CN2750919Y - S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material - Google Patents
S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material Download PDFInfo
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- CN2750919Y CN2750919Y CNU2004201149655U CN200420114965U CN2750919Y CN 2750919 Y CN2750919 Y CN 2750919Y CN U2004201149655 U CNU2004201149655 U CN U2004201149655U CN 200420114965 U CN200420114965 U CN 200420114965U CN 2750919 Y CN2750919 Y CN 2750919Y
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/001—Extruding metal; Impact extrusion to improve the material properties, e.g. lateral extrusion
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- Extrusion Of Metal (AREA)
Abstract
An S shape equivalency channel angle reciprocating extrusion die for preparing the superfine crystal material. The extrusion die belongs to the material processing field. The utility model comprises an upper punch, a lower punch, a handle, a bolt, a concave die, an S shape equivalency channel angle extrusion shape chamber. The concave die is symmetrically divided into two halves from the center line, the two halves of the concave die are grouped into the S shape equivalency channel angle extrusion shape chamber depending on the bolt. And the upper chamber, the lower chamber and the angle chamber are arranged in the concave die along the fractal face, and the upper chamber and the lower chamber are connected with each other by the angle chamber. The shape and sectional area of the angle chamber are equal to the upper and lower chamber, and the S shape equivalency channel angle reciprocating extrusion cavity is formed from the upper and lower chamber by adopting smooth circular arc. The position of the upper and the lower film cavity are respectively provided with the upper punch and the lower punch, and a handle is arranged on the concave die. The utility model is provided with simple structure and strong grain refinement ability, realizing the continuous manufacture, and the S shape equivalency channel angle reciprocating extrusion die is also provided with visible industrial application prospects.
Description
Technical field
The utility model relates to a kind of mould, especially a kind of S shape equal channel angular reciprocating extrusion die is used to prepare the mould of super fine crystal material, belongs to material processing field.
Background technology
Large plastometric set technology (being called for short SPD), has strong grain refining capability, can be directly the interior tissue of material be refine to sub-micron and even nanoscale, being known as by international material educational circles is the most promising method of preparation block nanometer and super fine crystal material.Recent years, the large plastometric set technology has obtained swift and violent development, mainly contains: equal channel angular extruding (ECAE), high pressure torsion (HPT), reciprocating extrusion (CEC), accumulation rolling (ARB) etc.Wherein, equal channel angular extruding and high pressure torsion are the swiftest and the most violent owing to its good grain refining efficiency develops, but high pressure torsion is owing to little application of preparation material volume is restricted, and also each exists significantly not enough other technologies.
Find through literature search prior art, people such as Y.Iwahashi are in " Scripta Material " (material Leader, 1996, in " the principle of equal-channel angularpressing for the processing of ultra-fine grained materials " that delivers 35:143-146) (the equal channel angular extrusion principle of the preparation super fine crystal material) literary composition, introduced the principle of equal channel angular extruding preparation super fine crystal material, the passage that has two cross sections to equate in the extrusion die, two passages are with certain angle of intersection, during extruding, material through the corner of two passages, produces the local big plastic deformation of shearing under the effect of drift.Adopt this technology to have following characteristics: 1. can prepare the large volume material; 2. material does not change at extruding front and back shape of cross section and area, thus repeatedly push the dependent variable accumulation superposition that can make each time distortion repeatedly, thus obtain sizable overall strain amount; 3. grain refining efficiency is strong, is about 100nm～200nm through the material grains size of this processes, still, the shortcoming of this technology maximum be can not realize continuously extruded, so production efficiency is low, also rare now commercial Application.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, and a kind of S shape equal channel angular reciprocating extrusion die for preparing super fine crystal material is provided, and makes it have strong, easy to operate, simple in structure, the advantage that can be continuously extruded of grain refining capability.
The utility model is achieved through the following technical solutions, and the utility model comprises: upper punch, low punch, handle, bolt, die, S shape equal channel angular extruding die cavity.Die is from center line symmetry dimidiation, rely on equally distributed bolt that the two halves of die are combined into S shape equal channel angular extruding die cavity, in die, be provided with upper cavity along fractal area, lower mode cavity and corner die cavity, on, the lower mode cavity sectional area equates, shape is the same, center line is not point-blank, be shaped as square or circular, last, link to each other with the corner die cavity between the lower mode cavity, corner die cavity shape and sectional area and last, lower mode cavity is the same, adopt smooth circular arc and last, the lower mode cavity transition, with last, lower mode cavity constitutes S shape equal channel angular extruding die cavity together, last, it is upper punch that the lower mode cavity place is provided with a hydraulic type drift respectively, low punch, die is provided with handle.
The utility model adopts metal to make metal mold S shape equal channel angular reciprocating extrusion die, and handle moving of mould for convenience designs, and die is preheated to before extruding and requires temperature.Bolt evenly distributes, and a several size according to extruding force needs design.Technological core of the present utility model is S shape equal channel angular extruding die cavity.In extrusion process, material pushes downwards from upper cavity under the effect of upper punch, arrive the junction of upper cavity and corner die cavity, detrusion takes place, become the scalene cylinder of sectional area, continue extruding downwards, arrive the junction of corner die cavity and lower mode cavity, detrusion takes place in material once more, revert to original shape, enter lower mode cavity, then, low punch is extruding upwards, oppositely push back, finish an actuation cycle.Repeat above process, till obtaining desired strain, at this moment remove upper punch or low punch, just can be with the material extrusion molding.Say going on that this process can be unlimited in principle, thereby obtain infinitely-great strain, obtain tiny and uniform equi-axed crystal.
A kind of S shape equal channel angular reciprocating extrusion die for preparing super fine crystal material of the utility model has notable effect of crystal grain thinning, metal type dies is simple in structure, handling ease, practical wide, can prepare super fine crystal materials such as simple metal, alloy, steel, intermetallic compound, ceramic matric composite, metal-base composites, macromolecular material, semiconductor, also can prepare difficult deformable metal, as magnesium alloy etc., realized the perfect adaptation of reciprocating extrusion technology and equal channel angular extrusion technique, realize continuous extruding, the production efficiency height.
Description of drawings
Fig. 1 the utility model structural representation
Fig. 2 structure A-A generalized section
The specific embodiment
As depicted in figs. 1 and 2, the utility model comprises: upper punch 1, handle 2, low punch 3, bolt 4, die 5, S shape equal channel angular extruding die cavity 6.Its annexation is: die 5 center lines symmetry dimidiation, rely on equally distributed bolt 4 that the two halves of die 5 are combined into S shape equal channel angular extruding die cavity 6, in die, be provided with upper cavity 7 along fractal area, lower mode cavity 9 and corner die cavity 8, on, lower mode cavity 7,9 sectional areas equate, shape is the same, center line is not point-blank, be shaped as square or circular, last, lower mode cavity 7, link to each other with corner die cavity 8 between 9, corner die cavity 8 shapes and sectional area and last, lower mode cavity 7,9 is the same, adopt smooth circular arc and last, lower mode cavity 7,9 transition, with last, lower mode cavity 7,9 constitute S shape equal channel angular extruding die cavity 6 together, last, lower mode cavity 7, it is upper punch 1 that 9 places are provided with a hydraulic type drift respectively, low punch 3, die 5 is provided with handle 2.
Claims (3)
1, a kind of S shape equal channel angular reciprocating extrusion die for preparing super fine crystal material, comprise: upper punch (1), handle (2), low punch (3), bolt (4), die (5), it is characterized in that, also comprise: S shape equal channel angular extruding die cavity (6), its annexation is: die (5) is from center line symmetry dimidiation, rely on bolt (4) that the two halves of die (5) are combined into S shape equal channel angular extruding die cavity (6), in die (5), be provided with upper cavity (7) along fractal area, lower mode cavity (9) and corner die cavity (8), last, lower mode cavity (7,9) link to each other with corner die cavity (8) between, corner die cavity (8) shape and sectional area and last, lower mode cavity (7,9) the same, corner die cavity (8) is with last, lower mode cavity (7,9) constitute S shape equal channel angular extruding die cavity (6) together, last, lower mode cavity (7,9) locating to be provided with respectively a hydraulic type drift is upper punch (1), low punch (3), die (5) is provided with handle (2).
2, the S shape equal channel angular reciprocating extrusion die of preparation super fine crystal material according to claim 1, it is characterized in that, upper and lower die cavity (7,9) sectional area equates, shape is the same, center line not point-blank, be shaped as squarely or circular, corner die cavity (8) adopts smooth circular arc and upper and lower die cavity (7,9) transition.
3, the S shape equal channel angular reciprocating extrusion die of preparation super fine crystal material according to claim 1 is characterized in that, upper punch (1), low punch (3) are the hydraulic type drift, and bolt (4) evenly distributes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201149655U CN2750919Y (en) | 2004-12-29 | 2004-12-29 | S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004201149655U CN2750919Y (en) | 2004-12-29 | 2004-12-29 | S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750919Y true CN2750919Y (en) | 2006-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004201149655U Expired - Fee Related CN2750919Y (en) | 2004-12-29 | 2004-12-29 | S-shaped reciprocating compression die set with equal channel outer corner for preparing superfine crystal material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750919Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421830C (en) * | 2007-05-09 | 2008-10-01 | 中国科学院金属研究所 | Method for preparing lamellar composite material of heterogeneic alloy |
| CN102189706A (en) * | 2011-01-28 | 2011-09-21 | 南京理工大学 | High-pressure shearing deformation method and device for tubular materials |
| CN102615273A (en) * | 2012-04-23 | 2012-08-01 | 重庆理工大学 | Method and die for thinning microstructure of magnesium alloy material through continuous chill casting, squeezing and cutting |
| CN106140852A (en) * | 2016-06-29 | 2016-11-23 | 重庆理工大学 | A kind of high-strength tenacity carefully brilliant light-alloy tubing prepare mould and preparation method thereof |
| CN106493184A (en) * | 2016-11-24 | 2017-03-15 | 上海电机学院 | A kind of parallel channels corner undergauge coextrusion method of titanium chip circulation solidification |
| CN107932977A (en) * | 2017-11-25 | 2018-04-20 | 颍上烨徽生物科技有限公司 | A kind of portable stalk press forming disk |
| CN110576071A (en) * | 2019-10-25 | 2019-12-17 | 重庆理工大学 | Forming die for preparing superfine crystal magnesium alloy |
| CN111438214A (en) * | 2020-04-13 | 2020-07-24 | 江苏科技大学 | Composite extrusion die and method for preparing block ultrafine crystal material |
| CN112090977A (en) * | 2020-07-27 | 2020-12-18 | 湖南科技大学 | Reciprocating extrusion device for preparing high-performance magnesium alloy, processing method and product |
| CN113858725A (en) * | 2021-09-28 | 2021-12-31 | 长沙新材料产业研究院有限公司 | Multilayer composite board and preparation method thereof |
| CN116020894A (en) * | 2023-03-29 | 2023-04-28 | 太原科技大学 | Equal-channel double-corner variable-diameter extrusion forming die and process for annular cylindrical part |
-
2004
- 2004-12-29 CN CNU2004201149655U patent/CN2750919Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421830C (en) * | 2007-05-09 | 2008-10-01 | 中国科学院金属研究所 | Method for preparing lamellar composite material of heterogeneic alloy |
| CN102189706A (en) * | 2011-01-28 | 2011-09-21 | 南京理工大学 | High-pressure shearing deformation method and device for tubular materials |
| WO2012100673A1 (en) * | 2011-01-28 | 2012-08-02 | 南京理工大学 | High pressure shear deformation method for tubular material and device thereof |
| CN102189706B (en) * | 2011-01-28 | 2014-10-08 | 南京理工大学 | High-pressure shearing deformation method and device for tubular materials |
| CN102615273A (en) * | 2012-04-23 | 2012-08-01 | 重庆理工大学 | Method and die for thinning microstructure of magnesium alloy material through continuous chill casting, squeezing and cutting |
| CN102615273B (en) * | 2012-04-23 | 2013-10-09 | 重庆理工大学 | Method and die for thinning microstructure of magnesium alloy material through continuous chill casting, squeezing and cutting |
| CN106140852B (en) * | 2016-06-29 | 2017-11-10 | 重庆理工大学 | A kind of high-strength tenacity fine grain light-alloy tubing prepares mould and preparation method thereof |
| CN106140852A (en) * | 2016-06-29 | 2016-11-23 | 重庆理工大学 | A kind of high-strength tenacity carefully brilliant light-alloy tubing prepare mould and preparation method thereof |
| CN106493184A (en) * | 2016-11-24 | 2017-03-15 | 上海电机学院 | A kind of parallel channels corner undergauge coextrusion method of titanium chip circulation solidification |
| CN107932977A (en) * | 2017-11-25 | 2018-04-20 | 颍上烨徽生物科技有限公司 | A kind of portable stalk press forming disk |
| CN107932977B (en) * | 2017-11-25 | 2024-05-03 | 秀山县佳沃农业发展有限公司 | Portable straw briquetting machine shaping dish |
| CN110576071A (en) * | 2019-10-25 | 2019-12-17 | 重庆理工大学 | Forming die for preparing superfine crystal magnesium alloy |
| CN111438214A (en) * | 2020-04-13 | 2020-07-24 | 江苏科技大学 | Composite extrusion die and method for preparing block ultrafine crystal material |
| CN112090977A (en) * | 2020-07-27 | 2020-12-18 | 湖南科技大学 | Reciprocating extrusion device for preparing high-performance magnesium alloy, processing method and product |
| CN113858725A (en) * | 2021-09-28 | 2021-12-31 | 长沙新材料产业研究院有限公司 | Multilayer composite board and preparation method thereof |
| CN113858725B (en) * | 2021-09-28 | 2024-01-30 | 航天科工(长沙)新材料研究院有限公司 | Multilayer composite board and preparation method thereof |
| CN116020894A (en) * | 2023-03-29 | 2023-04-28 | 太原科技大学 | Equal-channel double-corner variable-diameter extrusion forming die and process for annular cylindrical part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |