CN1357420A - Rotary extruder with equal channel angles - Google Patents
Rotary extruder with equal channel angles Download PDFInfo
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- CN1357420A CN1357420A CN 00134038 CN00134038A CN1357420A CN 1357420 A CN1357420 A CN 1357420A CN 00134038 CN00134038 CN 00134038 CN 00134038 A CN00134038 A CN 00134038A CN 1357420 A CN1357420 A CN 1357420A
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- punch
- counterdie
- cylindrical rod
- rod
- thrust bearing
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Abstract
In the rotary extrude, the upper mold has thrust bearing with inner ring connected to a raise mold, which has a cylindrical rod with spiral groove in its surface; the lower mold has straight long hole in its middle part connected to an inclined hole communicated to the side wall of the lower mold and an elastic ball-head rod by the upper hole mouth to sliding fit the spiral groove. The said extruder has the advantage of simultaneously completed rotary extruding deformation and rotating test sample, avoiding several times of extrusion can prevent extrusion hardening, facilitate extrusion and provide new method of preparing lumpy submicron and nanometer level material.
Description
The invention belongs to the material pressurizing unit, particularly a kind of equal channel angular rotating extrusion device.
The state-of-the-art technology method of processing sub-micron and nano level material preparation ultra-fine grain metal block material needs the equal channel angular extrusion technique at present, does not also have its special equipment at present.
The purpose of this invention is to provide a kind of equal channel angular rotating extrusion device, near channel corner, produce local big detrusion, cause grain ultrafining, can obtain sub-micron and nano level material.Fill up the deficiency of prior art equipment.
The object of the present invention is achieved like this:
A kind of equal channel angular rotating extrusion device is made up of upper die and lower die, it is characterized by: the thrust bearing on the patrix also claims the interior ring of pressure bearing to connect punch, and a cylindrical rod is arranged on the punch, and there is the helicla flute of coarse pitch on the surface of cylindrical rod; The centre of counterdie is a straight slotted hole that cooperates with patrix punch cylindrical rod, the bottom of straight slotted hole connects, the other end pass-out counterdie sidewall of inclined hole, the last aperture of counterdie are provided with the similar elasticity bulb rod that bumps pearl, and the head of elasticity bulb rod gos deep into the helicla flute of coarse pitch and is slidingly matched.
Thrust bearing is connected on the upper plate by backing plate and the fixed head under it, punch has central shaft, central shaft top is connected on the endoporus of thrust bearing, central shaft at punch connects a cylindrical rod downwards, the last aperture of counterdie is provided with rotary sleeve, stud with the similar elasticity bulb rod that bumps pearl on the rotary sleeve inner hole wall, the bottom of counterdie is contained on the lower plate.
Advantage of the present invention is:
Adopt the equal channel angular rotating extrusion device, angular pressing texturing and rotation sample are finished simultaneously.Can avoid so repeatedly pushing the work hardening that causes, make process easier, provide new method for preparing block sub-micron and nano level material.
Below in conjunction with description of drawings embodiment:
Fig. 1 is an equal channel angular rotating extrusion device structural representation
Fig. 2 is that the equal channel angular rotating extrusion device begins the squeezed state schematic diagram.
Fig. 3 is an equal channel angular rotating extrusion device extruding done state schematic diagram
A kind of equal channel angular rotating extrusion device is made up of upper die and lower die, and the thrust bearing 1 on the patrix also claims the interior ring of pressure bearing to connect punch, and a cylindrical rod 2 is arranged on the punch, and there is the helicla flute 3 of coarse pitch on the surface of cylindrical rod; The centre of counterdie is a straight slotted hole 4 that cooperates with patrix punch cylindrical rod, the bottom of straight slotted hole connects inclined hole 11, the other end pass-out counterdie sidewall of inclined hole, the last aperture of counterdie are provided with the similar elasticity bulb rod 5 that bumps pearl, and the head of elasticity bulb rod gos deep into the helicla flute of coarse pitch and is slidingly matched.
Thrust bearing is connected on the upper plate by backing plate 6 and the fixed head 7 under it, punch has central shaft 8, central shaft top is connected on the endoporus of thrust bearing, central shaft at punch connects a cylindrical rod downwards, the last aperture of counterdie is provided with rotary sleeve 9, stud with the similar elasticity bulb rod that bumps pearl on the rotary sleeve inner hole wall, the bottom of counterdie is contained on the lower plate 10.
The equal channel angular rotating extrusion device is the state-of-the-art technology method of preparation ultra-fine grain metal block material, this method is that bar-shaped sample is put into extrusion die, have on the extrusion die and the long-pending squeezing passage that equates of sample cross, bar-shaped sample is through more than the secondary, revolve the extruding that turn 90 degrees (or 180 degree) direction at every turn, near channel corner, produce local big detrusion, cause grain ultrafining, can obtain sub-micron and nano level material.
In the equal channel angular extruding, the degree of refinement of crystal grain is relevant with the direction of extruding number of times and rotation.Extruding number of times and direction of rotation are many more, degree of refinement is high more, but, because producing, metal adds the formula sclerosis in extrusion process, make the repeatedly rotation extruding of metal become very difficult, adopt equal channel angular extrusion device, can make the slowly rotation (rotation 90---180) in extrusion process of circular section sample, angular pressing texturing and rotation sample are finished simultaneously, like this, reach same thinning effect, can make the extruding number of times reduce half, reduce work-hardening capacity like this, made grain refinement process become easier.
Accompanying drawing 2 is the beginning squeezed state.Accompanying drawing 3 is the extruding done state.
The punch of corner extruding is fixed in the thrust bearing, the punch outside is processed as helicla flute, there is a pair of alignment pin the die upper end, when punch pushes downwards, alignment pin enters in the helicla flute, punch is slowly being rotated in the extrusion process downwards, drive extrusion and together rotate, angular pressing texturing and rotation sample are finished simultaneously.
Claims (2)
1, a kind of equal channel angular rotating extrusion device is made up of upper die and lower die, it is characterized by: the thrust bearing on the patrix also claims the interior ring of pressure bearing to connect punch, and a cylindrical rod is arranged on the punch, and there is the helicla flute of coarse pitch on the surface of cylindrical rod; The centre of counterdie is a straight slotted hole that cooperates with patrix punch cylindrical rod, the bottom of straight slotted hole connects inclined hole, the other end pass-out counterdie sidewall of inclined hole, the last aperture of counterdie are provided with the similar elasticity bulb rod that bumps pearl, and the head of elasticity bulb rod gos deep into the helicla flute of coarse pitch and is slidingly matched.
2, equal channel angular rotating extrusion device according to claim 1, it is characterized by: thrust bearing is connected on the upper plate by backing plate and the fixed head under it, punch has central shaft, central shaft top is connected on the endoporus of thrust bearing, central shaft at punch connects a cylindrical rod downwards, the last aperture of counterdie is provided with rotary sleeve, studs with the similar elasticity bulb rod that bumps pearl on the rotary sleeve inner hole wall, and the bottom of counterdie is contained on the lower plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001340387A CN1139443C (en) | 2000-12-08 | 2000-12-08 | Rotary extruder with equal channel angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001340387A CN1139443C (en) | 2000-12-08 | 2000-12-08 | Rotary extruder with equal channel angles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357420A true CN1357420A (en) | 2002-07-10 |
| CN1139443C CN1139443C (en) | 2004-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001340387A Expired - Fee Related CN1139443C (en) | 2000-12-08 | 2000-12-08 | Rotary extruder with equal channel angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1139443C (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298450C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Broken line type extrusion shaping apparatus |
| CN1298451C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Spiral extrusion shaping and processing apparatus |
| CN1298448C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Broken-line type extrusion shaping method |
| CN1298449C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Spiral extrusion shaping method |
| CN1302867C (en) * | 2005-06-16 | 2007-03-07 | 上海交通大学 | U-shape isochannel repeated extruding apparatus for preparing ultrafine crystal material |
| CN1325205C (en) * | 2005-07-27 | 2007-07-11 | 哈尔滨工业大学 | Equal radial-channel angular extruding machining apparatus of magnesium alloy and machining method thereof |
| CN100349664C (en) * | 2005-03-07 | 2007-11-21 | 西安理工大学 | Reciprocating extrusion grain refining equipment and extrusion refining method therewith |
| CN100558483C (en) * | 2003-07-22 | 2009-11-11 | 有限公司里那西美特利 | Metal forming process and metal-forming machines |
| CN101134211B (en) * | 2006-08-28 | 2010-05-12 | 太原理工大学 | L-shaped extrusion device for producing ultra-fine crystal block body material |
| CN101856678A (en) * | 2010-06-29 | 2010-10-13 | 中南大学 | Device capable of realizing accurate control of equal-channel angular extrusion processing route |
| CN101693264B (en) * | 2009-10-16 | 2011-02-16 | 江苏大学 | Large equal channel angular large-strain extrusion die |
| CN101570070B (en) * | 2008-04-30 | 2012-03-28 | 西北工业大学 | Self-guided equal channel extruding device and extruding method |
| CN102513395A (en) * | 2011-12-14 | 2012-06-27 | 合肥工业大学 | Equal channel angular extruding, twisting and deforming mold for large plastic forming process |
| CN111940525A (en) * | 2020-08-26 | 2020-11-17 | 江苏科技大学 | Rotary extrusion device for preparing superfine crystal pipe |
| CN111940526A (en) * | 2020-08-26 | 2020-11-17 | 江苏科技大学 | Rotary backward extrusion device for preparing superfine crystal pipe |
| CN112296115A (en) * | 2020-09-28 | 2021-02-02 | 重庆长安工业(集团)有限责任公司 | Deep conical part rotary extrusion method |
| WO2023165063A1 (en) * | 2022-03-04 | 2023-09-07 | 无锡职业技术学院 | Electromechanical integrated rotary down-pressing device |
-
2000
- 2000-12-08 CN CNB001340387A patent/CN1139443C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100558483C (en) * | 2003-07-22 | 2009-11-11 | 有限公司里那西美特利 | Metal forming process and metal-forming machines |
| CN100349664C (en) * | 2005-03-07 | 2007-11-21 | 西安理工大学 | Reciprocating extrusion grain refining equipment and extrusion refining method therewith |
| CN1298450C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Broken line type extrusion shaping apparatus |
| CN1298451C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Spiral extrusion shaping and processing apparatus |
| CN1298448C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Broken-line type extrusion shaping method |
| CN1298449C (en) * | 2005-06-16 | 2007-02-07 | 上海交通大学 | Spiral extrusion shaping method |
| CN1302867C (en) * | 2005-06-16 | 2007-03-07 | 上海交通大学 | U-shape isochannel repeated extruding apparatus for preparing ultrafine crystal material |
| CN1325205C (en) * | 2005-07-27 | 2007-07-11 | 哈尔滨工业大学 | Equal radial-channel angular extruding machining apparatus of magnesium alloy and machining method thereof |
| CN101134211B (en) * | 2006-08-28 | 2010-05-12 | 太原理工大学 | L-shaped extrusion device for producing ultra-fine crystal block body material |
| CN101570070B (en) * | 2008-04-30 | 2012-03-28 | 西北工业大学 | Self-guided equal channel extruding device and extruding method |
| CN101693264B (en) * | 2009-10-16 | 2011-02-16 | 江苏大学 | Large equal channel angular large-strain extrusion die |
| CN101856678A (en) * | 2010-06-29 | 2010-10-13 | 中南大学 | Device capable of realizing accurate control of equal-channel angular extrusion processing route |
| CN102513395A (en) * | 2011-12-14 | 2012-06-27 | 合肥工业大学 | Equal channel angular extruding, twisting and deforming mold for large plastic forming process |
| CN111940525A (en) * | 2020-08-26 | 2020-11-17 | 江苏科技大学 | Rotary extrusion device for preparing superfine crystal pipe |
| CN111940526A (en) * | 2020-08-26 | 2020-11-17 | 江苏科技大学 | Rotary backward extrusion device for preparing superfine crystal pipe |
| CN112296115A (en) * | 2020-09-28 | 2021-02-02 | 重庆长安工业(集团)有限责任公司 | Deep conical part rotary extrusion method |
| WO2023165063A1 (en) * | 2022-03-04 | 2023-09-07 | 无锡职业技术学院 | Electromechanical integrated rotary down-pressing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1139443C (en) | 2004-02-25 |
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