CN220297934U - Powder hot isostatic pressing forming die - Google Patents
Powder hot isostatic pressing forming die Download PDFInfo
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- CN220297934U CN220297934U CN202321226477.2U CN202321226477U CN220297934U CN 220297934 U CN220297934 U CN 220297934U CN 202321226477 U CN202321226477 U CN 202321226477U CN 220297934 U CN220297934 U CN 220297934U
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- Prior art keywords
- wall
- hot isostatic
- isostatic pressing
- powder hot
- cylinder
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- 238000001513 hot isostatic pressing Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000004308 accommodation Effects 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims 2
- 238000005056 compaction Methods 0.000 claims 1
- 238000005266 casting Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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- Press Drives And Press Lines (AREA)
Abstract
The utility model relates to the technical field of hot isostatic pressing, in particular to a powder hot isostatic pressing forming die which comprises an outer cylinder, wherein the outer cylinder is of a cylindrical structure, three mounting feet are fixedly arranged on the outer wall of the bottom of the outer cylinder, the powder hot isostatic pressing forming die further comprises an inner cylinder, a sealing component and two limiting components, a containing hole is formed in the outer cylinder, the inner cylinder is inserted into the containing hole, a cavity is formed in the inner cylinder, the two limiting components are symmetrically arranged on the top and the outer wall of the inner cylinder, and the sealing component is arranged on the inner cylinder.
Description
Technical Field
The utility model relates to the technical field of hot isostatic pressing, in particular to a powder hot isostatic pressing forming die.
Background
The hot isostatic pressing process is to put the product into a closed container, apply equal pressure to the product in all directions, and apply high temperature at the same time, and sinter and densify the product under the action of high temperature and high pressure. Hot isostatic pressing is an indispensable means for high-performance material production and new material development; the hot isostatic pressing can be directly formed by powder, the powder is filled into a sheath (similar to a die), the sheath can be made of metal or ceramic (low carbon steel, ni, mo, glass and the like), and then nitrogen and argon are used as pressurizing mediums, so that the powder is directly heated, pressed, sintered and formed into the powder metallurgy process; or casting after molding; including aluminum alloys; a titanium alloy; and (3) carrying out thermal densification treatment on castings with shrinkage cavities such as high-temperature alloy, wherein after the thermal isostatic pressing treatment, the castings can reach 100% densification, and the overall mechanical properties of the castings are improved.
The existing powder hot isostatic pressing die has the following defects:
1. the product is bonded with the inner wall of the die after being heated and pressurized, so that quick demolding cannot be realized, and the blanking efficiency is reduced.
2. The existing die cavity is generally integrally formed, is used as an important part of a direct formed product, is easy to damage after long-time use, cannot be quickly replaced, and meanwhile, the whole die is required to be abandoned, so that the use cost is increased undoubtedly.
3. In a general die, the shell is easy to crack in a heating and pressurizing container, so that the hot isostatic pressing effect is seriously affected, and the product is deformed.
Disclosure of Invention
The utility model aims to provide a powder hot isostatic pressing forming die which is used for solving the problems that the die cannot be quickly disassembled and assembled and is inconvenient to maintain and replace.
To achieve the purpose, the utility model adopts the following technical scheme:
the powder hot isostatic pressing forming die comprises an outer cylinder which is of a cylindrical structure, three mounting feet are fixedly arranged on the outer wall of the bottom of the outer cylinder,
still include inner tube, seal assembly and two spacing subassemblies, the inside of urceolus is equipped with the accommodation hole, and the inner tube inserts the inside of establishing at the accommodation hole, and the inside of inner tube is equipped with the die cavity, and two spacing subassemblies are the symmetry setting on the top and the bottom outer wall of inner tube, and seal assembly establishes on the inner tube.
Preferably, each limiting component comprises a limiting ring and three inserting rods, the three inserting rods are arranged on the inner wall of the containing hole at equal intervals, each inserting rod is fixedly connected with the inner wall of the containing hole through a connecting block, the limiting ring is sleeved on the outer wall of the three inserting rods, the outer wall of the limiting ring is attached to the outer wall of the three connecting blocks, and insertion holes for the three inserting rods to be inserted are formed in the limiting ring at equal intervals.
Preferably, the sealing assembly comprises a top cover and a bottom cover, the top cover and the bottom cover are respectively in threaded connection with the top end and the bottom end of the outer cylinder, pull grooves are formed in the outer walls of the top cover and the bottom cover, round bosses are formed in the outer walls of the top cover and the bottom cover in an integrated manner, and each round boss is inserted into one end of the cavity.
Preferably, a plurality of limiting strips are arranged on the inner wall of the accommodating hole at equal intervals, each limiting strip is fixedly connected with the inner wall of the accommodating hole, and one end, far away from the outer cylinder, of each limiting strip is attached to the outer wall of the inner cylinder.
Preferably, the inner cylinder comprises two semicircular cylinders which are symmetrically arranged between the two limiting rings, and the two semicircular cylinders are spliced through the two T-shaped blocks.
Preferably, the outer wall of the top cover is sequentially provided with a feeding pipe and an exhaust pipe, and sealing plugs are inserted in the feeding pipe and the exhaust pipe.
The utility model has the beneficial effects that:
1. compared with the prior art, the double-layer protection structure has the double-layer protection effect, and even if the outer cylinder is heated and pressed to generate cracking, the operation of the inner cylinder is not influenced, so that smooth molding of a product is ensured, and the hot isostatic pressing effect is improved.
2. According to the utility model, the sealing assembly and the two limiting assemblies are designed, and meanwhile, the inner barrel is designed into the structure of sliding insertion of the two semicircular cylinders, so that the whole die is convenient to assemble and disassemble, and when any part is damaged, the whole die can be quickly assembled and disassembled for replacement, so that the whole die is prevented from being abandoned, the service life is prolonged, the use cost is reduced, and the cost of hot isostatic pressing is further reduced.
3. According to the utility model, the inner cylinder is designed into the structure of sliding and inserting two semicircular cylinders, and as the two semicircular cylinders are inserted through the two T-shaped blocks, one semicircular cylinder can be knocked to slip off the outer wall of the other semicircular cylinder, so that the two semicircular cylinders are separated, a product can be quickly taken out from the other semicircular cylinder after being limited by the two semicircular cylinders, and compared with the prior art, the product can be effectively prevented from being too tightly adhered to the inner wall of a cavity and being quickly demoulded, and the demoulding efficiency of the product is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description briefly describes the drawings in the embodiments of the present utility model.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a cut-away view of the outer barrel, cap and one of the stop collars of the present utility model;
FIG. 3 is an enlarged view at A in FIG. 2;
FIG. 4 is an enlarged view at B in FIG. 2;
FIG. 5 is an exploded perspective view of two half cylinders according to the present utility model;
FIG. 6 is an enlarged view at C in FIG. 5;
in the figure: the device comprises an outer cylinder 1, mounting feet 2, an inner cylinder 3, a sealing component 4, a limiting component 5, a containing hole 6, a cavity 7, a limiting ring 8, an inserting rod 9, a connecting block 10, a top cover 11, a bottom cover 12, a pull groove 13, a circular boss 14, a limiting strip 15, a semicircular cylinder 16, a T-shaped block 17, a feeding pipe 18, an exhaust pipe 19 and a sealing plug 20.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the utility model, certain elements of the drawings may be omitted, enlarged or reduced in size and do not represent the actual product dimensions.
Referring to fig. 1 to 6, a powder hot isostatic pressing forming die comprises an outer cylinder 1, wherein the outer cylinder 1 is of a cylindrical structure, three mounting feet 2 are fixedly arranged on the outer wall of the bottom of the outer cylinder 1, screw holes are respectively arranged on the three mounting feet 2, the die is convenient to be mounted with a heating and pressurizing container, the hot isostatic pressing die cannot be inclined and fallen during hot isostatic pressing, the smoothness of work is improved,
still include inner tube 3, seal assembly 4 and two spacing subassemblies 5, the inside of urceolus 1 is equipped with accommodation hole 6, and inner tube 3 inserts the inside of establishing at accommodation hole 6, and the inside of inner tube 3 is equipped with die cavity 7, and two spacing subassemblies 5 are the symmetry and set up on the top and the bottom outer wall of inner tube 3, and seal assembly 4 is established on inner tube 3.
Referring to fig. 3, each limiting component 5 includes a limiting ring 8 and three inserting rods 9, the three inserting rods 9 are equidistantly arranged on the inner wall of the accommodating hole 6, each inserting rod 9 is fixedly connected with the inner wall of the accommodating hole 6 through a connecting block 10, the limiting ring 8 is sleeved on the outer wall of the three inserting rods 9, the outer wall of the limiting ring 8 is attached to the outer wall of the three connecting blocks 10, inserting holes for inserting the three inserting rods 9 are equidistantly formed in the limiting ring 8, when two circular bosses 14 are not plugged at two ends of the cavity 7 any more, the limiting ring 8 is pulled towards one end far away from the inner barrel 3, so that the limiting ring 8 is pulled out from the outer wall of the three inserting rods 9, the other limiting ring 8 is pulled down by the same method, and the top ends and the bottom ends of the two semi-cylinders 16 are not hooped any more.
Referring to fig. 2, the sealing assembly 4 comprises a top cover 11 and a bottom cover 12, the top cover 11 and the bottom cover 12 are respectively in threaded connection with the top end and the bottom end of the outer barrel 1, pull grooves 13 are formed in the outer walls of the top cover 11 and the bottom cover 12, round bosses 14 are formed in an integrated manner in the outer walls of the top cover 11 and the bottom cover 12, each round boss 14 is connected with one end of the cavity 7 in an inserting mode, and when a product needs to be taken out, the top cover 11 and the bottom cover 12 are respectively screwed off from the top end and the bottom end of the outer barrel 1 through the two pull grooves 13, so that the two round bosses 14 are not plugged at two ends of the cavity 7.
Referring to fig. 3, a plurality of limiting strips 15 are arranged on the inner wall of the accommodating hole 6 at equal intervals, each limiting strip 15 is fixedly connected with the inner wall of the accommodating hole 6, one end of each limiting strip 15 far away from the outer cylinder 1 is attached to the outer wall of the inner cylinder 3, and because each limiting strip 15 is fixedly connected with the inner wall of the accommodating hole 6, one end of each limiting strip 15 far away from the outer cylinder 1 is attached to the outer wall of the inner cylinder 3 only, when the top end and the bottom end of each two semicircular cylinders 16 are not hooped any more, products formed inside the two semicircular cylinders 16 can be directly pulled out of the plurality of limiting strips 15 rapidly.
Referring to fig. 5 and 6, the inner cylinder 3 includes two semi-cylinders 16, the two semi-cylinders 16 are symmetrically disposed between the two limiting rings 8, and the two semi-cylinders 16 are inserted through the two T-shaped blocks 17, when the two semi-cylinders 16 and the products formed inside the two semi-cylinders are rapidly pulled out from between the plurality of limiting strips 15, as the two semi-cylinders 16 are inserted through the two T-shaped blocks 17, one semi-cylinder 16 can be knocked to slip from the outer wall of the other semi-cylinder 16, so that detachment of the two semi-cylinders is realized, the products can be rapidly taken out from the other semi-cylinder 16 after the products are not limited by the two semi-cylinders 16, compared with the prior art, the product can be effectively prevented from being bonded too tightly with the inner wall of the cavity 7, the demolding efficiency of the product can be improved, and meanwhile, the two semi-cylinders 16 are easier to damage, when the product is damaged, the product can be rapidly disassembled through the steps, the service life can be prolonged, the service life can be replaced, and the cost of the whole die can be reduced.
Referring to fig. 4, a feeding pipe 18 and an exhaust pipe 19 are sequentially arranged on the outer wall of the top cover 11, a sealing plug 20 is inserted into the feeding pipe 18 and the exhaust pipe 19, when powder hot isostatic pressing is performed, powder is firstly added into the cavity 7 through the feeding pipe 18, then air in gaps among the powder and a sheath is pumped out through the exhaust pipe 19, the sealing plug 20 is tightly closed, the die is placed in a pressure container with a heating furnace, inert gas is injected into the container to increase the pressure, then the temperature is increased to a required temperature, and forming and sintering are completed under the combined action of high temperature and high pressure.
Claims (6)
1. The utility model provides a powder hot isostatic compaction mould, includes urceolus (1), urceolus (1) are cylindric structure, and fixedly on the bottom outer wall of urceolus (1) are equipped with three mounting foot (2), its characterized in that:
still include inner tube (3), seal assembly (4) and two spacing subassembly (5), the inside of urceolus (1) is equipped with accommodation hole (6), and inner tube (3) are inserted and are established in the inside of accommodation hole (6), and the inside of inner tube (3) is equipped with die cavity (7), and two spacing subassembly (5) are the symmetry and set up on the top and the bottom outer wall of inner tube (3), and seal assembly (4) are established on inner tube (3).
2. A powder hot isostatic pressing die as defined in claim 1, wherein: every spacing subassembly (5) all includes spacing ring (8) and three inserted bar (9), equidistant setting of three inserted bar (9) is on the inner wall of holding hole (6), and every inserted bar (9) all through connecting block (10) with the inner wall fixed connection who holds hole (6), spacing ring (8) cover is established on the outer wall of three inserted bar (9), and the outer wall laminating of spacing ring (8) and the outer wall laminating of three connecting block (10), equidistant jack that is provided with on spacing ring (8) supplies three inserted bar (9) to insert.
3. A powder hot isostatic pressing die as defined in claim 2, wherein: the sealing component (4) comprises a top cover (11) and a bottom cover (12), the top cover (11) and the bottom cover (12) are respectively connected with the top end and the bottom end of the outer cylinder (1) in a threaded mode, pull grooves (13) are formed in the outer walls of the top cover (11) and the bottom cover (12), round bosses (14) are formed in the outer walls of the top cover (11) and the bottom cover (12) in an integrated mode, and each round boss (14) is connected with one end of the cavity (7) in an inserting mode.
4. A powder hot isostatic pressing die as defined in claim 3, wherein: a plurality of limit strips (15) are arranged on the inner wall of the accommodating hole (6) at equal intervals, each limit strip (15) is fixedly connected with the inner wall of the accommodating hole (6), and one end, far away from the outer cylinder (1), of each limit strip (15) is attached to the outer wall of the inner cylinder (3).
5. A powder hot isostatic pressing die as defined in claim 4, wherein: the inner cylinder (3) comprises two semicircular cylinders (16), the two semicircular cylinders (16) are symmetrically arranged between the two limiting rings (8), and the two semicircular cylinders (16) are spliced through the two T-shaped blocks (17).
6. A powder hot isostatic pressing die as defined in claim 5, wherein: the outer wall of the top cover (11) is sequentially provided with a feeding pipe (18) and an exhaust pipe (19), and sealing plugs (20) are inserted in the feeding pipe (18) and the exhaust pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226477.2U CN220297934U (en) | 2023-05-18 | 2023-05-18 | Powder hot isostatic pressing forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321226477.2U CN220297934U (en) | 2023-05-18 | 2023-05-18 | Powder hot isostatic pressing forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220297934U true CN220297934U (en) | 2024-01-05 |
Family
ID=89346804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321226477.2U Active CN220297934U (en) | 2023-05-18 | 2023-05-18 | Powder hot isostatic pressing forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220297934U (en) |
-
2023
- 2023-05-18 CN CN202321226477.2U patent/CN220297934U/en active Active
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