CN104014608B - Twisting die tool is squeezed at many corners composite equal diameter angle - Google Patents
Twisting die tool is squeezed at many corners composite equal diameter angle Download PDFInfo
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- CN104014608B CN104014608B CN201410246057.XA CN201410246057A CN104014608B CN 104014608 B CN104014608 B CN 104014608B CN 201410246057 A CN201410246057 A CN 201410246057A CN 104014608 B CN104014608 B CN 104014608B
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- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 230000001808 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 230000000875 corresponding Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 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
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000000694 effects 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
- 238000007514 turning Methods 0.000 description 1
Abstract
Twisting die tool is squeezed at <b> many corners composite equal diameter angle, wherein die is a tapering body, its inside is provided with access road, distortion passage and helical duct, die embeds in the die sleeve with identical tapering, the outer race of die sleeve is equipped with heating jacket, above die, coupling is provided with drift, jack is provided with below die, large to the workpiece deformation degree putting into die entrance passage, deformation uniformity is high, equipment requirement is low, operating efficiency is high, be applicable to different distortion material, the requirement of various deformation temperature, with semi-automatic ejecting function and be easy to manufacture, high efficiency can prepare large scale, high-performance bulk ultrafine-grained materials.</b>
Description
Technical field
the present invention relates to a kind of composite die, particularly relate to a kind ofly prepare high efficiency, many corners composite equal diameter angle of large-size and high performance bulk ultrafine-grained materials squeezes twisting die tool.
Background technology
in recent years, super fine crystal material is because having the excellent mechanical property and unique physical and chemical performance that are different from traditional coarse grain material and being subject to extensive concern and research.Be developed so far, emerged many advanced technologies 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, the sever Plastic Deformation being representative with Equal Channel Angular Pressing technology is acknowledged as a kind of super fine crystal material preparation technology that is the most typical, effectively the most also most future in engineering applications.But equal channel angular pressing technology existence distortion is uneven and the low inferior problem of working (machining) efficiency, cannot be widely used in scientific research and engineering reality.
crowded turning round is the novel large plastometric set technique of one of rising gradually in recent years.Multi-pass repeated deformation can be carried out to accumulate larger plastic strain, and then improve material microstructure, improve material combination property.But workpiece cross section place shows strong anisotropy usually after squeezing twisting strain, centerand edge portion of tissue performance difference is comparatively large, and material homogeneity is poor.
conventional extruded effectively can increase the hydrostatic pressure of deformable body inside, and after crimp, longitudinally available effective length can increase greatly, but there will be common extrusion face crack.
on the basis of the above-mentioned three kinds of deformation techniques of multianalysis pluses and minuses separately, three kinds of techniques are organically combined by the mode of multichannel, continuous modification by imagination, give full play to respective advantage, by the reform and innovation to deformation technique and mould structure, the scope of application of traditional equal channel angular pressing technology, thin brilliant ability and deformation efficiency can be made further to be expanded.
Summary of the invention
in order to avoid the technique single pass heavy deformation existing for prior art is less, operating efficiency is low, crowded turns round the problems such as material homogeneity difference, 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, high efficiency can prepare large-size and high performance bulk ultrafine-grained materials.
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, lower bolster, squeeze in twisting die tool at many corners composite equal diameter angle, 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 identical tapering, 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, jack is provided with below die, jack is bolted on lower bolster, during use, workpiece is put into access road, drift extrudes downwards, by workpiece press-in distortion passage, drift lifts after extruding downwards and putting in place, put into next workpiece, continuation like this is until extruding terminates, after having extruded, as needed dismounting, start jack die to be ejected.
described die is vertical parting, left and right fabricated structure, combined die left and right two parts are connected 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 multiple cross section is mutually certain angle with Vertical Channel and is alternately connected, form the distortion passage of the many corners of continuous multi-pass, distortion channel corner is 90 °, its cross section is rectangular channel, in distortion every section of horizontal channel of passage and Vertical Channel, be equipped with one section to be made up of screw twisted shape type groove, and with distortion passage, there is the helical duct of same cross-sectional shape and size, like this for distortion provides very powerful shear action and hydrostatic pressure, and make workpiece deformation continuous, coordinate, stable, improve operating efficiency and texturing quality.
described jack is bolted on lower bolster, it is connected on positive backward leading screw by forward leading nut is corresponding with anti-silk nut, positive backward leading screw interts in the middle of die sleeve and heating jacket, and be provided with at two and revolve handle, described forward leading nut and anti-silk nut respectively connected lower support bar and upper and lower supporting plate, after extruding completes, rotation is revolved making forward leading nut and anti-silk nut move to centre simultaneously, jack upwardly, eject die, namely the bolt on die can be unclamped, be separated die, convenient taking-up in distortion passage is out of shape workpiece and clears up in time and periodic maintenance die internal modification passage.
described die sleeve entangles die, plays pressure-bearing and position-limiting action in extrusion process, prevents extrded material or mould breakage from flying out simultaneously and hurts sb.'s feelings.
described heating jacket is sleeved on die sleeve outer wall, both close contacts, and after switching on power, the thermaltransmission mode conducted by contact can be that whole secondary mould heats effectively and rapidly and is incubated according to material and progress temperature requirement.
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 the workpiece deformation degree putting into die entrance passage, deformation uniformity is high, equipment requirement is low, operating efficiency is high, be applicable to different distortion material, various deformation temperature requirement, with semi-automatic ejecting function and be easy to manufacture, high efficiency can prepare large-size and high performance bulk ultrafine-grained materials.
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, be 8. out of shape 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.
Detailed description of the invention
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, lower bolster 14, squeeze in twisting die tool at many corners composite equal diameter angle, 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 identical tapering, 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, jack 10 is provided with below die 2, jack 10 is bolted on lower bolster 14, during use, workpiece is put into access road 4, drift 3 extrudes downwards, by workpiece press-in distortion passage 8, drift 3 downwards extruding lifts after putting in place, put into next workpiece, continuation like this is until extruding terminates, after having extruded, as needed dismounting, start jack 10 die 2 to be ejected.
die 2 in figure is vertical parting, left and right fabricated structure, combined die about 2 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 multiple cross section is mutually certain angle with Vertical Channel and is alternately connected, form the distortion passage 8 of the many corners of continuous multi-pass, in distortion passage 8, corner is 90 °, its cross section is rectangular channel, in distortion every section of horizontal channel of passage 8 and Vertical Channel, be equipped with one section to be made up of screw twisted shape type groove, and with distortion passage 8, there is the helical duct 5 of same cross-sectional shape and size, like this for distortion provides very powerful shear action and hydrostatic pressure, and make workpiece deformation continuous, coordinate, stable, improve operating efficiency and texturing quality.
jack 10 in figure is bolted on lower bolster 14, it is connected on positive backward leading screw 12 by forward leading nut 11 is corresponding with anti-silk nut 17, positive backward leading screw 12 interts in the middle of die sleeve 1 with heating jacket 9, and be provided with at two and revolve 13, described forward leading nut 11 respectively connected 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 is moved to centre with anti-silk nut 17 simultaneously, jack 10 upwardly, eject die 2, namely the bolt 6 on die 2 can be unclamped, be separated die 2, convenient taking-up in distortion passage 8 is out of shape workpiece and clears up in time and periodic maintenance die 2 internal modification passage 8.
die sleeve 1 in figure entangles die 2, plays pressure-bearing and position-limiting action in extrusion process, prevents extrded material or mould breakage from flying out simultaneously and hurts sb.'s feelings.
heating jacket 9 in figure is sleeved on die sleeve 1 outer wall, both close contacts, and after switching on power, the thermaltransmission mode conducted by contact can be that whole secondary mould heats effectively and rapidly and is incubated according to material and progress temperature requirement.
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 (2)
1. twisting die tool is squeezed at more than corner 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), lower bolster (14), it is characterized in that: squeeze in twisting die tool at many corners composite equal diameter angle, 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 with in the die sleeve (1) of identical tapering, the outer race of die sleeve (1) is equipped with heating jacket (9), in die (2) top, coupling is provided with drift (3), jack (10) is provided with in die (2) below, jack (10) is bolted on lower bolster (14), it is connected on positive backward leading screw (12) by forward leading nut (11) is corresponding with anti-silk nut (17), positive backward leading screw (12) interts in the middle of die sleeve (1) with heating jacket (9), and be provided with at two and revolve (13), described forward leading nut (11) and anti-silk nut (17) respectively connected lower support bar and upper and lower supporting plate.
2. twisting die tool is squeezed at many corners composite equal diameter angle according to claim 1, 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 multiple cross section is mutually certain angle with Vertical Channel and is alternately connected, form the distortion passage (8) of the many corners of continuous multi-pass, in distortion passage (8), corner is 90 °, its cross section is rectangular channel, distortion passage (8) every section of horizontal channel and Vertical Channel in, be equipped with one section to be made up of screw twisted shape type groove, and with distortion passage (8), there is the helical duct (5) of same cross-sectional shape and size.
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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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| 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 CN104014608A (en) | 2014-09-03 |
| CN104014608B true CN104014608B (en) | 2016-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| CN112453090B (en) * | 2020-11-04 | 2022-08-02 | 山东大学 | Real-time online heating constant-temperature equal-channel angular extrusion device and method |
| CN112620370B (en) * | 2020-11-26 | 2022-09-23 | 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 |
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