CN212331366U - Cold isostatic pressing mould for manufacturing ceramic target - Google Patents
Cold isostatic pressing mould for manufacturing ceramic target Download PDFInfo
- Publication number
- CN212331366U CN212331366U CN202020629529.0U CN202020629529U CN212331366U CN 212331366 U CN212331366 U CN 212331366U CN 202020629529 U CN202020629529 U CN 202020629529U CN 212331366 U CN212331366 U CN 212331366U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing plug
- cold isostatic
- mold
- manufacturing ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a make ceramic target for cold isostatic pressing mould, including metal centre form, metal external mold, form in packing chamber between centre form and the external mold and be used for sealing elastic sealing device, its characterized in that have of packing chamber: the outer die has a height less than the height of the inner die, the outer die having a plurality of different heights/diameters for replacement. The mold can better control the outer diameter of the target blank and can prepare targets with different specifications.
Description
Technical Field
The utility model relates to a cold isostatic pressing mould especially relates to a make cold isostatic pressing mould for ceramic target.
Background
Cold isostatic pressing is a forming method for preparing ceramic target materials, and the general process of cold isostatic pressing is as follows: under the normal temperature state, the powder is placed in a closed liquid environment, and the ultrahigh pressure is transmitted by the liquid to enable the powder to be molded through a certain tooling die device.
The cold isostatic pressing mould in the prior art can refer to Chinese utility model patent with publication number CN202428529U, generally comprises a metal inner mould and a rubber sleeve, the outer mould of the mould is only the rubber sleeve, and the outer diameter of the obtained ceramic target blank is difficult to control due to the elastic expansion of the rubber sleeve in the process of filling; the mold can only be used for preparing a ceramic tube with one size, but various tubular targets with different specifications are needed in the field of ceramic target manufacturing, so that a cold isostatic pressing mold capable of being used for preparing ceramic targets with different specifications is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the current situation of prior art provides a cold isostatic pressing mould that can better control the external diameter size of target body, can prepare different specification targets.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a make ceramic target material with cold isostatic pressing mould, includes metal centre form, metal external mold, forms in the packing chamber between centre form and the external mold, and be used for sealing the elastic sealing device in packing chamber which characterized in that: the outer die has a height less than the height of the inner die, the outer die having a plurality of different heights/diameters for replacement.
Since the raw powder shrinks in volume after isostatic pressing, the height of the sealing means is greater than the height of the outer die in order to be able to fill a sufficient amount of raw powder.
Preferably, the sealing device comprises a sealing sleeve, a first sealing plug and a second sealing plug which are all made of elastic materials; the height of the sealing sleeve is greater than that of the sealing sleeve of the outer die, the sealing sleeve is sleeved between the inner die and the outer die, and the diameter of the sealing sleeve is matched with the inner diameter of the outer die; the upper end and the lower end of the sealing sleeve are respectively provided with a first sealing plug and a second sealing plug in a plugging mode, so that the filling cavity is formed between the first sealing plug and the second sealing plug, and the outer side of the sealing sleeve is provided with a fixing part for bundling and fixing the first sealing plug and the second sealing plug. The sealing device structure not only has good sealing effect, but also can uniformly transmit oil pressure.
Preferably, the fixing member is a fixing rope or a bendable wire.
In order to further improve the sealing effect, a sealing gasket is arranged between the first sealing plug and the raw material powder of the filling cavity in a cushioning mode.
Preferably, the bottom of the inner mold is provided with a flange extending outwards in the radial direction, and the second sealing plug is sleeved on the periphery of the flange. The bottom diameter of centre form is great for this kind of structure, and the transport/centre gripping of being convenient for, and can play limiting displacement to the bottom of raw materials powder at the isostatic pressing in-process, prevents sealed inefficacy.
In order to facilitate the powder loading operation, the bottom of the outer die is provided with a support leg.
In order to guide the oil pressure liquid into a gap between the outer die and the sealing sleeve and further enable the raw material powder to be uniformly pressed, a plurality of flow guide holes are formed in the wall surface of the outer die.
Preferably, the diversion holes are uniformly arranged at intervals, and the arrangement density is 1-25/cm2。
In order to facilitate hoisting and carrying, a hoisting ring is arranged at the upper end of the inner die.
Compared with the prior art, the utility model has the advantages of: the utility model comprises a metal inner mold and a metal outer mold, and the outer diameter of the ceramic target blank can be well controlled through the limitation of the metal inner mold and the metal outer mold, so that the outer diameter is more uniform and is not easy to deviate from the design size greatly; and a plurality of external molds with different specifications can be matched with the internal mold to prepare target blanks with various specifications.
Drawings
Fig. 1 is a schematic overall structure diagram of a mold according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a mold according to an embodiment of the present invention;
fig. 3 is a sectional view of a mold according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
As shown in fig. 1 to 3, the isostatic cool pressing die for manufacturing ceramic target comprises a metal inner die 1, a metal outer die 2, a packing cavity 3 formed between the inner die 1 and the outer die 2, and a sealing device for sealing the packing cavity 3, wherein the height of the outer die 2 is smaller than that of the inner die 1, and the outer die 2 has a plurality of different heights/diameters for replacement. The corresponding outer die 2 of the die can be replaced according to the height and the diameter of the target material to be prepared, and the corresponding sealing device is matched. The inner mold 1 and the outer mold 2 of this embodiment are made of steel, the inner mold 1 is a steel column type, and the outer mold 2 is a steel sleeve type.
Since the raw powder shrinks in volume after isostatic pressing, the height of the sealing means is greater than the height of the outer die 2 in order to be able to fill a sufficient amount of raw powder. The sealing device comprises a sealing sleeve 41, a first sealing plug 42 and a second sealing plug 43 which are all made of elastic materials, wherein the height of the sealing sleeve 41 is greater than that of the outer die 2, the sealing sleeve 41 is sleeved between the inner die 1 and the outer die 2, and the diameter of the sealing sleeve 41 is matched with the inner diameter of the outer die 2; the upper end and the lower end of the sealing sleeve 41 are respectively provided with a first sealing plug 42 and a second sealing plug 43, so that a filling cavity 3 is formed between the first sealing plug 42 and the second sealing plug 43, and the outer side of the sealing sleeve 41 is provided with a fixing part 44 for bundling and fixing the first sealing plug 42 and the second sealing plug 43. The fixing member 44 is a fixing string or a bendable wire. The utility model discloses a this kind of sealing device structure not only seals effectually but also can evenly transmit oil pressure and be convenient for operate.
The diameter of the sealing sleeve 41 of the embodiment is slightly smaller than the inner diameter of the outer die 2, so that the outer die 2 can protect the sealing sleeve 41 and prevent collision in the hoisting or operating process; and can also avoid the waste of raw materials and uneven size caused by the excessive expansion of the sealing sleeve 41 during powder filling. The first sealing plug 42 and the second sealing plug 43 of this embodiment are both circular ring type, and the sealing sleeve 41, the first sealing plug 42 and the second sealing plug 43 of this embodiment are all made of rubber, preferably, the rubber material is suitable material with elasticity, such as butadiene acrylonitrile rubber, styrene butadiene rubber, silicon rubber, and the like. The fixing member 44 of this embodiment is a steel wire, and for better sealing, three steel wires are uniformly bundled on the outer side of each sealing plug at intervals in the axial direction. In order to obtain a better sealing effect, a sealing gasket 45 is further arranged between the first sealing plug 42 and the raw material powder of the filling cavity 3 in a cushioning mode, and the sealing gasket 45 is also made of rubber.
The bottom of the inner mold 1 is provided with a flange 11 extending outward in the radial direction, and the second sealing plug 43 is sleeved on the periphery of the flange 11. The bottom diameter of centre form 1 is great for this kind of structure, the transport/centre gripping of being convenient for, and can play limiting displacement to the bottom of former powdered material at the isostatic pressing in-process, prevents sealed inefficacy.
In order to facilitate the powder loading operation, the bottom of the outer mould 2 is provided with feet 21. The number of the support legs 21 in this embodiment is three at regular intervals.
In order to guide the oil pressure liquid into the gap between the outer die 2 and the sealing sleeve 41, so that the raw material powder is uniformly pressed, a plurality of guide holes 22 are formed in the wall surface of the outer die 2. Preferably, the diversion holes 22 are uniformly spaced and arranged at a density of 1-25/cm2. The diameter of the diversion hole 22 of the embodiment is 3-15 mm.
In order to facilitate hoisting and carrying, a hoisting ring 12 is arranged at the upper end of the inner die 1.
The steps of preparing the target blank by using the die are as follows:
a. dipping the surface of the inner mold 1 with dust-free cloth, taking alcohol, cleaning, and sleeving the second sealing plug 43 at the bottom of the large-diameter steel core;
b. sleeving the inner mold 1 and the second sealing plug 43 at the bottom of the inner mold from top to bottom by using a sealing sleeve 41, and ensuring that the second sealing plug 43 is completely embedded into the sealing sleeve 41 as much as possible;
c. the second sealing plug 43 is bundled and sealed by using a steel wire;
d. using a scoop to fill powder while vibrating, wherein the vibration frequency is 15-290Hz, and the vibration time is 1-4.5 h;
e. placing a sealing gasket 45 at the upper end of the powder, and sealing by using a first sealing plug 42;
f. the first sealing plug 42 is sealed by bundling with a steel wire;
g. hoisting the mixture to an isostatic pressing machine for processing, using 160MPa to 210MPa, and keeping the pressure for 10 to 20 minutes;
h. taking out to obtain a blank.
The ceramic raw material powder used in this embodiment is zinc aluminum oxide, and the finally prepared green body has a constant inner diameter and uniform compression so that the outer diameter and the height of the green body are consistent, and the compactness is preferably 3.32g/cm3～3.43g/cm3. In addition to this, Al2O3AlN, SiC and mixtures thereof and any other ceramic raw material powder can also be produced using such a mold, and similar effects can also be obtained.
When blanks with different heights/diameters need to be prepared, the corresponding outer die 2 and the sealing device are replaced.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.
Claims (10)
1. The utility model provides a make ceramic target material with cold isostatic pressing mould, includes metal internal mold (1), metal external mold (2), forms in packing chamber (3) between internal mold (1) and external mold (2) and be used for sealing elastic sealing device of packing chamber (3), its characterized in that: the height of the outer mold (2) is less than the height of the inner mold (1), the outer mold (2) having a plurality of different heights/diameters for replacement.
2. The cold isostatic press mould for manufacturing ceramic targets according to claim 1, wherein: the height of the sealing device is larger than that of the outer die (2).
3. The cold isostatic press mould for manufacturing ceramic targets according to claim 2, wherein: the sealing device comprises a sealing sleeve (41), a first sealing plug (42) and a second sealing plug (43), wherein the sealing sleeve, the first sealing plug and the second sealing plug are all made of elastic materials; the height of the sealing sleeve (41) is greater than that of the outer die (2), the sealing sleeve (41) is sleeved between the inner die (1) and the outer die (2), and the diameter of the sealing sleeve (41) is matched with the inner diameter of the outer die (2); the upper end and the lower end of the sealing sleeve (41) are respectively provided with a first sealing plug (42) and a second sealing plug (43), so that the filling cavity (3) is formed between the first sealing plug (42) and the second sealing plug (43), and the outer side of the sealing sleeve (41) is provided with a fixing part (44) for bundling and fixing the first sealing plug (42) and the second sealing plug (43).
4. The cold isostatic press mould for manufacturing ceramic targets according to claim 3, wherein: the fixing component (44) is a fixing rope or a bendable metal wire.
5. The cold isostatic press mould for manufacturing ceramic targets according to claim 3, wherein: and a sealing gasket (45) is padded between the first sealing plug (42) and the raw material powder of the filling cavity (3).
6. The cold isostatic press mould for manufacturing ceramic targets according to claim 3, wherein: the bottom of the inner mold (1) is provided with a flange (11) extending outwards along the radial direction, and the second sealing plug (43) is sleeved on the periphery of the flange (11).
7. The cold isostatic press mould for manufacturing ceramic targets according to claim 3, wherein: the bottom of the outer die (2) is provided with a support leg (21).
8. The cold isostatic press mould for manufacturing ceramic targets according to any one of claims 1 to 7, wherein: the wall surface of the outer die (2) is provided with a plurality of flow guide holes (22).
9. According to claimThe cold isostatic pressing mold for manufacturing ceramic target material according to claim 8, wherein: the diversion holes (22) are uniformly arranged at intervals and the density is 1-25/cm2。
10. The cold isostatic press mould for manufacturing ceramic targets according to any one of claims 1 to 7, wherein: and a hanging ring (12) is arranged at the upper end of the inner die (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629529.0U CN212331366U (en) | 2020-04-23 | 2020-04-23 | Cold isostatic pressing mould for manufacturing ceramic target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020629529.0U CN212331366U (en) | 2020-04-23 | 2020-04-23 | Cold isostatic pressing mould for manufacturing ceramic target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212331366U true CN212331366U (en) | 2021-01-12 |
Family
ID=74073327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020629529.0U Active CN212331366U (en) | 2020-04-23 | 2020-04-23 | Cold isostatic pressing mould for manufacturing ceramic target |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212331366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116330460A (en) * | 2023-05-05 | 2023-06-27 | 江苏三责新材料科技有限公司 | Silicon carbide cylinder body forming device and silicon carbide cylinder body manufacturing process |
-
2020
- 2020-04-23 CN CN202020629529.0U patent/CN212331366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116330460A (en) * | 2023-05-05 | 2023-06-27 | 江苏三责新材料科技有限公司 | Silicon carbide cylinder body forming device and silicon carbide cylinder body manufacturing process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212331366U (en) | Cold isostatic pressing mould for manufacturing ceramic target | |
| CN201132215Y (en) | Isostatic cool pressing forming die for filter tube with closing end | |
| CN108556135A (en) | A kind of isostatic pressing mold of rotary target material | |
| US3502755A (en) | Method for forming indentations in isostaticly pressed articles | |
| CN106312067A (en) | Graphite die for pressureless spark plasma sintering | |
| US3824051A (en) | Mold apparatus for isostatic pressing of hollow parts | |
| CN204712512U (en) | Powder compaction device | |
| CN1098790C (en) | Packing method | |
| CN204526234U (en) | To the shaping device of elastic mould in isostatic pressing machine | |
| KR101496331B1 (en) | High purity tube type ceramic-molding apparatus high purity tube type ceramic-molding method using same | |
| CN216065533U (en) | Tungsten or molybdenum crucible isostatic compaction mould | |
| CN108372573A (en) | The cold isostatic compaction mould and forming method of ceramic tube | |
| CN209426257U (en) | The dress powder device of blind pipe isostatic pressing | |
| JP2005195333A (en) | Method, device and fixture for manufacturing buffer for radioactive waste disposal, and conveyer | |
| JP2004174861A (en) | Bottomed ceramic tube molding die and its manufacturing method | |
| JP2817436B2 (en) | Suction casting equipment | |
| CN205702438U (en) | A kind of titanium rod filter core capsule device | |
| CN211054211U (en) | Vulcanization tool for radial stress application of solid tire | |
| CN220843077U (en) | Hexagonal boron nitride packing plant | |
| CN219247668U (en) | Winding iron core glue filling tool | |
| JPH01156403A (en) | Method for packing granular powder | |
| CN207188481U (en) | A kind of compression molding device of hard alloy valve ball | |
| JP5361954B2 (en) | Rubber press molding method | |
| CN217751915U (en) | Isostatic compaction mould for preparing ceramic with blind holes | |
| CN215544812U (en) | Injection molding die for mechanical engineering castings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 102206 songlanbao village, Shahe Town, Changping District, Beijing Patentee after: Beijing Orient Co.,Ltd. Address before: 100089 no.1408-036, 14th floor, shining building, 35 Xueyuan Road, Haidian District, Beijing Patentee before: Beijing Hangda Micro Technology Co.,Ltd. |