CN105665463A - Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof - Google Patents
Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof Download PDFInfo
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- CN105665463A CN105665463A CN201610145436.9A CN201610145436A CN105665463A CN 105665463 A CN105665463 A CN 105665463A CN 201610145436 A CN201610145436 A CN 201610145436A CN 105665463 A CN105665463 A CN 105665463A
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- extrusion
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Classifications
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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
- B21C23/22—Making metal-coated products; Making products from two or more metals
- B21C23/24—Covering indefinite lengths of metal or non-metal material with a metal coating
-
- 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
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- 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
- B21C29/00—Cooling or heating work or parts of the extrusion press; Gas treatment of work
- B21C29/04—Cooling or heating of press heads, dies or mandrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof, and relates to the technical field of production of double-layer metal composite pipes. The mold comprises a base, an extrusion sleeve, an extrusion rod, an inner extrusion mold and an outer extrusion mold. The mold, providedby the invention, is simple in structure and convenient for manufacturing and use, can be applied to continuous production of metal composite pipes with different inner and outer materials, and is low in energy consumption, short in flow, flexible in structure and excellent in reusability, interfaces can reach high strength of metallurgical bond,and high-quality and high-efficiency semi-solid extrusion molding can be realized.
Description
Technical field
The present invention relates to the production technical field of Double layer metal composite pipe, particularly prepare mould and the method for aluminium magnesium double wall tube.
Background technology
Composite double layer pipe refers to that internal layer, skin are by dissimilar metal, and the tubing being prepared from by certain working method, wherein layer materials has different character respectively, it is possible to meet the requirement of different operating environment.
At present, composite double layer pipe all has broad application prospects in fields such as petroleum industry, aerospace, household electrical appliances manufacture, automotive industrys. Along with the development of China's economy, national industry constantly increases for the demand of composite pipe, and the Performance and quality of tubing has been had more and more higher requirement. In addition, owing to China's environmental problem is day by day outstanding, energy contradiction highlights, and the production technique of composite double layer pipe is proposed greenization, short route, low, the high requirement of lumber recovery of consuming energy.
The production technique of the metal composite double wall tube extensively adopted at present mainly contains hydraulic expanding-forming method, explosive welding connection, drawing composite algorithm, composition board method for brazing, centrifugal casting. Hydraulic expanding-forming method refers to after inner and outer pipes prepackage being prepared, seal the two ends of inner tube and it is filled with highly pressurised liquid, utilize hydraulic pressure to swell and make inner tube generation viscous deformation, outer tube generation elasticity is out of shape, outer tube resilient-elasticity recovery after relief pressure, interior pipe viscous deformation does not recover, thus produces unrelieved stress, reaches and fits tightly. This kind of methods combining power is smaller, can only reach the metallurgical compound that machinery compound can not realize on interface, and sealed inner tube technical difficulty is bigger, it is difficult to produce in a large number. Explosive welding connection utilizes fired charge in pipe, and the shockwave of blast produces huge pressure on the interface of inner and outer pipes, and produces high temperature so that the metal on interface at high temperature under high pressure atomic diffusion occurs thus produces metallurgical binding. This kind of method can only production length shorter, the multiple-unit tube that caliber is thicker. And explode and it is difficult to control, produce dangerous high. Drawing composite algorithm, it is the inside and outside double wall tube base that prepackage prepares is subtracted in drawing mould footpath simultaneously or expands footpath drawing, in in drawing process there is viscous deformation simultaneously and be subject to immense pressure on interface in outer layer metal, and this makes on interface, atomic diffusion to occur and realize metallurgical binding. Blank must be carried out preprocessing and assembling by this kind of method, and it is higher to consume energy in drawing process, and products obtained therefrom surface quality is poor. Composition board method for brazing is the technique being specifically designed to production Bundy tube.It refers to and is crimped onto on plug by carrying out 720 ° after two-sided for finish rolling sheet strip of stainless steel copper facing, and after heating, copper thawing fills up weld seam as solder, thus obtains stainless steel-copper double-layer composite pipe. This kind of method mature production technology, but the dimensional requirement of finish rolling steel plate is very high, and the weld strength of soldering simultaneously is lower, is the short plate of its structure. Centrifugal casting is under the influence of centrifugal force, by successively adding the method that two kinds of molten metals obtain double wall tube base. Also need following process just can obtain multiple-unit tube product after obtaining pipe base. This kind of method achieves metallurgical binding on interface, but also needs following process, and inner surface quality is poor usually. Meanwhile, requirement for two kinds of metals is higher, it is necessary to various physicals is similar. Therefore, exploitation a kind of high-level efficiency, short route, greenization, and the high production technique of interface bond strength is necessary.
Aluminium magnesium composite double layer pipe is the composite pipe that a kind of excellent performance and application potential are huge. It is low that its outer field aluminium alloy has density, intensity height, and thermal conductivity is good, easily the feature of processing. Internal layer magnesium alloy has excellent cutting performance, and neutrality, alkaline environment corrosion resistance nature are strong, shock resistance, the advantages such as specific tenacity is big. Aluminium magnesium composite double layer pipe can substitute the stainless steel-copper double wall tube (also known as Bundy tube) extensively adopted at present at automobile and field of household appliances, has wide market potential.
Summary of the invention
The present invention proposes a kind of to overcome above prior art defect, High-efficient Production can go out the mould of high-quality double-layer composite pipe semi-solid state lateral extrusion.
The present invention comprises base, compression sleeve, extrusion stem, interior overflow mould and outer overflow mould.
Groove is offered in the side of base, and outer overflow mould and interior overflow mould are placed in described groove respectively, and interior overflow mould is arranged in the outside of groove; Outside overflow mould offers extrusion cavities, base is offered the forming tube outlet concentric with described extrusion cavities; Interior overflow mould center is provided with a recessed type cavity-like termination that overflow mould diameter reduces gradually toward the outside, and described termination is arranged with extrusion cavities is concentric, and local, described termination is inserted in extrusion cavities, and arranges gap between the outside surface of termination and the internal surface of extrusion cavities.
Interior overflow mould outside recessed type cavity-like termination two outer blank through holes in footpath such as be radially symmetrical arranged.
It is fixedly connected with compression sleeve in the outside of the base side offering groove, offers the interior extruded hole concentric with extrusion cavities at the center of compression sleeve, the compression sleeve that blank through hole outer with two is corresponding offers outer extruded hole respectively.
Extrusion stem is made up of interconnective two the cylindrical outer tube extrusion stems in outer end and a cylindrical interior pipe extrusion stem, the inner of two cylindrical outer tube extrusion stems is placed in an outer extruded hole separately, cylindrical interior pipe extrusion stem forms by with the big footpath section of interior extruded hole adaptation and the path section with extrusion cavities adaptation, and big footpath section with one heart and is fixedly connected with path section.
The mould structure that the present invention proposes is simple, convenient to be manufactured and uses, the consecutive production of the metal composite pipe to inside and outside differing materials can be used for, its energy consumption is low, flow process is short, interfacial energy reaches the metallurgical binding of high strength, its mould structure is flexible, reusability is good, it may be achieved high-level efficiency, high-quality semi-solid squeeze forming.
In addition, in order to for heating mould and ensure temperature remained constant in extrusion process, the present invention also arranges resistive heater on compression sleeve.
In order to enable to go out the goods extruded from forming tube, there is certain shaping degree, export in the base of periphery in forming tube and cooling tube is set.
The interior overflow mould different in order to conveniently assemble and disassemble and outer overflow mould, described base and compression sleeve are bolted.
For the ease of the shaping of interior pipe, the surface of extrusion cavities of the present invention is provided with the first guide curve surface.
In order to reduce the one-tenth form drag of outer tube, the outside surface of described termination is provided with the 2nd guide curve surface.
For the ease of the shaping of outer tube. The internal surface of described termination is provided with the 3rd guide curve surface.
Another object of the present invention is the application of the mould proposing above double-layer composite pipe semi-solid state lateral extrusion.
That is: for processing the outer tubing being internal layer and skin and being dissimilar metal.
Comprise the following steps:
1) two outer extruded holes that two sections of semi-solid state outer layer metal materials are placed in compression sleeve respectively, are placed in the interior extruded hole of compression sleeve by semi-solid state inner layer metal material;
2) put horizontal for the axis of base, interior overflow mould, outer overflow mould and extrusion stem, by pushing extrusion stem to base side, obtain two-layer compound tubing in the forming tube exit of base.
Processing process of the present invention is simple, consumes energy lower, is convenient to produce.
In order to be beneficial to extruding and in shape, when pushing extrusion stem, by the resistive heater arranged on compression sleeve, make outer layer metal material and inner layer metal material be incubated to semi-solid state; By exporting the cooling tube of periphery setting in forming tube, the blank of the semi-solid state extruded is solidified.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional view of the mould of double-layer composite pipe semi-solid state lateral extrusion.
Embodiment
One, mould structure illustrates:
As shown in Figure 1, the mould of double-layer composite pipe semi-solid state lateral extrusion of the present invention is made up of base 10, compression sleeve 16, extrusion stem 1, interior overflow mould 12 and outer overflow mould 11.
Groove is offered on the right side of base 10, and outer overflow mould 11 and interior overflow mould 12 are placed in groove respectively, and the periphery of outer overflow mould 11 arranges boss, and interior overflow mould 12 is arranged in the outside of groove, and placed separately on the boss of outer overflow mould 11. Offering extrusion cavities 8 on overflow mould 11 outside, the surface of extrusion cavities 8 is provided with the first guide curve surface.
Offering the cylindrical forming tube outlet 18 concentric with extrusion cavities 8 on base 10, the diameter of forming tube outlet 18 is slightly larger than the outer diameter of extrusion cavities 8.
Export in the base 10 of 18 peripheries in forming tube and cooling tube 9 is set.
Interior overflow mould 12 center is provided with a recessed type cavity-like termination 12-1 that overflow mould 11 diameter reduces gradually toward the outside, termination 12-1 is arranged with extrusion cavities 8 is concentric, the local of termination 12-1 is inserted in extrusion cavities 8, and arranges gap between the internal surface of the outside surface of termination 12-1 and extrusion cavities 8. Outer, the internal surface of termination 12-1 are respectively equipped with the 2nd guide curve surface and the 3rd guide curve surface. Interior overflow mould 12 outside recessed type cavity-like termination 12-1 two outer blank through hole 12-2 in footpath such as be radially symmetrical arranged.
Compression sleeve 16 is placed in the right side of base 10, by having bolt hole 13 in the outside of base 10, in compression sleeve 13 arranged outside, coordinates and is mutually permanently connected with bolt formation.
Offer the interior extruded hole 2 concentric with extrusion cavities 8 at the center of compression sleeve 16, the compression sleeve 16 that blank through hole 12-2 outer with two is corresponding offers outer extruded hole 17 respectively, resistive heater 15 is also set in the periphery of compression sleeve 16.
Extrusion stem 1 is made up of interconnective two the cylindrical outer tube extrusion stems 4 in outer end and a cylindrical interior pipe extrusion stem 7, the inner of two cylindrical outer tube extrusion stems 4 is placed in an outer extruded hole 17 separately, cylindrical interior pipe extrusion stem 7 forms by with the big footpath section of interior extruded hole 2 adaptation and the path section with termination 12-1 adaptation, and big footpath section with one heart and is fixedly connected with path section.
Two, processing double-layer magnalium multiple-unit tube is applied:
Two outer extruded holes 17 that 1, two sections of semi-solid aluminium alloy blanks 14 are placed in compression sleeve 16 respectively, are placed in the interior extruded hole 2 of compression sleeve 16 by semi-solid magnesium alloy blank 3.
2, put horizontal for the axis of base 10, interior overflow mould 12, outer overflow mould 11 and extrusion stem 1.
3, resistive heater 15 is started, making semi-solid magnesium alloy blank 3 obtain second-heating temperature, and be incubated at 570～585 DEG C, semi-solid aluminium alloy blank obtains second-heating temperature, and be incubated at 14590～14610 DEG C, the solid rate of magnesium, aluminium alloy is 70%～90%. Start the cooling circulation liquid of cooling tube, make the forming tube of base 10 export 18 inwalls and be incubated at 100～150 DEG C.
4, starting the working power of extrusion stem 1, by pushing extrusion stem 1 to base 10 side constant speed, the forming tube at base 1 exports 18 places and obtains two-layer compound tubing.
The present invention is shaped principle:
Along with extrusion stem 1 is to base 10 1 lateral movement, aluminum alloy blank 14 through two outer extruded holes 17 by outer tube seam chamber 5 evenly inwardly the termination 12-1 of overflow mould 12 concentrate, under the acting in conjunction from the extrusion cavities 8 of outer overflow mould 11 and the termination 12-1 of interior overflow mould 12, subtract footpath form annular spread.
