CN107974652A - A kind of extrusion shearing mould and manufacturing process for realizing magnesium alloy grains - Google Patents
A kind of extrusion shearing mould and manufacturing process for realizing magnesium alloy grains Download PDFInfo
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- CN107974652A CN107974652A CN201711234155.1A CN201711234155A CN107974652A CN 107974652 A CN107974652 A CN 107974652A CN 201711234155 A CN201711234155 A CN 201711234155A CN 107974652 A CN107974652 A CN 107974652A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
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Abstract
The invention belongs to magnesium alloy deformation technology and mould design and manufacture field, is related to a kind of extrusion shearing mould and manufacturing process for realizing magnesium alloy grains.The extrusion shearing mould includes briquetting, sleeve and extrusion shearing insert；Include extrusion cup, extruded segment, shearind section, shaped segment and discharge zone on the half module of extrusion shearing insert.It is high the present invention overcomes requirement of the prior art to equipment extruding force, mould structure and intensity, the shortcomings of complex process；A kind of extrusion shearing mould and manufacturing process for effectively realizing magnesium alloy grains is provided, the mould structure is simple, and method is easy, easily operated and positive effect.
Description
Technical field
The present invention relates to a kind of extrusion shearing mould and manufacturing process for realizing magnesium alloy grains, belongs to magnesium alloy change
Shape technology and mould design and manufacture field.
Background technology
Magnesium alloy is known as the green material of 21 century resource and environment sustainable development, it has also become Jiao of various countries' concern
Point.Due to the Patterns for Close-Packed Hexagonal Crystal structure of magnesium alloy, make magnesium alloy plastic deformation ability poor, at present, more than 90% magnesium alloy is to cast
What the form of part obtained.The magnesium alloy strength obtained under the conditions of routine casting is low, greatly limit the wide of magnesium alloy
General application.Compared with cast magnesium alloy, the crystal grain of wrought magnesium alloy is more tiny, and casting flaw is reduced, or even eliminates, so that
The comprehensive mechanical property of product increases substantially, and by plastic deformation can produce size, multi-size magnesium alloy bar,
Pipe, section bar, wire rod, plate and forging products, to meet requirement of the different occasions to magnesium alloy structural part performance, to expanding
Magnesium alloy application range has important practical significance.According to Hall-Petch formula, alloy strength is main and crystallite dimension has
Directly contact.In recent years, had carried out some research in terms of magnesium alloy grains, mainly by large plastometric set method such as
Deng channel pressings, tandem rolling, asymmetrical rolling, reciprocating extrusion, high ratio extrusion, multiway forging and great-deformation hot-rolled cause crystalline substance
Grain refinement, although these methods play a role clearly magnesium alloy grains, these method complex process, operate numerous
It is trivial, and product size is limited, is not suitable for industrial applications.For example, wait channel pressings（ECAP）It is one to receive much concern in recent years
The kind strong plastic deformation technique of novel metal, can make magnesium alloy obtain obvious grain refining effect by this method, but blank needs
To pass through multi-pass shearing and can be only achieved preferable grain refining effect, and magnesium alloy mechanical property is by crystallite dimension, change parameter
Several has a great influence, so as to cause its production efficiency relatively low and complex process；In addition, channel pressings are waited to may not apply to larger ruler
The preparation of very little section bar, its application range are also limited be subject to larger.《ZK60 magnesium alloy ECAP Deformation structures and mechanical property》
（1 phases of volume 42 in 2013）Precious red wait of middle Wu finds that as cast condition ZK60 alloys can obtain average crystal grain ruler after 2 inferior channel pressings
Very little is 20 μm, its tensile mechanical properties can reach：Tensile strength 250MPa, elongation 17.7%, but continue the passages such as increase and squeeze
The passage of pressure, can cause growing up for crystal grain on the contrary（Crystal grain average grain size is 50 μm after 4 passages）With the reduction of tensile strength
（242MPa）.《The microstructure and mechanical property of ECAP legal systems detailed information crystalline substance ZK60 magnesium alloys》（6 phases in 2011）In what fortune it is refined etc.
