CN219985767U - Asymmetric extrusion die for weakening magnesium alloy texture - Google Patents
Asymmetric extrusion die for weakening magnesium alloy texture Download PDFInfo
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- CN219985767U CN219985767U CN202321534808.9U CN202321534808U CN219985767U CN 219985767 U CN219985767 U CN 219985767U CN 202321534808 U CN202321534808 U CN 202321534808U CN 219985767 U CN219985767 U CN 219985767U
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 74
- 238000001125 extrusion Methods 0.000 title claims abstract description 74
- 230000003313 weakening effect Effects 0.000 title claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 31
- 210000001503 joint Anatomy 0.000 claims abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 11
- 239000000956 alloy Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- Extrusion Of Metal (AREA)
Abstract
The embodiment of the utility model discloses an asymmetric extrusion die for weakening magnesium alloy texture, which comprises a diversion die and a forming die, wherein an extrusion area and a forming area which are mutually communicated are arranged on the forming die; the extrusion zone comprises a feeding channel and a discharging channel, wherein the caliber of a feeding hole of the feeding channel is larger than that of a discharging hole of the discharging channel; after the diversion die is fixedly installed with the forming die, the feeding channel is communicated with the diversion hole, the end face of the feeding channel is in butt joint with the end face of the diversion hole, and one side of the end face of the feeding channel is aligned with one side of the end face of the diversion hole; and the caliber D1 of the feed inlet and the caliber D2 of the diversion orifice satisfy the following relationThe utility model adopts an asymmetric structure, forms two-stage uneven extrusion, changes the flow velocity of magnesium alloy blanks, reduces deformation unevenness, forms shearing deformation, refines magnesium alloy grains, and achieves the aim of weakening the texture of the magnesium alloy.
Description
Technical Field
The embodiment of the utility model relates to the technical field of magnesium alloy processing equipment, in particular to an asymmetric extrusion die for weakening magnesium alloy texture.
Background
The magnesium alloy has the characteristics of low density, high specific strength, good heat conductivity, good electromagnetic interference shielding property and the like, and has very wide application prospect in the fields of aerospace, automobiles, medical treatment, electronic communication and the like. However, magnesium has an hcp structure, and only two sliding systems can be started at room temperature, so that the magnesium alloy is difficult to plastically process, the mechanical strength is not high, and the problems of anisotropy, uneven deformation and the like of the magnesium alloy caused by texture are easy to occur.
In the Chinese patent application of publication No. CN 109702025, a corrugated shearing extrusion channel is adopted, so that the flow speed, the diameter and the wall thickness of a blank are continuously changed in the magnesium alloy deformation process, and shearing deformation refined grains are generated; in the Chinese patent of publication No. CN 105032964, a plurality of inclined steps approaching to the axis of the die cavity gradually are adopted, and the blank is thinned step by step, and grains are thinned, so that the magnesium alloy plate with the weak basal plane texture is formed. Also, the Chinese patent utility models with publication numbers of CN107138548A and CN 114406025A adopt multistage extrusion channels, and the extrusion channels are symmetrical structures, so that the aim of weakening the texture of the magnesium alloy cannot be achieved.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the utility model aims to provide an asymmetric extrusion die for weakening the texture of a magnesium alloy, which adopts an asymmetric structure to form two-stage uneven extrusion, change the flow rate of a magnesium alloy blank, reduce deformation unevenness, form shearing deformation and refine magnesium alloy grains so as to weaken the texture of the magnesium alloy.
In order to solve the problems, the utility model adopts the following scheme:
the embodiment of the utility model provides an asymmetric extrusion die for weakening magnesium alloy texture, which comprises a diversion die and a forming die, wherein an extrusion area and a forming area which are mutually communicated are arranged on the forming die; the extrusion zone comprises a feeding channel and a discharging channel, wherein the caliber of a feeding hole of the feeding channel is larger than that of a discharging hole of the discharging channel; by a means ofAfter the diversion die is fixedly installed with the forming die, the feeding channel is communicated with the diversion hole, the end face of the feeding channel is in butt joint with the end face of the diversion hole, and one side of the end face of the feeding channel is aligned with one side of the end face of the diversion hole; and the caliber D1 of the feed inlet and the caliber D2 of the diversion orifice satisfy the following relation
As a further preferable scheme, one side of the end face at the feed inlet of the feed channel is aligned with one side of the end face of the diversion hole to form a first inclined plane, and the other side of the end face at the feed inlet of the feed channel is a first plane extending from the side wall of the forming area through the discharge channel; the discharge channel extends from the forming zone to the feed channel.
As a further preferable scheme, the included angle between the first inclined plane and the central axis of the forming die is 30-60 degrees.
As a further preferable scheme, the relationship between the aperture D1 of the feed port, the aperture D2 of the diversion port and the aperture D3 of the forming area in the embodiment of the present utility model is as follows:and the caliber of a discharge hole of the discharge channel is consistent with that of the forming area.
As a further preferable scheme, one side of the discharging channel in the embodiment of the utility model is a second plane extending from the port of the forming area to the feeding channel, and the other side is a second inclined plane extending from the port of the forming area to pass through the feeding channel; the other side of the feeding channel far away from the second inclined plane gradually narrows from the end face of the flow guide hole to the direction of the discharging channel to form a third inclined plane.
As a further preferable scheme, the included angle between the second inclined plane and the central axis of the forming die is 15-30 degrees, and the included angle between the third inclined plane and the central axis of the forming die is 30-60 degrees.
As a further preferable scheme, the caliber and the shape of the discharge hole of the discharge channel in the embodiment of the utility model are the same as those of the forming area.
As a further preferable scheme, the forming die provided by the embodiment of the utility model is further provided with a hollow knife, the hollow knife is communicated with the forming area, the caliber of the hollow knife is larger than that of the forming area, and the central axis of the hollow knife is coincident with the central axis of the forming area.
As a further preferable scheme, the diversion mold and the forming mold are provided with a first assembly screw hole and a second assembly screw hole which are matched with each other, and the diversion mold and the forming mold are detachably connected through assembly screws arranged in the first assembly screw hole and the second assembly screw hole; and an adjusting screw hole for assembling is formed in the side surface of the forming die, and the asymmetric extrusion die is assembled on the extruder through an adjusting screw matched with the adjusting screw hole.
As a further preferable scheme, the guide die and the forming die are provided with a first positioning pin hole and a second positioning pin hole which are matched with each other, and the guide die and the forming die are fixed through positioning pins matched with the first positioning pin hole and the second positioning pin hole.
Compared with the prior art, the embodiment of the utility model has the beneficial effects that: according to the asymmetric extrusion die for weakening the magnesium alloy texture, two-stage uneven extrusion is formed by arranging the caliber of the feed inlet of different feed channels, the caliber of the discharge outlet of the discharge channel and the caliber of the diversion hole, the flow speed of magnesium alloy blanks is changed, and one side of the end face of the feed channel is aligned with one side of the end face of the diversion hole, so that the extrusion die is of an asymmetric structure, shearing deformation can be formed in the process of extruding the magnesium alloy, magnesium alloy grains are thinned, and the magnesium alloy texture is weakened.
The structure of the asymmetric extrusion die for weakening the texture of magnesium alloy according to the present utility model is further described with reference to the accompanying drawings and specific examples.
Drawings
FIG. 1 is a schematic view of a flow guiding die structure of an asymmetric extrusion die for weakening a magnesium alloy texture according to an embodiment of the present utility model;
FIG. 2 is a radial cross-sectional view of a flow guiding die of an asymmetric extrusion die for weakening a magnesium alloy texture according to an embodiment of the present utility model;
FIG. 3 is a schematic view showing a structure of a forming die of an asymmetric extrusion die for weakening a texture of a magnesium alloy according to an embodiment of the present utility model;
FIG. 4 is a radial cross-sectional view of a forming die of an asymmetric extrusion die for weakening a magnesium alloy texture according to an embodiment of the present utility model;
FIG. 5 is a schematic view of an asymmetric extrusion die for weakening a texture of magnesium alloy according to an embodiment of the present utility model;
FIG. 6 is a schematic view showing a structure of a forming die of an asymmetric extrusion die for weakening a texture of a magnesium alloy according to another embodiment of the present utility model;
FIG. 7 is a radial cross-sectional view of a forming die of an asymmetric extrusion die for weakening a texture of a magnesium alloy according to another embodiment of the present utility model;
fig. 8 is a schematic structural view of an asymmetric extrusion die for weakening a magnesium alloy texture according to another embodiment of the present utility model.
Wherein, each reference sign is: 10. a diversion mold; 11. a deflector aperture; 12. a first assembly screw hole; 20. forming a mold; 21. an extrusion zone; 211. a feed channel; 212. a discharge channel; 213. a first inclined surface; 214. a first plane; 215. a second plane; 216. a second inclined surface; 217. a third inclined surface; 22. a molding zone; 23. a hollow knife; 24. a second assembly screw hole; 25. adjusting the screw hole; 26. and (5) positioning pins.
