CN214925578U - A beryllium oxide ceramic column cold isostatic pressing mold - Google Patents
A beryllium oxide ceramic column cold isostatic pressing mold Download PDFInfo
- Publication number
- CN214925578U CN214925578U CN202023309866.0U CN202023309866U CN214925578U CN 214925578 U CN214925578 U CN 214925578U CN 202023309866 U CN202023309866 U CN 202023309866U CN 214925578 U CN214925578 U CN 214925578U
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- China
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- oxide ceramic
- beryllium oxide
- top plate
- isostatic pressing
- cold isostatic
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Abstract
本实用新型公开了一种氧化铍陶瓷柱冷等静压模具，包括外模、设置在所述外模内的内模壁、设置在所述内模的内壁上的橡胶模、上顶板和下顶板，所述外模与所述内模壁之间设置有腔体，所述内模壁上设置有多个通孔，所述通孔连接所述腔体，所述内膜壁与所述橡胶模之间设置有与所述内模壁固定连接的支撑层。本实用新型能够提高氧化铍陶瓷柱的直径精确度，较少后续的修正量，提高生产效率，增加氧化铍陶瓷的品质。
The utility model discloses a beryllium oxide ceramic column cold isostatic pressing mould, which comprises an outer mould, an inner mould wall arranged in the outer mould, a rubber mould arranged on the inner wall of the inner mould, an upper top plate and a lower mould A top plate, a cavity is provided between the outer mold and the inner mold wall, a plurality of through holes are provided on the inner mold wall, the through holes are connected to the cavity, and the inner film wall is connected to the inner mold wall. A support layer fixedly connected with the inner mold wall is arranged between the rubber molds. The utility model can improve the diameter accuracy of the beryllium oxide ceramic column, reduce the subsequent correction amount, improve the production efficiency, and increase the quality of the beryllium oxide ceramic.
Description
Technical Field
The utility model relates to a beryllium oxide ceramic production field, concretely relates to beryllium oxide ceramic post cold isostatic pressing mould.
Background
And solidifying the beryllium oxide ceramic powder into a columnar shape through cold isostatic pressing after plastic packaging, and sintering at a high temperature of about 1700 ℃ to prepare the beryllium oxide ceramic column.
However, the beryllium oxide ceramic column produced by cold isostatic pressing of beryllium oxide ceramic powder has a slight diameter error due to uneven stress on the side wall of the cylindrical rubber mold, and is troublesome to correct after cold isostatic pressing.
In addition, the bottom of the beryllium oxide ceramic column solidified by cold isostatic pressing is fragile and easy to damage in the process of being transported to a sintering furnace, and the damage of the bottom surface enables the beryllium oxide ceramic to be easy to crack in the sintering process, so that the production is influenced.
Disclosure of Invention
The utility model discloses the purpose is: provides a beryllium oxide ceramic column cold isostatic pressing die capable of improving the quality of beryllium oxide ceramic.
The technical scheme of the utility model is that: a beryllium oxide ceramic column cold isostatic pressing die comprises an outer die, an inner die wall arranged in the outer die, a rubber die arranged on the inner wall of the inner die, an upper top plate and a lower top plate, wherein a cavity is arranged between the outer die and the inner die wall, a plurality of through holes are formed in the inner die wall, the through holes are connected with the cavity, and a supporting layer fixedly connected with the inner die wall is arranged between the inner die wall and the rubber die.
In the technical scheme, high-pressure liquid or gas is filled into the cavity, so that the rubber mold is stressed to press the beryllium oxide ceramic powder in the middle to be pressed, cured and formed, the supporting layer is used for guiding the liquid or the gas, the deformation of the rubber mold is reduced, the diameter accuracy of the beryllium oxide ceramic column is improved, the subsequent correction amount is reduced, and the production efficiency is improved.
In a preferred technical scheme, the support layer is a mesh material layer.
In a further technical scheme, the supporting layer is made of cloth.
According to the preferable technical scheme, the upper top plate and the lower top plate are both flat plates.
According to the further technical scheme, a rubber layer is arranged on the upper surface of the lower top plate.
According to the further technical scheme, the middle of the rubber layer is downwards sunken to form an arc surface, the periphery of the arc surface is abutted to the lower portion of the rubber mold, and the middle of the bottom surface is fixedly connected with the upper surface of the lower top plate.
Further technical scheme, it still includes the pressure device that drives upper top plate and lower roof lift.
According to the technical scheme, the upper top plate and the lower top plate simultaneously pressurize the beryllium oxide ceramic powder to provide pressure, and the concave arc-shaped structure of the rubber layer can contain an extra part of beryllium oxide ceramic powder, so that the lower surface of the beryllium oxide ceramic column after cold isostatic pressing is more compact, and has better hardness and strength.
The utility model has the advantages that:
1. the utility model discloses can improve the diameter accuracy of beryllium oxide ceramic post, less subsequent correction improves production efficiency, increases the quality of beryllium oxide pottery.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
The invention will be further described with reference to the following drawings and examples:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the pressurized state of the present invention.
Wherein: 1. An outer mold; 2. an inner mold wall; 3. a rubber mold; 4. a cavity; 5. a support layer; 6. beryllium oxide ceramic powder; 7. an upper top plate; 8. a lower top plate; 81. a rubber layer.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Example (b): referring to fig. 1-2, the beryllium oxide ceramic column cold isostatic pressing die comprises an outer die 1, an inner die wall 2 arranged in the outer die 1, a rubber die 3 arranged on the inner wall of the inner die, an upper top plate 7 and a lower top plate 8, wherein a cavity 4 is arranged between the outer die 1 and the inner die wall 2, a plurality of through holes are arranged on the inner die wall 2, the through holes are connected with the cavity 4, and a supporting layer 5 fixedly connected with the inner die wall 2 is arranged between the inner die wall and the rubber die 3. High-pressure liquid or gas is filled into the cavity 4, so that the rubber mold 3 is stressed to press the beryllium oxide ceramic powder 6 in the middle part, the beryllium oxide ceramic powder is pressed and cured to be formed, the supporting layer 5 is used for guiding the liquid or the gas, the deformation of the rubber mold 3 is reduced, the diameter accuracy of the beryllium oxide ceramic column is improved, the subsequent correction amount is reduced, and the production efficiency is improved.
The support layer 5 is a mesh material layer. The support layer 5 is cloth.
The upper top plate 7 and the lower top plate 8 are flat plates. The upper surface of the lower top plate 8 is provided with a rubber layer 81. The middle part of the rubber layer 81 is concave downwards to form a cambered surface, the periphery of the cambered surface is abutted against the lower part of the rubber mold 3, and the middle part of the bottom surface is fixedly connected with the upper surface of the lower top plate 8.
And the device also comprises a pressurizing device for driving the upper top plate 7 and the lower top plate 8 to lift. In the technical scheme, the upper top plate 7 and the lower top plate 8 simultaneously pressurize the beryllium oxide ceramic powder 6 to provide pressure, and the concave arc-shaped structure of the rubber layer 81 can contain an additional part of the beryllium oxide ceramic powder 6, so that the lower surface of the beryllium oxide ceramic column after cold isostatic pressing is more compact, and has better hardness and strength.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A beryllium oxide ceramic column cold isostatic pressing die comprises an outer die, an inner die wall arranged in the outer die, a rubber die arranged on the inner wall of the inner die, an upper top plate and a lower top plate, wherein a cavity is arranged between the outer die and the inner die wall, a plurality of through holes are arranged on the inner die wall, and the through holes are connected with the cavity, and the beryllium oxide ceramic column cold isostatic pressing die is characterized in that: and a supporting layer fixedly connected with the inner mold wall is arranged between the inner mold wall and the rubber mold.
2. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 1, wherein: the supporting layer is a mesh material layer.
3. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 2, wherein: the supporting layer is made of cloth.
4. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 1, wherein: the upper top plate and the lower top plate are both flat plates.
5. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 4, wherein: and a rubber layer is arranged on the upper surface of the lower top plate.
6. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 5, wherein: the middle part of the rubber layer is downwards sunken to form an arc surface, the periphery of the rubber layer is abutted to the lower part of the rubber mold, and the middle part of the bottom surface is fixedly connected with the upper surface of the lower top plate.
7. The beryllium oxide ceramic column cold isostatic pressing mold according to claim 6, wherein: the device also comprises a pressurizing device for driving the upper top plate and the lower top plate to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023309866.0U CN214925578U (en) | 2020-12-31 | 2020-12-31 | A beryllium oxide ceramic column cold isostatic pressing mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023309866.0U CN214925578U (en) | 2020-12-31 | 2020-12-31 | A beryllium oxide ceramic column cold isostatic pressing mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214925578U true CN214925578U (en) | 2021-11-30 |
Family
ID=79116659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023309866.0U Expired - Fee Related CN214925578U (en) | 2020-12-31 | 2020-12-31 | A beryllium oxide ceramic column cold isostatic pressing mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214925578U (en) |
-
2020
- 2020-12-31 CN CN202023309866.0U patent/CN214925578U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |