CN115213793A - Polishing device and polishing method for production of engine ceramic core - Google Patents
Polishing device and polishing method for production of engine ceramic core Download PDFInfo
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- CN115213793A CN115213793A CN202210850101.2A CN202210850101A CN115213793A CN 115213793 A CN115213793 A CN 115213793A CN 202210850101 A CN202210850101 A CN 202210850101A CN 115213793 A CN115213793 A CN 115213793A
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- impeller
- engine
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- 238000005498 polishing Methods 0.000 title claims abstract description 109
- 239000000919 ceramic Substances 0.000 title claims abstract description 69
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 13
- 244000309464 bull Species 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 230000002441 reversible effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/04—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of solid grinding, polishing or lapping agents
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a polishing device for producing a ceramic core of an engine and a polishing method thereof, and the polishing device comprises a base, wherein the top of the base is provided with a polishing groove, the top of the base, which is close to the opening edge of the polishing groove, is in bolted connection with three pneumatic telescopic rods, the top of the pneumatic telescopic rods is in bolted connection with a top plate, the top plate is in bolted connection with an electric rotating rod at one side position relative to the polishing groove, one end of the bottom of the electric rotating rod is in bolted connection with a rotating plate, one side of the bottom of the rotating plate is provided with a sliding groove, the sliding groove is in meshed sliding connection with two mounting blocks, and one side of the bottom of each mounting block is provided with a clamping plate in a dismounting manner, so that the polishing device relates to the technical field of ceramic core processing and has the beneficial effects that: the processing mode through liquid polishing polishes heterotypic ceramic core, with ceramic core centre gripping in the polishing solution internal rotation, polishes ceramic core surface through the liquid that contains polishing particle, need not artifical manual processing, and liquid polishing can be difficult to the even synchronous polishing in gap department of polishing to ceramic core, promotes the efficiency and the quality of polishing.
Description
Technical Field
The invention relates to the technical field of ceramic core processing, in particular to a polishing device for producing an engine ceramic core and a polishing method thereof.
Background
Ceramic cores are commonly used to form cavities for complex or difficult to form castings, and are installed in the front of modern aircraft engines.
At present, the ceramic core is required to be polished on the surface in the processing process, and the ceramic core is in a special-shaped shape, so that manual polishing is generally required to be performed manually at present, the manual workload is increased, and the special-shaped problem causes the inconvenience of the inner gap position during polishing, the quality of processed effect is reduced, and the normal use of products is influenced.
Disclosure of Invention
The invention aims to provide a polishing device for producing an engine ceramic core and a polishing method thereof, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a burnishing device is used in production of engine ceramic core, the on-line screen storage device comprises a base, the polishing groove has been seted up at the base top, the base top is close to the opening edge bolted connection who polishes the groove has three pneumatic telescopic link, pneumatic telescopic link top bolted connection has the roof, one side position bolted connection that the relative polishing groove of roof has electronic bull stick, electronic bull stick bottom one end bolted connection has the commentaries on classics board, the spout has been seted up to commentaries on classics board bottom one side, spout meshing sliding connection has two installation pieces, installation piece bottom one side dismouting is equipped with splint, two the splint are kept away from the one end of installation piece and just relative one side has been seted up the centre gripping groove, both sides splint carry out the centre gripping fixedly with ceramic core body through the centre gripping groove, the polishing groove bottom rotates and is equipped with the impeller.
In a further embodiment, the polishing tank is provided with a rotary tank close to an inner bottom groove of the impeller, the impeller is meshed with the rotary tank and is rotationally connected with the rotary tank, a sealing ring is sleeved at the edge position of the impeller, the inner tank wall of the base close to the lower part of the rotary tank is connected with a motor through a bolt, and the output end of the motor penetrates through the bottom of the rotary tank and is fixedly connected with the impeller through a bolt.
In a further embodiment, the inner wall of the sliding groove is rotatably connected with a positive and negative threaded rod, two ends of the positive and negative threaded rod are respectively penetrated through and in threaded connection with the two mounting blocks, and the positive and negative threaded rod is far away from a side wall fixedly connected with knob which penetrates through the rotating plate and is connected with one end of the sliding groove in a rotating mode.
