CN104014608A - Multi-corner composite equal channel angular twist extrusion die - Google Patents
Multi-corner composite equal channel angular twist extrusion die Download PDFInfo
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- CN104014608A CN104014608A CN201410246057.XA CN201410246057A CN104014608A CN 104014608 A CN104014608 A CN 104014608A CN 201410246057 A CN201410246057 A CN 201410246057A CN 104014608 A CN104014608 A CN 104014608A
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- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000001125 extrusion Methods 0.000 title abstract description 5
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000000875 corresponding Effects 0.000 claims description 3
- 230000001808 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000002706 hydrostatic Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000000737 periodic Effects 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000000713 high-energy ball milling Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
Abstract
The invention provides a multi-corner composite equal channel angular twist extrusion die. The die is characterized in that a female die is a cone; an inlet channel, a deformation channel and a spiral channel are arranged inside the cone; the female die is embedded in a die sleeve with identical conicity; the periphery of the die sleeve is sleeved with a heating sleeve; a punch is arranged above the female die in a matching manner; a jack is arranged below the female die. The die has the beneficial effects that the die deforms workpieces put into the inlet channel of the die to a great extent, has high deformation uniformity, low equipment requirement and high work efficiency, meets the requirements of different deformed materials and various deformation temperatures, has the semi-automatic ejection function, is easy to manufacture and can be used for efficiently preparing blocky ultra-fine grain materials with large sizes and high performances.
Description
Technical field
the present invention relates to a kind of composite die, relate in particular to a kind of many corners composite equal diameter angle of preparing high efficiency, large-size and high performance block body ultrafine grain material and squeeze twisting die tool.
Background technology
in recent years, super fine crystal material is different from traditional coarse grain material because having good mechanical property and unique physical and chemical performance are subject to extensive concern and research.Be developed so far, emerged many advanced technologies of preparing super fine crystal material, as high-energy ball milling method, inert gases agglomeration add in-place platen press, high undercooling direct crystallization method, Amorphous Crystallization method, sever Plastic Deformation etc.Wherein, take sever Plastic Deformation that Equal Channel Angular Pressing technology is representative is acknowledged as a kind of the most typical, the most effectively and the super fine crystal material preparation technology of tool future in engineering applications.But equal channel angular pressing technology exists and is out of shape the inhomogeneous and low inferior problem of working (machining) efficiency, cannot be widely used in scientific research and engineering actual.
crowded turning round is a kind of novel large plastometric set technique of rising gradually in recent years.Can carry out multi-pass repeated deformation with the larger plastic strain of accumulation, and then improve material microstructure, improve material combination property.Yet workpiece cross section place shows strong anisotropy conventionally after crowded twisting strain, centerand edge portion of tissue performance difference is larger, and material homogeneity is poor.
conventional extruded can effectively increase the hydrostatic pressure of deformable body inside, and after crimp, longitudinal available effective length can increase greatly, but there will be common extrusion face crack.
at the above-mentioned three kinds of deformation techniques of multianalysis separately on the basis of pluses and minuses, by three kinds of techniques, the mode by multichannel, continuous modification organically combines imagination, give full play to advantage separately, by the reform and innovation to deformation technique and mould structure, can make the scope of application of traditional equal channel angular pressing technology, thin brilliant ability and deformation efficiency further be expanded.
Summary of the invention
less for fear of the existing technique single pass heavy deformation of prior art, operating efficiency is low, squeeze the problems such as material homogeneity is poor of turning round, the invention provides a kind of many corners composite equal diameter angle and squeeze twisting die tool, this mould is applicable to the requirement of different distortion material, various deformation temperature, with semi-automatic ejecting function and be easy to manufacture, can high efficiency prepare large-size and high performance block body ultrafine grain material.
the technical solution adopted for the present invention to solve the technical problems is: twisting die tool is squeezed at this many corners composite equal diameter angle, comprises die sleeve, die, drift, access road, helical duct, bolt, cope match-plate pattern, distortion passage, heating jacket, jack, forward leading nut, positive backward leading screw, revolves handle and lower bolster, at many corners composite equal diameter angle, squeeze in twisting die tool, described die is a tapering body, its inside is provided with access road, distortion passage and helical duct, die embeds in the die sleeve with the tapering that coincide, the outer race of die sleeve is equipped with heating jacket, heating jacket is that die and die sleeve heat by power supply, above die, coupling is provided with drift, below die, be provided with jack, jack is bolted on lower bolster, during use, workpiece is put into access road, drift pushes downwards, workpiece is pressed into distortion passage, drift downwards extruding lifts after putting in place, put into next workpiece, so continue until extruding finishes, after having pushed, as needed, dismantle, starting jack can eject die.
described die is vertical parting, left and right fabricated structure, combined die left and right two parts connect fastening by bolt, joint die cavity forms the distortion passage of whole secondary mould, its upper entrance is provided with access road, bottom is less than access road horizontal channel by a plurality of cross sections is mutually certain angle with Vertical Channel and is alternately connected, the distortion passage that forms the many corners of continuous multi-pass, distortion channel corner is 90 °, its cross section is rectangular channel, in every section of horizontal channel and Vertical Channel of distortion passage, being equipped with one section consists of screw twisted shape type groove, and there is the helical duct of same cross-sectional shape and size with distortion passage, like this for distortion provides very powerful shear action and hydrostatic pressure, and make workpiece deformation continuous, coordinate, stable, operating efficiency and texturing quality have been improved.
described jack is bolted on lower bolster, by forward leading nut and anti-silk, nut is corresponding is connected on positive backward leading screw for it, positive backward leading screw interts in the middle of die sleeve and heating jacket, and be provided with and revolve handle at two, described forward leading nut is being connected respectively and is going up lower support bar and upper and lower supporting plate with anti-silk nut, after extruding completes, rotation is revolved forward leading nut and anti-silk nut are moved to centre simultaneously, jack upwards promotes, eject die, can unclamp the bolt on die, separated die, convenient taking-up in distortion passage is out of shape workpiece and die internal modification passage cleared up and periodic maintenance in time.
described die sleeve entangles die, plays pressure-bearing and position-limiting action in extrusion process, prevents from that extrded material or mould breakage from flying out to hurt sb.'s feelings simultaneously.
described heating jacket is sleeved on die sleeve outer wall, both close contacts, and after switching on power, the thermaltransmission mode conducting by contact, can require heat effectively and rapidly and be incubated for whole secondary mould according to material and technological temperature.
described drift is embedded in cope match-plate pattern, and the length of drift is identical with the length of access road, more convenient like this forcing press extruding workpiece.
the invention has the beneficial effects as follows: twisting die tool is squeezed at this many corners composite equal diameter angle, large to putting into the workpiece deformation degree of die entrance passage, deformation uniformity is high, equipment requirement is low, operating efficiency is high, be applicable to the requirement of different distortion material, various deformation temperature, with semi-automatic ejecting function and be easy to manufacture, can high efficiency prepare large-size and high performance block body ultrafine grain material.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the present invention is further described.
fig. 1 is that twisting die tool sectional structure chart is squeezed at many corners composite equal diameter angle.
fig. 2 is the structural representation of helical duct.
in Fig. 1,1. die sleeve, 2. die, 3. drift, 4. access road, 5. helical duct, 6. bolt, 7. cope match-plate pattern, 8. distortion passage, 9. heating jacket, 10. jack, 11. forward leading nuts, 12. positive backward leading screws, 13. revolve handle, 14. lower bolsters, 15 support bars, 16 supporting plates, 17. anti-nuts.
The specific embodiment
twisting die tool is squeezed at this many corners composite equal diameter angle, comprises die sleeve 1, die 2, drift 3, access road 4, helical duct 5, bolt 6, cope match-plate pattern 7, distortion passage 8, heating jacket 9, jack 10, forward leading nut 11, positive backward leading screw 12, revolves 13, lower bolster 14, at many corners composite equal diameter angle, squeeze in twisting die tool, described die 2 is a tapering body, its inside is provided with access road 4, distortion passage 8 and helical duct 5, die 2 embeds in the die sleeve 1 with the tapering that coincide, the outer race of die sleeve 1 is equipped with heating jacket 9, heating jacket 9 is that die 2 and die sleeve 1 heat by power supply, above die 2, coupling is provided with drift 3, below die 2, be provided with jack 10, jack 10 is bolted on lower bolster 14, during use, workpiece is put into access road 4, drift 3 pushes downwards, workpiece is pressed into distortion passage 8, drift 3 downwards extruding lifts after putting in place, put into next workpiece, so continue until extruding finishes, after having pushed, as needed, dismantle, starting jack 10 can eject die 2.
die 2 in figure is vertical parting, left and right fabricated structure, combined die 2 left and right two parts connect fastening by bolt 6, joint die cavity forms the distortion passage 8 of whole secondary mould, its upper entrance is provided with access road 4, bottom is less than access road 4 horizontal channel by a plurality of cross sections is mutually certain angle with Vertical Channel and is alternately connected, the distortion passage 8 that forms the many corners of continuous multi-pass, in distortion passage 8, corner is 90 °, its cross section is rectangular channel, in every section of horizontal channel and Vertical Channel of distortion passage 8, being equipped with one section consists of screw twisted shape type groove, and there is the helical duct 5 of same cross-sectional shape and size with distortion passage 8, like this for distortion provides very powerful shear action and hydrostatic pressure, and make workpiece deformation continuous, coordinate, stable, operating efficiency and texturing quality have been improved.
jack 10 in figure is bolted on lower bolster 14, by forward leading nut 11 and anti-silk, nut 17 is corresponding is connected on positive backward leading screw 12 for it, positive backward leading screw 12 interts at die sleeve 1 middle with heating jacket 9, and be provided with and revolve 13 at two, described forward leading nut 11 is being connected respectively and is going up lower support bar and upper and lower supporting plate with anti-silk nut 17, after extruding completes, rotation is revolved and 13, forward leading nut 11 and anti-silk nut 17 is moved simultaneously to centre, jack 10 upwards promotes, eject die 2, can unclamp the bolt 6 on die 2, separated die 2, convenient taking-up in distortion passage 8 is out of shape workpiece and die 2 internal modification passages 8 cleared up and periodic maintenance in time.
die sleeve 1 in figure entangles die 2, plays pressure-bearing and position-limiting action in extrusion process, prevents from that extrded material or mould breakage from flying out to hurt sb.'s feelings simultaneously.
heating jacket 9 in figure is sleeved on die sleeve 1 outer wall, both close contacts, and after switching on power, the thermaltransmission mode conducting by contact, can require heat effectively and rapidly and be incubated for whole secondary mould according to material and technological temperature.
drift 3 in figure is embedded in cope match-plate pattern 7, and the length of drift 3 is identical with the length of access road 4, more convenient like this forcing press extruding workpiece.
Claims (3)
1.
twisting die tool is squeezed at many corners composite equal diameter angle, comprises die sleeve (1), die (2), drift (3), access road (4), helical duct (5), bolt (6), cope match-plate pattern (7), distortion passage (8), heating jacket (9), jack (10), forward leading nut (11), positive backward leading screw (12), revolves (13), lower bolster (14); It is characterized in that: at many corners composite equal diameter angle, squeeze in twisting die tool, described die (2) is a tapering body, its inside is provided with access road (4), distortion passage (8) and helical duct (5), die (2) embeds in the die sleeve (1) with the tapering that coincide, the outer race of die sleeve (1) is equipped with heating jacket (9), in die (2) top, coupling is provided with drift (3), in die (2) below, is provided with jack (10).
2.
twisting die tool is squeezed at many corners composite equal diameter according to claim 1 angle, it is characterized in that: die (2) is vertical parting, left and right fabricated structure, combined die (2) left and right two parts connect fastening by bolt (6), joint die cavity forms the distortion passage (8) of whole secondary mould, its upper entrance is provided with access road (4), bottom is less than access road (4) horizontal channel by a plurality of cross sections is mutually certain angle with Vertical Channel and is alternately connected, the distortion passage (8) that forms the many corners of continuous multi-pass, in distortion passage (8), corner is 90 °, its cross section is rectangular channel, in every section of horizontal channel and Vertical Channel of distortion passage (8), being equipped with one section consists of screw twisted shape type groove, and there is the helical duct (5) of same cross-sectional shape and size with distortion passage (8).
3.
twisting die tool is squeezed at many corners composite equal diameter according to claim 1 angle, it is characterized in that: jack (10) is bolted on lower bolster (14), it is by forward leading nut (11) and corresponding being connected on positive backward leading screw (12) of anti-silk nut (17), positive backward leading screw (12) interts at die sleeve (1) and heating jacket (9) middle, and at two, be provided with and revolve (13), described forward leading nut (11) and an anti-silk nut (17) are being connected respectively go up lower support bar and supporting plate up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246057.XA CN104014608B (en) | 2014-06-05 | 2014-06-05 | Twisting die tool is squeezed at many corners composite equal diameter angle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410246057.XA CN104014608B (en) | 2014-06-05 | 2014-06-05 | Twisting die tool is squeezed at many corners composite equal diameter angle |
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| CN104014608A true CN104014608A (en) | 2014-09-03 |
| CN104014608B CN104014608B (en) | 2016-01-06 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344730A (en) * | 2015-09-26 | 2016-02-24 | 山东建筑大学 | Method for preparing nano copper wire through cold drawing in fylfot equal-channel mold cavity |
| CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
| CN112453090A (en) * | 2020-11-04 | 2021-03-09 | 山东大学 | Real-time online heating constant-temperature equal-channel angular extrusion device and method |
| CN112620370A (en) * | 2020-11-26 | 2021-04-09 | 江苏科技大学 | Method for preparing superfine crystal magnesium alloy |
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| JPS5533869A (en) * | 1978-09-01 | 1980-03-10 | Machiyama Seisakusho:Kk | Molding of armoring of plastic manufactured goods or the like |
| CN2690068Y (en) * | 2003-06-21 | 2005-04-06 | 大连理工大学 | Device for preparing super fine grain crystal pipe by equal passage corner extrusion |
| CN1718810A (en) * | 2005-07-13 | 2006-01-11 | 哈尔滨工业大学 | Method and device for preparing magnesium alloy semi solid state blank |
| CN201044679Y (en) * | 2007-01-04 | 2008-04-09 | 冯召文 | Partial adjustable discretion type bed mattress |
| CN202387762U (en) * | 2011-12-14 | 2012-08-22 | 合肥工业大学 | Equal channel angular pressing and torsion deformation mold for large plastic forming process |
| CN103252377A (en) * | 2013-04-25 | 2013-08-21 | 南京航空航天大学 | Mould of pure titanium equal channel angular extrusion and process method |
| CN203853392U (en) * | 2014-06-05 | 2014-10-01 | 徐州工程学院 | Multi-corner composite equal channel angular twist extrusion die |
-
2014
- 2014-06-05 CN CN201410246057.XA patent/CN104014608B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5533869A (en) * | 1978-09-01 | 1980-03-10 | Machiyama Seisakusho:Kk | Molding of armoring of plastic manufactured goods or the like |
| CN2690068Y (en) * | 2003-06-21 | 2005-04-06 | 大连理工大学 | Device for preparing super fine grain crystal pipe by equal passage corner extrusion |
| CN1718810A (en) * | 2005-07-13 | 2006-01-11 | 哈尔滨工业大学 | Method and device for preparing magnesium alloy semi solid state blank |
| CN201044679Y (en) * | 2007-01-04 | 2008-04-09 | 冯召文 | Partial adjustable discretion type bed mattress |
| CN202387762U (en) * | 2011-12-14 | 2012-08-22 | 合肥工业大学 | Equal channel angular pressing and torsion deformation mold for large plastic forming process |
| CN103252377A (en) * | 2013-04-25 | 2013-08-21 | 南京航空航天大学 | Mould of pure titanium equal channel angular extrusion and process method |
| CN203853392U (en) * | 2014-06-05 | 2014-10-01 | 徐州工程学院 | Multi-corner composite equal channel angular twist extrusion die |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344730A (en) * | 2015-09-26 | 2016-02-24 | 山东建筑大学 | Method for preparing nano copper wire through cold drawing in fylfot equal-channel mold cavity |
| CN105344730B (en) * | 2015-09-26 | 2017-08-04 | 山东建筑大学 | The method that the passage die cavity cold drawings such as Swastika fonts prepare Nanometer Copper wire rod |
| CN106825097A (en) * | 2017-04-01 | 2017-06-13 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
| CN106825097B (en) * | 2017-04-01 | 2018-06-19 | 哈尔滨理工大学 | A kind of Equal-channel Angular Pressing and reciprocating crowded torsion compound molding device and method |
| CN112453090A (en) * | 2020-11-04 | 2021-03-09 | 山东大学 | Real-time online heating constant-temperature equal-channel angular extrusion device and method |
| CN112620370A (en) * | 2020-11-26 | 2021-04-09 | 江苏科技大学 | Method for preparing superfine crystal magnesium alloy |
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| CN104014608B (en) | 2016-01-06 |
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