CN201645646U - Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed - Google Patents
Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed Download PDFInfo
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- CN201645646U CN201645646U CN2009201806306U CN200920180630U CN201645646U CN 201645646 U CN201645646 U CN 201645646U CN 2009201806306 U CN2009201806306 U CN 2009201806306U CN 200920180630 U CN200920180630 U CN 200920180630U CN 201645646 U CN201645646 U CN 201645646U
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- springform
- rubber ring
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- tubular
- rigidity core
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Abstract
The utility model relates to a cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed, which is characterized in that: the mould comprises a rigid mandrel, a rubber ring, a rubber plug, a tubular elastic mould and a round bench, wherein the rubber ring is sleeved on one end of the rigid mandrel, the tubular elastic mould is sleeved out of the rigid mandrel and the rubber ring, the bottom of the tubular elastic mould is plugged with the round bench, the round bench clings the end planes of the mandrel and the rubber ring; after the powder filling the cavity between the rigid mandrel and the tubular elastic mould coats the four sides and the top end of the rigid mandrel, the end of the tubular elastic mould is sealed by the rubber plug. The mould of the utility model is simple in structure and easy to operate and use. The ceramic tube by the method has the advantages of high yield, high degree of finish, precision shape and dimension, non defect in the interior. The mould can be used for the Na-beta-Al2O3 ceramic tube blank or other ceramic tube blank with thin wall, large size and large length to diameter ratio.
Description
Technical field
The utility model relates to a kind of mould of cold isostatic compaction earthenware, particularly a kind of cold isostatic compaction one end sealing Na-β " Al that is used for
2O
3The mould of pottery pipe.
Background technology
The forming process of pottery is an important step in the ceramic material technical process, directly influences shape, size, performance and the production cost etc. of final ceramic.The forming method that can be used for the forming ceramic pipe at present has extrusion molding, injection moulding and cold isostatic compaction etc.Patent 02115604.2 and 00136834.6 provides the extrusion molding and the injection moulding method of earthenware respectively.They all need to add complicated organics additive, complicated process of preparation, and need steps such as dewaxing or curing.Cold isostatic compaction utilizes the incompressible character of liquid, and molding blank is evenly exerted pressure from all directions, can obtain higher base substrate density and uniformity, and the ceramic of plastic different size and shape.Patent 200520047794.3 has been announced a kind of mould that is used for isostatic compaction both ends open earthenware.The NaS battery has characteristics such as high-energy-density, specific power, has wide application prospects.Na-β " Al
2O
3Pipe (solid electrolyte) has characteristics such as an end sealing, thin-walled, big L/D ratio as its critical component, and the moulding process to biscuit in manufacture process requires very high.Molding the uniform earthenware base substrate of high strength, high-compactness, high dimensional accuracy and quality is sintering high strength, high conductivity Na-β " Al
2O
3The key of pipe and precondition.
Summary of the invention
The utility model provides a kind of end sealing Na-β " Al that is used to prepare
2O
3The cold isostatic compaction mould of earthenware, it is simple in structure, and use earthenware base substrate density height that this mould molding comes out, size is accurate, product percent of pass is high, can be used for producing in batches.
The technical solution of the utility model is as follows:
Powder is put into the cavity between rigidity core and the tubular springform during moulding, the powder two ends are respectively rubber ring and rubber stopper, for guaranteeing that forming ceramic pipe bottom is complete, preventing that high pressure adheres to down between rubber stopper and ceramic powder, can between rubber stopper and powder, fill up one deck or two-layer smooth, soft thin slice, as the scraps of paper.Seal the entire die vacuum with plastic foil the powder filled back that finishes, and puts into the extrusion forming of isostatic pressing machine cavity.Use plastic foil to seal and to prevent that oil from infiltrating mould inside, can prevent that also the mould external dust from entering in the isostatic pressing machine cavity and pollute hydraulic oil.After pressurization finishes, take out mould, take off rubber stopper and springform successively, body has certain bounce-back and with the rigid core intermode certain interval is arranged after the release of forming ceramic pipe, and is easy to take off from the rigidity core.
Described rigidity core will have enough hardness and fineness to guarantee the fineness of forming ceramic inside pipe wall, can use materials such as common steel or duralumin.The rigid core die tip has fillet to guarantee forming ceramic pipe bottom integrality, and the round platform of rigidity core bottom is used to limit the position of rubber ring and cooperates with the springform bottom; Described round platform external diameter is greater than tubular springform internal diameter 0.2～1mm; Little 0.2～the 1mm of internal diameter specific rigidity core external diameter of described rubber ring, rubber ring external diameter, rubber stopper diameter are than the big 0.2～1mm of tubular springform internal diameter.
Described rubber ring, the powder sealing of pottery nose end and bottom when rubber stopper is respectively applied for moulding will have suitable elasticity.
Main pressure-containing parts when described springform is isostatic compaction requires it to have oil resistivity and better elastic, and its inwall requires to have certain fineness to guarantee the fineness of the earthenware outer wall after the moulding, generally uses oil-resistant rubber material.
