CN117966074B - Nanometer yttrium oxide suspension plasma spraying equipment and spraying method thereof - Google Patents
Nanometer yttrium oxide suspension plasma spraying equipment and spraying method thereof Download PDFInfo
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- CN117966074B CN117966074B CN202410376684.9A CN202410376684A CN117966074B CN 117966074 B CN117966074 B CN 117966074B CN 202410376684 A CN202410376684 A CN 202410376684A CN 117966074 B CN117966074 B CN 117966074B
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- 238000007750 plasma spraying Methods 0.000 title claims abstract description 32
- 239000000725 suspension Substances 0.000 title claims abstract description 32
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000005507 spraying Methods 0.000 title claims abstract description 21
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 239000007921 spray Substances 0.000 claims description 19
- 230000003584 silencer Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 description 8
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
Abstract
The invention relates to the technical field of suspension plasma spraying, in particular to nanometer yttrium oxide suspension plasma spraying equipment and a spraying method thereof. The nanometer yttrium oxide suspension plasma spraying equipment solves the problems of unstable quality or equipment damage caused by radial runout or axial float of a workpiece when spraying cylindrical or circular tubular workpieces by arranging the radial pressing device and the axial pressing device.
Description
Technical Field
The invention relates to the technical field of suspension plasma spraying, in particular to nanometer yttrium oxide suspension plasma spraying equipment and a spraying method thereof.
Background
Yttria suspension plasma spray is a process in which yttria suspension is sprayed onto a substrate surface using plasma spray techniques. The technology combines the high temperature and high speed characteristics of plasma spraying and the unique physical and chemical properties of yttrium oxide materials, thereby realizing the strengthening and modification of the surface of the matrix. During the yttria suspension plasma spraying process, the high temperature plasma flame generated by the plasma torch heats the particles in the yttria suspension to a molten or semi-molten state. These molten particles are then sprayed onto the pretreated substrate surface at extremely high velocity to form a firmly adhering yttria coating. Such coatings have a variety of excellent properties such as high hardness, high abrasion resistance, high corrosion resistance, and good thermal stability. Therefore, the yttrium oxide suspension plasma spraying technology has wide application prospect in various fields, especially in the occasions needing to improve the surface property of the material and prolong the service life.
The existing suspension plasma spraying equipment is usually a plasma spraying gun for carrying out thermal spraying on the surface of a workpiece, when carrying out plasma spraying on the outer circumference and the inner circumference of a cylindrical or circular tube-shaped workpiece, the workpiece is required to be placed on a corresponding carrier roller, the carrier roller drives the workpiece to rotate, and the spraying gun sequentially sprays along the length direction of the workpiece, however, radial runout or axial movement easily occurs when the workpiece rotates on the carrier roller, so that the spraying is uneven, even the collision spraying gun causes the workpiece or the spraying gun to be damaged, in addition, in the existing mode of completing the length of the workpiece through the movement of the spraying gun, the discharge amount of the nanometer yttrium oxide suspension is unstable, and the situation of uneven spraying easily occurs is required to be provided.
Disclosure of Invention
In order to solve the problems, the invention provides a nano yttrium oxide suspension plasma spraying device and a spraying method thereof, and the nano yttrium oxide suspension plasma spraying device solves the problems of unstable quality or equipment damage caused by radial runout or axial movement of a workpiece when the cylindrical or circular tubular workpiece is sprayed.
The technical scheme of the invention is as follows:
The utility model provides a nanometer yttrium oxide suspension plasma spraying equipment, includes equipment body and work rest, the work rest includes two parallel arrangement's rotatable bearing roller, and the work piece is placed on the bearing roller, the axial central line of work piece with the spray gun length direction of equipment body is parallel, and the work rest can be along the spray gun length direction removal of equipment body, be provided with the radial closing device that prevents work piece radial runout and the axial closing device that prevents work piece axial float on the work rest.
The workpiece frame comprises a base, a support column and a top plate, wherein the top plate is fixed above the base through the support column; the workpiece rack is characterized in that a guide rail D is fixedly arranged on the ground, the base is matched with the guide rail D and can move along the guide rail D horizontally and linearly, and a walking driving device is arranged on the workpiece rack.
The walking driving device comprises a rack, a walking gear and a walking motor, wherein the rack is fixedly arranged on the ground, the walking motor is fixed at the bottom of the base, and the walking gear meshed with the rack is fixedly connected to an output shaft of the walking motor.
The radial pressing device comprises pressing rollers, the pressing rollers are arranged above the carrier rollers, the pressing rollers are arranged between the two carrier rollers, the pressing rollers are installed at the bottom of the top plate through telescopic elements A, the fixed ends of the telescopic elements A are fixedly connected to a bottom plate A, the bottom plate A is installed at the bottom of the top plate, the telescopic ends of the telescopic elements A are connected with a pressing roller frame, and the pressing rollers are rotatably installed on the pressing roller frame.
The telescopic element A is a piston type air cylinder, a cylinder body of the piston type air cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly, the air circuit assembly comprises a main communicating pipe, a reversing valve, a pressure reducing valve, an air source pipeline, a pressure gauge and a silencer, the extension cavity or the retraction cavity is connected with the reversing valve through the main communicating pipe, the pressure reducing valve and the silencer are respectively connected to the other side of the reversing valve, the pressure reducing valve is connected with the air source pipeline, and the pressure gauge is arranged on the main communicating pipe.
The axial pressing device comprises a fixed end ball pressing device and a movable end ball pressing device which are respectively arranged at two ends of the workpiece, wherein the fixed end ball pressing device presses the lower part of the workpiece, and the movable end ball pressing device presses the upper part of the workpiece;
The fixed end ball pressing device comprises a ball seat A, a ball cover A and a ball, wherein the bottom of the ball seat A is fixed on the base, the ball cover A is fixedly connected to the upper part of the ball seat A, a spherical cavity for installing the ball is arranged between the ball seat A and the ball cover A, and the ball protrudes out of the outer surfaces of the ball seat A and the ball cover A;
The movable end ball pressing device comprises a telescopic element C, a ball seat B, a ball cover B and a ball, wherein the telescopic element C stretches horizontally, the ball seat B is fixed at the end part of the telescopic end of the telescopic element C, the ball cover B is fixedly connected to the ball seat B, a spherical cavity for installing the ball is arranged between the ball seat B and the ball cover B, and the ball protrudes out of the outer surfaces of the ball seat B and the ball cover B.
The telescopic element C is a piston type air cylinder, the cylinder body of the piston type air cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly, the air circuit assembly comprises a main communicating pipe, a reversing valve, a pressure reducing valve, an air source pipeline, a pressure gauge and a silencer, the extension cavity or the retraction cavity is connected with the reversing valve through the main communicating pipe, the other side of the reversing valve is respectively connected with the pressure reducing valve and the silencer, the pressure reducing valve is connected with the air source pipeline, and the pressure gauge is arranged on the main communicating pipe;
the telescopic element C is connected to the telescopic end of the telescopic element B, the telescopic element B stretches in the vertical direction, the fixed end of the telescopic element B is fixedly connected to the bottom plate B, and the bottom plate B can be connected to the top plate in a linear moving mode in the horizontal direction.
A plasma spraying method of nanometer yttrium oxide suspension is characterized in that a workpiece is placed on a carrier roller of a workpiece frame, the carrier roller rotates to drive the workpiece to rotate, the workpiece frame moves along a spray gun of an equipment body with the rotating workpiece, the spray gun sprays the workpiece, radial runout of the workpiece is prevented through a radial pressing device, and axial movement of the workpiece is prevented through an axial pressing device.
The telescopic element A of the radial compression device is connected with the air circuit assembly to realize radial compression or release, and the compression state is monitored.
The telescopic element C of the axial compression device is connected with the air circuit assembly to realize axial compression or release, and the compression state is monitored.
The invention has the beneficial effects that:
1. The invention discloses nanometer yttrium oxide suspension plasma spraying equipment and a spraying method thereof, which solve the problems of unstable quality or equipment damage caused by radial runout or axial movement of a workpiece when the workpiece is sprayed on a cylindrical or circular pipe-shaped workpiece.
2. The invention discloses nanometer yttrium oxide suspension plasma spraying equipment and a spraying method thereof.
3. The invention discloses nanometer yttrium oxide suspension plasma spraying equipment and a spraying method thereof.
Drawings
The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application.
In the drawings:
FIG. 1 is a schematic diagram of a plasma spraying apparatus for nanometer yttria suspension according to an embodiment of the present invention;
FIG. 2 is a schematic view of a workpiece holder of a nano yttrium oxide suspension plasma spraying apparatus according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is an enlarged view at C in FIG. 2;
Fig. 6 is a schematic diagram of a gas circuit assembly of a nano yttrium oxide suspension plasma spraying apparatus according to an embodiment of the present invention.
The components represented by the reference numerals in the figures are:
The invention comprises the following steps: 1. ground, 2, guide rail a,3, equipment body, 301, spray gun, 4, work frame, 401, base, 402, pillar, 403, top plate, 404, idler, 405, idler frame, 406, rotating driven gear, 407, rotating driving gear, 408, rotating motor, 409, rack, 410, traveling gear, 411, traveling motor, 412, press roller, 413, press roller frame, 414, telescoping member a,415, bottom plate a,416, guide rail B,417, guide rail C,418, bottom plate B,419, telescoping member B,420, bottom plate C,421, telescoping member C,422, gas circuit assembly, 4221, main communicating pipe, 4222, reversing valve, 4223, pressure reducing valve, 4224, gas source pipeline, 4225, pressure gauge, 4226, muffler, 423, ball seat a,424, ball cover a,425, ball, 426, ball seat B,427, ball cover B,5, guide rail D,6, work piece.
Detailed Description
As shown in fig. 1, the plasma spraying device for spraying nano yttrium oxide suspension liquid comprises a device body 3 and a workpiece holder 4, wherein the device body 3 and the workpiece holder 4 are both placed on the ground 1, the device body 3 is in the prior art, and any plasma spraying device in any structural form in the prior art can be used.
As can be seen from fig. 1, a guide rail D5 is provided on the floor 1, and the work rest 4 is horizontally linearly slidable along the guide rail D5 so as to be close to or away from the apparatus body 3.
As shown in fig. 2 and fig. 3, the workpiece rest 4 includes two rotatable carrier rollers 404 disposed in parallel, the workpiece 6 is placed on the carrier rollers 404, the axial center line of the workpiece 6 is parallel to the length direction of the spray gun 301 of the apparatus body 3, the workpiece rest 4 can move along the length direction of the spray gun 301 of the apparatus body 3, and a radial pressing device for preventing radial runout of the workpiece and an axial pressing device for preventing axial runout of the workpiece are disposed on the workpiece rest 4.
The work rest 4 comprises a base 401, a pillar 402 and a top plate 403, wherein the top plate 403 is fixed above the base 401 through the pillar 402; two parallel guide rails D5 are fixedly arranged on the ground 1, the base 401 and the guide rails D5 are matched and can move horizontally and linearly along the guide rails D5, and a walking driving device is arranged on the workpiece frame 4; the guide rail D5 has a T-shaped cross-section structure, and a T-shaped groove matching with the shape of the guide rail D5 is provided at the bottom of the base 401.
The walking driving device comprises a rack 409, a walking gear 410 and a walking motor 411, wherein the rack 409 is fixedly arranged on the ground 1, the walking motor 411 is fixed at the bottom of the base 401, and the output shaft of the walking motor 411 is fixedly connected with the walking gear 410 meshed with the rack 409.
Two groups of roller frames are fixedly arranged at the top of the base 401, each group comprises two roller frames 405 which are parallel, two ends of each roller 404 are arranged between the two roller frames 405 through bearings, a rotation driving device is arranged on one roller 404 and comprises a rotation driven gear 406, a rotation driving gear 407 and a rotation motor 408, the rotation motor 408 is fixedly arranged on the base 401, the rotation driven gear 406 is fixedly connected with the end part of each roller 404, and a rotation driving gear 407 meshed with the rotation driven gear 406 is connected to an output shaft of the rotation motor 408.
The radial pressing device comprises pressing rollers 412, the pressing rollers 412 are arranged above the carrier rollers 404, the pressing rollers 412 are arranged in the middle of the two carrier rollers 404, the pressing rollers 412 are installed at the bottom of the top plate 403 through telescopic elements A414, fixed ends of the telescopic elements A414 are fixedly connected to a bottom plate A415, the bottom plate A415 is installed at the bottom of the top plate 403, the end parts of telescopic ends of the telescopic elements A414 are connected with a pressing roller frame 413, and the pressing rollers 412 are rotatably installed on the pressing roller frame 413 through bearings.
The bottom of the top plate 403 is fixedly provided with a guide rail B416, the bottom plate a415 and the guide rail B416 are matched to linearly move along the horizontal direction of the guide rail B416, the matched structure of the bottom plate a415 and the guide rail B416 can refer to the structural forms of the base 401 and the guide rail D5, not shown in detail in the figure, optionally, the bottom plate a415 can be provided with a walking drive which is the same as the walking drive device structure of the workpiece rack 4 to realize the movement of the bottom plate a415 on the guide rail B416, the movement can also be manually performed, meanwhile, a locking nail is arranged on the side surface of the bottom plate a415, a locking threaded hole is arranged on the side surface of the bottom plate a415, the locking nail is screwed into the locking threaded hole through threads, when the position of the bottom plate a415 needs to be adjusted, the side surface of the guide rail B416 is not pressed any more, at this time, the bottom plate a415 can be moved on the guide rail B416, after the position is adjusted, the locking nail is screwed in, the end of the locking nail is tightly pressed on the side surface of the guide rail B416, so that the bottom plate a415 cannot be moved on the guide rail B416, and the bottom plate B418 and the structure shown in detail below is not the structure.
The telescopic element A414 is a piston cylinder, the cylinder body of the piston cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly 422, as shown in fig. 6, the air circuit assembly 422 comprises a main communicating pipe 4221, a reversing valve 4222, a pressure reducing valve 4223, an air source pipeline 4224, a pressure gauge 4225 and a silencer 4226, the extension cavity or the retraction cavity is connected with the reversing valve 4222 through the main communicating pipe 4221, the other side of the reversing valve 4222 is respectively connected with the pressure reducing valve 4223 and the silencer 4226, the pressure reducing valve 4223 is connected with the air source pipeline 4224, and the pressure gauge 4225 is arranged on the main communicating pipe 4221; the directional valve 4222 is an electromagnetic directional valve.
The axial pressing device comprises a fixed end ball pressing device and a movable end ball pressing device which are respectively arranged at two ends of the workpiece 6, wherein the fixed end ball pressing device presses the lower part of the workpiece 6, and the movable end ball pressing device presses the upper part of the workpiece 6;
As shown in fig. 4, the fixed end ball pressing device comprises a ball seat a423, a ball cover a424 and a ball 425, wherein the bottom of the ball seat a423 is fixed on the base 401, the ball cover a424 is fixedly connected to the upper part of the ball seat a423 through a bolt, a spherical cavity for installing the ball 425 is arranged between the ball seat a423 and the ball cover a424, and the ball 425 protrudes out of the outer surfaces of the ball seat a423 and the ball cover a 424;
as shown in fig. 5, the movable end ball pressing device includes a telescopic element C421, a ball seat B426, a ball cover B427 and a ball 425, wherein the telescopic element C421 stretches horizontally, the ball seat B426 is fixed at the telescopic end of the telescopic element C421, the ball cover B427 is fixedly connected to the ball seat B426, a ball cavity for installing the ball 425 is provided between the ball seat B426 and the ball cover B427, and the ball 425 protrudes out of the outer surfaces of the ball seat B426 and the ball cover B427.
The telescopic element C421 is a piston type cylinder, the cylinder body of the piston type cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly 422, the air circuit assembly 422 comprises a main communicating pipe 4221, a reversing valve 4222, a pressure reducing valve 4223, an air source pipeline 4224, a pressure gauge 4225 and a silencer 4226, the extension cavity or the retraction cavity is connected with the reversing valve 4222 through the main communicating pipe 4221, the other side of the reversing valve 4222 is respectively connected with the pressure reducing valve 4223 and the silencer 4226, the pressure reducing valve 4223 is connected with the air source pipeline 4224, and the pressure gauge 4225 is arranged on the main communicating pipe 4221;
The telescopic element C421 is connected to the telescopic end of the telescopic element B419 through the bottom plate C420, the telescopic element B419 stretches in the vertical direction, the fixed end of the telescopic element B419 is fixedly connected to the bottom plate B418, the bottom plate B418 is connected to the top plate 403 in a linearly movable mode in the horizontal direction, and the telescopic element B419 can be an electric telescopic cylinder.
Based on the nano yttrium oxide suspension plasma spraying equipment, a nano yttrium oxide suspension plasma spraying method is provided, which comprises the following steps: placing the workpiece 6 on a carrier roller 404 of a workpiece frame 4, wherein the carrier roller 404 rotates to drive the workpiece 6 to rotate, the workpiece frame 4 moves along a spray gun 301 of an equipment body 3 with the rotating workpiece 6, the spray gun 301 sprays the workpiece 6, the radial runout of the workpiece is prevented by a radial pressing device, and the axial runout of the workpiece is prevented by an axial pressing device; after the spraying is finished, the operation is reversed, and then the workpiece 6 is taken away to finish a complete spraying processing process.
The specific steps for placing the workpiece 6 are as follows: the workpiece 6 is placed on the two carrier rollers 404 by using a mechanical arm or manually, the right end part of the workpiece 6 is propped against the ball 425 of the fixed end ball pressing device, the position of the ball 425 of the fixed end ball pressing device is fixed without being influenced by the specification and the size of the workpiece 6, the right end of the workpiece 6 is propped against the ball 425 of the fixed end ball pressing device, the position of the telescopic element C421 is firstly extended to the upper left end position of the workpiece 6 by the telescopic element B, and in order not to interfere the placement of the workpiece 6, the movable end ball pressing device is arranged above the workpiece 6, so that enough space is reserved for placing the workpiece 6, compressed air is led into the extending cavity of the telescopic element C421, the retracting cavity is exhausted, the telescopic element C421 is extended, the ball 425 of the movable end ball pressing device is tightly pressed on the left end surface of the workpiece 6, and the specific air path assembly 422 is arranged in the following way: the extension cavity communicates the air source pipeline 4224 with the main communicating pipe 4221 through the reversing valve 4222, the retraction cavity communicates the main communicating pipe 4221 with the muffler 4226 through the reversing valve 4222, the pressure reducing valve 4223 is used for limiting the air pressure entering the extension cavity, so that the force of the telescopic element C421 for pressing the workpiece 6 is constant, and meanwhile, in order to ensure that the workpiece 6 is not crushed, the pressing force of the telescopic element C421 is limited in a safety range through the pressure reducing valve 4223; in order to adapt to workpieces 6 with different lengths, the horizontal position of the telescopic element C421 is adjustable, specifically, the horizontal position of the telescopic element C421 is adjusted by adjusting the position of the bottom plate B418 on the guide rail C417; the extension telescopic element a414 enables the press roller 412 to press the top of the workpiece 6, the setting mode of the air path assembly 422 of the telescopic element a414 is the same as the setting mode of the telescopic element C421, and the setting mode is not repeated, and similarly, in order to adapt to workpieces 6 with different sizes, the horizontal direction position of the press roller 412 is adjustable, and the horizontal direction position of the press roller 412 is adjusted by horizontally sliding the bottom plate a415 on the guide rail B416.
The rotating motor 408 is started, and the rotating motor 408 drives the carrier roller 404 to rotate, so that the workpiece 6 is driven to rotate.
The air path assembly 422 is connected with the telescopic element A414 of the radial compression device to realize radial compression or release, the compression state is monitored, the real-time pressure value of the pressure gauge 4225 is used for monitoring the compression state, when the working state is normal, the pressure value which is displayed by the pressure gauge 4225 and is set by the pressure reducing valve 4223 is consistent, normal fluctuation can be allowed, a normal fluctuation range is set, the real-time value of the pressure gauge 4225 is in the normal fluctuation range to indicate that the compression state is normal, when the real-time value of the pressure gauge 4225 is out of the normal fluctuation range, the abnormal compression state is indicated, the machine is required to be stopped for maintenance, and the reason for the investigation is, for example, the abnormal rotation of the workpiece 6 can be caused by the roller body abrasion of the carrier roller 404 or the compression roller 412.
The air circuit assembly 422 is connected with the telescopic element C421 of the axial compressing device to realize axial compression or release, the compression state is monitored, and the working principle and the method of monitoring are the same as those of the radial compressing device, and are not repeated.
The nanometer yttrium oxide suspension plasma spraying equipment and the method solve the problems of unstable quality or equipment damage caused by radial runout or axial float of a workpiece when the workpiece is sprayed on a cylindrical or circular pipe-shaped workpiece.
Claims (4)
1. The nanometer yttrium oxide suspension plasma spraying equipment is characterized by comprising an equipment body (3) and a workpiece frame (4), wherein the workpiece frame (4) comprises two rotatable carrier rollers (404) which are arranged in parallel, a workpiece (6) is placed on the carrier rollers (404), the axial center line of the workpiece (6) is parallel to the length direction of a spray gun (301) of the equipment body (3), the workpiece frame (4) can move along the length direction of the spray gun (301) of the equipment body (3), and a radial pressing device for preventing the radial runout of the workpiece and an axial pressing device for preventing the axial movement of the workpiece are arranged on the workpiece frame (4);
The workpiece frame (4) comprises a base (401), a support column (402) and a top plate (403), wherein the top plate (403) is fixed above the base (401) through the support column (402); a guide rail D (5) is fixedly arranged on the ground (1), the base (401) is matched with the guide rail D (5) and can move along the guide rail D (5) horizontally and linearly, and a walking driving device is arranged on the workpiece frame (4);
The walking driving device comprises a rack (409), a walking gear (410) and a walking motor (411), wherein the rack (409) is fixedly arranged on the ground (1), the walking motor (411) is fixedly arranged at the bottom of the base (401), and the walking gear (410) meshed with the rack (409) is fixedly connected to an output shaft of the walking motor (411);
The radial pressing device comprises pressing rollers (412), the pressing rollers (412) are arranged above the carrier rollers (404), the pressing rollers (412) are arranged in the middle of the two carrier rollers (404), the pressing rollers (412) are arranged at the bottom of the top plate (403) through telescopic elements A (414), fixed ends of the telescopic elements A (414) are fixedly connected to a bottom plate A (415), the bottom plate A (415) is arranged at the bottom of the top plate (403), the telescopic end parts of the telescopic elements A (414) are connected with pressing roller frames (413), and the pressing rollers (412) are rotatably arranged on the pressing roller frames (413);
The telescopic element A (414) is a piston type air cylinder, a cylinder body of the piston type air cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly (422), the air circuit assembly (422) comprises a main communicating pipe (4221), a reversing valve (4222), a pressure reducing valve (4223), an air source pipeline (4224), a pressure gauge (4225) and a silencer (4226), the extension cavity or the retraction cavity is connected with the reversing valve (4222) through the main communicating pipe (4221), the other side of the reversing valve (4222) is respectively connected with the pressure reducing valve (4223) and the silencer (4226), the pressure reducing valve (4223) is connected with the air source pipeline (4224), and the pressure gauge (4225) is arranged on the main communicating pipe (4221);
The axial pressing device comprises a fixed end ball pressing device and a movable end ball pressing device which are respectively arranged at two ends of the workpiece (6), wherein the fixed end ball pressing device presses the lower part of the workpiece (6), and the movable end ball pressing device presses the upper part of the workpiece (6);
The fixed end ball pressing device comprises a ball seat A (423), a ball cover A (424) and a ball (425), wherein the bottom of the ball seat A (423) is fixed on the base (401), the ball cover A (424) is fixedly connected to the upper part of the ball seat A (423), a ball cavity for installing the ball (425) is arranged between the ball seat A (423) and the ball cover A (424), and the ball (425) protrudes out of the outer surfaces of the ball seat A (423) and the ball cover A (424);
The movable end ball pressing device comprises a telescopic element C (421), a ball seat B (426), a ball cover B (427) and a ball (425), wherein the telescopic element C (421) stretches horizontally, the ball seat B (426) is fixed at the telescopic end part of the telescopic element C (421), the ball cover B (427) is fixedly connected to the ball seat B (426), a ball cavity for installing the ball (425) is arranged between the ball seat B (426) and the ball cover B (427), and the ball (425) protrudes out of the outer surfaces of the ball seat B (426) and the ball cover B (427);
The telescopic element C (421) is a piston type air cylinder, a cylinder body of the piston type air cylinder is divided into an extension cavity and a retraction cavity by a piston, the extension cavity and the retraction cavity are respectively connected with an air circuit assembly (422), the air circuit assembly (422) comprises a main communicating pipe (4221), a reversing valve (4222), a pressure reducing valve (4223), an air source pipeline (4224), a pressure gauge (4225) and a silencer (4226), the extension cavity or the retraction cavity is connected with the reversing valve (4222) through the main communicating pipe (4221), the other side of the reversing valve (4222) is respectively connected with the pressure reducing valve (4223) and the silencer (4226), the pressure reducing valve (4223) is connected with the air source pipeline (4224), and the pressure gauge (4225) is arranged on the main communicating pipe (4221);
The telescopic element C (421) is connected to the telescopic end of the telescopic element B (419), the telescopic element B (419) stretches in the vertical direction, the fixed end of the telescopic element B (419) is fixedly connected to the bottom plate B (418), and the bottom plate B (418) is connected to the top plate (403) in a linearly movable mode in the horizontal direction.
2. The spraying method of the nanometer yttrium oxide suspension plasma spraying equipment according to claim 1, characterized in that the workpiece (6) is placed on a carrier roller (404) of a workpiece frame (4), the carrier roller (404) rotates to drive the workpiece (6) to rotate, the workpiece frame (4) moves along a spray gun (301) of the equipment body (3) with the rotating workpiece (6), the spray gun (301) sprays the workpiece (6), radial runout of the workpiece is prevented through a radial pressing device, and axial movement of the workpiece is prevented through an axial pressing device.
3. A spraying method of a nano yttrium oxide suspension plasma spraying apparatus according to claim 2, characterized in that the radial compression or release is achieved by connecting a gas circuit assembly (422) to a telescopic element a (414) of the radial compression device, and the compression state is monitored.
4. The spraying method of the nanometer yttrium oxide suspension plasma spraying equipment according to claim 2, wherein the axial compression or release is realized by connecting a gas circuit assembly (422) with a telescopic element C (421) of an axial compression device, and the compression state is monitored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410376684.9A CN117966074B (en) | 2024-03-29 | Nanometer yttrium oxide suspension plasma spraying equipment and spraying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410376684.9A CN117966074B (en) | 2024-03-29 | Nanometer yttrium oxide suspension plasma spraying equipment and spraying method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117966074A CN117966074A (en) | 2024-05-03 |
| CN117966074B true CN117966074B (en) | 2024-06-07 |
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| CA1104814A (en) * | 1976-04-19 | 1981-07-14 | Masayuki Fujita | Apparatus for applying refractory material onto the inner surface of a furnace |
| CN206778786U (en) * | 2017-03-21 | 2017-12-22 | 天津恩光科技有限公司 | A kind of boiler tube inner-wall paint even application device |
| CN113426602A (en) * | 2021-05-20 | 2021-09-24 | 计翔宇 | Thermal spraying equipment |
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