CN220218058U - Abrasive disc type millstone - Google Patents
Abrasive disc type millstone Download PDFInfo
- Publication number
- CN220218058U CN220218058U CN202320207239.0U CN202320207239U CN220218058U CN 220218058 U CN220218058 U CN 220218058U CN 202320207239 U CN202320207239 U CN 202320207239U CN 220218058 U CN220218058 U CN 220218058U
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- Prior art keywords
- grinding
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- layer
- abrasive disc
- blocks
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- 239000004744 fabric Substances 0.000 claims abstract description 13
- 238000007731 hot pressing Methods 0.000 claims abstract description 9
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 239000003292 glue Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 24
- 239000002245 particle Substances 0.000 abstract description 22
- 239000007767 bonding agent Substances 0.000 abstract description 15
- 229910003460 diamond Inorganic materials 0.000 abstract description 11
- 239000010432 diamond Substances 0.000 abstract description 11
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 10
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 10
- 238000005336 cracking Methods 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 7
- 239000011159 matrix material Substances 0.000 abstract description 3
- 239000011449 brick Substances 0.000 description 16
- 238000012360 testing method Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005245 sintering Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000010438 granite Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000011265 semifinished product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000007494 plate polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000008207 working material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The utility model discloses a grinding disc type grinding disc, which comprises a working layer made of a mixture of a bonding agent and diamond particles, a base material layer made of a mixture of a bonding agent and silicon carbide, and a hot-pressed fleece layer made of a hot-pressed fleece matrix; the working layer comprises a plurality of grinding blocks; one side surface of the primer layer is fixedly connected with the bottom of each grinding block, the hot-pressed velvet layer is fixedly connected with the other side surface of the primer layer, and the hot-pressed velvet layer, the primer layer and the working layer are integrally formed through die hot pressing. According to the utility model, the primer layer is arranged and firmly connected with the working layer and the hot-pressed velvet cloth layer, so that the overall strength is improved, and the phenomena of cracking and particle falling are reduced.
Description
Technical Field
The utility model relates to the technical field of grinding tools, in particular to a grinding disc type grinding disc.
Background
Along with the improvement of the living standard of people, the stone processing market has higher and higher requirements on the processing luminosity and the polishing efficiency of the plate polishing. The traditional cutter head type grinding disc cannot meet the requirements of stone processing due to small particle number, low grinding and polishing efficiency, low grinding and polishing degree and high price. In this case, the resin abrasive disc type grinding disc is developed by the thinking that the grinding disc is designed to imitate a 3-inch or 4-inch soft abrasive disc, and the grinding disc is expanded to 8-10 inches, so that the particle number of the working layer of the grinding disc is more than that of the traditional cutter head grinding disc, and the contact area of the working layer is also higher.
However, in the application process, the abrasive disc type abrasive disc is oversized (8-10 inches), so that the linear speed is high during operation, the flannelette only at the bottom cannot bear the impact force of the plate on the abrasive disc type abrasive disc during operation, and particularly the four sides of the plate are in irregular shapes, if the plate is impacted by flash, the particles on the working layer often crack and fall due to insufficient holding force of the flannelette, and the plate is scratched or falls too much to be used. In view of the above, the present inventors have made intensive studies to solve the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The present utility model aims to solve at least to some extent one of the technical problems in the above-described technology. Therefore, the utility model aims to provide the abrasive disc type abrasive disc, which is characterized in that the base material layer is arranged and is firmly connected with the working layer and the hot-pressed velvet cloth layer, so that the overall strength is improved, and the phenomena of cracking and particle falling are reduced.
In order to achieve the above purpose, the utility model provides a grinding disc type grinding disc, which comprises a working layer made of a mixture of a bonding agent and diamond particles, a base material layer made of a mixture of a bonding agent and silicon carbide, and a hot-pressed fleece layer made of a hot-pressed fleece matrix; the working layer comprises a plurality of grinding blocks; one side surface of the primer layer is fixedly connected with the bottom of each grinding block, the hot-pressed velvet layer is fixedly connected with the other side surface of the primer layer, and the hot-pressed velvet layer, the primer layer and the working layer are integrally formed through die hot pressing.
Further, the side surfaces of the hot-pressed flannelette layers are bonded with the colored flannelette through glue to form bonded flannelette layers.
Further, the thickness of the primer layer is 1mm-3mm.
Further, the grinding blocks sequentially comprise a first grinding block, a second grinding block, a third grinding block and a fourth grinding block from inside to outside, the volume of the first grinding block is smaller than that of the second grinding block, the volume of the second grinding block is smaller than that of the third grinding block, and the volume of the third grinding block is smaller than that of the fourth grinding block.
Further, the number of first grinding blocks is consistent with the number of second grinding blocks, the number of second grinding blocks is consistent with the number of third grinding blocks, and the number of third grinding blocks is consistent with the number of fourth grinding blocks.
Further, each grinding block comprises a first edge block, a second edge block, a third edge block and a fourth edge block, the first edge block, the second edge block, the third edge block and the fourth edge block are connected with each other, and chip flutes are formed among the first edge block, the second edge block, the third edge block and the fourth edge block.
Further, a first annular heat dissipation groove is formed between the first grinding block and the second grinding block; a second annular heat dissipation groove is formed between the second grinding block and the third grinding block; and a third annular heat dissipation groove is formed between the third grinding block and the fourth grinding block.
Further, a first longitudinal chip groove is formed between adjacent first grinding blocks; a second longitudinal chip groove is formed between the adjacent second grinding blocks; a third longitudinal chip removal groove is formed between every two adjacent third grinding blocks; a fourth longitudinal junk slot is formed between adjacent fourth abrasive blocks.
Further, the width of the fourth longitudinal junk slot gradually increases from the slot bottom to the slot opening, the slot bottom width is 2.7mm, and the slot opening width is 5.77mm.
Further, adjacent first grinding blocks are connected through a connecting block, and a fifth longitudinal chip groove is formed in the connecting block.
After the structure is adopted, the abrasive disc type millstone provided by the utility model has at least the following beneficial effects:
firstly, the working layer is made by mixing the bonding agent and the diamond particles, the base material layer is made by mixing the bonding agent and the silicon carbide, and the components of the bonding agent are made of various materials, so that most raw materials of the working layer and the base material layer are consistent, and when the base material layer and the working layer are formed by hot pressing through a die, the bonding strength between the working layer and the base material layer is high, so that the manufactured abrasive disc type grinding disc is high in overall strength, and is not easy to crack.
Secondly, through setting up the bed of material, the thickness of bed of material is thicker for after the abrasive brick fixed connection is on the bed of material of bed of material, the abrasive brick is difficult to separate with the bed of material of bed of material, effectively reduces the phenomenon of falling the grain.
Compared with the prior art, the utility model has the advantages that the primer layer is arranged and is firmly connected with the working layer and the hot-pressed velvet cloth layer, so that the overall strength is improved, and the phenomena of cracking and particle falling are reduced.
Drawings
FIG. 1 is a cross-sectional view of a abrasive disc according to an embodiment of the present utility model;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of a abrasive disc according to an embodiment of the present utility model;
fig. 4 is a partial enlarged view of fig. 3.
Description of the reference numerals
Working layer 1, grinding block 11, first edge block 111, second edge block 112, third edge block 113, fourth edge block 114, chip groove 115, first annular heat dissipation groove 116, second annular heat dissipation groove 117, third annular heat dissipation groove 118, first grinding block 11a, second grinding block 11b, third grinding block 11c, fourth grinding block 11d, first longitudinal chip groove 12, second longitudinal chip groove 13, third longitudinal chip groove 14, fourth longitudinal chip groove 15, connecting block 16, fifth longitudinal chip groove 161, primer layer 2, hot pressed fleece layer 3, and bonded fleece layer 4.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
As shown in fig. 1 to 4, the abrasive disc type abrasive disc of the present utility model comprises a working layer 1 made of a mixture of a binder and diamond particles, a primer layer 2 made of a mixture of a binder and silicon carbide, and a hot pressed fleece layer 3 made of a hot pressed fleece matrix; the working layer 1 comprises a plurality of grinding blocks 11; one side surface of the primer layer 2 is fixedly connected with the bottom of each grinding block 11, the hot-pressed velvet cloth layer 3 is fixedly connected with the other side surface of the primer layer 2, and the hot-pressed velvet cloth layer 3, the primer layer 2 and the working layer 1 are integrally formed through die hot pressing.
Thus, according to the abrasive disc type grinding disc, the working layer 1 is prepared by mixing the bonding agent and the diamond particles, the base material layer 2 is prepared by mixing the bonding agent and the silicon carbide, and the components of the bonding agent are made of various materials, so that most raw materials of the working layer 1 and the base material layer 2 are consistent, the bonding strength between the working layer 1 and the base material layer 2 is high when the base material layer 2 and the working layer 1 are formed by hot pressing through a die, the overall strength of the manufactured abrasive disc type grinding disc is high, and the abrasive disc type grinding disc is not easy to crack. Through setting up bed of primer 2, the thickness of bed of primer 2 is thicker for after the abrasive brick 11 fixed connection is on bed of primer 2, abrasive brick 11 is difficult to separate with bed of primer 2, effectively reduces the grain phenomenon that falls.
The binder in this example may be formed from a mixture of phenolic resin, silicon carbide, alumina, copper clad iron and graphite powder. Specifically, the bonding agent is formed by mixing 30% -35% of phenolic resin, 20% -30% of silicon carbide, 10% -15% of aluminum oxide, 25% -30% of copper-clad iron and 2% -3% of graphite powder. The bonding agent is mixed with 5% -10% of diamond to prepare the working layer 1, the bonding agent is mixed with 5% of silicon carbide to prepare the primer layer 2, so that most of raw materials of the working layer 1 and the primer layer 2 are consistent, the bonding strength between the working layer 1 and the primer layer 2 is extremely high when the primer layer 2 and the working layer 1 are formed by hot pressing through a die, the overall strength is high, and the manufactured abrasive disc type abrasive disc is not easy to crack.
Among the above materials, the price of diamond particles is high, and the price of other materials is low, so that the cost is low after the diamond particles are removed from the primer layer 2. The removed diamond is replaced by silicon carbide, so that the formula of the bottom material is basically consistent with that of the working material, and the diamond can be effectively melted into a whole during hot-pressing sintering, and the bonding strength is high.
Optionally, the side surface of the hot-pressed velvet cloth layer 3 is adhered with colored velvet cloth through glue to form an adhered velvet cloth layer 4, and the adhered velvet cloth layer 4 is arranged, so that the adhesive is firm and safe to use.
Specifically, when the abrasive disc type abrasive disc in the example is manufactured, firstly, the mixed bonding agent and diamond particles are poured into a die, the bonding agent and silicon carbide are poured after the powder is flattened by using a scraping tool, the hot pressed flannelette substrate is put after the powder is flattened by using the scraping tool, finally, the die cover is covered and put into a press for sintering, the sintering temperature is 150-170 ℃, the sintering time is 15-20 minutes, after the hot pressing is finished, the semi-finished product is taken out after demoulding, and finally, the semi-finished product is bonded on the color flannelette by using glue to obtain the finished product.
The thickness of the primer layer 2 in the example is 1mm-3mm, and the particle cracking rate is about 15% after the abrasive disc type abrasive disc works for a period of time when the thickness of the primer layer 2 is 1mm through test; when the thickness of the primer layer 2 is 1.5m, after the abrasive disc type millstone works for a period of time, the cracking and falling rate of particles is about 8 percent; when the thickness of the primer layer 2 is 2mm, after the abrasive disc type millstone works for a period of time, the cracking rate of particles is about 2 percent; when the thickness of the primer layer 2 is 2.5mm, the abrasive disc type abrasive disc basically does not crack and drop particles after the abrasive disc type abrasive disc works for a period of time; when the thickness of the primer layer 2 is 3mm, the abrasive disc type abrasive disc basically does not crack and drop particles after the abrasive disc type abrasive disc works for a period of time, but the primer cost is higher, the product is heavier, and the logistics cost is also high.
In the test, the time of the abrasive disc type millstone working for a period of time is one hour, a plurality of abrasive disc type millstones with different thicknesses of the primer layer 2 are used for testing the same large stone, the rotating speeds in the test are consistent, specifically, the abrasive disc type millstone is arranged on an automatic polishing machine for testing, the rotating speed of a grinding head is 1400rpm/min, the running speed of a granite plate is 3m/min, the applying pressure of a machine table is 4kg/cm < 2 >, 3 millstones are arranged on each time, half (about 5 mm) consumption of a millstone working layer is used as a working standard, the particle damage rate is calculated, and the test result is as above. In summary, the thickness of the primer layer 2 in this example may be 1mm to 2.5mm, and preferably the thickness of the primer layer 2 is 2.5mm, according to circumstances. Of course, the thickness of the primer layer 2 can be 3mm and 3.5mm, which is rather expensive, and cracking and particle removal of the product is undesirable.
Further, the grinding block 11 sequentially comprises a first grinding block 11a, a second grinding block 11b, a third grinding block 11c and a fourth grinding block 11d from inside to outside, wherein the volume of the first grinding block 11a is smaller than that of the second grinding block 11b, the volume of the second grinding block 11b is smaller than that of the third grinding block 11c, and the volume of the third grinding block 11c is smaller than that of the fourth grinding block 11 d. Through setting up the first abrasive brick 11a, the second abrasive brick 11b of volume increase gradually, third abrasive brick 11c and fourth abrasive brick 11d for the junction of first abrasive brick 11a, second abrasive brick 11b, third abrasive brick 11c and fourth abrasive brick 11d and bed of material 2 increases gradually, makes first abrasive brick 11a, second abrasive brick 11b, third abrasive brick 11c and fourth abrasive brick 11d and bed of material 2 joint strength big, and whole difficult fracture falls the grain more.
In some examples, the number of first grinding blocks 11a is consistent with the number of second grinding blocks 11b, the number of second grinding blocks 11b is consistent with the number of third grinding blocks 11c, and the number of third grinding blocks 11c is consistent with the number of fourth grinding blocks 11d, so that the contact area between the abrasive disc type grinding disc and granite waiting grinding object is large, and grinding and polishing are facilitated.
Each of the grinding blocks 11 in this example includes a first edge block 111, a second edge block 112, a third edge block 113, and a fourth edge block 114, the first edge block 111, the second edge block 112, the third edge block 113, and the fourth edge block 114 are connected to each other, and chip pockets 115 are formed between the first edge block 111, the second edge block 112, the third edge block 113, and the fourth edge block 114. Wherein, the height of third prism piece 113 is less than the height of first prism piece 111, second prism piece 112 and fourth prism piece 114, through setting up chip flute 115, when the abrasive disc rotates, chip flute 115 can hold the piece, then along with abrasive disc rotates, the piece of chip flute 115 can be discharged from the chip flute through third prism piece 113.
As an example, a first annular heat dissipation groove 116 is formed between the first grinding block 11a and the second grinding block 11 b; a second annular heat dissipation groove 117 is formed between the second grinding block 11b and the third grinding block 11 c; a third annular heat sink 118 is formed between the third and fourth grinding blocks 11c and 11 d. Through setting up first annular heat dissipation groove 116, second annular heat dissipation groove 117 and third annular heat dissipation groove 118, the heat that produces when can guaranteeing to rub in time gives off, and the high temperature that produces when effectively avoiding friction is to the loss of abrasive disc formula mill to extension abrasive disc formula mill life. Meanwhile, the first annular heat dissipation groove 116, the second annular heat dissipation groove 117 and the third annular heat dissipation groove 118 can improve chip removal efficiency, and chips are prevented from being blocked on the abrasive disc type abrasive disc.
In some examples, first longitudinal flutes 12 are formed between adjacent first grinding blocks 11 a; a second longitudinal junk slot 13 is formed between adjacent second grinding blocks 11 b; a third longitudinal junk slot 14 is formed between adjacent third grinding blocks 11 c; a fourth longitudinal junk slot 15 is formed between adjacent fourth blocks 11 d. By arranging the first longitudinal junk slot 12, the second longitudinal junk slot 13, the third longitudinal junk slot 14 and the fourth longitudinal junk slot 15, generated chips can be timely discharged from the junk slots when the abrasive disc type abrasive disc rotates, and efficiency is improved.
As shown in fig. 3 and fig. 4, the width of the fourth longitudinal junk slot 15 is gradually increased from the slot bottom to the slot opening, the slot bottom width L1 is 2.7mm, and the slot opening width L2 is 5.77mm, so that the whole fourth longitudinal junk slot 15 is larger, and meanwhile, the width of the fourth longitudinal junk slot 15 is gradually increased from the slot bottom to the slot opening, so that timely chip removal is facilitated, and the chip removal efficiency is high.
