CN213000341U - Roller structure for high-efficiency grinding ball mill for alumina micropowder - Google Patents
Roller structure for high-efficiency grinding ball mill for alumina micropowder Download PDFInfo
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- CN213000341U CN213000341U CN202021251582.8U CN202021251582U CN213000341U CN 213000341 U CN213000341 U CN 213000341U CN 202021251582 U CN202021251582 U CN 202021251582U CN 213000341 U CN213000341 U CN 213000341U
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- 238000000227 grinding Methods 0.000 title claims abstract description 85
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 125000006850 spacer group Chemical group 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 17
- 229910052573 porcelain Inorganic materials 0.000 claims description 6
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 10
- 244000309464 bull Species 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 18
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000000498 ball milling Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of grinding ball mill equipment and specifically relates to a cylinder structure for high-efficient grinding ball mill of alumina micropowder is related to, it includes, left supporting seat, right branch seat, the left installation department of cylinder, the right installation department of cylinder, cylinder body, bull gear, welt, grinding medium and adjustable cylinder spacing component, cylinder installation bearing I install on left supporting seat and link to each other with left supporting seat through its bearing inner race, adjustable cylinder spacing component can be adjusted the size of this internal first cavity of cylinder according to specific grinding requirement, the grinding effect of the grinding medium in the first cavity of rational distribution and the second cavity makes the grinding effect and the grinding efficiency of alumina in the cylinder reach the optimum level.
Description
Technical Field
The utility model belongs to the technical field of grinding ball mill equipment and specifically relates to a cylinder structure for high-efficient ball mill that grinds of alumina micropowder is related to.
Background
The ball mill is a key device for crushing materials after the materials are crushed, and is composed of a horizontal barrel, a feeding and discharging hollow shaft, a grinding head and the like, wherein the barrel is a long cylinder, a grinding body is arranged in the barrel, the barrel is made of steel plates, a steel lining plate is fixed with the barrel, the grinding body is generally a steel ball and is arranged in the barrel according to different diameters and a certain proportion, the grinding body can also be a steel section and is selected according to the granularity of the grinding materials, the materials are arranged in the barrel through the hollow shaft at the feeding end of the ball mill, when the ball mill barrel rotates, the grinding body is attached to the lining plate of the barrel and is taken away by the barrel due to the action of inertia and centrifugal force, and when the ball mill barrel is taken to a certain height, the grinding body is thrown off due to the action of gravity of the ball mill, and the falling grinding body crushes the materials in. The materials are fed into the first bin of the mill by a feeding device through a hollow shaft, and the bin is internally provided with a stepped lining plate or a corrugated lining plate which is internally provided with steel balls of various specifications, and the steel balls are driven to fall down after being driven to a certain height by the centrifugal force generated by the rotation of a cylinder body, so that the materials are impacted and ground. After the material reaches rough grinding in the first bin, the material enters the second bin through the single-layer bin partition plate, the flat lining plate is inlaid in the bin, the steel ball is arranged in the bin, and the material is further ground. The powder is discharged through the discharging grate plate to finish the grinding operation. In the process of the rotation of the cylinder body, the grinding body also has a slipping phenomenon, the grinding body is used for grinding materials in the slipping process, in order to effectively utilize the grinding effect, when the granularity of the materials is larger, the cylinder body of the grinding body is divided into two sections by a partition plate, so that a double bin is formed, the materials are crushed by steel balls when entering the first bin, the materials are ground by the steel sections when entering the second bin, the ground materials are discharged from a hollow shaft at the discharge end, when the materials with small feeding particles are ground, the cylinder body of the grinding machine can be a single bin cylinder mill without the partition plate, the grinding body can also be used for steel sections, the raw materials enter a hollow cylinder through a hollow shaft neck for grinding, and grinding media (steel balls, steel rods, gravels and the like) with various diameters are filled in the cylinder. When the cylinder rotates around the horizontal axis at a certain rotating speed, the medium and the raw materials in the cylinder reach a certain height along with the cylinder under the action of centrifugal force and friction force, when the gravity of the cylinder is greater than the centrifugal force, the medium and the raw materials are thrown off the inner wall of the cylinder or fall down, the ore is crushed due to impact force, meanwhile, in the rotating process of the mill, the grinding medium performs a grinding action on the raw materials through mutual sliding motion, and the ground materials are discharged through the hollow shaft neck.
The alumina powder is an essential key raw material in industrialization, after being ultra-microminiaturized, the alumina powder has surface layer effect, small-specification effect, quantum effect and macroscopic economy quantum tunnel effect which are not possessed by macroscopic economy blocks, has the excellent characteristics of high toughness, wear resistance, corrosion resistance, heat resistance, oxidation resistance, good dielectric strength and the like, and is generally applied to the levels of refractory materials, biological ceramics, precise ceramics, metal catalysts of chemical plants, semiconductor chips, light source components of airlines and the like at the present stage. The production of alumina micropowder does not leave ball mill equipment, and because the grinding requirement of alumina micropowder is higher, the existing ball mill roller often has the problems of low grinding production efficiency, poor grinding quality effect and consumption of a large amount of energy resources when carrying out ball milling on the alumina micropowder, and can not meet the production and use requirements of enterprises.
Disclosure of Invention
To current ball mill cylinder there is grinding production efficiency low when ball-milling to aluminium oxide miropowder, grind the not good and a large amount of energy resources of consumption of quality effect, can not satisfy the problem of the production and use demand of enterprise, the utility model provides a cylinder structure for ball mill is ground to aluminium oxide miropowder high efficiency, its technical scheme is as follows: a roller structure for an alumina micropowder high-efficiency grinding ball mill comprises a left supporting seat, a right supporting seat, a roller mounting bearing I, a roller mounting bearing II, a roller left mounting part, a roller right mounting part, a roller body, a bull gear ring, a lining plate, a grinding medium and an adjustable roller spacing component, wherein the roller mounting bearing I is mounted on the left supporting seat through a bearing outer ring of the roller mounting bearing I and is connected with the left supporting seat, the roller mounting bearing II is mounted on the right supporting seat through a bearing outer ring of the roller mounting bearing II and is connected with the right supporting seat, the roller left mounting part and the roller right mounting part are respectively mounted at the end parts of the left side and the right side of the roller body and are fixedly connected with the roller body, the roller left mounting part is mounted in an inner ring of the roller mounting bearing I and is connected with the roller mounting bearing I, the roller right mounting part is mounted in an inner, the adjustable roller spacing component is arranged on the roller body and is connected with the roller body, and a grinding medium for grinding raw materials is arranged in the roller body.
The adjustable roller spacing component separates the interior of the roller body into a first cavity, a second cavity and a third cavity.
The grinding medium is placed in the first cavity and the second cavity in the roller body.
The grinding medium is 92 alumina ceramic balls.
The lining plate is a 92 alumina porcelain lining.
The grinding medium in the first cavity is 92 alumina ceramic balls with the diameter larger than 20 mm.
The grinding medium in the second cavity is 92 alumina ceramic balls with the diameter less than 10 mm.
The adjustable roller spacing component is used for partitioning and selecting types of raw materials in the roller body and mainly comprises a first spacing net, a first spacing net mounting seat, a second spacing net mounting seat, a rotary bearing, an adjusting driving rod and an adjusting hand wheel, the first spacing net is arranged on the first spacing net mounting seat, the second spacing net is arranged on the second spacing net mounting seat, the first spacer mesh mounting seat and the second spacer mesh mounting seat are provided with rotating bearings, the adjusting driving rod is arranged on the rotating bearings and connected with the rotating bearings, the adjusting driving rod is provided with threads, the roller body is provided with a threaded hole for installing the adjusting driving rod, the adjusting driving rod is arranged at the threaded hole part on the roller body and is connected with the roller body through threads, the adjusting hand wheel is arranged at the end part of the outer side of the adjusting driving rod and is fixedly connected with the adjusting driving rod.
The mesh size of the first spacing net is 4-6mm, and the mesh size of the second spacing net is 2-4 mm.
And an overhaul hatch door is arranged on the roller body.
The beneficial effects of the utility model are that, the utility model discloses overall structure designs the science, and the installation is used easy operation and is convenient, the utility model discloses mainly the installation through adjustable cylinder interval component sets up and makes the utility model discloses can carry out scientific and reasonable's wall to this internal space of cylinder to carry out laying of reasonable grinding medium according to the user demand in the cavity after cutting off, thereby carry out the structural layout that becomes more meticulous to the cylinder local, meanwhile, adjustable cylinder interval component can also adjust the size of this internal first cavity of cylinder according to specific grinding requirement, the grinding effect of the grinding medium in rational distribution first cavity and the second cavity makes the grinding effect and the grinding efficiency of aluminium oxide in the cylinder reach the optimum level.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of an adjustable roller spacing member according to the present invention;
FIG. 3 is a schematic view of the first spacer grid of the present invention;
FIG. 4 is a schematic structural view of a second spacer net according to the present invention;
FIG. 5 is a schematic structural view of the present invention during installation and use;
the reference numbers in the figures are: 1-left supporting seat, 2-right supporting seat, 3-roller mounting bearing I, 4-roller mounting bearing II, 5-roller left mounting part, 6-roller right mounting part, 7-roller body, 8-large gear ring, 9-lining plate, 10-grinding medium, 11-adjustable roller spacing component, 12-first cavity, 13-second cavity, 14-third cavity, 15-first spacing net, 16-first spacing net mounting seat, 17-second spacing net, 18-second spacing net mounting seat, 19-rotating bearing, 20-adjusting driving rod, 21-adjusting hand wheel, 22-threaded hole, 23-maintenance cabin door, 24-feeding port, 25-discharging port, 26-dust remover, 27-finished product cabin, 28-raw material bin.
