CN102078962A - Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element - Google Patents
Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element Download PDFInfo
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- CN102078962A CN102078962A CN 201010567707 CN201010567707A CN102078962A CN 102078962 A CN102078962 A CN 102078962A CN 201010567707 CN201010567707 CN 201010567707 CN 201010567707 A CN201010567707 A CN 201010567707A CN 102078962 A CN102078962 A CN 102078962A
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Abstract
The invention discloses a mould which is easy to demould a core rod and used for forming a multi-channel filter element. The mould comprises an outer mould and multiple core rods mounted in the outer mould, wherein each core rod is composed of a support tube and an elastic sleeve sleeved on the support tube; multiple through holes are formed on the wall, on which the elastic sleeve is sleeved, of each support tube; and at least one end of each core rod is an open end communicated with the exterior of the mould. The support tubes can support the core rods so as to accurately position the core rods in the outer mould, thereby basically ensuring the true position after inner bores of a filter element are formed and improving the entire quality of the filter element; when the elastic sleeve is formed, the elastic sleeve extrudes powder filled between the outer mould and the core rods from inside to outside so as to carry out compression moulding on the powder; and during demoulding, the elastic sleeve retracts so as to demould the core rods. The invention also discloses a method for forming an intermetallic compound multi-channel filter element, wherein an intermetallic compound material filled in the cavity of the mould is pressed into the multi-channel filter element by use of an isostatic pressing technology. By utilizing the method, the cold isostatic pressing manufacturing of the intermetallic compound multi-channel filter element is achieved.
Description
Technical field
The present invention relates to the forming technique of 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.
Summary of the invention
Technical problem solved by the invention provides a kind of mould that is used for moulding multichannel filter core that is easy to make the plug demoulding.
The technical solution adopted for the present invention to solve the technical problems is: this mould comprises external mold and a plurality of plug that is installed in this external mold, and described plug is made of stay pipe and the resilient sleeve that is sleeved on this stay pipe; Be with on the stay pipe tube wall of resilient sleeve and have several through holes; Each plug have at least one end for the openend of the outside conducting of mould.
After the mould that will tamp powder and good seal during use is put into the high pressure sap cavity of cold isostatic press, pressure medium enters in the pipeline of stay pipe by the compressing resilient sleeve of the through hole on its tube wall again and makes its distending from the port of plug, then by the powder of resilient sleeve extrusion packing between external mold and plug; After the moulding mould is taken out the high pressure sap cavity of cold isostatic press, thereby the expansive force that acts on resilient sleeve disappears immediately resilient sleeve is shunk, and dismantles mould at last and takes out product.
Be preferably in surface coverage one deck sealing shroud of external mold before the moulding, can prevent from like this that pressure medium from infiltrating in the mould powder is polluted from the cooperation slit of external mold.
In such scheme, the effect of stay pipe is the support elastic cover and makes its accurate localization in external mold.The effect of resilient sleeve is that from inside to outside the powder of extrusion packing between external mold and plug makes its compression moulding when moulding, and resilient sleeve is shunk so that the plug demoulding during demoulding.
As further improvement of these options, described external mold comprises the rigid enclosure that is formed by at least two separable fastenings of lobe shape part, and the drive end bearing bracket and the rear end cap that are installed in this rigid enclosure front and back end respectively.Obviously, this structure can make things convenient for, open rapidly external mold.
On this basis, the installation location for the ease of plug has on described drive end bearing bracket and the rear end cap and the suitable locating hole in the end of plug; Thereby being inserted with plug in the port of plug makes the end swelling of plug between described locating hole and plug; And the plug that is installed in the plug openend has the cavity that makes plug and the outside conducting of mould.
Because the end of plug between locating hole and plug, can make plug cooperate with the contact-making surface liquid sealing of locating hole by the plug swelling, pressure medium can only enter the inside of plug by the cavity of plug during mould molding.
For the ease of plug being inserted the plug port, the end of described plug has the resilient sleeve extension that is extended axially out from the port of stay pipe by resilient sleeve, and described plug is positioned at this resilient sleeve extension.The resilient sleeve extension has certain flexibility, is convenient to plug be inserted and it is swollen.
For the ease of plug being inserted the plug port, described locating hole is the taper hole that the aperture ecto-entad reduces gradually equally; The profile of described plug is the cone roughly the same with the tapering of this locating hole.
The present invention also can take following mode to realize sealing between plug and the external mold, and the resilient sleeve that promptly is positioned at each plug openend stretches out and is linked to be the integral body that is wrapped in the external mold surface after the turnover.Like this, no longer need to insert plug in the port of each plug, thereby simplified the structure of mould, improved the service efficiency of mould.
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 resilient sleeve distending relatively uniformly by these through holes, guarantee the Forming Quality of filter core bore area.
In addition, the present invention also provides a kind of method that is used for moulding multichannel filter core, and the inter-metallic compound material that this method has adopted equal pressing forming technology will be filled in the mold cavity is pressed into the multichannel filter core; Described mould comprises external mold and a plurality of plug that is installed in this external mold, and described plug is made of stay pipe and the resilient sleeve that is sleeved on this stay pipe; Be with on the tube wall of stay pipe of resilient sleeve and have several through holes; Each plug have at least one end for the openend of the outside conducting of mould.
Because the employed mould of said method can effectively solve the plug release problems, thereby can pass through the isostatic compaction of this mould realization, thereby produce intermetallic compound multichannel filter core inter-metallic compound material.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: thus the stay pipe in this mould can support plug with its accurate localization in external mold, therefore guaranteed the position degree behind the hole forming in the filter core substantially, promoted the total quality of filter core; Resilient sleeve from inside to outside extrusion packing powder between external mold and plug when moulding makes its compression moulding, and resilient sleeve is shunk so that the plug demoulding during 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 used for the mould structure schematic diagram of moulding multichannel filter core for the application.
Fig. 2 is the partial enlarged drawing at B place in Fig. 1.
Fig. 3 be among Fig. 1 A-A to cutaway view.
Fig. 4 is the cross sectional representation of this mould employed locator when assembling.
Fig. 5 is the another kind of structural representation of the application's mould.
Fig. 6 is the partial enlarged drawing of Fig. 5.
Fig. 7 is the structural representation of resilient sleeve among Fig. 5.
Be labeled as among the figure: external mold 1, drive end bearing bracket 101, rigid enclosure 102, sealing shroud 103, rear end cap 104, lobe shape part 105,106, pin hole 107, locating hole 108, plug 2, resilient sleeve 201, stay pipe 202, through hole 203, resilient sleeve extension 204, integral body 205, plug 3, locator 4, pilot hole 401, hole seam 402.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
Shown in Fig. 1～3.External mold 1 comprises the rigid enclosure 102 that is formed by two lobe shape part 105,106 separable fastenings, and the drive end bearing bracket 101 and the rear end cap 104 that are installed in these rigid enclosure 102 front and back ends respectively; Each plug 2 is made of stay pipe 202 and the resilient sleeve 201 that is sleeved on this stay pipe 202, and the end of each plug 2 has the resilient sleeve extension 204 that is extended axially out from the port of stay pipe 202 by resilient sleeve 201; Insert respectively in the locating hole 108 adaptive with it on drive end bearing bracket 101 and the rear end cap 104 at the two ends of each plug 2, and insertion plug 3 makes described resilient sleeve extension 204 swellings between described locating hole 108 and plug 3 in resilient sleeve extension 204; Described plug 3 is the structure of inner hollow and both ends open, thus the two ends that make each plug 2 respectively with the outside conducting of mould; Evenly be arranged at intervals with many group through holes on the tube wall of stay pipe 202 vertically, every group of through hole is made up of circumferential evenly spaced two through holes 203 again at least, thereby make resilient sleeve 201 uniform distendings by these through holes 203, guarantee the Forming Quality of product bore area.In addition, for ease of plug 3 is inserted plug 2 ports, described locating hole is that 108 apertures are by the taper hole that reduces gradually in the export-oriented mould of mould; The profile of described plug 3 is the cone roughly the same with the tapering of this locating hole 108.
In above-mentioned mould, because resilient sleeve extension 204 has certain flexibility, be convenient to plug 3 be inserted and it is swollen, like this resilient sleeve extension 204 just by swelling between locating hole 108 and plug 3, resilient sleeve extension 204 is cooperated with the contact-making surface liquid sealing of locating hole 108, so pressure medium can only enter the inside of plug 2 by the cavity of plug 3 during mould molding.In addition, in above-mentioned mould, thereby stay pipe 202 can support plug 2 with its accurate localization in external mold 1, therefore guaranteed the position degree behind the hole forming in the filter core substantially, promoted the total quality of filter core; Resilient sleeve 201 when moulding from inside to outside extrusion packing between external mold 1 and plug 2 powder and compression moulding, resilient sleeve 201 is shunk so that plug 2 demouldings during demoulding.
The concrete using method of this mould is:
At first carry out the assembling of mould.Earlier rigid enclosure 102 and rear end cap 104 are combined during assembling, and the plug 2 of packing in each locating hole 108 of rear end cap 104, this moment is not owing to also install drive end bearing bracket 101, so pack into back and built on the sand of each plug 2.These plugs 2 move in order to prevent to tamp powder, preferably use locator shown in Figure 44.This locator 4 is provided with a plurality of pilot holes 401, and the arrangement mode of locating hole 108 is consistent on the arrangement mode of these pilot holes 401 and drive end bearing bracket 101 or the rear end cap 104, and the aperture of pilot hole 401 and plug 2 are adaptive; Around these pilot holes 401, also be provided with some hole seams 402.During use, on the mould that drive end bearing bracket 101 also is not installed, be inserted in locator 4, make these pilot holes 401 put corresponding plug 2 respectively, thereby make plug 2 be supported the location, in rigid enclosure 102, add powder by the seam of the hole on the pilot hole 401 402 then, tamp the back and take out locator 4 and load onto drive end bearing bracket 101.After treating that set of molds installs, also cover sealing shroud 103 on the surface of external mold 1 again.
During moulding, to tamp and after the mould of good seal puts into the high pressure sap cavity of cold isostatic press, pressure medium enters in the pipeline of stay pipe 202 by the 203 compressing resilient sleeve 201 of the through hole on its tube wall again and makes its distending from the port of each plug 2, then by the powder of resilient sleeve 201 extrusion packings between external mold 1 and plug 2; After the moulding mould is taken out the high pressure sap cavity of cold isostatic press, thereby the expansive force that acts on resilient sleeve 201 disappears immediately resilient sleeve 201 is shunk, and dismantles mould at last and takes out product.
Shown in Fig. 3,5～7, this mould also can adopt following structure, and promptly external mold 1 comprises the rigid enclosure 102 that is formed by two lobe shape part 105,106 separable fastenings, and the drive end bearing bracket 101 and the rear end cap 104 that are installed in these rigid enclosure 102 front and back ends respectively; Each plug 2 is made of stay pipe 202 and the resilient sleeve 201 that is sleeved on this stay pipe 202, and the rear end of each plug 2 be and the openend of the outside conducting of mould that front end seals and also is positioned at drive end bearing bracket 101; The resilient sleeve 201 that is positioned at each plug 2 openend stretches out and is linked to be the integral body 205 that is wrapped in external mold 1 surface after the turnover; Evenly be arranged at intervals with many group through holes on the tube wall of stay pipe 202 vertically, every group of through hole is made up of circumferential evenly spaced two through holes 203 again at least, thereby make resilient sleeve 201 uniform distendings by these through holes 203, guarantee the Forming Quality of product bore area.
As shown in Figure 7, because the resilient sleeve 201 of each plug 2 openend stretches out and be linked to be the integral body 205 that is wrapped in external mold 1 surface after the turnover, so each resilient sleeve 201 and described whole 205 is linked to be a shape that is similar to " gloves ".During the mould assembling, each stay pipe 202 is inserted in each resilient sleeve 201, then it is axially being inserted external mold 1 from the base apertures of rear end cap 104, will be wrapped in the surface of rear end cap 104 after described whole 205 turnovers more afterwards.This structure need not to use plug to seal, thereby has simplified mould structure, has improved the service efficiency of mould.
When using above-mentioned mould, inter-metallic compound material is inserted mold cavity, will tamp then and the mould of good seal can be pressed into the inter-metallic compound material that is filled in this mold cavity the multichannel filter core after putting into the high pressure sap cavity of cold isostatic press.After the moulding mould is taken out the high pressure sap cavity of cold isostatic press, thereby the expansive force that acts on resilient sleeve disappears immediately resilient sleeve is shunk, produce certain interval between the filter core duct after this moment plug 2 and moulding, thereby can easily plug 2 be extracted out the intermetallic compound material multichannel filter core after the moulding.The employed mould of this method can effectively solve the plug release problems, thereby can pass through the isostatic compaction of this mould realization to inter-metallic compound material, thereby produces intermetallic compound multichannel filter core.
Claims (9)
1. the mould that is used for moulding multichannel filter core, it is characterized in that: this mould comprises external mold (1) and a plurality of plug (2) that is installed in this external mold (1), and described plug (2) is by stay pipe (202) and be sleeved on resilient sleeve (201) formation on this stay pipe (202); Be with on stay pipe (202) tube wall of resilient sleeve (201) and have several through holes (203); Each plug (2) have at least one end for the openend of the outside conducting of mould.
2. the mould that is used for moulding multichannel filter core as claimed in claim 1, it is characterized in that: described external mold (1) comprises the rigid enclosure (102) that is formed by the separable fastening of at least two lobe shape parts (105,106), and the drive end bearing bracket (101) and the rear end cap (104) that are installed in this rigid enclosure (102) front and back end respectively.
3. the mould that is used for moulding multichannel filter core as claimed in claim 2 is characterized in that: have the suitable locating hole (108) in end with plug (2) on described drive end bearing bracket (101) and the rear end cap (104); Be inserted with plug (3) in the port of plug (2) thus the end swelling that makes plug (2) between described locating hole (108) and plug (3); The plug (3) that is installed in plug (2) openend has the cavity that makes plug (2) and the outside conducting of mould.
4. the mould that is used for moulding multichannel filter core as claimed in claim 3, it is characterized in that: the end of described plug (2) has the resilient sleeve extension (204) that is extended axially out from the port of stay pipe (202) by resilient sleeve (201), and described plug (3) is positioned at this resilient sleeve extension (204).
5. the mould that is used for moulding multichannel filter core as claimed in claim 3 is characterized in that: the taper hole that described locating hole (108) reduces gradually for the aperture ecto-entad; The profile of described plug (3) is the roughly the same cone of tapering with this locating hole (108).
6. the mould that is used for moulding multichannel filter core as claimed in claim 1 is characterized in that: the resilient sleeve (201) that is positioned at each plug (2) openend in this mould stretches out and is linked to be the integral body (205) that is wrapped in external mold (1) surface after the turnover.
7. as the described mould that is used for moulding multichannel filter core of any claim in the claim 1～6, it is characterized in that: the surface of described external mold (1) also is enclosed with sealing shroud (103).
8. as the described mould that is used for moulding multichannel filter core of any claim in the claim 1～6, it is characterized in that: evenly be arranged at intervals with many group through holes on the tube wall of described stay pipe (202) vertically, every group of through hole is made up of circumferential evenly spaced two through holes (203) again at least.
9. be used for the method for compound multichannel filter core between forming metal, it 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; Described mould comprises external mold (1) and a plurality of plug (2) that is installed in this external mold (1), and described plug (2) is by stay pipe (202) and be sleeved on resilient sleeve (201) formation on this stay pipe (202); Be with on the tube wall of stay pipe (202) of resilient sleeve (201) and have several through holes (203); Each plug (2) have at least one end for the openend of the outside conducting of mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010567707 CN102078962B (en) | 2010-12-01 | 2010-12-01 | Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010567707 CN102078962B (en) | 2010-12-01 | 2010-12-01 | Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210192162.0A Division CN102672173B (en) | 2010-12-01 | 2010-12-01 | Die for forming multichannel filter element and method for forming multichannel filter element of intermetallic compound |
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| CN102078962A true CN102078962A (en) | 2011-06-01 |
| CN102078962B CN102078962B (en) | 2012-12-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102962464A (en) * | 2012-11-20 | 2013-03-13 | 江苏云才材料有限公司 | Asymmetrical stainless steel filter membrane tube and production method thereof |
| CN104827032A (en) * | 2015-04-28 | 2015-08-12 | 成都易态科技有限公司 | Honeycomb-shaped metal filter core forming method and mold |
| 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 |
| CN106607587A (en) * | 2015-10-21 | 2017-05-03 | 西门子能源有限公司 | Method of forming a cladding layer having an integral channel |
| CN107755707A (en) * | 2017-10-11 | 2018-03-06 | 镇江乐科信息科技有限公司 | The production method and production equipment of a kind of metal dust |
| 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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| CN201020535Y (en) * | 2007-05-18 | 2008-02-13 | 西北有色金属研究院 | Internal pressure type cold isostatic pressing mould with flange powder filtering tube |
| WO2008070636A1 (en) * | 2006-12-01 | 2008-06-12 | Ftf, Llc | Variable-density preforms |
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| CN2287066Y (en) * | 1996-11-26 | 1998-08-05 | 广州有色金属研究院 | Special mould for cold isostatic press |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962464A (en) * | 2012-11-20 | 2013-03-13 | 江苏云才材料有限公司 | Asymmetrical stainless steel filter membrane tube and production method thereof |
| CN104827032A (en) * | 2015-04-28 | 2015-08-12 | 成都易态科技有限公司 | Honeycomb-shaped metal filter core forming method and mold |
| 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 |
| CN106607587A (en) * | 2015-10-21 | 2017-05-03 | 西门子能源有限公司 | Method of forming a cladding layer having an integral channel |
| US10150184B2 (en) | 2015-10-21 | 2018-12-11 | Siemens Energy, Inc. | Method of forming a cladding layer having an integral channel |
| CN106607587B (en) * | 2015-10-21 | 2019-11-15 | 西门子能源有限公司 | Form the method with the cladding layer in channel of one |
| CN107755707A (en) * | 2017-10-11 | 2018-03-06 | 镇江乐科信息科技有限公司 | The production method and production equipment of a kind of metal dust |
| 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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