CN102133768A - Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds - Google Patents
Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds Download PDFInfo
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- CN102133768A CN102133768A CN 201010617637 CN201010617637A CN102133768A CN 102133768 A CN102133768 A CN 102133768A CN 201010617637 CN201010617637 CN 201010617637 CN 201010617637 A CN201010617637 A CN 201010617637A CN 102133768 A CN102133768 A CN 102133768A
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- mould
- filter core
- cold isostatic
- stay pipe
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- 238000005056 compaction Methods 0.000 title claims abstract description 24
- 229910000765 intermetallic Inorganic materials 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 238000009434 installation Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 239000000843 powder Substances 0.000 abstract description 13
- 239000002184 metal Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000919 ceramic Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
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Abstract
The invention discloses a cold isostatic compaction mould for multi-channel filter elements and a method for producing multi-channel filter elements made of intermetallic compounds by using the mould. The mould comprises an external rubber sleeve and a plurality of core rods, wherein the two ends of the external rubber sleeve are sealed, and the core rods are axially inserted and fixed in the external rubber sleeve from an end of the external rubber sleeve; each core rod is composed of a supporting tube and an internal expanding sleeve sleeved on the supporting tube; and the wall of the supporting tube sleeved with the internal expanding sleeve is provided with a plurality of through holes, at least one end of each core rod is an opening end communicated with the outside of the mould. Because the external rubber sleeve and the internal expanding sleeve extrude powder simultaneously in the process of cold isostatic compaction, the pressure can be evenly applied on the whole internal and external surfaces of a product, so that the density of the product is evener, and the internal quality of the product is higher; and in the process of demoulding, the external rubber sleeve and the internal expanding sleeve are simultaneously separated from the surface of the product, which is more beneficial for demoulding. The mould disclosed by the invention is applicable for the forming of various materials such as ceramic powder, metal powder or intermetallic compound materials. By using the method disclosed by the invention, multi-channel filter elements made of intermetallic compounds can manufacture by cold isostatic compaction.
Description
Technical field
The present invention relates to the cold isostatic compaction technology of multichannel filter core, be specifically related to multichannel filter core cold isostatic compaction mould and use this mould to produce the method for intermetallic compound multichannel filter core.
Background technology
In the market also less than the multichannel filter core of making by intermetallic compound.Its reason is, with existing filter core manufacturing technology, intermetallic compound be made the multichannel filter core and only may be adopted the isostatic compaction method, and still not have the suitable mould that the multichannel filter core is carried out isostatic compaction at present.Realistic saying if those skilled in the art want to develop a kind of mould that is used for the multichannel filter core is carried out isostatic compaction, is designed to comprise that with this mould external mold and a plurality of structure that is installed in the plug in this external mold should be conspicuous.But, only be that said structure is not sufficient to meet the demands.Therefore because pressure medium can apply high pressure to mould when isostatic compaction, every elongated plug of shape all will be subjected to the extruding of powder on every side and bend, thereby cause the plug can't the demoulding.Because this problem also can't be resolved at present, therefore also just limited the production of intermetallic compound multichannel filter core.
By the application's applicant application, application number provides the method for compound multichannel filter core between a kind of mould that is used for moulding multichannel filter core and forming metal for 201010567707.2 for the application for a patent for invention file.This application has proposed by plug being designed to by stay pipe and being sleeved on the structure that the resilient sleeve on this stay pipe constitutes, and has several through holes on the stay pipe tube wall of resilient sleeve and each plug has at least one end to solve the problem of the plug demoulding for the technological means such as openend with the outside conducting of mould being with.But because this application is more paid close attention to the smoothness of product external surfaces, therefore the rigid enclosure of having selected to be formed by at least two separable fastenings of lobe shape part is as external mold.
Summary of the invention
Technical problem solved by the invention provides a kind of multichannel filter core cold isostatic compaction mould.
The technical solution adopted for the present invention to solve the technical problems is: multichannel filter core cold isostatic compaction mould, this mould comprises sealed at both ends outer rubber cover and the many plugs of end axis in being inserted and secured on this outer rubber cover from the outer rubber cover, each plug is made of stay pipe and the inner expension cap that is sleeved on this stay pipe, be with on the stay pipe tube wall of inner expension cap and have several through holes, every plug have at least one end for the openend of the outside conducting of mould.
This mould using method is: the mould that will tamp powder and good seal is put into the high pressure sap cavity of cold isostatic press, this moment, the outer rubber cover was affected by a pressure medium inside contraction, simultaneously, part pressure medium enters in the pipeline of stay pipe by the compressing inner expension cap of the through hole on its tube wall again and makes its distending from the openend of plug, thereby by outer rubber cover and the inner expension cap powder of extrusion packing between outer rubber cover and plug simultaneously; After the moulding mould is taken out the high pressure sap cavity of cold isostatic press, inner expension cap dwindled after isostatic pressure disappeared, and the outer rubber cover swells, and can very easily dismantle mould and take out product.
In such scheme, the effect of stay pipe is to support inner expension cap and make its accurate localization in the outer rubber cover.The effect of inner expension cap is from inside to outside the powder of extrusion packing between outer rubber cover and plug when moulding, shrinks so that the plug demoulding during demoulding.The effect of outer rubber cover is the powder of extrusion packing between outer rubber cover and plug of ecto-entad when moulding, swells during the demoulding so that the product external surfaces demoulding.Because outer rubber overlaps and inner expension cap while compaction of powders during moulding, put on the whole surfaces externally and internally of product with can making isostasy, make product density more even, the product internal soundness is higher; Outer rubber cover and inner expension cap break away from from product surface simultaneously during the demoulding, are more conducive to the demoulding.
As further improvement of these options, ecto-entad is equipped with obstruction of front end steel and front end rubber stopper successively in the front port of rubber sleeve outside, has the plug that position, back correspondence is installed on obstruction of front end steel and the front end rubber stopper locating hole is installed; Ecto-entad is equipped with rear end steel obstruction and rear end rubber stopper successively in the rear port of rubber sleeve outside, has plug equally on the rubber stopper of rear end locating hole is installed; Each plug that the blind end of described each plug stops up from the front end steel is respectively installed locating hole and is inserted on the rubber stopper of rear end corresponding plug and installs in the locating hole.
The characteristics of said structure are: the entire die die cavity is actually by outer rubber cover, inner expension cap, front end rubber stopper and rear end rubber stopper and constitutes, oppress mutually between outer rubber cover and front end rubber stopper and the rear end rubber stopper and between inner expension cap and front end rubber stopper and the rear end rubber stopper during moulding, the dusty material good sealing of formation to being filled in the mold cavity, thus surface quality of products guaranteed; The front end steel stops up and steel obstruction in rear end then is the critical component that guarantees the mold integral rigidity, and plays the effect of being located by connecting between external rubber sleeve and the plug.
The present invention also further realizes the sealing between plug and the outer rubber cover in the following way, the inner expension cap that promptly in this mould, is positioned at each plug openend stretch out and be linked to be a turnover after be wrapped in the surperficial integral body of described outer rubber cover.This sealing means is not only simple in structure, and sealing effectiveness is outstanding.
In order to guarantee the formed precision of product endoporus, the present invention also evenly is arranged at intervals with many group through holes vertically on the tube wall of described stay pipe, and every group of through hole is made up of circumferential evenly spaced two through holes again at least.Make inner expension cap distending relatively uniformly by these through holes, guarantee the Forming Quality of filter core bore area.
In addition, the stay pipe that is positioned at each plug openend in this mould also is fixed on the same location-plate, thereby fixes each plug by this location-plate, can realize these plugs are inserted the outer rubber cover simultaneously, has improved the packaging efficiency of mould.
The present invention also provides a kind of production method of intermetallic compound multichannel filter core, and the inter-metallic compound material that this method adopts equal pressing forming technology will be filled in the mold cavity is pressed into the multichannel filter core; This mould comprises sealed at both ends outer rubber cover and the many plugs of end axis in being inserted and secured on this outer rubber cover from the outer rubber cover, each plug is made of stay pipe and the inner expension cap that is sleeved on this stay pipe, be with on the stay pipe tube wall of inner expension cap and have several through holes, every plug have at least one end for the openend of the outside conducting of mould.
Wherein, ecto-entad is equipped with obstruction of front end steel and front end rubber stopper successively in the front port of rubber sleeve outside, has the plug that position, back correspondence is installed on obstruction of front end steel and the front end rubber stopper locating hole is installed; Ecto-entad is equipped with rear end steel obstruction and rear end rubber stopper successively in the rear port of rubber sleeve outside, has plug on the rubber stopper of rear end equally locating hole is installed; Each plug that the blind end of described each plug stops up from the front end steel is respectively installed locating hole and is inserted on the rubber stopper of rear end corresponding plug and installs in the locating hole.
Said method passes through the isostatic compaction of its mould structure realization to inter-metallic compound material, thereby produces intermetallic compound multichannel filter core.Owing to the multichannel filter core of also not made by intermetallic compound in the market, and the appearance of this method has solved the manufacturing issue of intermetallic compound multichannel filter core.
The invention has the beneficial effects as follows: outer rubber overlaps and inner expension cap while compaction of powders during owing to moulding, puts on the whole surfaces externally and internally of product with can making isostasy, makes product density more even, and the product internal soundness is higher; Outer rubber cover and inner expension cap break away from from product surface simultaneously during the demoulding, are more conducive to the demoulding.This mould is applicable to the moulding of multiple material, such as ceramic powders, metal dust or inter-metallic compound material.The inventive method has solved the manufacturing issue of the cold isostatic compaction of intermetallic compound multichannel filter core.
Description of drawings
Fig. 1 is the structural representation of multichannel filter core cold isostatic compaction mould of the present invention.
Fig. 2 is the partial enlarged drawing at A place among Fig. 1.
Be labeled as among the figure: rear end steel obstruction 1, rear end rubber stopper 2, outer rubber cover 3, sealing shroud 4, inner expension cap 5, stay pipe 6, integral body 7, front end rubber stopper 8, front end steel obstruction 9, location-plate 10, through hole 11, plug 12.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
Multichannel filter core cold isostatic compaction mould shown in Fig. 1～2, this mould comprises the plug 12 of outer rubber cover 3 and many one end sealings and other end opening, ecto-entad is equipped with obstruction 9 of front end steel and front end rubber stopper 8 successively in the front port of rubber sleeve 3 outside, has the plug that position, back correspondence is installed on obstruction 9 of front end steel and the front end rubber stopper 8 locating hole is installed; Ecto-entad is equipped with rear end steel obstruction 1 and rear end rubber stopper 2 successively in the rear port of rubber sleeve 3 outside, has plug equally on rear end rubber stopper 2 locating hole is installed; The blind end of described each plug 12 stops up each plug on 9 from the front end steel respectively and locating hole is installed is inserted on the rear end rubber stopper 2 corresponding plug and installs in the locating hole, and the openend of each plug 12 then is positioned at the front end steel and stops up 9 outside; Described each plug 12 is made of stay pipe 6 and the inner expension cap 5 that is sleeved on this stay pipe 6, be with on stay pipe 6 tube walls of inner expension cap 5 and have several through holes 11, the inner expension cap 5 that is positioned at each plug 12 openend stretch out and be linked to be a turnover after be wrapped in the integral body 7 that described outer rubber overlaps 3 surfaces, therefore each inner expension cap 5 and described whole 7 is linked to be a shape that is similar to " gloves ", and the stay pipe 6 of each plug 12 openend all is fixed on the same location-plate 10 simultaneously.
Use the method for above-mentioned mould production intermetallic compound multichannel filter core as follows:
1) assembling process of mould
At first front end rubber stopper 8, front end steel being stopped up 9 puts in the front port of outer rubber cover 3 successively, bloated core (being the part that is used to insert stay pipe 6 on the inner expension cap 5) with inner expension cap 5 penetrates plug installation locating hole corresponding in front end rubber stopper 8 and the front end steel obstruction 9 respectively then, overlaps 3 surfaces with being wrapped in described outer rubber after integral body 7 turnovers then; Afterwards, each stay pipe 6 on the location-plate 10 is inserted from each bloated core hole of inner expension cap 5, the core that expands uprightly is evenly distributed in the outer rubber cover 3, again from compound powder and evenly tamping between rear end (i.e. upper end) filling metal of outer rubber cover 3; Then, successively rear end rubber stopper 2, rear end steel being stopped up 1 packs in the rear port of outer rubber cover 3, and suit sealing shroud 4 on the rear end of rubber sleeve 3 outside, with integral body 7 and sealing shroud 4 and outer rubber cover 3 sealing in a down-to-earth manner, just mould can be put into cold isostatic press and suppress at last.
