CN102672173A - Die for forming multichannel filter element and method for forming multichannel filter element of intermetallic compound - Google Patents
Die for forming multichannel filter element and method for forming multichannel filter element of intermetallic compound Download PDFInfo
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- CN102672173A CN102672173A CN2012101921620A CN201210192162A CN102672173A CN 102672173 A CN102672173 A CN 102672173A CN 2012101921620 A CN2012101921620 A CN 2012101921620A CN 201210192162 A CN201210192162 A CN 201210192162A CN 102672173 A CN102672173 A CN 102672173A
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- plug
- mould
- resilient sleeve
- filter core
- multichannel filter
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- 229910000765 intermetallic Inorganic materials 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 13
- 238000000465 moulding Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 6
- 230000008961 swelling Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 239000000843 powder Substances 0.000 abstract description 12
- 238000005056 compaction Methods 0.000 description 7
- 238000012856 packing Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 206010042674 Swelling Diseases 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 230000004807 localization Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Powder Metallurgy (AREA)
Abstract
The invention discloses a die which is capable of demolding core rods easily and is used for forming a multichannel filter element. The die comprises an outer die and a plurality of core rods arranged in the outer die, wherein the core rods consist of support pipes and elastic sleeves sleeved on the support pipes; a plurality of through holes are formed in pipe walls of the support pipes sleeved with the elastic sleeves; at least one end of each core rod is an opening end which is communicated with the outside of the die; and the elastic sleeves positioned at the opening ends of the core rods in the die extend outwards and are connected to form a whole which wraps the surface of the outer die after being turned over. According to the die, the support pipes can support the core rods, so that the core rods are positioned in the outer die accurately, so that the position tolerance of the formed inner holes of the filter element is ensured basically, and the integral quality of the filter element is improved; and the elastic sleeves are pressed to be formed by extruding powder filled between the outer die and the core rods from inside to outside, and the elastic sleeves are contracted during demolding, so that the core rods are demolded.
Description
The application is to be on December 01st, 2010 applying date, and application number is 201010567707.2, the dividing an application of the application for a patent for invention of title " method that is used for compound multichannel filter core between mould and the forming metal of moulding multichannel filter core ".
Technical field
The present invention relates to the forming technique of multichannel filter core.
Background technology
The multichannel filter core of also not processing in the market by intermetallic compound.Its reason is, with existing filter core manufacturing technology, intermetallic compound is processed the multichannel filter core and only possibly adopt 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, the plug of every elongated all will receive 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
The technical problem that the present invention solved 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 said plug is made up 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 is oppressed resilient sleeve and is made its distending through the through hole on its tube wall again in the pipeline of the port entering stay pipe of plug, then through the powder of resilient sleeve extrusion packing between external mold and plug; After the moulding mould 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 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 the further improvement to such scheme, said 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, for the ease of the installing and locating of plug, have on said drive end bearing bracket and the rear end cap and the suitable locating hole in the end of plug; Thereby be inserted with end swelling that plug makes plug in the port of plug between said 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 through the plug swelling, pressure medium can only get into the inside of plug through the cavity of plug during mould molding.
For the ease of plug being inserted the plug port, the end of said plug has the resilient sleeve extension that is extended axially out from the port of stay pipe by resilient sleeve, and said plug is positioned at this resilient sleeve extension.The resilient sleeve extension has certain flexibility, is convenient to plug is inserted and it is swollen.
For the ease of plug being inserted the plug port, said locating hole is the taper hole that the aperture ecto-entad reduces gradually equally; The profile of said plug is the cone roughly the same with the tapering of this locating hole.
The present invention also can take following mode to realize the 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 insert plug in the port of each plug, thereby simplify the structure of mould, improve 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 said 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 through 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; Said mould comprises external mold and a plurality of plug that is installed in this external mold, and said plug is made up 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 realize isostatic compaction, thereby produce intermetallic compound multichannel filter core through this mould to inter-metallic compound material.Since the multichannel filter core of also not processing in the market by intermetallic compound, 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 basically, 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 sketch map 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
Below in conjunction with accompanying drawing the present invention is done further explanation.
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 rear end cap 104 that are installed in these rigid enclosure 102 front and back ends respectively; Each plug 2 is made up 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 said resilient sleeve extension 204 swellings between said locating hole 108 and plug 3 in resilient sleeve extension 204; Said 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 through these through holes 203, guarantee the Forming Quality of product bore area.In addition, for ease of plug 3 is inserted plug 2 ports, said locating hole is that 108 apertures are by the taper hole that in the export-oriented mould of mould, reduces gradually; The profile of said 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 is 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 get into the inside of plug 2 through 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 basically, promoted the total quality of filter core; Resilient sleeve 201 is powder and the compression moulding between external mold 1 and plug 2 of from inside to outside extrusion packing when moulding, and resilient sleeve 201 is shunk so that plug 2 demouldings during demoulding.
The concrete method for using 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 in each locating hole 108 of rear end cap 104, packing into, 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 able to support the location, in rigid enclosure 102, add powder through 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; With tamping and after the mould of good seal puts into the high pressure sap cavity of cold isostatic press; Pressure medium is oppressed resilient sleeve 201 and is made its distending through the through hole on its tube wall 203 again in the pipeline of the port entering stay pipe 202 of each plug 2, then through the powder of resilient sleeve 201 extrusion packings between external mold 1 and plug 2; After the moulding mould 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.
Like Fig. 3, shown in 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 rear end cap 104 that are installed in these rigid enclosure 102 front and back ends respectively; Each plug 2 is made up 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 is and the openend of the outside conducting of mould that the front end sealing 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 through 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 said 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, afterwards again with the surface that is wrapped in rear end cap 104 after said whole 205 turnovers.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 multichannel filter core with the inter-metallic compound material that is filled in this mold cavity after putting into the high pressure sap cavity of cold isostatic press.After the moulding mould 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, thus can be easily with the intermetallic compound material multichannel filter core after the plug 2 extraction moulding.The employed mould of this method can effectively solve the plug release problems, thereby can realize the isostatic compaction to inter-metallic compound material through this mould, thereby produces intermetallic compound multichannel filter core.
Claims (8)
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 said 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; 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.
2. the mould that is used for moulding multichannel filter core as claimed in claim 1; It is characterized in that: said 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 said 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 said 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 said 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 said 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 said locating hole (108) reduces for the aperture ecto-entad gradually; The profile of said plug (3) is the roughly the same cone of tapering with this locating hole (108).
6. like the described mould that is used for moulding multichannel filter core of any claim in the claim 1～5, it is characterized in that: the surface of said external mold (1) also is enclosed with sealing shroud (103).
7. like the described mould that is used for moulding multichannel filter core of any claim in the claim 1～5; It is characterized in that: evenly be arranged at intervals with many group through holes on the tube wall of said stay pipe (202) vertically, every group of through hole is made up of circumferential evenly spaced two through holes (203) again at least.
8. 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; Said mould comprises external mold (1) and a plurality of plug (2) that is installed in this external mold (1), and said 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; 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192162.0A CN102672173B (en) | 2010-12-01 | 2010-12-01 | Die for forming multichannel filter element and method for forming multichannel filter element of intermetallic compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210192162.0A CN102672173B (en) | 2010-12-01 | 2010-12-01 | Die for forming multichannel filter element and method for forming multichannel filter element of intermetallic compound |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010567707 Division 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102672173A true CN102672173A (en) | 2012-09-19 |
| CN102672173B CN102672173B (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210192162.0A Active 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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| Country | Link |
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| CN (1) | CN102672173B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112317742A (en) * | 2020-11-04 | 2021-02-05 | 湖南安福粉末冶金有限公司 | Diesel engine powder metallurgy valve guide pipe blank compacting die |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788325A (en) * | 2019-09-10 | 2020-02-14 | 西安石油大学 | Preparation method and application of stainless steel porous filter tube |
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|---|---|---|---|---|
| CN2287060Y (en) * | 1997-03-19 | 1998-08-05 | 上海宝钢冶金建设公司工业安装工程公司 | Metal press plate |
| 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 |
| CN201871731U (en) * | 2010-12-01 | 2011-06-22 | 成都易态科技有限公司 | Mold for forming multichannel filter element |
-
2010
- 2010-12-01 CN CN201210192162.0A patent/CN102672173B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2287060Y (en) * | 1997-03-19 | 1998-08-05 | 上海宝钢冶金建设公司工业安装工程公司 | Metal press plate |
| WO2008070636A1 (en) * | 2006-12-01 | 2008-06-12 | Ftf, Llc | Variable-density preforms |
| 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 |
| CN201871731U (en) * | 2010-12-01 | 2011-06-22 | 成都易态科技有限公司 | Mold for forming multichannel filter element |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112317742A (en) * | 2020-11-04 | 2021-02-05 | 湖南安福粉末冶金有限公司 | Diesel engine powder metallurgy valve guide pipe blank compacting die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102672173B (en) | 2014-04-23 |
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Denomination of invention: Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element Effective date of registration: 20190221 Granted publication date: 20140423 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: Mould for forming multi-channel filter element and method for forming intermetallic compound multi-channel filter element Effective date of registration: 20201207 Granted publication date: 20140423 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: Intermet Technologies Chengdu Co.,Ltd. Registration number: Y2020510000111 |
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