CN106747362B - Ceramic grinding body and preparation method thereof - Google Patents
Ceramic grinding body and preparation method thereof Download PDFInfo
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- CN106747362B CN106747362B CN201710129250.9A CN201710129250A CN106747362B CN 106747362 B CN106747362 B CN 106747362B CN 201710129250 A CN201710129250 A CN 201710129250A CN 106747362 B CN106747362 B CN 106747362B
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- 238000000227 grinding Methods 0.000 title claims abstract description 54
- 239000000919 ceramic Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 15
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 11
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 10
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 7
- ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 claims abstract description 7
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 5
- 239000010436 fluorite Substances 0.000 claims abstract description 5
- 229910001635 magnesium fluoride Inorganic materials 0.000 claims abstract description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 235000017550 sodium carbonate Nutrition 0.000 claims abstract description 5
- FYYHWMGAXLPEAU-OUBTZVSYSA-N magnesium-25 atom Chemical compound [25Mg] FYYHWMGAXLPEAU-OUBTZVSYSA-N 0.000 claims abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000007847 structural defect Effects 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000009837 dry grinding Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 2
- 238000001354 calcination Methods 0.000 description 16
- 238000005299 abrasion Methods 0.000 description 7
- 238000000462 isostatic pressing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000005242 forging Methods 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 235000010755 mineral Nutrition 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000007791 liquid phase Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000005469 granulation Methods 0.000 description 2
- 230000003179 granulation Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- -1 thermal power Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
- C04B2235/445—Fluoride containing anions, e.g. fluosilicate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The invention relates to the technical field of ceramic materials, and particularly relates to a ceramic grinding body which comprises the following raw materials in parts by weight: 70-95 parts of high-alumina bauxite, 6-20 parts of kaolin, 2-10 parts of graphite powder and 1-6 parts of composite low-temperature fluxing agent; the composite auxiliary agent comprises the following components in percentage by mass: 25-30% of elpasolite, 15-25% of fluorite, 15-25% of magnesium fluoride and 25-35% of soda ash. The invention also specifically discloses a preparation method of the ceramic grinding body. The ceramic grinding body prepared by the invention has low internal porosity, few structural defects, good wear resistance, large elastic modulus, high hardness, impact resistance, good toughness, high grinding efficiency and low energy consumption, and is suitable for being used in a dry grinding process.
Description
Technical Field
The invention relates to the technical field of ceramic materials, in particular to a ceramic grinding body and a preparation method thereof.
Background
In the industries of ceramics, cement, thermal power, metallurgy, mines and the like, a ball mill is required for grinding powder in production.
At present, in a dry grinding process, a ball mill is mostly adopted for grinding materials, a grinding body basically adopts steel balls and steel forgings as the grinding body, and due to the fact that the grinding body is high in density and heavy in mass, a high-power motor is needed for operation, so that consumed electric energy is high, energy conservation and emission reduction are not facilitated, and meanwhile, the grinding body made of the material is poor in abrasive resistance. In addition, in the grinding process, the worn iron material can be mixed into the ground product, and the color of the white powder product can be influenced to a certain extent.
In the wet grinding process, there has been a case of grinding ceramic-based materials using a ceramic grinding body instead of steel balls and steel forgings.
However, the existing ceramic grinding body mostly adopts a spray granulation molding process, has large internal porosity, more structural defects, lower strength and poor impact resistance, is easy to peel and break when used in a dry grinding process, causes the reduction of grinding efficiency, and cannot meet the use requirement of dry grinding.
It is clear that the prior art is still in need of further improvement.
Disclosure of Invention
In view of the above, it is desirable to provide a ceramic abrasive body with excellent wear resistance and impact resistance and a method for preparing the same.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ceramic grinding body comprises the following raw materials in parts by weight: 70-95 parts of high-alumina bauxite, 6-20 parts of kaolin, 2-10 parts of graphite powder and 1-6 parts of composite low-temperature fluxing agent;
the composite auxiliary agent comprises the following components in percentage by mass: elpasolite (K)3AlF6) 25-30% of fluorite (CaF)2) 15-25% of magnesium fluoride (MgF)2) 15-25% of sodium carbonate (Na)2CO3)25-35％。
Preferably, the ceramic grinding body comprises the following raw materials in parts by weight: 80 parts of high-alumina bauxite, 11 parts of kaolin, 5 parts of graphite powder and 4 parts of composite low-temperature fluxing agent.