Detailed Description
Specific example 1: the core of the utility model is to provide a cylinder structure for high-efficient ball mill that grinds of alumina micropowder, its installation setting mainly through adjustable cylinder interval component 11 makes the utility model discloses can carry out scientific and reasonable's wall to the space in the cylinder body 7 to carry out laying of reasonable grinding medium 10 according to the user demand in the cavity after cutting off, thereby carry out the structural layout who becomes more meticulous to the cylinder body 7, understand for making the personnel in this technical field understand better the utility model discloses a technical scheme, it is right with concrete embodiment mode to combine the description drawing below the utility model discloses do further detailed description, what need explain, be called as "being fixed in" or "setting up in" another component when the component, it can be directly or indirectly on another component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientation are used with reference to a particular structure shown in the drawings, and do not constitute a limitation on the structure. As shown in the attached figures 1-5 of the specification, a roller structure for an alumina micropowder high-efficiency grinding ball mill mainly comprises a left supporting seat 1, a right supporting seat 2, a roller mounting bearing I3, a roller mounting bearing II4, a roller left mounting part 5, a roller right mounting part 6, a roller body 7, a large gear ring 8, a lining plate 9, grinding media 10 and an adjustable roller spacing component 11, wherein the roller mounting bearing I3 for mounting the roller left mounting part 2 is mounted on the left supporting seat 1 through the bearing outer ring thereof, the roller mounting bearing II4 for mounting the roller right mounting part 6 is mounted on the right supporting seat 2 through the bearing outer ring thereof, the roller left mounting part 5 and the roller right mounting part 6 for supporting the roller body 7 are respectively and fixedly mounted at the left and right side end parts of the roller body 7, the left roller mounting part 5 is mounted in the inner ring of the roller mounting bearing I3, the right roller mounting part 6 is mounted in an inner ring of a roller mounting bearing II4, a bull gear 8 for driving a roller to rotate is fixedly mounted on the peripheral wall of the outer part of a roller body 7, a lining plate 9 for grinding raw materials in the roller body 7 is fixedly mounted on the inner wall of the roller body 7, an adjustable roller spacing member 11 for separating the interior of the roller body 7 is mounted in the roller body 7 to separate the interior of the roller body 7 into a first cavity 12, a second cavity 13 and a third cavity 14, grinding media 10 are placed in the first cavity 12 and the second cavity 13 in the roller body 7, the grinding media 10 adopt 92 alumina ceramic balls, the lining plate 9 for grinding adopts a 92 alumina ceramic lining, the grinding media in the first cavity 12 are 92 alumina ceramic balls with the diameter larger than 20mm, the grinding media 10 in the second cavity 13 are 92 alumina ceramic balls with the diameter smaller than 10mm, the adjustable roller spacing member 11 is used for separating and selecting raw materials in the roller body 7, the device mainly comprises a first spacer screen 15, a first spacer screen mounting seat 16, a second spacer screen 17, a second spacer screen mounting seat 18, a rotating bearing 19, an adjusting driving rod 20 and an adjusting hand wheel 21, wherein the first spacer screen 15 for separating a first cavity 121 and a second cavity 13 is mounted on the first spacer screen mounting seat 16, the second spacer screen 17 for separating the second cavity 13 and a third cavity 14 is mounted on the second spacer screen mounting seat 18, the first spacer screen mounting seat 16 and the second spacer screen mounting seat 18 are provided with the rotating bearing 19 for mounting the adjusting driving rod 20, the adjusting driving rod 20 is mounted on the rotating bearing 19 and connected with the rotating bearing 19, the adjusting driving rod 20 is provided with threads, the roller body 7 is provided with a threaded hole 22 for mounting the adjusting driving rod 20, the adjusting driving rod 20 is mounted at the threaded hole 22 position on the roller body 7 and connected with the roller body 7 through the threads, when the structure of the utility model is used, firstly, the adjustable roller spacing component 11 is installed in the roller body 7 and separates the roller body 7 into a first cavity 12, a second cavity 13 and a third cavity 14 through the first spacing net 15 and the second spacing net 17, 92 alumina porcelain balls with the diameter larger than 20mm can be put in the first cavity 12 through the maintenance hatch door 23, 92 alumina porcelain