CN117773790A - Preparation method of degradable pollution-free grinding wheel - Google Patents
Preparation method of degradable pollution-free grinding wheel Download PDFInfo
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- CN117773790A CN117773790A CN202410036733.4A CN202410036733A CN117773790A CN 117773790 A CN117773790 A CN 117773790A CN 202410036733 A CN202410036733 A CN 202410036733A CN 117773790 A CN117773790 A CN 117773790A
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- grinding wheel
- urea
- abrasive
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- 238000000227 grinding Methods 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000004202 carbamide Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000919 ceramic Substances 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000000080 wetting agent Substances 0.000 claims abstract description 18
- 229920001353 Dextrin Polymers 0.000 claims abstract description 15
- 239000004375 Dextrin Substances 0.000 claims abstract description 15
- 235000019425 dextrin Nutrition 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000010304 firing Methods 0.000 claims abstract description 7
- 238000007873 sieving Methods 0.000 claims abstract description 7
- 239000002985 plastic film Substances 0.000 claims abstract description 5
- 229920006255 plastic film Polymers 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 229910052593 corundum Inorganic materials 0.000 claims description 11
- 239000010431 corundum Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- XMKLTEGSALONPH-UHFFFAOYSA-N 1,2,4,5-tetrazinane-3,6-dione Chemical compound O=C1NNC(=O)NN1 XMKLTEGSALONPH-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 claims description 2
- KQVLODRFGIKJHZ-UHFFFAOYSA-N methylenediurea Chemical compound NC(=O)NCNC(N)=O KQVLODRFGIKJHZ-UHFFFAOYSA-N 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 239000012798 spherical particle Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000011148 porous material Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 241000758789 Juglans Species 0.000 description 3
- 235000009496 Juglans regia Nutrition 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 235000020234 walnut Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229940065472 octyl acrylate Drugs 0.000 description 1
- ANISOHQJBAQUQP-UHFFFAOYSA-N octyl prop-2-enoate Chemical compound CCCCCCCCOC(=O)C=C ANISOHQJBAQUQP-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention provides a preparation method of a degradable pollution-free grinding wheel, which comprises the following steps: spraying a wetting agent on an abrasive, stirring, adding a ceramic bond and dextrin powder, uniformly stirring, adding urea after uniformly stirring, uniformly stirring to obtain a primary mixed material, sieving the primary mixed material through a No. 12-20 screen, uniformly stirring to obtain a mixed material, placing the mixed material in a container, covering the mixed material with a plastic film, placing the plastic film in a room temperature environment, standing for 24-48 hours, placing the smolder material in a standard grinding tool for pressing, preserving heat in a dry temperature furnace after pressing, heating to 5 ℃ per hour for drying, firing the dried grinding wheel, and naturally cooling to room temperature to obtain a grinding tool finished product. According to the preparation method of the degradable pollution-free grinding wheel, the urea is added, so that the air holes on the surface of the formed grinding wheel are continuous and uniform, and the degradable pollution-free grinding wheel has the characteristics of burn prevention, high durability, sharp grinding and the like.
Description
Technical Field
The invention relates to the technical field of pore-forming agent production, in particular to a preparation method of a degradable pollution-free grinding wheel.
Background
The grinding wheel is also called a bonded grinding tool, and the grinding wheel is a bonded grinding tool which is formed by bonding common grinding materials into a certain shape (most of the grinding wheels are round, and a through hole is formed in the center) and has certain strength. It is generally composed of abrasive, binder and air holes, which are commonly referred to as the three elements of bonded abrasive tools. The grinding wheel is one of the grinding tools with the largest dosage and the widest use surface, and can rotate at high speed during use, and can perform rough grinding, semi-finish grinding, slotting, cutting and the like on the outer circle, the inner circle, the plane, various molded surfaces and the like of metal or nonmetal workpieces. The air holes of the grinding wheel play an important role in the working process of the grinding wheel, and have positive effects on improving the performance and the grinding efficiency of the grinding wheel, and the air holes on the grinding wheel are formed by adding a pore-forming agent in the manufacturing process. The common pore-forming agent comprises sawdust, walnut shell powder, carbon particles and the like, and the other common pore-forming agent is refined naphthalene.
The pore-forming agent used by the existing grinding wheel also has the following problems:
1. the air holes on the surface of the grinding wheel produced by using pore formers such as sawdust, walnut shell powder and carbon particles are poor in uniformity and discontinuous, abrasive particles on the surface of the grinding wheel are uneven in distribution due to the non-uniformity of the air holes, so that the grinding efficiency is unstable, the quick and slow grinding speed can be generated, the grinding surface quality of a workpiece is influenced, some scratches or uneven places on the surface of the workpiece are caused, the quality of the workpiece is influenced, the air permeability of the grinding wheel is poor due to the non-uniformity of the air holes, the retention of grinding fluid and the blockage of the grinding wheel are easily caused, the grinding efficiency is not only influenced, the service life of the grinding wheel is shortened, the circulation of air is also influenced, the heat dissipation effect is poor, and therefore the workpiece is burnt.
2. The other refined naphthalene used in the production of the grinding wheel mainly aims at pore-forming by sublimating, volatilizing or decomposing substances in the combustion process, and the pore-forming effect of naphthalene is good, but the substances generated by volatilizing and decomposing the refined naphthalene have strong pungent smell, have certain harm to the environment and human health and are not easy to degrade by the environment.
The Chinese patent with the publication number of CN109333382A discloses a chipping-resistant resin grinding wheel, which is prepared from raw materials including white steel jade grinding materials, cryolite, clay powder, phenolic resin, polytetrafluoroethylene, boron nitride, naphthalene particles, rosin resin, octyl acrylate, hydroxyethyl acrylate and auxiliary materials.
In order to solve the problems, a preparation method of the degradable pollution-free grinding wheel needs to be developed, and the problems are solved.
Disclosure of Invention
Aiming at the above situation, to overcome the defects of the prior art;
the invention provides a preparation method of a degradable pollution-free grinding wheel, which comprises, by mass, 50% -95% of grinding materials, 8% -30% of ceramic bond and 5% -20% of wetting agents;
the preparation method of the degradable pollution-free grinding wheel comprises the following steps:
(1) And (3) batching: spraying the wetting agent on the abrasive, stirring for 5-20min, adding the ceramic bond and the dextrin powder, uniformly stirring for 10-15min, adding urea after uniformly stirring, and uniformly stirring for 5-15min to obtain a primary mixed material;
(2) Sieving: sieving the primary mixed material with a No. 12-20 screen, and uniformly stirring for 10-30min to obtain a mixed material;
(3) And (3) material blocking: placing the mixture into a container, covering with a plastic film, placing in a room temperature environment of 18-26 ℃, and standing for 24-48 hours;
(4) And (3) forming: pressing the above-mentioned choke plug material in a standard grinding tool at 7.5-25Mpa, after pressing, insulating at 130-140 deg.C for 4-8 hr in a dry temperature furnace, heating at 5 deg.C every hr and drying;
(5) Firing: and (3) firing the dried grinding wheel at 1050-1260 ℃ for 4-8 hours, and naturally cooling to room temperature to obtain a finished product of the grinding tool.
Preferably, the abrasive is one or more of white corundum, brown corundum, single crystal corundum, chrome corundum, and ceramic corundum, and the particle size range of the abrasive is 60# -150#.
Preferably, the wetting agent is prepared by uniformly mixing 25% of water with 75% of dextrin or water glass.
Preferably, the dextrin powder in the step (1) is added in an amount of 1.5-3% of the total mass of the abrasive, the ceramic bond and the wetting agent.
Preferably, the addition amount of urea in the step (1) is 20% -120% of the total mass of the abrasive, the ceramic bond and the wetting agent, the urea is one or more of agricultural urea, vehicle urea, off-the-shelf urea and industrial urea, and the urea particles have spherical particles with the diameters of 0.85-2.75 mm.
Preferably, the urea has a nitrogen content of 46% -46.4%, wherein the lock diurea content is 0.9% -1.5%, the moisture content is 0.4% -1.0%, and the methylene diurea content is 0.6%.
Preferably, the pressing time of the abrasive in the step (4) is 10 to 30 seconds.
Compared with the prior art, the invention provides a preparation method of the degradable pollution-free grinding wheel, which has the following beneficial effects:
1. the pore forming agent with the urea serving as the component is used, the pores on the surface of the formed grinding wheel are continuous and uniform, the grinding temperature of the grinding wheel can be reduced, the thermal damage of the grinding wheel can be reduced, and the blocking condition of the grinding wheel can be reduced, so that the service life of the grinding wheel is prolonged, the manufactured grinding wheel has the characteristics of burn prevention, high durability, sharp grinding and the like, the defect that the pore uniformity on the surface of the grinding wheel produced by using pore forming agents such as sawdust, walnut shell powder and carbon particles is poor and the like is avoided, the discontinuous condition is avoided, the use of refined naphthalene serving as the pore forming agent is avoided, and the grinding wheel has strong pungent smell and has certain harm to the environment and the human health and is not easy to be degraded by the environment.
2. The urea is adopted as the pore-forming agent of the grinding wheel, the cavity on the surface of the manufactured grinding wheel is uniformly distributed, the urea is low in price, the energy waste is reduced, the waste grinding wheel is nontoxic and non-volatile to human bodies and is easy to degrade by the environment, and the waste grinding wheel cannot cause great harm to the environment after being used, because elements such as nitrogen, carbon and the like in the urea can promote the growth and development of plants, the soil environment is improved, ammonia in the urea can be decomposed by acid or alkali in the soil under the action of microorganisms, and finally is converted into harmless substances, so that the environment cannot be polluted.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
the abrasive is 9 parts of 80# white corundum;
10 parts of ceramic bond;
the addition amount of the wetting agent is 3% of the total mass of the abrasive and the ceramic bond;
the dextrin powder is 2% of the total mass of the abrasive, the ceramic bond and the wetting agent;
the addition amount of urea is 60% of the total mass of the abrasive, the ceramic bond, the wetting agent and the dextrin powder, and the particle size is 1.0-1.8 mm.
The manufacturing process comprises the following steps:
(1) And (3) batching: spraying a wetting agent on the abrasive, stirring for 5min, adding a ceramic bond and dextrin powder, uniformly stirring for 10min, adding urea after uniformly stirring, and uniformly stirring for 5min to obtain a primary mixed material;
(2) Sieving: sieving the primary mixed material through a No. 12 screen, and uniformly stirring for 15min to obtain a mixed material;
(3) And (3) material blocking: placing the mixture into a container, covering with a plastic film, placing in a room temperature environment at 23 ℃, and standing for 24 hours;
(4) And (3) forming: placing the above-mentioned choke plug into a standard grinding tool, pressing at 7.5Mpa for 15 seconds, then heat-insulating at 130 deg.C for 4 hr in a dry-temperature furnace, heating at 5 deg.C every hr and drying;
(5) Firing: and (3) firing the dried grinding wheel at 1060 ℃ for 4 hours, and naturally cooling to room temperature to obtain a finished product of the grinding tool.
Example 2:
the addition amount of urea is 120% of the total mass of the abrasive, the ceramic bond, the wetting agent and the dextrin powder.
Example 2 was different from example 1 in that the amount of urea added was increased to 120%, the proportions of the remaining components were kept the same as in example 1, and the procedure of the production process was also kept the same as in example 1.
Example 3:
the addition amount of urea is 150% of the total mass of the abrasive, the ceramic bond, the wetting agent and the dextrin powder.
Example 3 was different from example 1 in that the amount of urea added was increased to 150%, the proportions of the remaining components were kept the same as in example 1, and the procedure of the production process was also kept the same as in example 1.
Comparative example:
the addition of urea is canceled, and common sawdust is added, wherein the addition amount of the sawdust is 60% of the total mass of the abrasive, the ceramic bond, the wetting agent and the dextrin powder.
The comparative example was different from example 1 in that the urea addition was omitted and replaced with a common sawdust of the same quality, the proportions of the remaining components were kept the same as in example 1, and the steps of the production process were also kept the same as in example 1.
