole, enabling the oxidation liquid to slowly leak out, taking out after the magnesium alloy is dried, and repeating the actions on the magnesium alloy in the other processing frame;
the oxidation treatment equipment in the S1 comprises an oxidation pond, wherein the rear side surface of the oxidation pond is fixedly connected with a mounting plate, the rear side surface of the mounting plate is provided with a motor, the end part of an output shaft of the motor is provided with a long plate, the top and the bottom of the long plate are respectively provided with a rotating rod in a penetrating manner, the front ends of the two rotating rods are fixedly connected with a treatment frame, and the position, close to the bottom, of the treatment frame is provided with a plurality of first filter holes; the two sides of the top of the processing frame are provided with supports, the bottoms of the supports are provided with hydraulic rods, the bottom ends of the hydraulic rods are fixedly connected with sealing doors, and the sealing doors are provided with a plurality of second filter holes; the bottom corners of two sides of the supporting frame are provided with inclined frame plates, and the bottom ends of the two inclined frame plates are closer to the middle positions of two sides of the oxidation pond than the top ends of the two inclined frame plates; when the magnesium alloy oxidation treatment equipment works, the magnesium alloy is required to be taken out in time after the magnesium alloy is oxidized in order to enable the magnesium alloy to fully contact the oxidation liquid when the magnesium alloy is treated by the existing magnesium alloy oxidation treatment equipment, and the oxidation treatment process of the next batch of magnesium alloy is carried out, but after an oxidation film is formed on the surface of the magnesium alloy, the oxidation film is not completely shaped, and if the magnesium alloy is taken out from the oxidation liquid, the oxidation film is easy to generate relative friction with the oxidation liquid, so that the forming quality of the oxidation film is not high, so that the magnesium alloy oxidation treatment equipment mainly solves the problem of how to quickly take the magnesium alloy out from the oxidation liquid, ensures the production of the next batch, and improves the production efficiency; the specific measures and the using process are as follows: the magnesium alloy to be oxidized is placed in the two processing frames through the driving of the motor, the oxidizing liquid is placed in the oxidation tank, the height of the oxidizing liquid is higher than that of the processing frame at the bottom, then the motor is started, the motor drives the long plate, the long plate drives the two processing frames to rotate, when the processing frame above enters the oxidizing liquid, the oxidizing liquid enters the processing frames through the first filter hole and the second filter hole, the magnesium alloy is oxidized, in the rotating process, the rotating rod can rotate on the long plate, so that the processing frames are always in a vertical state, after the magnesium alloy oxidation treatment in the processing frames is completed, before the processing frames are moved out of the oxidizing liquid, the sealing door is pushed by the hydraulic rod to move downwards to separate the first filter hole from the second filter hole, the sealing door plays a role in sealing the first filter hole, and after the processing frame sealing the first filter hole is moved out of the oxidizing liquid, standing for a period of time, controlling the hydraulic rod again to drive the sealing door to move upwards, enabling the bottom of the second filtering hole to be positioned at the top of the first filtering hole, slowly leaking the oxidizing liquid, because the oxidizing liquid is slowly separated from the magnesium alloy when leaking out of the processing frame, the magnesium alloy does not move in the processing liquid, the integrity of the oxidation film on the surface of the magnesium alloy is ensured, the forming quality of the oxidation film is improved, and the other processing frame is positioned in the oxidation liquid, so that the extension efficiency is ensured, and when the oxidation liquid flowing out of the upper processing frame falls into the lower processing frame through the inclined frame plate at the bottom of the oxidation liquid, the oxidation liquid can have a shaking effect, further increasing the amount of the oxidizing liquid in the lower processing frame, and extruding the oxidizing liquid reacted for a period of time in the lower processing frame out of the processing frame, so that the concentration of effective components of the oxidizing liquid in the processing frame is ensured, and the speed of forming an oxide film is further improved; and after the magnesium alloy in the upper processing frame is dried, taking out the magnesium alloy and putting in a new magnesium alloy, and repeating the above actions.
Preferably, the bottom of the sealing door is fixedly connected with a connecting rope, a deflection plate is hinged to the position, close to the top, of the inclined frame plate, the top end of the deflection plate is hinged to the inclined frame plate, and a torsion spring is arranged at the hinged position; the bottom end of the connecting rope is fixedly connected to the position, close to the bottom end, of the bottom surface of the deflection plate; the bottom of the inclined frame plate is provided with an inclined hole, and the inclination angle of the inclined hole is larger than that of the inclined frame plate; when the upper processing frame needs to release the oxidizing liquid, the hydraulic rod drives the sealing door to ascend, when the sealing door ascends, the connecting rope can be driven, the connecting rope can drive the free end of the deflection plate to deflect downwards, further when the oxidizing liquid in the processing frame falls onto the inclined frame plate at the bottom, the oxidizing liquid is left between the inclined frame plate and the deflection plate which deflects slowly at the top, because the deflection plate is always in a deflection state before the sealing door is not stopped, the gap between the deflection plate and the inclined frame plate is gradually reduced, the speed of the oxidizing liquid flowing out from the deflection plate is gradually reduced, but because the amount of the oxidizing liquid blocked by the deflection plate is gradually increased, the flowing strength of the oxidizing liquid at the dynamic gap of the oxidizing liquid accumulated on the inclined frame plate is increased, the wave effect generated by the oxidizing liquid falling into the lower processing frame is better, and the time for the oxidizing liquid accumulated on the inclined frame plate to completely flow down is prolonged, the lower treatment frame has longer wave effect and longer time span for extruding the oxidizing liquid in the lower treatment frame, and the forming efficiency of the oxide film is further improved.
Preferably, the free end of the deflection plate is fixedly connected with a bent rod, the bottom end of the bent rod is fixedly connected with a hemispherical plate, and the spherical surface of the hemispherical plate is closer to the inclined frame plate than the plane of the hemispherical plate; before the free end of the deflection plate is not completely contacted with the inclined frame plate, the oxidizing liquid flowing down from the inclined frame plate can be always blocked by the hemispherical plate, and when the hemispherical plate blocks the oxidizing liquid, the oxidizing liquid is gathered along the spherical surface of the hemispherical plate, so that the oxidizing liquid is gathered from between two adjacent hemispherical plates, and the local strength of the oxidizing liquid falling into the lower processing frame is further improved; meanwhile, after the free end of the deflection plate is completely contacted with the inclined frame plate, the oxidizing liquid on the inclined frame plate can only flow down from the inclined hole, at the moment, the hemispherical plate corresponds to the inclined hole, the hemispherical plate can scatter the oxidizing liquid flowing out from the inclined hole, the wave-raising range of the falling treating liquid to the oxidizing liquid in the treating frame below is enlarged, and the liquid level shaking effect of the treating liquid is ensured.
Preferably, the inclined frame plate at the bottom of the hemispherical plate is provided with a water holding strip which is positioned at the bottom of the inclined hole; after hemisphere board contacted pocket water strip, oxidation liquid can drop in pocket water strip through the back that blocks of hemisphere board, and some oxidation liquid in pocket water strip is washed out through the clearance between hemisphere board and the pocket water strip, and the distance of washing out is farther, and another part oxidation liquid on the pocket water strip can cross the edge of the processing frame that the pocket water strip dropped to the below, guarantees that the edge also receives the unrestrained effect of oxidation liquid.
Preferably, a sponge layer is bonded on the spherical surface of the hemispherical plate, and is made of a nano sponge material; when the sponge layer on the hemispherical plate can flow down in the oxidizing liquid, a part of oxidizing liquid is absorbed, so that the oxidizing liquid is filled in the sponge layer, and then the hemispherical plate is protected when the subsequent oxidizing liquid comes, and the sponge layer is made of a nano sponge material and has better corrosion resistance.
Preferably, one surface of the inclined frame plate opposite to the deflection plate is a concave surface; one surface of the inclined frame plate, which is opposite to the deflection plate, is a concave surface, so that more oxidizing liquid can be reserved at the position, the time of the oxidizing liquid flowing out of the inclined hole can be longer, and the time of the wave action on the oxidizing liquid in the lower processing frame can be longer.
The invention has the technical effects and advantages that:
1. according to the invention, the motor drives the two rotatable processing frames, before the processing frames are moved out of the oxidation liquid, the hydraulic rod pushes the sealing door to move downwards to separate the first filter hole from the second filter hole, the sealing door plays a role in sealing the first filter hole, after the processing frames sealing the first filter hole are moved out of the oxidation liquid, the processing frames are kept standing for a period of time, the hydraulic rod is controlled again to drive the sealing door to move upwards, the bottom of the second filter hole is positioned at the top of the first filter hole, so that the oxidation liquid slowly leaks out, and the oxidation liquid is slowly separated from magnesium alloy when leaking out of the processing frames, so that the magnesium alloy does not move in the processing liquid, the integrity of an oxidation film on the surface of the magnesium alloy is ensured, and the forming quality of the oxidation film is improved.
2. The hydraulic rod drives the sealing door to ascend, the sealing door drives the connecting rope, and the connecting rope can drive the deflection plate to enable the gap between the deflection plate and the inclined frame plate to be gradually reduced, so that the flowing speed of the oxidation liquid from the gap is gradually reduced, but the quantity of the oxidation liquid blocked by the deflection plate is gradually increased, so that the flowing strength of the oxidation liquid at the dynamic gap of the oxidation liquid accumulated on the inclined frame plate is increased, the wave effect generated by the oxidation liquid falling into the lower processing frame is better, the time for the oxidation liquid accumulated on the inclined frame plate to completely flow down is prolonged, the longer wave effect of the oxidation liquid in the lower processing frame is ensured, the longer time span for extruding the oxidation liquid in the lower processing frame is longer, and the forming efficiency of the oxidation film is further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic perspective view of an oxidation treatment apparatus used in the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the position of the processing frame and the long plate of the present invention;
FIG. 5 is an enlarged view of portion B of FIG. 4 according to the present invention;
FIG. 6 is a schematic view of the present invention after the seal door is raised;
FIG. 7 is an enlarged view of the portion C of FIG. 6 according to the present invention;
in the figure: the device comprises an oxidation pond 1, a mounting plate 2, a motor 3, a long plate 4, a rotating rod 5, a processing frame 6, a first filter hole 7, a support 8, a hydraulic rod 9, a sealing door 10, a second filter hole 11, an inclined frame plate 12, a connecting rope 13, a deflection plate 14, an inclined hole 15, a bent rod 16, a hemispherical plate 17 and a water inlet strip 18.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described below with reference to the specific embodiments, and the front, the back, the left, the right, the upper and the lower of the invention are based on the view direction of fig. 6.
As shown in fig. 1 to 7, the method for oxidation treatment of a multi-component composite oxide film on the surface of a magnesium alloy comprises the following steps:
s1: oxidizing the magnesium alloy by oxidation treatment equipment, putting the magnesium alloy to be oxidized into the two treatment frames 6, and then putting an oxidizing solution into the oxidation pond 1 to enable the height of the oxidizing solution to be higher than that of the treatment frame 6 at the bottom; so that the magnesium alloy in the bottom processing frame 6 can be immersed into the processing liquid;
s2: starting the motor 3, driving the long plate 4 by the motor 3, driving the two processing frames 6 to rotate by the long plate 4, when the upper processing frame 6 enters the oxidizing liquid, the oxidizing liquid enters the processing frame 6 through the first filtering hole 7 and the second filtering hole 11, carrying out oxidation treatment on the magnesium alloy, and keeping the processing frame 6 in a vertical state in the rotating process;
s3: after the magnesium alloy in the processing frame 6 is oxidized, before the processing frame 6 is moved out of the oxidizing liquid, the hydraulic rod 9 pushes the sealing door 10 to move downwards, so that the first filtering hole 7 is separated from the second filtering hole 11, and the sealing door 10 plays a role in sealing the first filtering hole 7; after the sealing door 10 seals the first filtering hole 7, in the moving process of the processing frame 6, preventing the oxidizing liquid in the oxidation pond 1 from entering the processing frame 6 and rubbing with an oxide film on the surface of the magnesium alloy;
s4: after the processing frame 6 for sealing the first filtering hole 7 is moved out of the oxidizing liquid, standing for a period of time, controlling the hydraulic rod 9 again to drive the sealing door 10 to move upwards, enabling the bottom of the second filtering hole 11 to be located at the top of the first filtering hole 7, enabling the oxidizing liquid to slowly leak out, taking out after the magnesium alloy is dried, and repeating the actions on the magnesium alloy in the other processing frame 6;
the oxidation treatment equipment in the S1 comprises an oxidation pond 1, wherein the rear side surface of the oxidation pond 1 is fixedly connected with a mounting plate 2, the rear side surface of the mounting plate 2 is provided with a motor 3, the end part of an output shaft of the motor 3 is provided with a long plate 4, the top and the bottom of the long plate 4 are respectively provided with a rotating rod 5 in a penetrating manner, the front ends of the two rotating rods 5 are fixedly connected with a treatment frame 6, and the position, close to the bottom, of the treatment frame 6 is provided with a plurality of first filter holes 7; the two sides of the top of the processing frame 6 are respectively provided with a support 8, the bottom of each support 8 is provided with a hydraulic rod 9, the bottom end of each hydraulic rod 9 is fixedly connected with a sealing door 10, and the sealing door 10 is provided with a plurality of second filter holes 11; the bottom corners of two sides of the supporting frame are respectively provided with an inclined frame plate 12, and the bottom ends of the two inclined frame plates 12 are closer to the middle positions of two sides of the oxidation pond 1 than the top ends; when the magnesium alloy oxidation treatment equipment works, the magnesium alloy is required to be taken out in time after the magnesium alloy is oxidized in order to enable the magnesium alloy to fully contact the oxidation liquid when the magnesium alloy is treated by the existing magnesium alloy oxidation treatment equipment, and the oxidation treatment process of the next batch of magnesium alloy is carried out, but after an oxidation film is formed on the surface of the magnesium alloy, the oxidation film is not completely shaped, and if the magnesium alloy is taken out from the oxidation liquid, the oxidation film is easy to generate relative friction with the oxidation liquid, so that the forming quality of the oxidation film is not high, so that the magnesium alloy oxidation treatment equipment mainly solves the problem of how to quickly take the magnesium alloy out from the oxidation liquid, ensures the production of the next batch, and improves the production efficiency; the specific measures and the using process are as follows: the method comprises the steps of driving two rotatable processing frames 6 through a motor 3, putting magnesium alloy to be oxidized into the two processing frames 6, putting oxidizing liquid into an oxidation pond 1, enabling the height of the oxidizing liquid to be higher than that of the processing frame 6 at the bottom, starting the motor 3, driving a long plate 4 through the motor 3, driving the two processing frames 6 to rotate through the long plate 4, enabling the oxidizing liquid to enter the processing frames 6 through a first filtering hole 7 and a second filtering hole 11 when the processing frame 6 above enters the oxidizing liquid, carrying out oxidation treatment on the magnesium alloy, enabling the processing frames 6 to be in a vertical state all the time due to the fact that a rotating rod 5 can rotate on the long plate 4 in the rotating process, pushing a sealing door 10 to move downwards through a hydraulic rod 9 after the oxidation treatment of the magnesium alloy in the processing frames 6 is completed and before the processing frames 6 are moved out of the oxidizing liquid, and enabling the first filtering hole 7 to be separated from the second filtering hole 11, the sealing door 10 has a plugging effect on the first filter hole 7, the processing frame 6 for sealing the first filter hole 7 is moved out of the oxidation liquid, the sealing door 10 is kept stand for a period of time, the hydraulic rod 9 is controlled again to drive the sealing door 10 to move upwards, the bottom of the second filter hole 11 is positioned at the top of the first filter hole 7, the oxidation liquid slowly leaks out, the oxidation liquid is slowly separated from the magnesium alloy when leaking out of the processing frame 6, the magnesium alloy does not move in the processing liquid, the integrity of the oxidation film on the surface of the magnesium alloy is ensured, the forming quality of the oxidation film is improved, the other processing frame 6 is positioned in the oxidation liquid, the elongation efficiency is ensured, when the oxidation liquid flowing out of the upper processing frame 6 falls into the lower processing frame 6 through the inclined frame plate 12 at the bottom of the oxidation liquid, the oxidation liquid can have a shaking effect, and the oxidation liquid in the lower processing frame 6 is increased, the oxidation liquid after reacting for a period of time in the lower processing frame 6 is pressed out of the processing frame 6, so that the concentration of effective components of the oxidation liquid in the processing frame 6 is ensured, and the speed of forming an oxidation film is further improved; and after the magnesium alloy in the upper processing frame 6 is dried, taking out the magnesium alloy and putting in a new magnesium alloy, and repeating the above actions.