It was found that it is about 1-2 μm that As-extruded ZK60 alloys can obtain average grain size after 4 inferior channel pressings, its stretching mechanical
It can reach optimal：Tensile strength 221MPa, elongation 28.1%.But with etc. channel pressings passage increase, its crystal grain refinement effect
Fruit unobvious, alloy strength raising is smaller, but elongation substantially increases（35.1%）.At present, there is continuous corner shearing mould,
It achievees the purpose that abundant crystal grain thinning by corner shearing twice, and the angle of its corner plays during alloy detrusion
Important effect, in the case where experimental condition allows, angle is smaller, its shearing force is bigger, to the degree of grain refinement of alloy
It is more obvious.But requirement of this method to equipment extruding force, mould structure and intensity is very high.
The content of the invention
Goal of the invention：
Effectively realize that the extruding of magnesium alloy grains is cut it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of
Mould and manufacturing process are cut, the mould structure is simple, and method is easy, easily operated and positive effect.
Technical solution：
The present invention is achieved through the following technical solutions：
A kind of extrusion shearing mould for realizing magnesium alloy grains, including briquetting, sleeve and extrusion shearing insert, briquetting and squeeze
Compression shear is cut insert and is assemblied in sleeve, and blank is placed between briquetting and extrusion shearing insert；Extrusion shearing insert is with axis point
Into two symmetrical half modules, half module includes extrusion cup, extruded segment, shearind section, shaped segment and discharge zone；Blank is successively by extruding
Cup, extruded segment, shearind section, shaped segment and discharge zone.
Sleeve inner circle radius R1 is 18-95mm, and end is equipped with empty slot corresponding with extrusion shearing insert discharge zone under a bushing,
Empty slot height L1 is 100-250mm, and empty slot width L2 is 30-50mm；It is equipped with draft angle β with empty slot equal-height position on the inside of sleeve
1°-1.5°。
Extrusion cup cone angle is 85-95 °, and extruding segment length L2 is 15 ~ 40mm, and extruded segment radius of corner r1 is 10-20mm,
Shearind section radius of corner r2 is 5-15mm, and shaped segment radius R2 is 5-15mm, and land length L3 is 3-5mm, outlet area radius
R3 adds 1mm for shaped segment radius R2.
A kind of extrusion ratio R1 for the extrusion shearing mould for realizing magnesium alloy grains2/R22For 12-40.
A kind of manufacturing process for realizing magnesium alloy grains, the manufacturing process comprise the following steps：
Step 1：By cylindrical cast magnesium alloy blank heating to 300-550 DEG C, and keep the temperature 5-20 it is small when, carry out at homogenization
Reason；
Step 2：Sleeve and extrusion shearing insert are assembled together, and are preheated to 300-450 DEG C；Briquetting is preheated to 200-
250℃；
Step 3：Blank after Homogenization Treatments is again heated to 300-550 DEG C, and keep the temperature 2 it is small when after, be positioned in sleeve
The top of extrusion shearing insert, is put into briquetting in blank upper end and is extruded, extrusion speed 1.5-2.5m/min, and empty in sleeve
The outer end of groove carries out bar air-cooled；
Step 4：After extruding, sleeve is paved, and mandril is placed by briquetting, extrusion shearing insert and magnesium above briquetting
Alloy bar material is ejected from sleeve lower end, is opened extrusion shearing insert and is obtained magnesium alloy rod.
Before extruding, high temperature lubricating is smeared in sleeve interior surface, briquetting and blank surface and extrusion shearing insert surfaces externally and internally
Agent.
The material that the manufacturing process uses is Mg-Zn based alloy.
Advantage and effect：
（1）The mould structure is simple, and Sizes are easy for assemble or unload, and manufacturing process is easy, and forming process is stablized, magnesium alloy
Forming quality is high；
（2）Extrusion process is combined by the mould with shears technique, obtains under less extrusion ratio magnesium alloy larger
It is plastically deformed, effectively Refining Mg Alloy crystallite dimension（No more than 20 μm）, and improve the mechanical property of magnesium alloy；
（3）The mould can realize the preparation of fine grain magnesium alloy rod on middle-size and small-size vertical hydraulic press, by converting sleeve diameter
With the diameter of extrusion die insert shaped segment, various sizes of magnesium alloy rod can be obtained.