2) formed product and knockout course
After mould being put into the high pressure sap cavity of cold isostatic press, outer rubber cover 3 is affected by a pressure medium inside contraction at this moment, simultaneously, part pressure medium enters in the pipeline of stay pipe 6 by the 11 compressing inner expension caps 5 of the through hole on its tube wall again and makes its distending from the openend of plug 12, thereby the intermetallic compound powder between outer rubber cover 3 and plug 12 by outer rubber cover 3 and 5 while of inner expension cap extrusion packing makes product density more even; After the moulding mould is taken out the high pressure sap cavity of cold isostatic press, inner expension cap 5 dwindled after isostatic pressure disappeared, and outer rubber cover 3 swells, and can very easily dismantle mould and take out product.
Claims (8)
1. multichannel filter core cold isostatic compaction mould, it is characterized in that: this mould comprises sealed at both ends outer rubber cover (3) and the many plugs (12) of end axis in being inserted and secured on this outer rubber cover (3) from outer rubber cover (3), each plug (12) is made of stay pipe (6) and the inner expension cap (5) that is sleeved on this stay pipe (6), be with on stay pipe (6) tube wall of inner expension cap (5) and have several through holes (11), every plug (12) have at least one end for the openend of the outside conducting of mould.
2. multichannel filter core cold isostatic compaction mould as claimed in claim 1, it is characterized in that: ecto-entad is equipped with the front end steel successively and stops up (9) and front end rubber stopper (8) in the front port of rubber sleeve (3) outside, and the front end steel stops up the plug that has position, installation back correspondence on (9) and the front end rubber stopper (8) locating hole is installed; Ecto-entad is equipped with the rear end steel successively and stops up (1) and rear end rubber stopper (2) in the rear port of rubber sleeve (3) outside, has plug equally on rear end rubber stopper (2) locating hole is installed; The blind end of described each plug (12) is inserted in the upward corresponding plug installation of rear end rubber stopper (2) locating hole from each plug installation locating hole that the front end steel stops up on (9) respectively.
3. multichannel filter core cold isostatic compaction mould as claimed in claim 1 is characterized in that: the inner expension cap (5) that is positioned at each plug (12) openend in this mould stretches out and is linked to be the integral body (7) that is wrapped in described outer rubber cover (3) surface after the turnover.
4. multichannel filter core cold isostatic compaction mould as claimed in claim 1 is characterized in that: evenly be arranged at intervals with many group through holes on the tube wall of described stay pipe (6) vertically, every group of through hole is made up of circumferential evenly spaced two through holes (11) again at least.
5. multichannel filter core cold isostatic compaction mould as claimed in claim 1 is characterized in that: the stay pipe (6) that is positioned at each plug (12) openend in this mould all is fixed on the same location-plate (10).
6. the production method of intermetallic compound multichannel filter core is characterized in that: the inter-metallic compound material that adopts equal pressing forming technology will be filled in the mold cavity is pressed into the multichannel filter core; This mould comprises sealed at both ends outer rubber cover (3) and the many plugs (12) of end axis in being inserted and secured on this outer rubber cover (3) from outer rubber cover (3), each plug (12) is made of stay pipe (6) and the inner expension cap (5) that is sleeved on this stay pipe (6), be with on stay pipe (6) tube wall of inner expension cap (5) and have several through holes (11), every plug (12) have at least one end for the openend of the outside conducting of mould.
7. the production method of intermetallic compound multichannel filter core as claimed in claim 6, it is characterized in that: ecto-entad is equipped with the front end steel successively and stops up (9) and front end rubber stopper (8) in the front port of rubber sleeve (3) outside, and the front end steel stops up the plug that has position, installation back correspondence on (9) and the front end rubber stopper (8) locating hole is installed; Ecto-entad is equipped with the rear end steel successively and stops up (1) and rear end rubber stopper (2) in the rear port of rubber sleeve (3) outside, has plug on the rear end rubber stopper (2) equally locating hole is installed; The blind end of described each plug (12) is inserted in the upward corresponding plug installation of rear end rubber stopper (2) locating hole from each plug installation locating hole that the front end steel stops up on (9) respectively.
8. the production method of intermetallic compound multichannel filter core as claimed in claim 6 is characterized in that: the inner expension cap (5) that is positioned at each plug (12) openend in this mould stretches out and is linked to be the integral body (7) that is wrapped in described outer rubber cover (3) surface after the turnover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617637 CN102133768B (en) | 2010-12-31 | 2010-12-31 | Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617637 CN102133768B (en) | 2010-12-31 | 2010-12-31 | Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102133768A true CN102133768A (en) | 2011-07-27 |
| CN102133768B CN102133768B (en) | 2013-01-02 |
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|---|---|---|---|
| CN 201010617637 Active CN102133768B (en) | 2010-12-31 | 2010-12-31 | Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds |
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Cited By (7)
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| CN102294483A (en) * | 2011-09-06 | 2011-12-28 | 西北有色金属研究院 | Demoulding method for powder cold-press formed pipe blank |
| CN102490256A (en) * | 2011-12-02 | 2012-06-13 | 赵德臻 | Circumferential isostatic pressing device for ceramic tube |
| CN103112195A (en) * | 2013-01-31 | 2013-05-22 | 成都易态科技有限公司 | Isostatic pressing filter element molding die and end sealing elements thereof |
| CN103585897A (en) * | 2013-11-27 | 2014-02-19 | 南京工业大学 | Multi-channel ceramic/metal composite membrane and preparation method thereof |
| CN104942285A (en) * | 2015-06-30 | 2015-09-30 | 成都易态科技有限公司 | Forming method and mold for honeycomb intermetallic compound filter element |
| CN110788325A (en) * | 2019-09-10 | 2020-02-14 | 西安石油大学 | Preparation method and application of stainless steel porous filter tube |
| CN116652183A (en) * | 2023-05-06 | 2023-08-29 | 华中科技大学 | Array arc-shaped hole structural member, forming system thereof and powder metallurgy preparation method |
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| CN103585897B (en) * | 2013-11-27 | 2016-02-24 | 南京工业大学 | Multi-channel ceramic/metal composite membrane and preparation method thereof |
| CN104942285A (en) * | 2015-06-30 | 2015-09-30 | 成都易态科技有限公司 | Forming method and mold for honeycomb intermetallic compound filter element |
| CN110788325A (en) * | 2019-09-10 | 2020-02-14 | 西安石油大学 | Preparation method and application of stainless steel porous filter tube |
| CN116652183A (en) * | 2023-05-06 | 2023-08-29 | 华中科技大学 | Array arc-shaped hole structural member, forming system thereof and powder metallurgy preparation method |
| CN116652183B (en) * | 2023-05-06 | 2024-02-02 | 华中科技大学 | Array arc-shaped hole structural member, forming system thereof and powder metallurgy preparation method |
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Denomination of invention: Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds Effective date of registration: 20141121 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: 2014510000037 |
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Denomination of invention: Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds Effective date of registration: 20161118 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: 2016510000066 |
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Date of cancellation: 20190114 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: 2016510000066 |
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Denomination of invention: Cold isostatic compaction mould for multi-channel filter elements and method for producing multi-channel filter elements made of intermetallic compounds Effective date of registration: 20190221 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: 2019510000017 |
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Denomination of invention: Cold isostatic pressing mould for multi-channel filter element and production method of intermetallic compound multi-channel filter element Effective date of registration: 20201207 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: Intermet Technologies Chengdu Co.,Ltd. Registration number: Y2020510000111 |
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Date of cancellation: 20211230 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: Y2020510000111 |
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Denomination of invention: Cold isostatic pressing forming die for multi-channel filter element and production method of intermetallic compound multi-channel filter element Effective date of registration: 20220110 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: Y2022510000011 |
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Denomination of invention: Cold Isostatic Pressing Mold for Multi channel Filter Element and Production Method of Intermetallic Compound Multi channel Filter Element Effective date of registration: 20231226 Granted publication date: 20130102 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: INTERMET TECHNOLOGIES CHENGDU Co.,Ltd. Registration number: Y2023980074368 |
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