The bottom of the sealing door 10 is fixedly connected with a connecting rope 13, a deflection plate 14 is hinged to the position, close to the top, of the inclined frame plate 12, the top end of the deflection plate 14 is hinged to the inclined frame plate 12, and a torsion spring is arranged at the hinged position; the bottom end of the connecting rope 13 is fixedly connected to the position, close to the bottom end, of the bottom surface of the deflection plate 14; the bottom of the inclined frame plate 12 is provided with an inclined hole 15, and the inclination angle of the inclined hole 15 is larger than that of the inclined frame plate 12; when the upper processing frame 6 needs to release the oxidizing liquid, the hydraulic rod 9 drives the sealing door 10 to ascend, when the sealing door 10 ascends, the connecting rope 13 is driven by the sealing door 10, the free end of the deflection plate 14 is driven by the connecting rope 13 to deflect downwards, further when the oxidizing liquid in the processing frame 6 falls on the inclined frame plate 12 at the bottom, the oxidizing liquid is left between the inclined frame plate 12 and the deflection plate 14 which deflects slowly at the top, because the deflection plate 14 is always in a deflection state before the sealing door 10 stops, the gap between the deflection plate 14 and the inclined frame plate 12 is gradually reduced, further, the velocity of the oxidizing liquid flowing out from the gap is gradually reduced, but because the amount of the oxidizing liquid blocked by the deflection plate 14 is gradually increased, the flowing-out strength of the oxidizing liquid at the dynamic gap of the oxidizing liquid accumulated on the inclined frame plate 12 is increased, and the wave effect generated by the oxidizing liquid in the lower processing frame 6 is better, and the time for the oxidizing liquid accumulated on the inclined frame plate 12 to completely flow down is prolonged, so that the oxidizing liquid in the lower processing frame 6 has a longer wave effect, the time span for extruding the oxidizing liquid in the lower processing frame 6 is longer, and the forming efficiency of the oxide film is further improved.
The free end of the deflection plate 14 is fixedly connected with a bent rod 16, the bottom end of the bent rod 16 is fixedly connected with a hemispherical plate 17, and the spherical surface of the hemispherical plate 17 is closer to the inclined frame plate 12 than the plane of the hemispherical plate 17; before the free end of the deflection plate 14 is not completely contacted with the inclined frame plate 12, the oxidizing liquid flowing down from the inclined frame plate 12 can be blocked by the hemispherical plate 17 all the time, and when the hemispherical plate 17 blocks the oxidizing liquid, the oxidizing liquid is gathered along the spherical surface of the hemispherical plate 17, so that the oxidizing liquid is gathered from the space between two adjacent hemispherical plates 17, and the local strength of the oxidizing liquid falling into the processing frame 6 below is further improved; meanwhile, after the free end of the deflection plate 14 completely contacts the inclined frame plate 12, the oxidizing liquid on the inclined frame plate 12 can only flow down from the inclined hole 15, at the moment, the hemispherical plate 17 corresponds to the inclined hole 15, and the hemispherical plate 17 can disperse the oxidizing liquid flowing out from the inclined hole 15, so that the wave range of the falling treating liquid to the oxidizing liquid in the treating frame 6 below is enlarged, and the liquid level shaking effect of the treating liquid is ensured.
The inclined frame plate 12 at the bottom of the hemispherical plate 17 is provided with a water-collecting strip 18, and the water-collecting strip 18 is positioned at the bottom of the inclined hole 15; after hemisphere board 17 contacted pocket water strip 18, oxidation liquid through hemisphere board 17 block the back, can drop in pocket water strip 18, and some oxidation liquid in pocket water strip 18 dashes out through the clearance between hemisphere board 17 and the pocket water strip 18, and the distance of dashing out is farther, and another part oxidation liquid on pocket water strip 18 can overflow pocket water strip 18 and drop the edge of below processing frame 6, guarantees that the edge also receives the unrestrained effect of oxidation liquid.
A sponge layer is bonded on the spherical surface of the hemispherical plate 17 and made of nano sponge materials; when the sponge layer on the hemispherical plate 17 can flow down in the oxidizing liquid, a part of oxidizing liquid is absorbed, so that the sponge layer is filled with the oxidizing liquid, and then when the subsequent oxidizing liquid comes, the sponge layer plays a role in protecting the hemispherical plate 17, is made of a nano sponge material, and has better corrosion resistance.
One surface of the inclined frame plate 12 opposite to the deflection plate 14 is a concave surface; the inclined frame plate 12 has a concave surface on the side opposite to the deflection plate 14, so that a large amount of oxidizing liquid can be reserved, the time for the oxidizing liquid flowing out of the inclined holes 15 can be prolonged, and the time for the oxidizing liquid in the lower processing frame 6 to have a wave action is prolonged.
When the magnesium alloy oxidation treatment equipment works, the magnesium alloy is required to be taken out in time after the magnesium alloy is oxidized in order to enable the magnesium alloy to fully contact the oxidation liquid when the magnesium alloy is treated by the existing magnesium alloy oxidation treatment equipment, and the oxidation treatment process of the next batch of magnesium alloy is carried out, but after an oxidation film is formed on the surface of the magnesium alloy, the oxidation film is not completely shaped, and if the magnesium alloy is taken out from the oxidation liquid, the oxidation film is easy to generate relative friction with the oxidation liquid, so that the forming quality of the oxidation film is not high, so that the magnesium alloy oxidation treatment equipment mainly solves the problem of how to quickly take the magnesium alloy out from the oxidation liquid, ensures the production of the next batch, and improves the production efficiency; the specific measures and the using process are as follows: the method comprises the steps of driving two rotatable processing frames 6 through a motor 3, putting magnesium alloy to be oxidized into the two processing frames 6, putting oxidizing liquid into an oxidation pond 1, enabling the height of the oxidizing liquid to be higher than that of the processing frame 6 at the bottom, starting the motor 3, driving a long plate 4 through the motor 3, driving the two processing frames 6 to rotate through the long plate 4, enabling the oxidizing liquid to enter the processing frames 6 through a first filtering hole 7 and a second filtering hole 11 when the processing frame 6 above enters the oxidizing liquid, carrying out oxidation treatment on the magnesium alloy, enabling the processing frames 6 to be in a vertical state all the time due to the fact that a rotating rod 5 can rotate on the long plate 4 in the rotating process, pushing a sealing door 10 to move downwards through a hydraulic rod 9 after the oxidation treatment of the magnesium alloy in the processing frames 6 is completed and before the processing frames 6 are moved out of the oxidizing liquid, and enabling the first filtering hole 7 to be separated from the second filtering hole 11, the sealing door 10 has a plugging effect on the first filter hole 7, the processing frame 6 for sealing the first filter hole 7 is moved out of the oxidation liquid, the sealing door 10 is kept stand for a period of time, the hydraulic rod 9 is controlled again to drive the sealing door 10 to move upwards, the bottom of the second filter hole 11 is positioned at the top of the first filter hole 7, the oxidation liquid slowly leaks out, the oxidation liquid is slowly separated from the magnesium alloy when leaking out of the processing frame 6, the magnesium alloy does not move in the processing liquid, the integrity of the oxidation film on the surface of the magnesium alloy is ensured, the forming quality of the oxidation film is improved, the other processing frame 6 is positioned in the oxidation liquid, the elongation efficiency is ensured, when the oxidation liquid flowing out of the upper processing frame 6 falls into the lower processing frame 6 through the inclined frame plate 12 at the bottom of the oxidation liquid, the oxidation liquid can have a shaking effect, and the oxidation liquid in the lower processing frame 6 is increased, the oxidation liquid after reacting for a period of time in the lower processing frame 6 is pressed out of the processing frame 6, so that the concentration of effective components of the oxidation liquid in the processing frame 6 is ensured, and the speed of forming an oxidation film is further improved; and after the magnesium alloy in the upper processing frame 6 is dried, taking out the magnesium alloy and putting in a new magnesium alloy, and repeating the above actions.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An oxidation treatment method of a multi-element composite oxide film on the surface of magnesium alloy is characterized in that: the method comprises the following steps:
s1: oxidizing the magnesium alloy by oxidation treatment equipment, putting the magnesium alloy to be oxidized into the two treatment frames (6), and then putting oxidizing liquid into the oxidation pond (1) to enable the height of the oxidizing liquid to be higher than that of the treatment frame (6) at the bottom;
s2: starting a motor (3), driving a long plate (4) by the motor (3), driving two processing frames (6) to rotate by the long plate (4), when the processing frame (6) above enters into the oxidizing liquid, the oxidizing liquid enters into the processing frame (6) through a first filtering hole (7) and a second filtering hole (11) to carry out oxidation treatment on the magnesium alloy, and keeping the processing frame (6) in a vertical state all the time in the rotating process;
s3: after the magnesium alloy in the processing frame (6) is oxidized, before the processing frame (6) is moved out of the oxidizing liquid, a sealing door (10) is pushed by a hydraulic rod (9) to move downwards, so that the first filtering hole (7) is separated from the second filtering hole (11), and the sealing door (10) plays a role in sealing the first filtering hole (7);
s4: after the treatment frame (6) for closing the first filter hole (7) is moved out of the oxidation liquid, standing for a period of time, controlling the hydraulic rod (9) again to drive the sealing door (10) to move upwards, enabling the bottom of the second filter hole (11) to be located at the top of the first filter hole (7), enabling the oxidation liquid to slowly leak out, taking out after the magnesium alloy is dried, and repeating the action on the magnesium alloy in the other treatment frame (6);
the oxidation treatment equipment in the S1 comprises an oxidation pond (1), wherein the rear side surface of the oxidation pond (1) is fixedly connected with a mounting plate (2), the rear side surface of the mounting plate (2) is provided with a motor (3), the end part of an output shaft of the motor (3) is provided with a long plate (4), the top and the bottom of the long plate (4) are respectively provided with a rotating rod (5) in a penetrating manner, the front ends of the two rotating rods (5) are respectively fixedly connected with a treatment frame (6), and a plurality of first filter holes (7) are formed in the positions, close to the bottom, of the treatment frame (6); the two sides of the top of the processing frame (6) are respectively provided with a support (8), the bottom of each support (8) is provided with a hydraulic rod (9), the bottom end of each hydraulic rod (9) is fixedly connected with a sealing door (10), and the sealing door (10) is provided with a plurality of second filter holes (11); the bottom corners of two sides of the supporting frame are respectively provided with an inclined frame plate (12), and the bottom ends of the two inclined frame plates (12) are closer to the middle positions of two sides of the oxidation pond (1) than the top ends.
2. The method for oxidizing the multi-component composite oxide film on the surface of the magnesium alloy according to claim 1, wherein the method comprises the following steps: the bottom of the sealing door (10) is fixedly connected with a connecting rope (13), a deflection plate (14) is hinged to the position, close to the top, of the inclined frame plate (12), the top end of the deflection plate (14) is hinged to the inclined frame plate (12), and a torsion spring is arranged at the hinged position; the bottom end of the connecting rope (13) is fixedly connected to the position, close to the bottom end, of the bottom surface of the deflection plate (14); inclined holes (15) are formed in the bottoms of the inclined frame plates (12), and the inclination angles of the inclined holes (15) are larger than that of the inclined frame plates (12).
3. The method for oxidizing the multi-component composite oxide film on the surface of the magnesium alloy according to claim 2, wherein: the free end of the deflection plate (14) is fixedly connected with a curved rod (16), the bottom end of the curved rod (16) is fixedly connected with a hemispherical plate (17), and the spherical surface of the hemispherical plate (17) is closer to the inclined frame plate (12) than the plane of the hemispherical plate (17).
4. The method for oxidizing the multi-element composite oxide film on the surface of the magnesium alloy according to claim 3, wherein: the inclined frame plate (12) at the bottom of the hemispherical plate (17) is provided with a water-holding strip (18), and the water-holding strip (18) is positioned at the bottom of the inclined hole (15).
5. The method for oxidizing the multi-element composite oxide film on the surface of the magnesium alloy according to claim 3, wherein: a sponge layer is bonded on the spherical surface of the hemispherical plate (17), and the sponge layer is made of nano sponge materials.
6. The method for oxidizing the multi-component composite oxide film on the surface of the magnesium alloy according to claim 4, wherein: one surface of the inclined frame plate (12) opposite to the deflection plate (14) is a concave surface.
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| CN112376037A (en) * | 2020-10-30 | 2021-02-19 | 阮金妮 | Magnesium alloy surface oxidation treatment method |
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