In a further embodiment, the mounting groove has been seted up to installation piece bottom one side, splint and mounting groove meshing and plug are connected, the installation piece is close to the mounting groove and relative both sides lateral wall runs through and the sliding connection gag lever post, the spacing groove has all been seted up to the relative both sides relative position of the relative gag lever post of splint, the gag lever post meshes and plug with the spacing groove and is connected.
In a further embodiment, a sliding block is fixedly connected to the outer side of the limiting rod, a sliding rod is welded to the mounting block close to the inner groove wall penetrating through the limiting rod and opposite to the sliding block, the sliding rod is penetrated through and slidably connected with the sliding block, and a spring is welded to the position, far away from the limiting groove, of the sliding block and the inner groove wall of the welding sliding rod.
In a further embodiment, a thread groove is formed in the upper inner groove wall of the clamping plate close to the clamping groove, a lifting screw is connected to the thread of the inner groove wall of the thread groove in a rotating mode, a pressing plate is connected to one side of the bottom of the lifting screw in a rotating mode, an anti-falling rod is connected to the top of the inner wall of the thread groove in a welding mode, and the anti-falling rod penetrates through the lifting screw and is connected with the lifting screw in a sliding mode.
In a further embodiment, the clamping plate and the impeller are made of wear-resistant materials, and one side of the base, which is close to the polishing groove, is connected with a drain pipe in a penetrating and inserting mode.
Preferably, based on the above method for using the polishing device for producing the engine ceramic core, the method comprises the following steps:
a1, placing a ceramic core body of an engine between clamping grooves between two clamping plates, and then sliding towards the middle in a sliding groove through a mounting block to drive the clamping plates to clamp the ceramic core;
a2, pouring polishing liquid into the polishing groove, then opening the pneumatic telescopic rod to drive the top plate and the clamping mechanism below the top plate to descend together, and after the clamping plate and the ceramic core descend into the polishing liquid;
a3, the impeller of polishing inslot bottom rotates and makes the polishing solution rotate to a direction, and the electronic bull stick of roof bottom drives the ceramic core rotation between commentaries on classics board and the splint afterwards, and the direction of rotation is the effect that is the counter rotation with the rivers direction that the impeller rotation formed, and electronic bull stick pivoted speed is half of impeller slew velocity, this moment through the inside polishing granule that exists of polishing solution to ceramic core surface polish can, and the reversal of direction is the polishing efficiency and the polishing quality that can promote ceramic core.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the special-shaped ceramic core is polished in a liquid polishing processing mode, the ceramic core is clamped in the polishing liquid to rotate, the surface of the ceramic core is polished by the liquid containing polishing particles, manual processing is not needed, and the liquid polishing can uniformly and synchronously polish the gaps which are difficult to polish of the ceramic core, so that the polishing efficiency and quality are improved; liquid polishing can be better carry out the synchronous polishing of even efficient to positions such as heterotypic part or hole gap, the efficiency quality of further promotion ceramic core processing polishing, and carry out the centre gripping through two splint to different ceramic core fixed, make the stability of work piece processing, and set up the impeller that drives liquid pivoted in the polishing solution bottom, ceramic core is reverse to rotate simultaneously, and then form the effect against the current, it can the polishing effect of efficient to ceramic core surface and inside gap position to promote polishing particle in the polishing solution more.
Drawings
FIG. 1 is a schematic perspective view of the main body of the present invention;
FIG. 2 is a perspective view of the cleat assembly of the invention;
FIG. 3 is a front cross-sectional structural view of the main body of the present invention;
FIG. 4 is a schematic bottom view of the rotary plate of the present invention;
FIG. 5 is an enlarged view of the structure at A of FIG. 3 according to the present invention;
FIG. 6 is an enlarged view of the structure at B of FIG. 3 according to the present invention.
In the figure: 1. a base; 2. a polishing tank; 3. a pneumatic telescopic rod; 4. a top plate; 5. an electric rotating rod; 6. rotating the plate; 7. a chute; 8. mounting blocks; 9. a splint; 10. a clamping groove; 11. an impeller; 12. rotating the groove; 13. a motor; 14. a positive and negative threaded rod; 15. a knob; 16. mounting grooves; 17. a limiting rod; 18. a limiting groove; 19. a slider; 20. a slide bar; 21. a spring; 22. a thread groove; 23. a lifting screw; 24. pressing a plate; 25. the anticreep pole.
Detailed Description
The following will clearly and completely describe the technical solutions 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Please refer to fig. 1 and fig. 3, the present embodiment provides a polishing apparatus for producing engine ceramic core, which comprises a base 1, a polishing trough 2 is disposed at the top of the base 1, three pneumatic telescopic rods 3 are bolted to the edge of an opening close to the polishing trough 2 at the top of the base 1, a top plate 4 is bolted to the top of the pneumatic telescopic rods 3, an electric rotating rod 5 is bolted to one side of the polishing trough 2 opposite to the top plate 4, a rotating plate 6 is bolted to one end of the bottom of the electric rotating rod 5, the ceramic core of abnormal shape is polished in a liquid polishing manner, compared with manual polishing, the gap position is polished more effectively by liquid, the quality and effect of polishing are improved, a sliding groove 7 is disposed on one side of the bottom of the rotating plate 6, the sliding groove 7 is engaged with two mounting blocks 8, a clamping plate 9 is disposed on one side of the bottom of the mounting block 8, the clamping grooves 10 are disposed on one side opposite to one end of the two clamping plates 9 far from the mounting blocks 8, the ceramic core bodies are clamped and fixed by the clamping grooves 10, the ceramic core bodies are clamped and rotated and polished by the two clamping plates 9, thereby improving the use diversity of the polishing apparatus, and further making the stability and efficiency of the polishing liquid for processing more stable and the ceramic core 2 and the efficiency of the polishing liquid to be increased by the rotating impeller, the rotating plate 11, the rotating plate, the electric impeller, the rotating plate 11, and efficiency of the electric impeller.
The ceramic core body of an engine is placed between clamping grooves 10 between two clamping plates 9, then the ceramic core body slides towards the middle in a sliding groove 7 through an installation block 8, the clamping plates 9 are driven to clamp the ceramic core tightly, polishing liquid is filled into a polishing groove 2, then a pneumatic telescopic rod 3 is opened to drive a top plate 4 and a clamping mechanism below the top plate to descend together, the clamping plates 9 and the ceramic core body can descend into the polishing liquid, a wave wheel 11 at the bottom of an inner groove of the polishing groove 2 rotates to enable the polishing liquid to rotate towards one direction, then an electric rotating rod 5 at the bottom of the top plate 4 drives the ceramic core body between a rotating plate 6 and the clamping plates 9 to rotate, the rotating direction is the effect that the water flow direction formed by rotation of the wave wheel 11 is in reverse rotation, the rotating speed of the electric rotating rod 5 is half of the rotating speed of the wave wheel 11, the surface of the ceramic core body can be polished through polishing particles existing in the polishing liquid at the moment, and the reverse direction can improve the polishing efficiency and the polishing quality of the ceramic core body.
In the prior art, when the ceramic core is processed and polished, due to the fact that the ceramic core is in the special-shaped shape, manual polishing is needed, the processing efficiency is reduced, meanwhile, the manual workload is increased, the inner sides of gaps are difficult to process, the polishing difficulty is further caused, and the polishing quality is reduced.