Simultaneously, along with extrusion stem 1 is to base 10 1 lateral movement, magnesium alloy blank 3 is through the extruding of the big footpath section of interior pipe extrusion stem 7, the termination 12-1 of overflow mould 12 in guiding, determining under footpath limits in the guiding of path section of interior pipe extrusion stem 7 and interior pipe, magnesium alloy blank 3 obtains subtracting footpath by the gap between the path section of interior pipe extrusion stem 7 and termination 12-1 and forms annular spread.
The aluminum alloy blank 14 of annular spread and magnesium alloy blank 3 obtain seam at extrusion cavities 8 place, form the complex blank of semi-solid state, then export the cooling of 18 through forming tube, are shaped.
Claims (10)
1. the mould of double-layer composite pipe semi-solid state lateral extrusion, it is characterised in that comprise base, compression sleeve, extrusion stem, interior overflow mould and outer overflow mould;
Groove is offered in the side of base, and outer overflow mould and interior overflow mould are placed in described groove respectively, and interior overflow mould is arranged in the outside of groove; Outside overflow mould offers extrusion cavities, base is offered the forming tube outlet concentric with described extrusion cavities; Interior overflow mould center is provided with a recessed type cavity-like termination that overflow mould diameter reduces gradually toward the outside, and described termination is arranged with extrusion cavities is concentric, and local, described termination is inserted in extrusion cavities, and arranges gap between the outside surface of termination and the internal surface of extrusion cavities;
Interior overflow mould outside recessed type cavity-like termination two outer blank through holes in footpath such as be radially symmetrical arranged;
It is fixedly connected with compression sleeve in the outside of the base side offering groove, offers the interior extruded hole concentric with extrusion cavities at the center of compression sleeve, the compression sleeve that blank through hole outer with two is corresponding offers outer extruded hole respectively;
Extrusion stem is made up of interconnective two the cylindrical outer tube extrusion stems in outer end and a cylindrical interior pipe extrusion stem, the inner of two cylindrical outer tube extrusion stems is placed in an outer extruded hole separately, cylindrical interior pipe extrusion stem forms by with the big footpath section of interior extruded hole adaptation and the path section with termination adaptation, and big footpath section with one heart and is fixedly connected with path section.
2. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 1, it is characterised in that resistive heater is set on compression sleeve.
3. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 1 or 2, it is characterised in that export in the base of periphery in forming tube and cooling tube is set.
4. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 1, it is characterised in that described base and compression sleeve are bolted.
5. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 1, it is characterised in that the surface of described extrusion cavities is provided with the first guide curve surface.
6. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 1, it is characterised in that the outside surface of described termination is provided with the 2nd guide curve surface.
7. the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 6, it is characterised in that the internal surface of described termination is provided with the 3rd guide curve surface.
8. the application of the mould of double-layer composite pipe semi-solid state lateral extrusion as claimed in claim 1, it is characterised in that be internal layer and the outer tubing for dissimilar metal for processing outer.
9. the application of the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 8, it is characterised in that comprise the following steps:
1) two outer extruded holes that two sections of semi-solid state outer layer metal materials are placed in compression sleeve respectively, are placed in the interior extruded hole of compression sleeve by semi-solid state inner layer metal material;
2) put horizontal for the axis of base, interior overflow mould, outer overflow mould and extrusion stem, by pushing extrusion stem to base side, obtain two-layer compound tubing in the forming tube exit of base.
10. the application of the mould of double-layer composite pipe semi-solid state lateral extrusion according to claim 9, it is characterised in that when pushing extrusion stem, by the resistive heater arranged on compression sleeve, makes outer layer metal material and inner layer metal material be incubated to semi-solid state; By exporting the cooling tube of periphery setting in forming tube, the blank of the semi-solid state extruded is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145436.9A CN105665463A (en) | 2016-03-15 | 2016-03-15 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610145436.9A CN105665463A (en) | 2016-03-15 | 2016-03-15 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
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| CN105665463A true CN105665463A (en) | 2016-06-15 |
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| CN201610145436.9A Pending CN105665463A (en) | 2016-03-15 | 2016-03-15 | Semi-solid horizontal extrusion mold for double-layer composite pipes and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326065A (en) * | 2018-02-10 | 2018-07-27 | 山东大学 | A kind of fiber reinforcement square tube class proximate matter Compound Extrusion device and its pressing method |
| CN108356086A (en) * | 2018-02-10 | 2018-08-03 | 山东大学 | A kind of fiber reinforcement siding class proximate matter Compound Extrusion device and its pressing method |
| CN110026445A (en) * | 2019-05-28 | 2019-07-19 | 湖南科技大学 | Compound preparation facilities and method are squeezed in the vertical casting of covered metal spare composite material |
| CN110695336A (en) * | 2019-10-18 | 2020-01-17 | 太原科技大学 | Semisolid magnesium alloy gradient extrusion combined die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006120980A1 (en) * | 2005-05-06 | 2006-11-16 | Tokyorika, Inc. | Apparatus for feeding semisolidified metallic slurry material, vessel with bottom, feeding method, molding apparatus, and molding method |
| DE102009033532A1 (en) * | 2009-07-10 | 2011-01-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder for producing light metal component by semi-solid process, comprises cylinder, screw conveyor, device, heating device and degassing zone, where device is used for transferring material into cylinder |
| CN203817082U (en) * | 2014-05-13 | 2014-09-10 | 扬州宏福铝业有限公司 | Semi-solid backward extrusion forming mold for double-layer metal composite pipe |
| CN104307915A (en) * | 2013-02-27 | 2015-01-28 | 滁州华尊电气科技有限公司 | Production technology for electrical buses which use high-quality aluminum ingots as raw materials |
| CN105499299A (en) * | 2016-01-11 | 2016-04-20 | 北京科技大学 | Semi-solid horizontal-type extrusion die for manufacturing aluminum-magnesium clad double-layered tube and method |
-
2016
- 2016-03-15 CN CN201610145436.9A patent/CN105665463A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006120980A1 (en) * | 2005-05-06 | 2006-11-16 | Tokyorika, Inc. | Apparatus for feeding semisolidified metallic slurry material, vessel with bottom, feeding method, molding apparatus, and molding method |
| DE102009033532A1 (en) * | 2009-07-10 | 2011-01-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder for producing light metal component by semi-solid process, comprises cylinder, screw conveyor, device, heating device and degassing zone, where device is used for transferring material into cylinder |
| CN104307915A (en) * | 2013-02-27 | 2015-01-28 | 滁州华尊电气科技有限公司 | Production technology for electrical buses which use high-quality aluminum ingots as raw materials |
| CN203817082U (en) * | 2014-05-13 | 2014-09-10 | 扬州宏福铝业有限公司 | Semi-solid backward extrusion forming mold for double-layer metal composite pipe |
| CN105499299A (en) * | 2016-01-11 | 2016-04-20 | 北京科技大学 | Semi-solid horizontal-type extrusion die for manufacturing aluminum-magnesium clad double-layered tube and method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326065A (en) * | 2018-02-10 | 2018-07-27 | 山东大学 | A kind of fiber reinforcement square tube class proximate matter Compound Extrusion device and its pressing method |
| CN108356086A (en) * | 2018-02-10 | 2018-08-03 | 山东大学 | A kind of fiber reinforcement siding class proximate matter Compound Extrusion device and its pressing method |
| CN108326065B (en) * | 2018-02-10 | 2019-07-09 | 山东大学 | A kind of fiber reinforcement square tube class profile Compound Extrusion device and its pressing method |
| CN108356086B (en) * | 2018-02-10 | 2019-07-09 | 山东大学 | A kind of fiber reinforcement siding class profile Compound Extrusion device and its pressing method |
| CN110026445A (en) * | 2019-05-28 | 2019-07-19 | 湖南科技大学 | Compound preparation facilities and method are squeezed in the vertical casting of covered metal spare composite material |
| CN110026445B (en) * | 2019-05-28 | 2023-08-01 | 湖南科技大学 | Vertical casting extrusion composite preparation device and method for cladding structure metal composite material |
| CN110695336A (en) * | 2019-10-18 | 2020-01-17 | 太原科技大学 | Semisolid magnesium alloy gradient extrusion combined die |
| CN110695336B (en) * | 2019-10-18 | 2021-05-18 | 太原科技大学 | Semisolid magnesium alloy gradient extrusion combined die |
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Application publication date: 20160615 |