Preferably, the composite auxiliary agent comprises the following components in percentage by mass: elpasolite (K)3AlF6) 30% fluorite (CaF)2) 20% of magnesium fluoride (MgF)2) 20% of soda ash (Na)2CO3)30％。
Preferably, Al in the high-alumina bauxite2O3The mass content of the compound is more than or equal to 90 percent.
A preparation method of a ceramic grinding body comprises the following steps: mixing high-alumina bauxite, kaolin, graphite powder and a composite low-temperature fluxing agent in proportion, grinding until the mixture can pass through a 80-micron square-hole sieve, adding water for pugging until the water content is 8-18%, pressing and forming, sintering at the temperature of 1000-1150 ℃ for 10-20 hours, naturally cooling, and airing to obtain the product.
Preferably, the press forming is isostatic press forming using a mechanical steel die.
Preferably, the steel die isostatic pressure is 200-350 MPa.
Preferably, the isostatic pressure is 320 MPa.
The invention has the beneficial effects that:
the calcination energy consumption of the grinding body prepared by the invention can be reduced by more than 10%.
The ceramic grinding body prepared by the invention has low internal porosity, few structural defects, good wear resistance, large elastic modulus, high hardness, impact resistance, good toughness, high grinding efficiency and low energy consumption, and is suitable for being used in a dry grinding process. The method is suitable for industries such as cement, thermal power, ceramic raw materials, metallurgy, mines and the like, has no adverse effect on the color of the raw materials, and is low in manufacturing cost.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be further clearly and completely described below with reference to the embodiments of the present invention. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When the high-alumina bauxite, kaolin and graphite powder are mixed and sintered, a small amount of silicon carbide and titanium carbide can be generated in the ceramic grinding body, and the silicon carbide has the advantages of small thermal expansion coefficient, good wear resistance, large elastic modulus, high hardness and large bending strength, and is beneficial to increasing the hardness, compactness and crack resistance of the grinding body. The titanium carbide is beneficial to increasing the toughness of the grinding body and changing the crystal structure of the ceramic grinding body. The mechanical steel die is adopted for high-pressure isostatic pressing forming, so that the internal porosity of the ceramic ball can be reduced, the structural defects are reduced, and the compactness and the crack resistance of the grinding body are improved. The composite low-temperature fluxing agent can effectively reduce the eutectic point of ceramic minerals, the temperature is reduced by about 200 ℃, so that mineral liquid phase appears in advance, the calcination temperature of the ceramic is reduced, and the energy consumption is reduced.
Example 1
The ceramic grinding body is prepared from the following raw materials in parts by weight: 70 parts of high-alumina bauxite, 20 parts of kaolin, 8 parts of graphite powder and 2 parts of composite low-temperature fluxing agent are mixed and ground to pass through a 80-micron square-hole sieve, then water is added for pugging (the pugging refers to mud obtained by removing air mixed in pug through beating), the water content of the pug is controlled to be 8% -10%, and the pug is pressed into a round ball or a round forging mould by a mechanical rigid mould under high pressure and isostatic pressure and then is calcined for 12 hours at the temperature of 1100-1200 ℃. The prepared ceramic grinding body has the density of 3.8g/cm3The hardness reaches 9 Mohs hardness, the compressive strength is 305MPa, the abrasion is 0.0006 percent, and the breakage rate is 0.3 percent.
Example 2
The ceramic grinding body is prepared from the following raw materials in parts by weight: mixing 80 parts of high-alumina bauxite, 11 parts of kaolin, 5 parts of graphite powder and 4 parts of composite low-temperature fluxing agent, grinding until the mixture can pass through a 80-micron square-hole sieve, adding water for pugging, and controllingThe water content of the mud making material is 12-14%, and the mud making material is calcined for 16 hours at 1050-1150 ℃ after being pressed into a ball or a round forging shape by a mechanical steel die under high pressure and isostatic pressure. The prepared ceramic grinding body has the density of 3.7g/cm3The hardness reaches 9 Mohs hardness, the compressive strength is 308MPa, the abrasion is 0.0005 percent, and the breakage rate is 0.25 percent.
Example 3
The ceramic grinding body is prepared from the following raw materials in parts by weight: grinding 85 parts of high-alumina bauxite, 6 parts of kaolin, 3 parts of graphite powder and 6 parts of composite low-temperature fluxing agent until the high-alumina bauxite passes through a 80-micron square-hole sieve, adding water for pugging, controlling the water content of pug to be 16-18%, pressing the pug into a round ball or a round forging mould by adopting a mechanical steel mould under high pressure and isostatic pressing, and calcining for 18 hours at the temperature of 1000-1100 ℃. The prepared ceramic grinding body has the density of 3.6g/cm3The hardness reaches 9 Mohs hardness, the compressive strength is 305MPa, the abrasion is 0.0005 percent, and the breakage rate is 0.25 percent.
Example 4 (control group without compounding aid):
the comparative example differs from example 1 in that a ceramic abrasive body was prepared by a spray granulation molding method instead of the mechanical steel die high-pressure isostatic pressing molding method without adding a composite low-temperature flux.
The prepared ceramic grinding body has the density of 3.2g/cm3The hardness reaches 7 grades in Mohs hardness, the compressive strength is 195MPa, the abrasion is 0.0016 percent, and the breakage rate is 0.90 percent.
This embodiment is because calcination temperature is too low, can't provide sufficient liquid phase volume for the firing reaction of ceramic ball can't be thorough, and the ceramic ball is in the state of oweing to burn, and it is loose to fire the mineral structure, and the compactness is not high (density reduces), and the internal porosity of rinding body is great moreover, and structural defect is more, and ceramic ball intensity and wearability all receive different degree influences, and compressive strength reduces, and wearing and tearing increase, and the breakage rate rises.
Example 5
This example differs from example 4 in that calcination was carried out at a temperature of 1300 ℃ to 1400 ℃ for 12 hours. The prepared ceramic grinding body has the density of 3.4g/cm3The hardness reaches 8 grades on Mohs scale, the compressive strength is 270MPa, the abrasion is 0.0010 percent, and the steel is brokenThe loss rate is 0.50 percent.
The embodiment improves the calcining temperature, increases the liquid phase quantity of the ceramic ball calcining, meets the conditions of ion diffusion and calcining reaction, smoothly carries out the calcining reaction, has compact calcining mineral structure, improves the compactness (density is increased), but also has the problems of larger internal porosity of the grinding body and more structural defects, and improves the strength and the wear resistance of the ceramic ball to a certain extent, but also has larger amplitude. The compressive strength is increased, the abrasion is reduced, and the breakage rate is reduced.
Example 6
The difference between this example and example 4 is that after being pressed into round balls or round forged shapes by mechanical steel die in high pressure isostatic pressing, the pellets are calcined at 1300-1400 ℃ for 12 hours.
The prepared ceramic grinding body has the density of 3.6g/cm3The hardness reaches 9 Mohs hardness, the compressive strength is 300MPa, the abrasion is 0.0006 percent, and the breakage rate is 0.30 percent.
The embodiment improves the calcination temperature, increases the liquid phase amount of the ceramic ball calcination, meets the conditions of ion diffusion and calcination reaction, smoothly carries out the calcination reaction, has compact calcination mineral structure and improved compactness (increased density), and can reduce the internal porosity of the ceramic ball, reduce the structural defects and improve the compactness and crack resistance of the grinding body by adopting mechanical steel die high-pressure isostatic pressing. Compared with example 5, the strength and the wear resistance are improved to different degrees.
The technology of the invention adds a certain amount of composite low-temperature fluxing agent in the raw materials, is beneficial to reducing the calcining temperature, adopts mechanical steel die high-pressure isostatic pressing molding, reduces the internal porosity of the ceramic ball, reduces the structural defects, and improves the compactness and crack resistance of the grinding body. The prepared grinding body has the advantages of reducing the breakage rate and the grinding energy consumption, prolonging the bin dumping period of the grinding machine, reducing the operation cost of the grinding machine and effectively prolonging the service life of the grinding body.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. The ceramic grinding body is characterized by comprising the following raw materials in parts by weight: 70-95 parts of high-alumina bauxite, 6-20 parts of kaolin, 2-10 parts of graphite powder and 1-6 parts of composite low-temperature fluxing agent;
the composite auxiliary agent comprises the following components in percentage by mass: 25-30% of elpasolite, 15-25% of fluorite, 15-25% of magnesium fluoride and 25-35% of soda ash.
2. The ceramic grinding body of claim 1, which comprises the following raw materials in parts by weight: 80 parts of high-alumina bauxite, 11 parts of kaolin, 5 parts of graphite powder and 4 parts of composite low-temperature fluxing agent.
3. The ceramic grinding body according to claim 1 or 2, wherein the composite auxiliary agent comprises the following components in percentage by mass: 30% of elpasolite, 20% of fluorite, 20% of magnesium fluoride and 30% of soda ash.
4. Ceramic grinding body according to claim 1 or 2, characterized in that the Al in the high bauxite2O3The mass content of the compound is more than or equal to 90 percent.
5. A method for preparing the ceramic grinding body as claimed in any one of claims 1 to 4, characterized in that the high-alumina bauxite, the kaolin, the graphite powder and the composite low-temperature fluxing agent are mixed according to a certain proportion, ground to be capable of passing through a 80-micron square-hole sieve, then added with water for pugging to ensure that the water content is 8% -18%, pressed and formed, then sintered for 10-20 hours at the temperature of 1000-1150 ℃, naturally cooled and dried to obtain the product.
6. The method for manufacturing a ceramic abrasive according to claim 5, wherein the press-molding is isostatic press-molding using a mechanical steel die.
7. The method as claimed in claim 6, wherein the steel mold has an isostatic pressure of 200-350 MPa.
8. The method for manufacturing a ceramic abrasive body according to claim 7, wherein the isostatic pressure is 320 MPa.
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| CN201710129250.9A CN106747362B (en) | 2017-03-06 | 2017-03-06 | Ceramic grinding body and preparation method thereof |
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| CN201710129250.9A CN106747362B (en) | 2017-03-06 | 2017-03-06 | Ceramic grinding body and preparation method thereof |
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| CN106747362A CN106747362A (en) | 2017-05-31 |
| CN106747362B true CN106747362B (en) | 2020-06-23 |
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| CN201710129250.9A Expired - Fee Related CN106747362B (en) | 2017-03-06 | 2017-03-06 | Ceramic grinding body and preparation method thereof |
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| CN107722934A (en) * | 2017-10-09 | 2018-02-23 | 山东天汇研磨耐磨技术开发有限公司 | A kind of abrasive body and its production method based on the compound of ceramics and metal |
| CN107651944A (en) * | 2017-10-09 | 2018-02-02 | 山东天汇研磨耐磨技术开发有限公司 | A kind of reusable ceramic grinding body |
| CN107651969A (en) * | 2017-10-09 | 2018-02-02 | 山东天汇研磨耐磨技术开发有限公司 | A kind of magnesium alloy ceramic grinding ball and preparation method thereof |
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| JP2003292380A (en) * | 2002-03-29 | 2003-10-15 | Nichias Corp | Heat-resistant setter and manufacturing method therefor |
| US20140021412A1 (en) * | 2012-03-19 | 2014-01-23 | Mitsuishi Taika Renga Kabushiki Kaisha | Brick and brick manufacturing method |
| CN103172353A (en) * | 2013-04-01 | 2013-06-26 | 江苏锡阳研磨科技有限公司 | Method for sintering microcrystalline alumina-toughened ceramic grinding ball |
| CN104649655B (en) * | 2015-02-14 | 2017-06-23 | 济南大学 | A kind of preparation method of the special low-density mill ball of cement grinding mill |
| CN105565784A (en) * | 2015-12-24 | 2016-05-11 | 重庆罗曼新材料科技有限公司 | Ceramic grinding body and preparation method thereof |
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