Example two
Referring to fig. 3-4, a further improvement is made on the basis of embodiment 1:
the output that there is motor 13 impeller 11 bottom through bolt fixedly connected with, impeller 11 meshes and rotates and is connected with rotary trough 12, rotary trough 12 is seted up in polishing groove 2 bottom relative position, impeller 11 border position cover is equipped with the sealing ring, motor 13 bolted connection is in base 1 and is close to the interior cell wall of rotary trough 12 below, when electronic bull stick 5 in top drives the ceramic core of rotor plate 6 and below centre gripping and rotates, drive the liquid flow of impeller 11 anti-square through motor 13, and then make ceramic core and polishing liquid fluid direction of rotation reverse rotation, and then make rotatory rivers can be faster more efficient carry out the contact friction to its surface, and then promote polishing granule in the polishing slurry and carry out more efficient even polishing to ceramic core surface, the outside that rotor plate 6 is close to spout 7 one end is equipped with knob 15, knob 15 fixedly connected with positive and negative threaded rod 14, positive and negative threaded rod 14 runs through the inner wall rotation connection of rotor plate 6 lateral wall and spout 7, positive and negative threaded rod 14 both ends run through and threaded connection with two installation pieces 8 respectively, when polishing core carries out polishing centre gripping and clamping to ceramic core, through rotating knob 15 positive and negative threaded rod 14, and then can make the smooth the fixed threaded rod and move the ceramic core and carry out the stable clamp device when ceramic core is carried out the polishing in two fixed clamping and the fixed clamp that the ceramic core is more efficient.
EXAMPLE III
Referring to fig. 5, a further improvement is made on the basis of embodiment 1:
since the clamping plate 9 is used in the polishing solution, although the clamping plate 9 is made of wear-resistant material, the clamping plate 9 still suffers loss due to long-term rotation in the polishing solution, and the clamping plate 9 needs to be replaced with a new clamping plate 9 periodically for use.
Splint 9 and impeller 11 are wear-resisting material and make, one side that base 1 is close to polishing groove 2 link up the grafting and is connected with the drain pipe, splint 9 and impeller 11 made through wear-resisting material, can effectually use longer time in the polishing solution, splint 9 meshing and plug are connected with mounting groove 16, mounting groove 16 is seted up in the relative position in mounting block 8 bottom one side, spacing groove 18 has been seted up to splint 9 opposite both sides, spacing groove 18 inner wall meshing and plug are connected with gag lever post 17, gag lever post 17 runs through and sliding connection with the lateral wall that mounting block 8 is close to mounting groove 16, gag lever post 17 pegs graft with gag lever post 18 each other, and then make splint 9 conveniently carry out the dismouting change, mounting block 8 is close to and runs through interior cell wall welded connection with gag lever post 17 and has slide bar 20, slide bar 20 runs through and sliding connection has slider 19, slider 19 fixed connection is in the gag lever post 17 outside, welded connection has spring 21 between slider 19 and the interior cell wall, spring 21 promotes slider 19 and slides on slide bar 20, along with can promote the gag lever post 17 and insert in the gag lever post 18, and then make the dismouting of splint 9 more convenient and high-efficient.
Example four
Referring to fig. 2-3 and fig. 6, a further improvement is made on the basis of embodiment 1:
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an engine is burnishing device for ceramic core production, includes base (1), its characterized in that: polishing groove (2) have been seted up at base (1) top, base (1) top is close to opening edge bolted connection of polishing groove (2) has three pneumatic telescopic link (3), pneumatic telescopic link (3) top bolted connection has roof (4), one side position bolted connection of roof (4) relative polishing groove (2) has electronic bull stick (5), electronic bull stick (5) bottom one end bolted connection has commentaries on classics board (6), spout (7) have been seted up to commentaries on classics board (6) bottom one side, spout (7) meshing sliding connection has two installation pieces (8), the dismouting of installation piece (8) bottom one side is equipped with splint (9), two the one end and relative one side that installation piece (8) were kept away from in splint (9) have seted up centre gripping groove (10), both sides splint (9) carry out the centre gripping with ceramic core body through centre gripping groove (10) and fix, polishing groove (2) bottom is rotated and is equipped with impeller (11).
2. The polishing device for producing the engine ceramic core according to claim 1, wherein: the polishing machine is characterized in that a rotary groove (12) is formed in an inner groove in the bottom, close to the impeller (11), of the polishing groove (2), the impeller (11) is meshed with the rotary groove (12) and is connected with the rotary groove in a rotating mode, a sealing ring is sleeved at the edge position of the impeller (11), the inner groove wall, close to the lower portion of the rotary groove (12), of the base (1) is connected with a motor (13) through bolts, and the output end of the motor (13) penetrates through the bottom of the rotary groove (12) and is fixedly connected with the impeller (11) through bolts.
3. The polishing device for producing the engine ceramic core according to claim 1, wherein: spout (7) inner wall rotates and is connected with positive and negative threaded rod (14), positive and negative threaded rod (14) both ends run through and threaded connection with two installation pieces (8) respectively, lateral wall fixedly connected with knob (15) of changeing board (6) are run through with spout (7) pivoted one end is kept away from in positive and negative threaded rod (14).
4. The polishing device for producing the engine ceramic core according to claim 1, wherein: mounting groove (16) have been seted up to installation piece (8) bottom one side, splint (9) are connected with mounting groove (16) meshing and plug, installation piece (8) are close to mounting groove (16) and relative both sides lateral wall and run through and sliding connection gag lever post (17), spacing groove (18) have all been seted up to the both sides relative position of splint (9) relative gag lever post (17), gag lever post (17) are connected with spacing groove (18) meshing and plug.
5. The polishing device for producing the engine ceramic core according to claim 4, wherein: the utility model discloses a spacing pole (17) welding slide bar (20) and mounting block, spacing pole (17) outside fixedly connected with slider (19), mounting block (8) are close to and run through and have slide bar (20) with spacing pole (17) relative inner groove wall welded connection of slider (19), slide bar (20) run through and sliding connection with slider (19), welded connection has spring (21) between one side that spacing groove (18) were kept away from in slider (19) and the inner groove wall of welding slide bar (20).
6. The polishing device for producing the engine ceramic core according to claim 1, wherein: thread groove (22) have been seted up to cell wall in splint (9) are close to the top in centre gripping groove (10), cell wall screw thread rotates in thread groove (22) and is connected with lifting screw (23), lifting screw (23) bottom one side rotates and is connected with clamp plate (24), thread groove (22) inner wall top welded connection has anticreep pole (25), anticreep pole (25) run through and sliding connection with lifting screw (23).
7. The polishing device for producing the engine ceramic core according to claim 1, wherein: the clamp plate (9) and the impeller (11) are made of wear-resistant materials, and one side of the base (1) close to the polishing groove (2) is communicated with a drain pipe in a splicing manner.
8. The use method of the polishing device for the production of the engine ceramic core is characterized by comprising the following steps of:
a1, placing a ceramic core body of an engine between clamping grooves (10) between two clamping plates (9), and then sliding towards the middle in a sliding groove (7) through a mounting block (8) to drive the clamping plates (9) to clamp the ceramic core;
a2, pouring polishing liquid into the polishing groove (2), then opening the pneumatic telescopic rod (3) to drive the top plate (4) and the clamping mechanism below the top plate to descend together, and after the clamping plate (9) and the ceramic core descend into the polishing liquid;
a3, the impeller (11) at the bottom of the inner groove of the polishing groove (2) rotates to enable the polishing solution to rotate in one direction, then the electric rotating rod (5) at the bottom of the top plate (4) drives the ceramic core between the rotating plate (6) and the clamping plate (9) to rotate, the rotating direction is the effect that the water flow direction formed by rotation of the impeller (11) rotates in the opposite direction, the rotating speed of the electric rotating rod (5) is half of the rotating speed of the impeller (11), the surface of the ceramic core is polished by polishing particles in the polishing solution, and the polishing efficiency and the polishing quality of the ceramic core can be improved by reversing the direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850101.2A CN115213793A (en) | 2022-07-19 | 2022-07-19 | Polishing device and polishing method for production of engine ceramic core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850101.2A CN115213793A (en) | 2022-07-19 | 2022-07-19 | Polishing device and polishing method for production of engine ceramic core |
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