balls with the diameter smaller than 10mm can be put in the second cavity 13 through the maintenance hatch door 23, the first cavity 12 and the second cavity 13 are separated through the first spacing net 15 with the mesh size of 4-6mm, the second cavity 13 and the third cavity 14 are separated through the second spacing net 17 with the mesh size of 2-4mm, at this moment, the first cavity 12 can grind the raw materials for the first time, the second cavity 13 can grind the raw materials for the second time, the second cavity 13 can collect and discharge the ground materials of the second cavity 13 from the right drum installation part 6, according to the grinding condition of the raw materials, when the space of the first cavity 12 needs to be enlarged, an operator can rotate the adjusting hand wheel 21 clockwise to drive the adjusting driving rod 20 to rotate in the threaded hole 22 on the drum body 7, at this moment, under the action of the thread pushing force, the adjusting driving rod 20 moves rightwards relative to the threaded hole 22, at this moment, the adjusting driving rod 20 drives the first spacer grid installation seat 16 and the second spacer grid installation seat 18 to move rightwards in the drum body 7, at this moment, the volume space of the first cavity 12 is enlarged, according to the grinding condition of the raw materials, when the space of the first cavity 12 needs to be reduced, the operator can rotate the adjusting hand wheel 21 in a reversible way to drive the adjusting hand wheel 21 to drive the adjusting driving the threaded hole The internal rotation, this moment, under the effect of screw thread impetus, adjust and drive pole 20 and move left for screw hole 22, this moment, adjust and drive pole 20 and drive first spacer net mount pad 16 and second spacer net mount pad 18 and move left in cylinder body 7, this moment, first cavity 12 volume space diminishes, consequently, the utility model discloses can carry out the structural layout that becomes more meticulous to cylinder local 7, can also adjust the size of first cavity 12 in cylinder body 7 according to specific grinding requirement, the grinding effect of the grinding medium 10 in the first cavity 12 of rational distribution (first cavity 12 space size difference can lead to grinding medium 10 to the grinding effect difference of raw materials), make the grinding effect and the grinding efficiency of aluminium oxide in the cylinder reach the optimum level. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (10)
1. A roller structure for an alumina micropowder high-efficiency grinding ball mill is characterized by comprising a left supporting seat, a right supporting seat, a roller mounting bearing I, a roller mounting bearing II, a roller left mounting part, a roller right mounting part, a roller body, a large gear ring, a lining plate, a grinding medium and an adjustable roller spacing component, wherein the roller mounting bearing I is mounted on the left supporting seat through a bearing outer ring of the roller mounting bearing I and is connected with the left supporting seat, the roller mounting bearing II is mounted on the right supporting seat through the bearing outer ring of the roller mounting bearing II and is connected with the right supporting seat, the roller left mounting part and the roller right mounting part are respectively mounted at the end parts of the left side and the right side of the roller body and are fixedly connected with the roller body, the roller left mounting part is mounted in an inner ring of the roller mounting bearing I and is connected with the roller mounting bearing I, the roller right mounting part is mounted in the inner, the adjustable roller spacing component is arranged on the roller body and is connected with the roller body, and a grinding medium for grinding raw materials is arranged in the roller body.
2. The roller structure for the alumina micropowder high-efficiency grinding ball mill as claimed in claim 1, characterized in that the adjustable roller spacing member spaces the interior of the roller body into a first cavity, a second cavity and a third cavity.
3. The roller structure for the alumina micropowder high-efficiency grinding ball mill as claimed in claim 1, characterized in that the grinding media are placed in a first cavity and a second cavity in the roller body.
4. The roller structure for the alumina micropowder high-efficiency grinding ball mill of claim 1, characterized in that the grinding medium is 92 alumina porcelain balls.
5. The roller structure for the alumina micropowder high-efficiency grinding ball mill as claimed in claim 1, wherein the lining plate is a 92 alumina porcelain lining.
6. The roller structure for the alumina micropowder high-efficiency grinding ball mill of claim 2, characterized in that the grinding medium in the first cavity is 92 alumina porcelain balls with the diameter of more than 20 mm.
7. The roller structure for the alumina micropowder high-efficiency grinding ball mill of claim 2, characterized in that the grinding medium in the second cavity is 92 alumina ceramic balls with the diameter less than 10 mm.
8. The roller structure of claim 1, wherein the adjustable roller spacing member is used for partitioning and selecting raw materials in the roller body, and the roller spacing member mainly comprises a first spacer, a first spacer mounting seat, a second spacer mounting seat, a rotary bearing, an adjusting driving rod and an adjusting hand wheel, wherein the first spacer is mounted on the first spacer mounting seat, the second spacer is mounted on the second spacer mounting seat, the first spacer mounting seat and the second spacer mounting seat are provided with rotary bearings, the adjusting driving rod is mounted on the rotary bearing and connected with the rotary bearing, the adjusting driving rod is provided with threads, the roller body is provided with threaded holes for mounting the adjusting driving rod, and the adjusting driving rod is mounted at the threaded hole of the roller body and connected with the roller body through threads And the adjusting hand wheel is arranged at the end part of the outer side of the adjusting driving rod and is fixedly connected with the adjusting driving rod.
9. The roller structure for the alumina micropowder high-efficiency grinding ball mill according to claim 8, characterized in that the mesh size of the first spacing net is 4-6mm, and the mesh size of the second spacing net is 2-4 mm.
10. The roller structure for the alumina micropowder high-efficiency grinding ball mill of claim 8, characterized in that the roller body is provided with an access door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251582.8U CN213000341U (en) | 2020-07-01 | 2020-07-01 | Roller structure for high-efficiency grinding ball mill for alumina micropowder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251582.8U CN213000341U (en) | 2020-07-01 | 2020-07-01 | Roller structure for high-efficiency grinding ball mill for alumina micropowder |
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| Publication Number | Publication Date |
|---|---|
| CN213000341U true CN213000341U (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021251582.8U Active CN213000341U (en) | 2020-07-01 | 2020-07-01 | Roller structure for high-efficiency grinding ball mill for alumina micropowder |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114471847A (en) * | 2021-12-20 | 2022-05-13 | 江苏中腾石英材料科技股份有限公司 | Quartz powder grinding device convenient to ejection of compact |
| CN115228562A (en) * | 2022-06-30 | 2022-10-25 | 江苏中腾石英材料科技股份有限公司 | Grinding device for manufacturing high-precision quartz powder |
| CN116273828A (en) * | 2023-05-26 | 2023-06-23 | 吉林农业科技学院 | Product grading plant is used in biomass material processing |
| CN119488972A (en) * | 2025-01-20 | 2025-02-21 | 宝钛特种金属有限公司 | A ball milling device for preparing intermediate alloy |
| CN120094692B (en) * | 2025-04-15 | 2025-11-25 | 深圳市臻金新瓷电子材料科技有限公司 | Apparatus and method for preparing black alumina ceramic substrates with high mechanical strength and breakdown strength |
-
2020
- 2020-07-01 CN CN202021251582.8U patent/CN213000341U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114471847A (en) * | 2021-12-20 | 2022-05-13 | 江苏中腾石英材料科技股份有限公司 | Quartz powder grinding device convenient to ejection of compact |
| CN114471847B (en) * | 2021-12-20 | 2023-11-24 | 江苏中腾石英材料科技股份有限公司 | Quartz powder grinder convenient to ejection of compact |
| CN115228562A (en) * | 2022-06-30 | 2022-10-25 | 江苏中腾石英材料科技股份有限公司 | Grinding device for manufacturing high-precision quartz powder |
| CN115228562B (en) * | 2022-06-30 | 2024-02-06 | 江苏中腾石英材料科技股份有限公司 | Grinding device for manufacturing high-precision quartz powder |
| CN116273828A (en) * | 2023-05-26 | 2023-06-23 | 吉林农业科技学院 | Product grading plant is used in biomass material processing |
| CN119488972A (en) * | 2025-01-20 | 2025-02-21 | 宝钛特种金属有限公司 | A ball milling device for preparing intermediate alloy |
| CN119488972B (en) * | 2025-01-20 | 2025-03-28 | 宝钛特种金属有限公司 | Ball milling processing device for intermediate alloy preparation |
| CN120094692B (en) * | 2025-04-15 | 2025-11-25 | 深圳市臻金新瓷电子材料科技有限公司 | Apparatus and method for preparing black alumina ceramic substrates with high mechanical strength and breakdown strength |
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