Brief description of the drawings：
Fig. 1 mould assembling schematic diagrams；
Fig. 2 sleeve schematic diagrames；
Fig. 3 extrusion shearing insert half module schematic diagrames；
Fig. 4 extrusion ratios are 12 Mg-6Zn-0.5Cu-0.6Zr alloy microscopic structures；
Fig. 5 extrusion ratios are 40 Mg-4Zn-1Y-0.6Zr alloy microscopic structures.
Fig. 6 extrusion ratios are 25 Mg-6Zn-0.5Zr alloy microscopic structures.Description of reference numerals：
1st, briquetting；2nd, blank；3rd, sleeve；4th, extrusion shearing insert；5th, extrusion cup；6th, extruded segment；
7th, shearind section；8th, shaped segment；9th, discharge zone；10th, empty slot.
Embodiment：
The present invention is added below in conjunction with the accompanying drawings and is described further：
As shown in Figure 1, Figure 2 and Figure 3, a kind of extrusion shearing mould for realizing magnesium alloy grains, including briquetting 1,3 and of sleeve
Extrusion shearing insert 4, briquetting 1 and extrusion shearing insert 4 are assemblied in sleeve 3, are put between briquetting 1 and extrusion shearing insert 4
Put blank 2；Extrusion shearing insert 4 is divided into two symmetrical half modules with axis, and extrusion cup 5, extruded segment 6, shearing are included on half module
Section 7, shaped segment 8 and discharge zone 9；Blank 2 passes through extrusion cup 5, extruded segment 6, shearind section 7, shaped segment 8 and discharge zone 9 successively.Set
It is briquetting 1, blank 2, extrusion cup 5, extruded segment 6, shearind section 7, shaped segment 8 and discharge zone 9 successively from top to bottom in 3 cavitys of cylinder；
Wherein it is divided into extrusion cup 5, extruded segment 6 and shearind section 7 in half module vertical direction；It is divided into shaped segment 8 and discharge zone in horizontal direction
9。
A kind of extrusion shearing mould for realizing magnesium alloy grains, sleeve inner circle radius R1 scopes are 18-95mm, are being covered
Cylinder lower end is equipped with empty slot 10 corresponding with extrusion shearing insert discharge zone, and empty slot height L1 scopes are 100-250mm, empty slot width
L2 scopes are 30-50mm；It is 1 ° -1.5 ° to be equipped with draft angle β scopes with 10 equal-height position of empty slot on the inside of sleeve.
A kind of extrusion shearing mould for realizing magnesium alloy grains, extrusion cup cone angle scope is 85-95 °, extrudes segment length
It is 15 ~ 40mm to spend L2, and extruded segment radius of corner r1 is 10-20mm, and shearind section radius of corner r2 is 5-15mm, shaped segment radius R2
It is 5-15mm, land length L3 is 3-5mm, and outlet area radius R3 adds 1mm for shaped segment radius R2.
A kind of extrusion ratio R1 for the extrusion shearing mould for realizing magnesium alloy grains2/R22For 12-40, i.e. extrusion ratio is
Blank radius and shaping bar radius squared ratio.
A kind of manufacturing process for realizing magnesium alloy grains, it is characterised in that：The manufacturing process comprises the following steps：
Step 1：By cylindrical cast magnesium alloy blank heating to 300-550 DEG C, and keep the temperature 5-20 it is small when, carry out at homogenization
Reason；
Step 2：Sleeve 3 and extrusion shearing insert 4 are assembled together, and are preheated to 300-450 DEG C；Briquetting 1 is preheated to
200-250℃；
Step 3：Blank after Homogenization Treatments is again heated to 300-550 DEG C, and keep the temperature 2 it is small when after, be positioned over sleeve 3
The top of interior extrusion shearing insert 4, is put into briquetting 1 in 2 upper end of blank and is extruded, extrusion speed 1.5-2.5m/min, and
The outer end of sleeve empty slot carries out bar air-cooled；
Step 4：After extruding, sleeve 3 is paved, and mandril is placed by briquetting 1,4 and of extrusion shearing insert above briquetting
Magnesium alloy rod is ejected from 3 lower end of sleeve, is opened extrusion shearing insert 4 and is obtained magnesium alloy rod.
The manufacturing process for realizing magnesium alloy grains, before extruding, in 3 inner surface of sleeve, briquetting 1 and blank table
Face and 4 surfaces externally and internally of extrusion shearing insert smear high-temperature lubricant.
Embodiment 1
Material selection Mg-6Zn-0.5Cu-0.6Zr alloys, it is 12 to set extrusion ratio.Cylinder first by radius for 17.4mm
Blank heating to 400 DEG C, and keep the temperature 10 it is small when, carry out Homogenization Treatments.Sleeve and extrusion shearing insert are assembled together again,
And it is preheated to 400 DEG C；Briquetting is preheated to 200 DEG C.Blank after Homogenization Treatments is again heated to 400 DEG C, and it is small to keep the temperature 2
Shi Hou, is positioned over the top of extrusion shearing insert in sleeve, and being put into briquetting in blank upper end is extruded, and extrusion speed is
2.5m/min, and it is air-cooled to bar progress in the outer end of sleeve empty slot.Before extruding, in sleeve interior surface, briquetting and blank surface
High-temperature lubricant MoS is smeared with extrusion shearing insert surfaces externally and internally2.After extruding, sleeve is paved, and is put above briquetting
Top set bar ejects briquetting, extrusion shearing insert and magnesium alloy rod from sleeve lower end, opens extrusion shearing insert and obtains magnesium conjunction
Golden bar.Mould structural dimensions are sleeve inner circle radius R118mm, and empty slot height L1 is 100mm, and empty slot width L2 is
30mm；Draft angle β is 1 °；Extrusion cup cone angle is 90 °, and extruding segment length L2 is 25mm, and extruded segment radius of corner r1 is
10mm, shearind section radius of corner r2 are 5mm, and shaped segment radius R2 is 5mm, and land length L3 is 5mm, and outlet area radius R3 is
6mm。
Bar metallographic structure after shaping is as shown in figure 4, its crystal grain is tiny, and average grain size is about 15 μm, alloy tensile
Mechanical property can reach：Tensile strength 320.2MPa, yield strength 240.6MPa, elongation 11.8%
Embodiment 2
Material selection Mg-4Zn-1Y-0.5Zr alloys, extrusion ratio 40.The cylinder blank that radius is 94.5mm is heated first
To 450 DEG C, and keep the temperature 15 it is small when, carry out Homogenization Treatments.Sleeve and extrusion shearing insert are assembled together again, and are preheated to
450℃；Briquetting is preheated to 250 DEG C.Blank after Homogenization Treatments is again heated to 450 DEG C, and keep the temperature 2 it is small when after, place
In the top of extrusion shearing insert in sleeve, it is put into briquetting in blank upper end and is extruded, extrusion speed 1.5m/min, and
The outer end of sleeve empty slot carries out bar air-cooled.Before extruding, in sleeve interior surface, briquetting and blank surface and extrusion shearing insert
Surfaces externally and internally smears high-temperature lubricant MoS2.After extruding, sleeve is paved, and above briquetting place mandril by briquetting,
Extrusion shearing insert and magnesium alloy rod are ejected from sleeve lower end, are opened extrusion shearing insert and are obtained magnesium alloy rod.Mould master
It is that sleeve inner circle radius R1 is 95mm to want structure size, and empty slot height L1 is 250mm, and empty slot width L2 is 50mm；Draft angle β
It is 1.5 °；Extrusion cup cone angle is 95 °, and extruding segment length L2 is 15mm, and extruded segment radius of corner r1 is 20mm, shearind section fillet
Radius r2 is 15mm, and shaped segment radius R2 is 15mm, and land length L3 is 3mm, and outlet area radius R3 is 16mm.
Bar metallographic structure after shaping is as shown in figure 5, its crystal grain is tiny, and average grain size is about 20 μm, alloy tensile
Mechanical property can reach：Tensile strength 386.7MPa, yield strength 279.2MPa, elongation 19.5%.
Embodiment 3
Material selection Mg-6Zn-0.5Zr alloys, extrusion ratio 25.The cylinder blank that radius is 49.5mm is heated to first
350 DEG C, and keep the temperature 20 it is small when, carry out Homogenization Treatments.Sleeve and extrusion shearing insert are assembled together again, and are preheated to
350℃；Briquetting is preheated to 220 DEG C.Blank after Homogenization Treatments is again heated to 350 DEG C, and keep the temperature 2 it is small when after, place
In the top of extrusion shearing insert in sleeve, it is put into briquetting in blank upper end and is extruded, extrusion speed 2m/min, and covering
The outer end of cylinder empty slot carries out bar air-cooled.Before extruding, in sleeve interior surface, briquetting and blank surface and extrusion shearing insert
Smear high-temperature lubricant MoS in outer surface2.After extruding, sleeve is paved, and above briquetting place mandril by briquetting, squeeze
Compression shear is cut insert and magnesium alloy rod and is ejected from sleeve lower end, opens extrusion shearing insert and obtains magnesium alloy rod.Mould is main
Structure size is that sleeve inner circle radius R1 is 50mm, and empty slot height L1 is 150mm, and empty slot width L2 is 40mm；Draft angle β is
1.2°；Extrusion cup cone angle is 85 °, and extruding segment length L2 is 20mm, and extruded segment radius of corner r1 is 15mm, and shearind section fillet is partly
Footpath r2 is 10mm, and shaped segment radius R2 is 10mm, and land length L3 is 4mm, and outlet area radius R3 is 11mm.
Bar metallographic structure after shaping is as shown in fig. 6, its crystal grain is tiny, and average grain size is about 15 μm, alloy tensile
Mechanical property can reach：Tensile strength 359.2MPa, yield strength 258.7MPa, elongation 16.5%.
Embodiment 4
Material selection Mg-6Zn-0.5Gd-0.4Zr alloys, it is 35 to set extrusion ratio.Cylinder first by radius for 47.3mm
Blank heating to 550 DEG C, and keep the temperature 5 it is small when, carry out Homogenization Treatments.Sleeve and extrusion shearing insert are assembled together again,
And it is preheated to 300 DEG C；Briquetting is preheated to 240 DEG C.Blank after Homogenization Treatments is again heated to 550 DEG C, and it is small to keep the temperature 2
Shi Hou, is positioned over the top of extrusion shearing insert in sleeve, and being put into briquetting in blank upper end is extruded, and extrusion speed is
1.8m/min, and it is air-cooled to bar progress in the outer end of sleeve empty slot.Before extruding, in sleeve interior surface, briquetting and blank surface
High-temperature lubricant MoS is smeared with extrusion shearing insert surfaces externally and internally2.After extruding, sleeve is paved, and is put above briquetting
Top set bar ejects briquetting, extrusion shearing insert and magnesium alloy rod from sleeve lower end, opens extrusion shearing insert and obtains magnesium conjunction
Golden bar.Mould structural dimensions are that sleeve inner circle radius R1 is 47.5mm, and empty slot height L1 is 120mm, empty slot width L2
For 30mm；Draft angle β is 1 °；Extrusion cup cone angle is 90 °, and extruding segment length L2 is 25mm, and extruded segment radius of corner r1 is
10mm, shearind section radius of corner r2 are 8mm, and shaped segment radius R2 is 8mm, and land length L3 is 5mm, and outlet area radius R3 is
9mm。
Bar metallographic structure after shaping is as shown in figure 4, its crystal grain is tiny, and average grain size is about 10 μm, alloy tensile
Mechanical property can reach：Tensile strength 360.2MPa, yield strength 270.6MPa, elongation 17.8%.
Claims (7)
1. a kind of extrusion shearing mould for realizing magnesium alloy grains, including briquetting（1）, sleeve（3）And extrusion shearing insert
（4）, it is characterised in that：Briquetting（1）With extrusion shearing insert（4）It is assemblied in sleeve（3）It is interior, in briquetting（1）Inlayed with extrusion shearing
Block（4）Between place blank（2）；Extrusion shearing insert（4）Two symmetrical half modules are divided into axis, half module includes extrusion cup
（5）, extruded segment（6）, shearind section（7）, shaped segment（8）And discharge zone（9）；Blank（2）Pass through extrusion cup successively（5）, extruded segment
（6）, shearind section（7）, shaped segment（8）And discharge zone（9）.
A kind of 2. extrusion shearing mould for realizing magnesium alloy grains according to claim 1, it is characterised in that：Set
Cylinder inner circle radius（R1）18-95mm, holds be equipped with empty slot corresponding with extrusion shearing insert discharge zone under a bushing（10）, empty slot height
Degree（L1）100-250mm, empty slot width（L2）30-50mm；Sleeve inner side and empty slot（10）Equal-height position is equipped with draft angle（β）
1°-1.5°。
A kind of 3. extrusion shearing mould for realizing magnesium alloy grains according to claim 1, it is characterised in that：Squeeze
Compression cup cone angle（α）85-95 °, extrude segment length（L2）15 ~ 40mm, extruded segment radius of corner（r1）10-20mm, shearind section fillet
Radius（r2）5-15mm, shaped segment radius（R2）5-15mm, land length（L3）3-5mm, outlet area radius（R3）For shaping
Section radius（R2）Add 1mm.
A kind of 4. extrusion shearing mould for realizing magnesium alloy grains according to claim 1, it is characterised in that：Squeeze
Pressure ratio R12/R22For 12-40.
A kind of 5. manufacturing process for realizing magnesium alloy grains, it is characterised in that：The manufacturing process comprises the following steps：
Step 1：By cylindrical cast magnesium alloy blank heating to 300-550 DEG C, and keep the temperature 5-20 it is small when, carry out at homogenization
Reason；
Step 2：By sleeve（3）With extrusion shearing insert（4）It is assembled together, and is preheated to 300-450 DEG C；Briquetting（1）In advance
Heat is to 200-250 DEG C；
Step 3：By the blank after Homogenization Treatments（2）Be again heated to 300-550 DEG C, and keep the temperature 2 it is small when after, be positioned over set
Cylinder（3）Interior extrusion shearing insert（4）Top, in blank（2）Upper end is put into briquetting（1）Extruded, extrusion speed 1.5-
2.5m/min, and it is air-cooled to bar progress in the outer end of sleeve empty slot；
Step 4：After extruding, by sleeve（3）Pave, and mandril is placed by briquetting above briquetting（1）, extrusion shearing edge
Block（4）With magnesium alloy rod from sleeve（3）Lower end ejects, and opens extrusion shearing insert（4）Obtain magnesium alloy rod.
6. the manufacturing process according to claim 5 for realizing magnesium alloy grains, it is characterised in that：Before extruding, covering
Cylinder（3）Inner surface, briquetting（1）And blank surface and extrusion shearing insert（4）Surfaces externally and internally smears high-temperature lubricant.
7. the manufacturing process for realizing magnesium alloy grains according to claim 5, it is characterised in that：The manufacturing process is adopted
Material is Mg-Zn based alloy.
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|---|---|---|---|
| CN201711234155.1A CN107974652B (en) | 2017-11-30 | 2017-11-30 | A kind of extrusion shearing mold and manufacturing process for realizing magnesium alloy grains |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918669A (en) * | 2019-12-18 | 2020-03-27 | 西南交通大学 | Moulding deformation method for refined crystal grains and twin crystal material preparation device |
| CN112620372A (en) * | 2020-12-23 | 2021-04-09 | 太原理工大学 | Mold and method for preparing magnesium alloy plate strip with weak basal plane texture by continuous differential extrusion |
| CN112853186A (en) * | 2021-01-10 | 2021-05-28 | 沈阳工业大学 | Fine-grain high-toughness wrought magnesium alloy and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206083461U (en) * | 2016-09-23 | 2017-04-12 | 湖南科技大学 | Magnesium alloy extrusion die |
-
2017
- 2017-11-30 CN CN201711234155.1A patent/CN107974652B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206083461U (en) * | 2016-09-23 | 2017-04-12 | 湖南科技大学 | Magnesium alloy extrusion die |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918669A (en) * | 2019-12-18 | 2020-03-27 | 西南交通大学 | Moulding deformation method for refined crystal grains and twin crystal material preparation device |
| CN110918669B (en) * | 2019-12-18 | 2021-06-08 | 西南交通大学 | Moulding deformation method for refined crystal grains and twin crystal material preparation device |
| CN112620372A (en) * | 2020-12-23 | 2021-04-09 | 太原理工大学 | Mold and method for preparing magnesium alloy plate strip with weak basal plane texture by continuous differential extrusion |
| CN112620372B (en) * | 2020-12-23 | 2022-05-24 | 太原理工大学 | Mold and method for preparing weak basal plane texture magnesium alloy plate strip through continuous differential extrusion |
| CN112853186A (en) * | 2021-01-10 | 2021-05-28 | 沈阳工业大学 | Fine-grain high-toughness wrought magnesium alloy and preparation method thereof |
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