CN105107914A - High-pressure torsion forming machine - Google Patents
High-pressure torsion forming machine Download PDFInfo
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- CN105107914A CN105107914A CN201510504325.8A CN201510504325A CN105107914A CN 105107914 A CN105107914 A CN 105107914A CN 201510504325 A CN201510504325 A CN 201510504325A CN 105107914 A CN105107914 A CN 105107914A
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- forming machine
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- pressure torsion
- torsion forming
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Abstract
The invention discloses a high-pressure torsion forming machine which is characterized by comprising a rack body (1), a movable mould (2) and a fixed mould (3), a hydraulic oil cylinder (4) and a hydraulic motor (5), wherein the movable mould (2) and the fixed mould (3) are vertically and symmetrically arranged on the rack body (1); the hydraulic oil cylinder (4) is arranged on the rack body (1) and the output end of the hydraulic oil cylinder (4) is fixedly connected with the movable mould (2); the hydraulic motor (5) is arranged on the rack body (1) and the output end of the hydraulic motor (5) is fixedly connected with the fixed mould (3); the output end of the hydraulic oil cylinder (4) drives the movable mould (2) to do vertical reciprocating motion and provide axial compressive force; and the output end of the hydraulic motor (5) drives fixed mould (3) to rotate at a constant speed and provide tangential shear torque. The high-pressure torsion forming machine disclosed by the invention has the advantages as follows: a sample is enabled to generate axial compression and tangential shear plastic deformation, material grains are refined and comprehensive mechanical properties of the material are improved.
Description
Technical field
the present invention relates to a kind of high pressure torsion forming machine.
Background technology
high pressure torsion be first to be proposed in the fifties in last century end by the former Russian scholar and carry out testing, theoretical research, be then progressively applied in actual production.Soviet Union scholar has carried out experimental study to high pressure torsion Combined Loading manufacturing process on YNM-30T universal testing machine.To the nineties in last century, this method is improved by the people such as R.Z.Valiev and for the change of institutional framework after the phase transformation under research material large deformation and large plastic deformation, and find after the serious torsional deflection under high pressure, material internal defines the even structure of high-angle boundary, the performance of material also there occurs the change of matter, thus become a kind of new method of preparing bulk nanostructured material and be considered to be hopeful one of effective way realizing suitability for industrialized production most, the research of comprehensive Chinese scholars shows: high pressure torsion tool compared with jumping-up has an enormous advantage, as impelled distortion evenly, reduce resistance of deformation, increase deflection etc.
a large amount of experiments is verified, and it is a kind of effective method that high pressure torsion prepares block grained material.But also there is the following problem at present in high pressure and torsion: the adjustment deformation velocity of high pressure torsion and dependent variable are difficult to control, and can only produce a small amount of grained material, and production efficiency is low, cannot carry out industrialized large-scale production.
although high pressure and torsion also also exists above problems, but it still has vast potential for future development, at present industry-by-industry field is present in the market demand of sub-micron, nano structural material, such as aviation, traffic, medicine equipment, sports goods, electronic technology etc., and high pressure and torsion is the effective processing method of producing block sub-micron, nanometer grained material at present.Therefore the present invention devises a kind of high pressure torsion forming machine.
Summary of the invention
the present invention seeks to: not only structure is simple to provide one, control accurately high, and refiner material crystal grain, and be convenient to the high pressure torsion forming machine improving material comprehensive mechanical property.
technical scheme of the present invention is: a kind of high pressure torsion forming machine, comprise frame body, be symmetrically set in the dynamic model in described frame body and cover half up and down, to be located in described frame body and the hydraulic jack that is fixedly connected with described dynamic model of its output, and to be located in described frame body and the hydraulic motor that is fixedly connected with described cover half of its output, the output of described hydraulic jack drives described dynamic model to do and moves up and down and provide axial compressive force, and the output of described hydraulic motor drives described cover half at the uniform velocity to rotate and provides tangential cutting torsion.
as preferred technical scheme, described high pressure torsion forming machine also comprises fuel tank, the hydraulic pump be connected with described fuel tank, and the pressure-control valve be connected with described hydraulic pump, described hydraulic jack is all connected with described pressure-control valve by hydraulic oil pipe with described hydraulic motor.
as preferred technical scheme, described high pressure torsion forming machine also comprises the console be connected with described pressure-control valve, controls by console the process that pressure is twisted into shape.
as preferred technical scheme, be provided with the groove for placing sample at the upper surface of described cover half, the size of described groove is corresponding with described dynamic model die head, effectively prevents sample generation radial displacement.
as preferred technical scheme, the central shaft of described dynamic model overlaps with the pivot of described cover half.
advantage of the present invention is:
1. high pressure torsion forming machine of the present invention makes sample produce axial compression and tangential plastic deformation of shearing, refiner material crystal grain, and the comprehensive mechanical property improving material;
2. hydraulic pump of the present invention by pressure-control valve be supplied to hydraulic jack move downward and hydraulic motor rotate required drive oil, hydraulic jack is supplied to the pressure of dynamic model extruded sample from top to bottom, hydraulic motor is supplied to the moment of torsion that cover half drives sample to rotate, pressure-control valve forms required pressure and moment of torsion control simultaneously, thus realizes the accurate control of deformation velocity and dependent variable;
3. the present invention can not only widen the application of traditional plastic process technology, and is expected to the performance increasing substantially traditional material, will bring huge economic and social benefit.
Accompanying drawing explanation
below in conjunction with drawings and Examples, the invention will be further described:
fig. 1 is the structural representation of high pressure torsion forming machine of the present invention;
fig. 2 is the fundamental diagram of high pressure torsion forming machine of the present invention;
wherein: 1 frame body, 2 dynamic models, 3 cover half, 4 hydraulic jacks, 5 hydraulic motors, 6 fuel tanks, 7 hydraulic pumps, 8 pressure-control valves, 9 hydraulic oil pipes, 10 consoles, 11 samples.
Detailed description of the invention
embodiment: with reference to shown in Fig. 1,2, a kind of high pressure torsion forming machine, comprise frame body 1, be symmetrically set in the dynamic model 2 in frame body 1 and cover half 3 up and down, to be located in frame body 1 and the hydraulic jack 4 that is fixedly connected with dynamic model 2 of its output, and to be located in frame body 1 and the hydraulic motor 5 that is fixedly connected with cover half 3 of its output, the output of this hydraulic jack 4 drives dynamic model 2 to do and moves up and down and provide axial compressive force, and the output band active and inactive mold 3 of this hydraulic motor 5 at the uniform velocity rotates and provides tangential cutting torsion.
high pressure torsion forming machine of the present invention also comprises fuel tank 6, the hydraulic pump 7 be connected with fuel tank 6, and the pressure-control valve 8 be connected with hydraulic pump 7, and hydraulic jack 4 is all connected with pressure-control valve 8 by hydraulic oil pipe 9 with hydraulic motor 5.
high pressure torsion forming machine of the present invention also comprises the console 10 be connected with pressure-control valve 8, controls by console 10 process that pressure is twisted into shape.
the present invention is provided with the groove for placing sample 11 at the upper surface of cover half 3, and the size of groove is corresponding with dynamic model 2 die head, and the central shaft of dynamic model 2 overlaps with the pivot of cover half 3, effectively prevents sample 11 from radial displacement occurring.
operation principle of the present invention as shown in Figure 2, sample 11 is placed in the groove of cover half 3 upper surface, hydraulic pump 7 is supplied to hydraulic jack 4 by pressure-control valve 8 and moves downward and rotate required drive oil with hydraulic motor 5, hydraulic jack 4 is supplied to the pressure of dynamic model 2 extruded sample 11 from top to bottom, hydraulic motor 5 is supplied to the moment of torsion that cover half 3 drives sample 11 to rotate, pressure-control valve 8 forms required pressure and moment of torsion control simultaneously, the moment of torsion that its cross section applies is acted on by downward pressure and active friction, sample 11 is impelled to produce axial compression and tangential detrusion, its sample 11 internal material institutional framework is made to create very large change, crystallite dimension is by refinement, even reach nanoscale, to improve its mechanical property.
above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (5)
1. a high pressure torsion forming machine, it is characterized in that, comprise frame body (1), be symmetrically set in the dynamic model (2) in described frame body (1) and cover half (3) up and down, be located in described frame body (1), and the hydraulic jack (4) that its output is fixedly connected with described dynamic model (2), and be located in described frame body (1), and the hydraulic motor (5) that its output is fixedly connected with described cover half (3), the output of described hydraulic jack (4) drives described dynamic model (2) to do and moves up and down and provide axial compressive force, the output of described hydraulic motor (5) drives described cover half (3) at the uniform velocity rotate and provide tangential cutting torsion.
2. high pressure torsion forming machine according to claim 1, it is characterized in that, described high pressure torsion forming machine also comprises fuel tank (6), the hydraulic pump (7) be connected with described fuel tank (6), and the pressure-control valve (8) to be connected with described hydraulic pump (7), described hydraulic jack (4) is all connected with described pressure-control valve (8) by hydraulic oil pipe (9) with described hydraulic motor (5).
3. high pressure torsion forming machine according to claim 2, is characterized in that, described high pressure torsion forming machine also comprises the console (10) be connected with described pressure-control valve (8).
4. high pressure torsion forming machine according to claim 1, is characterized in that, is provided with the groove for placing sample (11) at the upper surface of described cover half (3), and the size of described groove is corresponding with described dynamic model (2) die head.
5. high pressure torsion forming machine according to claim 1, is characterized in that, the central shaft of described dynamic model (2) overlaps with the pivot of described cover half (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510504325.8A CN105107914A (en) | 2015-08-17 | 2015-08-17 | High-pressure torsion forming machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510504325.8A CN105107914A (en) | 2015-08-17 | 2015-08-17 | High-pressure torsion forming machine |
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| CN105107914A true CN105107914A (en) | 2015-12-02 |
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| CN201510504325.8A Pending CN105107914A (en) | 2015-08-17 | 2015-08-17 | High-pressure torsion forming machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566774A (en) * | 2016-11-13 | 2017-04-19 | 合肥学院 | Wall-breaking method for ganoderma spores |
| CN106925648A (en) * | 2017-04-18 | 2017-07-07 | 燕山大学 | A kind of electric field-assisted high pressure torsion device and high pressure torsion method |
| CN108526282A (en) * | 2017-03-03 | 2018-09-14 | 南京码尔够传动科技有限公司 | Multifunctional high pressure reverses nano material molding machine |
| CN109570297A (en) * | 2018-10-25 | 2019-04-05 | 厦门理工学院 | The pressure of twisting die tool, pressure torsion process equipment and difficult deformable metal material is pressed to turn round processing method |
| CN111349767A (en) * | 2018-12-20 | 2020-06-30 | 波音公司 | High-pressure torsion device and method for changing material properties of workpiece by using same |
| CN112004619A (en) * | 2018-04-23 | 2020-11-27 | 住友重机械工业株式会社 | Compression torsion forming device |
| CN114453583A (en) * | 2022-04-13 | 2022-05-10 | 合肥工业大学 | High-pressure torsion forming die for conical shaped charge liner |
| CN114951408A (en) * | 2022-06-15 | 2022-08-30 | 合肥工业大学 | Metal matrix composite cuts and twists reverse internal pressure and concreties integrated into one piece device |
| CN115161451A (en) * | 2021-04-06 | 2022-10-11 | Oppo广东移动通信有限公司 | Rotating shaft, surface treatment equipment and surface treatment method thereof, and electronic equipment |
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| WO2003026815A1 (en) * | 2001-09-25 | 2003-04-03 | Österreichische Akademie der Wissenschaften | Device and method for producing microcrystalline materials |
| CN1637161A (en) * | 2003-01-10 | 2005-07-13 | 西北工业大学 | Prepn of columnar superfine crystal material |
| CN1731131A (en) * | 2005-08-04 | 2006-02-08 | 中国科学院力学研究所 | A kind of high pressure torsion experimental technique of test sample grain refining |
| CN103572088A (en) * | 2013-11-27 | 2014-02-12 | 山东建筑大学 | Titanium-based porous sintering composite material with nanocrystal tissues and preparation method thereof |
| CN104399808A (en) * | 2014-09-05 | 2015-03-11 | 合肥工业大学 | Device for realizing high-pressure twisting process on hydraulic press |
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2015
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| WO2003026815A1 (en) * | 2001-09-25 | 2003-04-03 | Österreichische Akademie der Wissenschaften | Device and method for producing microcrystalline materials |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566774B (en) * | 2016-11-13 | 2019-06-07 | 合肥学院 | A kind of method for breaking trachytectum of glossy ganoderma |
| CN106566774A (en) * | 2016-11-13 | 2017-04-19 | 合肥学院 | Wall-breaking method for ganoderma spores |
| CN108526282A (en) * | 2017-03-03 | 2018-09-14 | 南京码尔够传动科技有限公司 | Multifunctional high pressure reverses nano material molding machine |
| CN106925648A (en) * | 2017-04-18 | 2017-07-07 | 燕山大学 | A kind of electric field-assisted high pressure torsion device and high pressure torsion method |
| CN106925648B (en) * | 2017-04-18 | 2018-09-04 | 燕山大学 | A kind of electric field-assisted high pressure torsion device and high pressure torsion method |
| CN112004619B (en) * | 2018-04-23 | 2022-03-01 | 住友重机械工业株式会社 | Compression torsion forming device |
| CN112004619A (en) * | 2018-04-23 | 2020-11-27 | 住友重机械工业株式会社 | Compression torsion forming device |
| CN109570297A (en) * | 2018-10-25 | 2019-04-05 | 厦门理工学院 | The pressure of twisting die tool, pressure torsion process equipment and difficult deformable metal material is pressed to turn round processing method |
| CN111349767A (en) * | 2018-12-20 | 2020-06-30 | 波音公司 | High-pressure torsion device and method for changing material properties of workpiece by using same |
| CN111349767B (en) * | 2018-12-20 | 2023-09-15 | 波音公司 | High-pressure torsion device and method for changing material property of workpiece by using same |
| CN115161451A (en) * | 2021-04-06 | 2022-10-11 | Oppo广东移动通信有限公司 | Rotating shaft, surface treatment equipment and surface treatment method thereof, and electronic equipment |
| CN114453583A (en) * | 2022-04-13 | 2022-05-10 | 合肥工业大学 | High-pressure torsion forming die for conical shaped charge liner |
| CN114453583B (en) * | 2022-04-13 | 2022-06-21 | 合肥工业大学 | High-pressure torsion forming die for conical shaped charge liner |
| CN114951408A (en) * | 2022-06-15 | 2022-08-30 | 合肥工业大学 | Metal matrix composite cuts and twists reverse internal pressure and concreties integrated into one piece device |
| CN114951408B (en) * | 2022-06-15 | 2023-05-05 | 合肥工业大学 | Metal matrix composite shearing torsion internal pressure consolidation integrated device |
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Application publication date: 20151202 |