The first grinding block 11a has a smaller overall size, so that the first grinding block 11a can be effectively and fixedly connected to the primer layer 2, the overall strength is improved, in this example, adjacent first grinding blocks 11a are connected through the connecting block 16, and the fifth longitudinal chip removal groove 161 is formed in the connecting block 16, so that the overall strength of the grinding disc type grinding disc is further improved, and meanwhile, the fifth longitudinal chip removal groove 161 is also convenient for chip removal.
Compared with the prior art, the utility model has the advantages that the primer layer 2 is arranged, and the primer layer 2 is firmly connected with the working layer 1 and the hot-pressed velvet cloth layer 3, so that the integral strength is improved, and the phenomena of cracking and particle falling are reduced.
The above examples and drawings are not intended to limit the form or form of the present utility model, and any suitable variations or modifications thereof by those skilled in the art should be construed as not departing from the scope of the present utility model.
Claims (10)
1. The utility model provides a abrasive disc formula mill which characterized in that: comprises a working layer, a primer layer and a hot-pressed flannelette layer made of a hot-pressed flannelette substrate; the working layer comprises a plurality of grinding blocks; one side surface of the primer layer is fixedly connected with the bottom of each grinding block, the hot-pressed velvet layer is fixedly connected with the other side surface of the primer layer, and the hot-pressed velvet layer, the primer layer and the working layer are integrally formed through die hot pressing.
2. The abrasive disc of claim 1, wherein: the side surfaces of the hot-pressed velvet cloth layers are bonded with the colored velvet cloth through glue to form bonded velvet cloth layers.
3. The abrasive disc of claim 1, wherein: the thickness of the primer layer is 1mm-3mm.
4. The abrasive disc of claim 1, wherein: the grinding blocks sequentially comprise a first grinding block, a second grinding block, a third grinding block and a fourth grinding block from inside to outside, wherein the volume of the first grinding block is smaller than that of the second grinding block, the volume of the second grinding block is smaller than that of the third grinding block, and the volume of the third grinding block is smaller than that of the fourth grinding block.
5. The abrasive disc of claim 4, wherein: the number of the first grinding blocks is consistent with the number of the second grinding blocks, the number of the second grinding blocks is consistent with the number of the third grinding blocks, and the number of the third grinding blocks is consistent with the number of the fourth grinding blocks.
6. The abrasive disc of claim 4, wherein: each grinding block comprises a first edge block, a second edge block, a third edge block and a fourth edge block, wherein the first edge block, the second edge block, the third edge block and the fourth edge block are connected with each other, and chip flutes are formed among the first edge block, the second edge block, the third edge block and the fourth edge block.
7. The abrasive disc of claim 4, wherein: a first annular heat dissipation groove is formed between the first grinding block and the second grinding block; a second annular heat dissipation groove is formed between the second grinding block and the third grinding block; and a third annular heat dissipation groove is formed between the third grinding block and the fourth grinding block.
8. The abrasive disc of claim 4, wherein: a first longitudinal chip removal groove is formed between adjacent first grinding blocks; a second longitudinal chip groove is formed between the adjacent second grinding blocks; a third longitudinal chip removal groove is formed between every two adjacent third grinding blocks; a fourth longitudinal junk slot is formed between adjacent fourth abrasive blocks.
9. The abrasive disc of claim 8, wherein: the width of the fourth longitudinal chip groove is gradually increased from the groove bottom to the groove opening, the groove bottom width is 2.7mm, and the groove opening width is 5.77mm.
10. The abrasive disc of claim 8, wherein: adjacent first grinding blocks are connected through a connecting block, and a fifth longitudinal chip groove is formed in the connecting block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320207239.0U CN220218058U (en) | 2023-02-13 | 2023-02-13 | Abrasive disc type millstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320207239.0U CN220218058U (en) | 2023-02-13 | 2023-02-13 | Abrasive disc type millstone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220218058U true CN220218058U (en) | 2023-12-22 |
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ID=89179917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320207239.0U Active CN220218058U (en) | 2023-02-13 | 2023-02-13 | Abrasive disc type millstone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220218058U (en) |
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2023
- 2023-02-13 CN CN202320207239.0U patent/CN220218058U/en active Active
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