Detailed Description
This detailed description is merely illustrative of the embodiments of the utility model and is not intended to limit the embodiments of the utility model, since modifications of the embodiments can be made by those skilled in the art without creative contribution as required after reading the specification, but are protected by the patent laws within the scope of the claims of the embodiments of the utility model.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the embodiments of the present utility model.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In embodiments of the utility model, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
The utility model provides an asymmetric extrusion die for weakening a magnesium alloy texture, which is used for extruding a magnesium alloy material into a plate, and realizes graded uneven extrusion through the extrusion die with an asymmetric structure in the extrusion process so as to weaken the magnesium alloy texture, thereby facilitating the processing and obtaining of a solid magnesium alloy plate.
As shown in fig. 1 to 4, in the embodiment of the present utility model, the asymmetric extrusion die for weakening the texture of the magnesium alloy mainly comprises a diversion die 10 and a forming die 20, and the diversion die 10 and the forming die 20 are assembled and assembled on an extruder to perform extrusion molding of the magnesium alloy material. In the embodiment of the utility model, the diameters of the diversion holes 11, the extrusion area 21 and the forming area 22 are inconsistent through structural design and are designed into an asymmetric structure, so that two-stage uneven extrusion is formed, and the purposes of changing the flow speed of magnesium alloy blanks, reducing deformation unevenness, forming shearing deformation, refining magnesium alloy grains and weakening the texture of the magnesium alloy are achieved.
Specifically, in the embodiment, the forming die 20 is provided with an extrusion area 21 and a forming area 22 that are mutually communicated; the extrusion area 21 comprises a feeding channel 211 and a discharging channel 212, wherein the caliber of the feeding hole of the feeding channel 211 is larger than that of the discharging hole of the discharging channel 212, the magnesium alloy blank can be subjected to two-stage uneven extrusion in the process of passing through the feeding channel 211 to the discharging channel 212, and due to the different calibers, the flow velocity of the magnesium alloy blank in the two sections of channels is changed, so that deformation shearing can be formed; after the diversion die 10 is fixedly installed with the forming die 20, the feeding channel 211 is communicated with the diversion hole 11, the end face of the feeding channel 211 is in butt joint with the end face of the diversion hole 11, one side of the end face of the feeding channel 211 is aligned with one side of the end face of the diversion hole 11, and the caliber D1 of the feeding hole and the caliber D2 of the diversion hole 11 meet the following relation:in this way, the extrusion die is formed into an asymmetric structure.
Example 1
As shown in fig. 1 to 5, the present embodiment provides an asymmetric extrusion die for weakening the texture of magnesium alloy, which comprises a diversion die 10 and a forming die 20, wherein the diversion die 10 and the forming die 20 are assembled on an extruder after being assembled for extrusion molding of magnesium alloy materials; the forming die 20 is provided with an extrusion area 21 and a forming area 22 which are communicated with each other; the extrusion area 21 comprises a feeding channel 211 and a discharging channel 212, wherein the caliber of the feeding hole of the feeding channel 211 is larger than that of the discharging hole of the discharging channel 212, the magnesium alloy blank can be subjected to two-stage uneven extrusion in the process of passing through the feeding channel 211 to the discharging channel 212, and due to the different calibers, the flow velocity of the magnesium alloy blank in the two sections of channels is changed, so that deformation shearing can be formed; after the diversion die 10 and the forming die 20 are fixedly installed, the feeding channel 211 is communicated with the diversion hole 11, the end face of the feeding channel 211 is in butt joint with the end face of the diversion hole 11, and the feeding channel 211 is aligned with one side of the end surface of the guide hole 11 to form a first inclined plane 213, and the other side of the end surface of the feed hole of the feed channel 211 is a first plane 214 extending from the side wall of the forming area 22 through the discharge channel; the discharging channel extends from the forming area to the feeding channel; the caliber D of the feeding hole 1 And the caliber D of the diversion hole 11 2 The following relationship is satisfied:further, in this embodiment, the first inclined surface 213 is formed at an angle of 30-60 degrees with respect to the central axis of the molding die 20, and preferably at an angle of 45 degrees. In this embodiment, the flat surface and the first inclined surface 213 form the pressing area 21 with two passages having different inclination angles with the central axis, thereby forming an asymmetric structure.
Further, on the basis of example 1, the relationship between the aperture D1 of the feed port and the aperture D2 of the guide port and the aperture D3 of the forming zone is as follows:and the caliber of a discharge hole of the discharge channel is consistent with that of the forming area.
Example 2
As shown in fig. 6 to 8, the present embodiment provides an asymmetric extrusion die for weakening the texture of magnesium alloy, which comprises a diversion die 10 and a forming die 20, wherein the diversion die 10 and the forming die 20 are assembled and assembled on an extruder to perform extrusion molding of magnesium alloy materials; the forming die 20 is provided with an extrusion area 21 and a forming area 22 which are communicated with each other; the extrusion area 21 comprises a feeding channel 211 and a discharging channel 212, wherein the caliber of the feeding hole of the feeding channel 211 is larger than that of the discharging hole of the discharging channel 212, the magnesium alloy blank can be subjected to two-stage uneven extrusion in the process of passing through the feeding channel 211 to the discharging channel 212, and due to the different calibers, the flow velocity of the magnesium alloy blank in the two sections of channels is changed, so that deformation shearing can be formed; after the diversion die 10 and the forming die 20 are fixedly installed, the feeding channel 211 is communicated with the diversion hole 11, the end face of the feeding channel 211 is in butt joint with the end face of the diversion hole 11, and one side of the discharging channel 211 is provided withA second plane 215 extending from the forming zone port to the feed channel, and a second inclined plane 216 extending from the forming zone port through the feed channel; the other side of the feeding channel far away from the second inclined surface 216 gradually narrows from the end surface of the diversion hole to the direction of the discharging channel to form a third inclined surface 217; the caliber D of the feeding hole 1 And the caliber D of the diversion hole 11 2 The following relationship is satisfied:the included angle between the second inclined plane and the central axis of the forming die is 15-30 degrees, and the included angle between the third inclined plane and the central axis of the forming die is 30-60 degrees. Preferably, the included angle between the second inclined plane and the central axis of the forming die is 23 degrees, and the included angle between the third inclined plane and the central axis of the forming die is 40 degrees. Further, on the basis of the above embodiment 1 or embodiment 2, the feeding channel 211 and the discharging channel 212 in the extrusion zone 21 are divided into two sections of channels with different calibers, the radial sections of the feeding channel 211 and the discharging channel 212 are racetrack, wherein the shorter calibers of the feeding channel 211 are 10-20mm, and the shorter calibers of the discharging channel 212 are 11-19mm.
Further, in order to ensure that the thickness of the magnesium alloy sheet is uniform and consistent on the basis of the embodiment 1 or embodiment 2, further, in some embodiments, the caliber and shape of the discharge opening of the discharge channel 212 are the same as those of the forming region 22.
Further on the basis of embodiment 1 or embodiment 2, in some embodiments, the forming die 20 is further provided with a hollow knife 23, the hollow knife 23 is communicated with the forming area 22, the caliber of the hollow knife 23 is larger than that of the forming area 22, and the central axis of the hollow knife 23 coincides with the central axis of the forming area 22. In the scheme, the hollow knife 23 can support the formed magnesium alloy solid plate, so that the horizontal shape of the magnesium alloy plate is ensured.
Further, in some embodiments, the guide die and the forming die are two independent parts, and are installed together when in use, so that the guide die 10 and the forming die 20 are usually provided with a first assembling screw hole 12 and a second assembling screw hole 24 which are matched with each other, and the guide die 10 and the forming die 20 are detachably connected by assembling screws installed in the first assembling screw hole 12 and the second assembling screw hole 24. In other preferred embodiments, the side surface of the forming die is provided with an adjusting screw hole 25 for assembly, the asymmetric extrusion die is assembled to the extruder by an adjusting screw matched with the adjusting screw hole 25, and the position of the asymmetric extrusion die on the extruder can be adjusted. Further, on the basis of the foregoing solution, the guide mold 10 and the forming mold 20 are provided with a first positioning pin hole (not shown) and a second positioning pin hole (not shown) that are matched with each other, and the guide mold and the forming mold are fixed by a positioning pin 26 that is matched with the first positioning pin hole and the second positioning pin hole.
The installation process of the asymmetric extrusion die for weakening the magnesium alloy texture is as follows: the positioning pins are arranged in a first positioning pin hole and a second positioning pin hole which are matched with the positioning pins, the assembly screws are arranged in the first assembly screw hole and the second assembly screw hole to realize the installation and fixation of the guide die and the forming die, then the whole die part is assembled on the extruding machine through the adjusting through hole and the adjusting screw hole, during operation, the magnesium alloy blank is pre-deformed through the guide hole of the guide die, the extrusion deformation non-uniformity is reduced, then the magnesium alloy blank enters the extrusion area through the feeding channel, in the extrusion area, the flow velocity of the magnesium alloy blank on the upper side and the lower side of the extrusion area is different due to the different calibers of the feeding channel and the discharging channel, the whole flow path of the blank also moves upwards, the flow velocity of the magnesium alloy blank on the two sides of the die cavity is changed again due to the asymmetric structure in the die cavity after entering the extrusion area, and the change of the flow velocity and the flow path of the two times can lead the magnesium alloy to form shearing deformation to refine grains, the alloy deformation is more uniform, and the texture of the magnesium alloy is weakened. The extruded magnesium alloy blank enters a forming area for forming, the formed solid magnesium alloy extruded plate is slowly extruded into a hollow knife, and the hollow knife supports the extruded plate to ensure the horizontal shape of the extruded plate.
While the embodiments of the present utility model have been described above with reference to the drawings, the embodiments of the present utility model are not limited to the above-described specific embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the embodiments of the present utility model and the scope of the claims, which are to be protected by the embodiments of the present utility model.
Claims (10)
1. The asymmetric extrusion die for weakening the magnesium alloy texture comprises a diversion die and a forming die, wherein the diversion die is provided with a diversion hole, and the asymmetric extrusion die is characterized in that the forming die is provided with an extrusion area and a forming area which are mutually communicated; the extrusion zone comprises a feeding channel and a discharging channel, wherein the caliber of a feeding hole of the feeding channel is larger than or equal to that of a discharging hole of the discharging channel; after the diversion die is fixedly installed with the forming die, the feeding channel is communicated with the diversion hole, the end face of the feeding channel is in butt joint with the end face of the diversion hole, and at least one side of the end face of the feeding channel is aligned with one side of the end face of the diversion hole; and the caliber D1 of the feed inlet and the caliber D2 of the diversion hole meet the following relation:
2. the asymmetric extrusion die for weakening magnesium alloy texture according to claim 1, wherein one side of the end face at the feed inlet of the feed channel is aligned with one side of the end face of the deflector hole to form a first inclined plane, and the other side of the end face at the feed inlet of the feed channel is a first plane extending from the side wall of the forming zone through the discharge channel; the discharge channel extends from the forming zone to the feed channel.
3. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 2, wherein an included angle between the first inclined surface and a central axis of the forming die is 30-60 degrees.
4. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 2, wherein the relationship between the inlet aperture D1 and the aperture D2 of the flow guide aperture and the aperture D3 of the forming zone is as follows:and the caliber of a discharge hole of the discharge channel is consistent with that of the forming area.
5. The asymmetric extrusion die for the texture weakening of magnesium alloy as claimed in claim 1, wherein one side of the discharge channel is a second plane extending from the forming zone port to the feed channel, and the other side is a second inclined plane extending from the forming zone port through the feed channel; the other side of the feeding channel far away from the second inclined plane gradually narrows from the end face of the flow guide hole to the direction of the discharging channel to form a third inclined plane.
6. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 5, wherein an angle between the second inclined surface and the center axis of the forming die is 15-30 degrees, and an angle between the third inclined surface and the center axis of the forming die is 30-60 degrees.
7. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 2 or 5, wherein the caliber and shape of the discharge opening of the discharge channel are the same as the caliber and shape of the forming zone.
8. The asymmetric extrusion die for weakening magnesium alloy texture according to any one of claims 1 to 6, wherein the forming die is further provided with a hollow blade, the hollow blade is communicated with the forming region, a caliber of the hollow blade is larger than a caliber of the forming region, and a central axis of the hollow blade coincides with a central axis of the forming region.
9. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 8, wherein the diversion die and the forming die are provided with a first assembly screw hole and a second assembly screw hole which are matched with each other, and the diversion die and the forming die are detachably connected through assembly screws arranged in the first assembly screw hole and the second assembly screw hole; and an adjusting screw hole for assembling is formed in the side surface of the forming die, and the asymmetric extrusion die is assembled on the extruder through an adjusting screw matched with the adjusting screw hole.
10. The asymmetric extrusion die for weakening magnesium alloy texture according to claim 1, wherein the guide die and the forming die are provided with a first positioning pin hole and a second positioning pin hole which are matched with each other, and the guide die and the forming die are fixed by positioning pins matched with the first positioning pin hole and the second positioning pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321534808.9U CN219985767U (en) | 2023-06-15 | 2023-06-15 | Asymmetric extrusion die for weakening magnesium alloy texture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321534808.9U CN219985767U (en) | 2023-06-15 | 2023-06-15 | Asymmetric extrusion die for weakening magnesium alloy texture |
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| Publication Number | Publication Date |
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| CN219985767U true CN219985767U (en) | 2023-11-10 |
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| CN202321534808.9U Active CN219985767U (en) | 2023-06-15 | 2023-06-15 | Asymmetric extrusion die for weakening magnesium alloy texture |
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| CN (1) | CN219985767U (en) |
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2023
- 2023-06-15 CN CN202321534808.9U patent/CN219985767U/en active Active
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