Mould structure described in the utility model is simple, easy operating uses the Na-β " Al that molds
2O
3Pottery pipe product percent of pass height, inside and outside tube wall are highly polished, shape and size accurately and have sufficient intensity, can machine processing etc. as required.Described mould uses and not limited by the powder composition, and other have the earthenware of characteristics such as thin-walled, large scale, big L/D ratio also to can be used for moulding.Select for use the suitable powder of performance can obtain the earthenware base substrate of higher-density and intensity, handle and densified sintering product and be easy to processing.
Description of drawings
Fig. 1 is the structural representation of mould described in the utility model.
The specific embodiment
Embodiment 1: a kind ofly be used to prepare end sealing Na-β " Al
2O
3The cold isostatic compaction mould of earthenware, include rigidity core 7, rubber ring 5, rubber stopper 8, tubular springform 4, round platform 3, rubber ring 5 is enclosed within rigidity core 7 ends, tubular springform 4 is enclosed within outside rigidity core 7 and the rubber ring 5, the bottom of tubular springform 4 is plugged with round platform 3, and described round platform 3 is close to the end face of rigidity core 7 and rubber ring 5; Cavity filling powder 6 between rigidity core 7 and the tubular springform 4 is coated on around the rigidity core 7 and behind the top, the upper end pad is gone up the scraps of paper 1, and the end of tubular springform 4 is with sealing with rubber stopper 8.
The 7 usefulness 45# steel Vehicle Processings of rigidity core are to required size and fineness, its diameter should be than the little 0.1～0.5mm of required earthenware internal diameter, decide on concrete earthenware internal diameter size, the external diameter of its bottom round platform 3 is than the big 0.5mm of internal diameter of tubular springform 4, and its top fillet 2 radius size are decided according to earthenware internal diameter size.Springform 4 internal diameters are according to static pressure shrinkage factor and the institute's forming ceramic pipe body diameter that requires decisions such as ceramic powders.The little 0.5mm of rubber ring 5 internal diameter specific rigidity core 7 external diameters, rubber ring 5 external diameters are than the big 0.5mm of springform 4 internal diameters, and rubber stopper 8 diameters are than the big 0.5mm of springform internal diameter.During moulding, at first rubber ring 5 is enclosed within rigidity core 7 bottoms, then springform 4 is enclosed within outside rigidity core 7 and the rubber ring 5, one annular charging hopper is placed in the hole on springform 4 and rigidity core 7 tops, and it is reinforced by this funnel, powder is when filling up, take off charging hopper, continue to be dosed to the powder plane and exceed rigidity core 7 tops, with powder ram-jolt and guarantee that last powder 6 planes exceed rigidity core 7 top plane 3～5mm, reinforced finishing, it is two-layer to prevent that managing the end breaks to be encased inside thin paper sheet 1 during the bigger ceramic pipe of compacting diameter on powder, cover rubber stopper 8 then, with plastic foil the entire die vacuum packet is honored as a queen and puts into isostatic pressing machine, at 100～250MPa isostatic compaction.After the release, take out mould, remove plastic foil successively, take off rubber stopper 8 and springform 4, can take off earthenware base substrate after the moulding.
Embodiment 2: the 7 usefulness 45# steel Vehicle Processings of rigidity core are to required size and fineness, and its diameter is Φ 23.5mm, and the external diameter of its bottom round platform 3 is Φ 36mm, and its top fillet 2 radiuses are 5mm.Springform 4 internal diameters are 35.5mm, and rubber ring 5 internal diameters are Φ 23mm, and rubber ring 5 external diameters are Φ 36mm, and rubber stopper 8 diameters are Φ 36mm.Use and press Na-β " Al
2O
3The composition ball milling mixes the spray-dired powder in back, according to embodiment one method of operating dress mould, etc. static pressure, the gained tube blank size is external diameter Φ 30.5mm, internal diameter Φ 23.7mm, long 200mm.
Embodiment 3: the 7 usefulness 45# steel Vehicle Processings of rigidity core are to required size and fineness, and its diameter is Φ 46.5mm, and the external diameter of its bottom round platform 3 is Φ 55.5mm, and its top fillet 2 radiuses are 10mm.Springform 4 internal diameters are 55mm, and rubber ring 5 internal diameters are Φ 46mm, and rubber ring 5 external diameters are Φ 55.5mm, and rubber stopper 8 diameters are Φ 55.5mm.Use and press Na-β " Al
2O
3The composition ball milling mixes the spray-dired powder in back, according to embodiment one method of operating dress mould, etc. static pressure, the gained tube blank size is external diameter Φ 51.5mm, internal diameter Φ 46.8mm, long 260mm.
Claims (3)
1. one kind is used to prepare end sealing Na-β " Al
2O
3The cold isostatic compaction mould of earthenware, it is characterized in that: include rigidity core, rubber ring, rubber stopper, tubular springform, round platform, rubber ring is enclosed within rigidity core end, the tubular springform is enclosed within outside rigidity core and the rubber ring, the bottom of tubular springform is plugged with round platform, and described round platform is close to the end face of rigidity core and rubber ring; Cavity filling powder between rigidity core and the tubular springform is coated on around the rigidity core and behind the top, seal with rubber stopper the end of tubular springform.
2. isostatic tooling according to claim 1 is characterized in that: described rigidity core adopts steel or duralumin material; The rigid core die tip has fillet, and described round platform external diameter is greater than tubular springform internal diameter 0.2～1mm; Little 0.2～the 1mm of internal diameter specific rigidity core external diameter of described rubber ring, rubber ring external diameter, rubber stopper diameter are than the big 0.2～1mm of tubular springform internal diameter.
3. isostatic tooling according to claim 1 is characterized in that: be lined with the scraps of paper between the powder in described rubber stopper and the tubular springform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806306U CN201645646U (en) | 2009-11-17 | 2009-11-17 | Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806306U CN201645646U (en) | 2009-11-17 | 2009-11-17 | Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201645646U true CN201645646U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201806306U Expired - Fee Related CN201645646U (en) | 2009-11-17 | 2009-11-17 | Cold isostatic pressing forming mould for preparing Na-beta-Al2O3 ceramic tube with one end closed |
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|---|---|
| CN (1) | CN201645646U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172973A (en) * | 2011-02-18 | 2011-09-07 | 山东合创明业精细陶瓷有限公司 | Special die for long bar ceramic blank bottom-pouring liquid lifting casting formation and preparation method for producing long bar ceramic by using same |
| CN102172975A (en) * | 2011-02-18 | 2011-09-07 | 山东合创明业精细陶瓷有限公司 | Mould for preparing ceramic cartridge and method for preparing ceramic cartridge by utilizing same |
| CN103072196A (en) * | 2011-11-21 | 2013-05-01 | 常熟市创新陶瓷有限公司 | Isostatic mold |
| CN106182343A (en) * | 2016-08-17 | 2016-12-07 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery solid electrolyte ceramic pipe forming method |
| CN110341034A (en) * | 2019-08-29 | 2019-10-18 | 济源市东方自动化设备有限公司 | A kind of ceramics inside pipe wall convex edge compacting tool set component |
| CN110467440A (en) * | 2019-08-23 | 2019-11-19 | 福建华清电子材料科技有限公司 | A kind of preparation method of large scale tabular alumina ceramics |
| CN111483171A (en) * | 2020-04-22 | 2020-08-04 | 四川士达特种炭材有限公司 | Isostatic pressing graphite barrel material forming die and isostatic pressing cylindrical graphite processing method |
| CN113140402A (en) * | 2021-04-08 | 2021-07-20 | 太原科技大学 | Method and equipment for preparing anisotropic bonded magnetic ring |
-
2009
- 2009-11-17 CN CN2009201806306U patent/CN201645646U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172975A (en) * | 2011-02-18 | 2011-09-07 | 山东合创明业精细陶瓷有限公司 | Mould for preparing ceramic cartridge and method for preparing ceramic cartridge by utilizing same |
| CN102172973B (en) * | 2011-02-18 | 2013-01-23 | 山东合创明业精细陶瓷有限公司 | Special die for long bar ceramic blank bottom-pouring liquid lifting gel casting and preparation method for producing long bar ceramic by using same |
| CN102172973A (en) * | 2011-02-18 | 2011-09-07 | 山东合创明业精细陶瓷有限公司 | Special die for long bar ceramic blank bottom-pouring liquid lifting casting formation and preparation method for producing long bar ceramic by using same |
| CN103072196A (en) * | 2011-11-21 | 2013-05-01 | 常熟市创新陶瓷有限公司 | Isostatic mold |
| CN106182343A (en) * | 2016-08-17 | 2016-12-07 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery solid electrolyte ceramic pipe forming method |
| CN106182343B (en) * | 2016-08-17 | 2018-11-27 | 上海电气钠硫储能技术有限公司 | A kind of sodium-sulphur battery solid electrolyte ceramic pipe forming method |
| CN110467440B (en) * | 2019-08-23 | 2022-05-10 | 福建华清电子材料科技有限公司 | Preparation method of large-size tubular alumina ceramic |
| CN110467440A (en) * | 2019-08-23 | 2019-11-19 | 福建华清电子材料科技有限公司 | A kind of preparation method of large scale tabular alumina ceramics |
| CN110341034A (en) * | 2019-08-29 | 2019-10-18 | 济源市东方自动化设备有限公司 | A kind of ceramics inside pipe wall convex edge compacting tool set component |
| CN110341034B (en) * | 2019-08-29 | 2024-04-19 | 济源市东方自动化设备有限公司 | Pressing die assembly for convex edge of inner wall of ceramic tube |
| CN111483171B (en) * | 2020-04-22 | 2021-04-23 | 四川士达特种炭材有限公司 | Processing method for producing isostatic pressing cylindrical graphite by using isostatic pressing graphite barrel material forming die |
| CN111483171A (en) * | 2020-04-22 | 2020-08-04 | 四川士达特种炭材有限公司 | Isostatic pressing graphite barrel material forming die and isostatic pressing cylindrical graphite processing method |
| CN113140402A (en) * | 2021-04-08 | 2021-07-20 | 太原科技大学 | Method and equipment for preparing anisotropic bonded magnetic ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |