CN2757954Y - S shaped angle reciprocating extrusion mould for preparing ultrafine crystal material - Google Patents
S shaped angle reciprocating extrusion mould for preparing ultrafine crystal material Download PDFInfo
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- CN2757954Y CN2757954Y CN 200420114968 CN200420114968U CN2757954Y CN 2757954 Y CN2757954 Y CN 2757954Y CN 200420114968 CN200420114968 CN 200420114968 CN 200420114968 U CN200420114968 U CN 200420114968U CN 2757954 Y CN2757954 Y CN 2757954Y
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Abstract
An S shape angle reciprocating extrusion mould for preparing superfine crystal material belongs to the materials processing field. The utility model comprises an upper punch, a lower punch, a handle, a bolt, a concave mould and an S shape angle extrusion shape chamber. The concave mould is symmetrically divided into two halves from the center line, the two halves of the concave mold are grouped into the S shape angle extrusion shape chamber depending on the bolt. The upper chamber, the lower chamber and the angle film chamber are all arranged in the concave film along the fractal face. The upper chamber and the lower chamber are connected by the anglefilm chamber, and the angle film chamber and the upper and lower chamber form the S shape angle extrusion shape chamber. The position of the upper and lower chamber are respectively provided with an oil pressure type punch videlicet the upper punch and the lower punch, and a handle is arranged on the concave mould. The utility model integrates the advantages of the reciprocating extrusion and the advantages of uniform channel angle extrusion technical into one body, the structure is simple, the grain refinement ability is strong, and the S shape angle reciprocating extrusion mould realizes the continuously manufacture.
Description
Technical field
The utility model relates to a kind of mould, especially a kind of S shape corner reciprocating extrusion die for preparing 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) etc.Wherein, equal channel angular extruding and high pressure torsion are subjected to people's strong interest owing to its good grain refining efficiency, but high pressure torsion is owing to little application of preparation material volume is restricted, though the equal channel angular extruding can make the larger volume material, and can not be continuously extruded.
Find through literature search prior art, people such as M.Richert are at " Canadian MetallurgicalQuarterly " (Canadian metallurgical quarterly, 1998, in " MICROBAND FORMATIONIN CYCLIC EXTRUSION COMPRESSION OF ALLUMINUM " (formation of texture in the reciprocating extrusion) literary composition of delivering 5:449-457), introduced the basic principle of reciprocating extrusion, have in the mould two sectional areas equate, point-blank, the centre die cavity that has a deflation to distinguish, install a hydraulic type drift respectively on the both sides of die cavity.In extrusion process, material arrives and tightens the district under the effect of drift, and at this moment, material will be subjected to the forward extrusion distortion, and the material after the extruding under the drift effect of another die cavity the jumping-up distortion takes place.When the material in first die cavity all is extruded to second die cavity, repeat said process again and oppositely push back, this finishes an actuation cycle.Repeat above process, till obtaining desired strain, at this moment remove a side blow head, just can be with the material extrusion molding, can be unlimited on this process principle go on, thereby obtain tiny and uniform equi-axed crystal.This technology has following characteristics: 1. can prepare the even grained material of large volume, have and realize the commercial future of using; 2. can obtain arbitrarily big strain and not have the danger of material breaks; 3. extrusion process and compression process carry out simultaneously, and continuous modification need not to change the original-shape of material.But the shortcoming of this technology is the extrusion ratio of every extruding passage can not be too big (otherwise extrded material when jumping-up with bending-buckling), and deflection is little, so grain refining efficiency is not strong; Can only prepare plasticity material such as aluminium alloy etc. preferably, 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 corner 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 corner 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 corner 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 last, lower mode cavity is the same, but size is less, adopt smooth circular arc and last, the lower mode cavity transition, with last, lower mode cavity constitutes S shape corner 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 corner 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 corner extruding die cavity.In extrusion process, material is under the effect of upper punch, push downwards from upper cavity, arrive the junction of upper cavity and corner die cavity, detrusion and crimp take place, become the littler scalene cylinder of diameter, continue extruding downwards, arrive the junction of corner die cavity and lower mode cavity, detrusion takes place in material once more, simultaneously, because low punch is motionless at assigned position, big and heavy stone will take place and slightly be out of shape in material after extruding, revert to original shape, then, low punch is extruding upwards, oppositely pushes back, simultaneously, upper punch is motionless at assigned position, finishes 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.
The utlity model has notable effect of crystal grain thinning, metal type dies is simple in structure, and handling ease is practical wide, the utility model has been realized the perfect adaptation of reciprocating extrusion technology and equal channel angular extrusion technique, and grain refining efficiency is strong, production efficiency is high, it is continuously extruded to have realized.
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 corner extruding die cavity 6.Its annexation is: die 5 is from center line symmetry dimidiation, rely on equally distributed bolt 4 that the two halves of die 5 are combined into S shape corner 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, 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 last, lower mode cavity 7,9 is the same, but size is less, adopt smooth circular arc and last, lower mode cavity 7,9 transition, with last, lower mode cavity 7,9 constitute S shape corner extruding die cavity 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 are provided with handle 2.
Claims (3)
1, a kind of S shape corner 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 corner 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 corner 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), on, lower mode cavity (7,9) link to each other with corner die cavity (8) between, corner die cavity (8) and last, lower mode cavity (7,9) constitute S shape corner extruding die cavity together, last, lower mode cavity (7,9) locate to be provided with respectively upper punch (1), low punch (3), die are provided with handle (2).
2, the S shape corner 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 square or circular, corner die cavity (8) shape is the same with upper and lower die cavity (7,9), but size is littler than upper and lower die cavity (7,9), adopts smooth circular arc and upper and lower die cavity (7,9) transition.
3, the S shape corner 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 |
|---|---|---|---|
| CN 200420114968 CN2757954Y (en) | 2004-12-29 | 2004-12-29 | S shaped angle reciprocating extrusion mould for preparing ultrafine crystal material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114968 CN2757954Y (en) | 2004-12-29 | 2004-12-29 | S shaped angle reciprocating extrusion mould for preparing ultrafine crystal material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757954Y true CN2757954Y (en) | 2006-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114968 Expired - Fee Related CN2757954Y (en) | 2004-12-29 | 2004-12-29 | S shaped angle reciprocating extrusion mould for preparing ultrafine crystal material |
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| CN (1) | CN2757954Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103785700A (en) * | 2014-01-28 | 2014-05-14 | 徐州工程学院 | Mold and method for preparing ultrafine-grained bulk materials |
| CN104889189A (en) * | 2015-06-05 | 2015-09-09 | 太原理工大学 | Equal-channel corner extrusion mold and method |
| CN105798075A (en) * | 2016-03-29 | 2016-07-27 | 太原理工大学 | Asymmetric extrusion die and blank formation method thereof |
| CN105880310A (en) * | 2016-06-29 | 2016-08-24 | 重庆理工大学 | Forming mold and method for ultra-fine grain hollow magnesium alloy profile |
| CN107282670A (en) * | 2017-05-16 | 2017-10-24 | 中国航发北京航空材料研究院 | A kind of extrusion blooming method of turbine disk high temperature alloy ingot casting |
| CN110508635A (en) * | 2019-08-27 | 2019-11-29 | 太原理工大学 | A kind of asymmetric reciprocating extrusion device and processing method with separate type punch-pin |
-
2004
- 2004-12-29 CN CN 200420114968 patent/CN2757954Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103785700A (en) * | 2014-01-28 | 2014-05-14 | 徐州工程学院 | Mold and method for preparing ultrafine-grained bulk materials |
| CN103785700B (en) * | 2014-01-28 | 2016-04-13 | 徐州工程学院 | A kind of mould and method preparing ultra-fine crystal block body material |
| CN104889189A (en) * | 2015-06-05 | 2015-09-09 | 太原理工大学 | Equal-channel corner extrusion mold and method |
| CN104889189B (en) * | 2015-06-05 | 2016-10-05 | 太原理工大学 | A kind of equal channel angular extrusion die and method |
| CN105798075A (en) * | 2016-03-29 | 2016-07-27 | 太原理工大学 | Asymmetric extrusion die and blank formation method thereof |
| CN105798075B (en) * | 2016-03-29 | 2017-12-12 | 天津工业大学 | A kind of method of Non-symmetric Extrusion mould and its forming blank |
| CN105880310A (en) * | 2016-06-29 | 2016-08-24 | 重庆理工大学 | Forming mold and method for ultra-fine grain hollow magnesium alloy profile |
| CN105880310B (en) * | 2016-06-29 | 2017-07-28 | 重庆理工大学 | A kind of mould and forming method of the hollow magnesium alloy profiles of Ultra-fine Grained |
| CN107282670A (en) * | 2017-05-16 | 2017-10-24 | 中国航发北京航空材料研究院 | A kind of extrusion blooming method of turbine disk high temperature alloy ingot casting |
| CN110508635A (en) * | 2019-08-27 | 2019-11-29 | 太原理工大学 | A kind of asymmetric reciprocating extrusion device and processing method with separate type punch-pin |
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| 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 |