Under the same procedure, the specifications of 60% urea added in example 1, 120% urea added in example 2, 150% urea added in example 3 and urea not added in comparative example, burn prevention temperature, life and grinding ratio were compared as follows:
from the above table, it is clear that the grinding wheels produced in example 1, example 2 and example 3 are added with urea, and the addition amount of urea is sequentially increased, so that the life and the abrasion ratio of the grinding wheel and the grinding wheel manufactured by the method are also sequentially improved, and the addition amount of urea is 150% better than those of other grinding wheels, and meanwhile, the burn temperature is prevented from being slightly improved, and the life and the abrasion ratio of the grinding wheel manufactured by not adding urea are not as good as those of the grinding wheel added with urea.
Therefore, the urea is used as the pore-forming agent of the grinding tool, the service life and the grinding ratio of the grinding wheel can be increased, a certain amount of burn prevention temperature can be improved, the produced air holes on the grinding wheel are uniform and continuous, the urea is used as the pore-forming agent, the urea can be degraded by the environment, and the pollution to the environment is reduced.
Claims (7)
1. The preparation method of the degradable pollution-free grinding wheel is characterized by comprising, by mass, 65% -95% of grinding materials, 8% -30% of ceramic bond and 0.2% -5% of wetting agents;
the preparation method of the degradable pollution-free grinding wheel comprises the following steps:
(1) And (3) batching: spraying the wetting agent on the abrasive, stirring for 5-20min, adding the ceramic bond and the dextrin powder, uniformly stirring for 10-15min, adding urea after uniformly stirring, and uniformly stirring for 5-15min to obtain a primary mixed material;
(2) Sieving: sieving the primary mixed material with a No. 12-20 screen, and uniformly stirring for 10-30min to obtain a mixed material;
(3) And (3) material blocking: placing the mixture into a container, covering with a plastic film, placing in a room temperature environment of 18-26 ℃, and standing for 24-48 hours;
(4) And (3) forming: pressing the above-mentioned choke plug material in a standard grinding tool at 7.5-25Mpa, placing it in a dry temperature furnace, holding at 130-140 deg.C for 4-8 hr, heating at 5 deg.C every hr and drying;
(5) Firing: and (3) firing the dried grinding wheel at 1050-1260 ℃ for 4-8 hours, and naturally cooling to room temperature to obtain a finished product of the grinding tool.
2. The method for preparing the degradable pollution-free grinding wheel according to claim 1, wherein the abrasive is one or more of white corundum, brown corundum, single crystal corundum, chrome corundum and ceramic corundum, and the particle size range of the abrasive is 60# -150#.
3. The method for preparing the degradable pollution-free grinding wheel according to claim 1, wherein the ceramic bond is prepared by uniformly mixing 56% of clay and 44% of feldspar powder, and the wetting agent is prepared by uniformly mixing 25% of water with 75% of dextrin or water glass.
4. The method for preparing the degradable pollution-free grinding wheel according to claim 1, wherein the adding amount of the dextrin powder in the step (1) is 1.5-3% of the total mass of the grinding material, the ceramic bond and the wetting agent, and the particle size of the dextrin powder is 300 meshes.
5. The method for preparing the degradable pollution-free grinding wheel according to claim 1, wherein the addition amount of urea in the step (1) is 20% -200% of the total mass of abrasive, ceramic bond, wetting agent and dextrin powder, the urea is one or more of agricultural urea, vehicle urea, off-line urea and industrial urea, and the urea particles have spherical particles with the diameters of 0.85-2.75 mm.
6. The method of claim 5, wherein the urea has a nitrogen content of 46% -46.4%, wherein the lock diurea has a moisture content of 0.9% -1.5%, and the methylene diurea has a moisture content of 0.4% -1.0%.
7. The method of producing a degradable pollution-free grinding wheel according to claim 1, wherein the pressing time of the abrasive in the step (4) is 10 to 30 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410036733.4A CN117773790A (en) | 2024-01-10 | 2024-01-10 | Preparation method of degradable pollution-free grinding wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410036733.4A CN117773790A (en) | 2024-01-10 | 2024-01-10 | Preparation method of degradable pollution-free grinding wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117773790A true CN117773790A (en) | 2024-03-29 |
Family
ID=90401651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410036733.4A Pending CN117773790A (en) | 2024-01-10 | 2024-01-10 | Preparation method of degradable pollution-free grinding wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117773790A (en) |
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- 2024-01-10 CN CN202410036733.4A patent/CN117773790A/en active Pending
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