KR20110013791A - Manufacturing method of mg-zn base wrought magnesium alloys / aluminium alloy clad sheet and mg-zn base wrought magnesium alloys / aluminium alloy clad sheet thereby - Google Patents
Manufacturing method of mg-zn base wrought magnesium alloys / aluminium alloy clad sheet and mg-zn base wrought magnesium alloys / aluminium alloy clad sheet thereby Download PDFInfo
- Publication number
- KR20110013791A KR20110013791A KR1020090071424A KR20090071424A KR20110013791A KR 20110013791 A KR20110013791 A KR 20110013791A KR 1020090071424 A KR1020090071424 A KR 1020090071424A KR 20090071424 A KR20090071424 A KR 20090071424A KR 20110013791 A KR20110013791 A KR 20110013791A
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- Prior art keywords
- aluminum
- magnesium alloy
- plate
- based magnesium
- clad material
- Prior art date
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 71
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 229910000838 Al alloy Inorganic materials 0.000 title description 3
- 239000000463 material Substances 0.000 claims abstract description 81
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 76
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 76
- 238000005253 cladding Methods 0.000 claims abstract description 22
- 238000005098 hot rolling Methods 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000010030 laminating Methods 0.000 claims abstract description 5
- 150000002680 magnesium Chemical class 0.000 claims abstract 2
- 238000004381 surface treatment Methods 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052749 magnesium Inorganic materials 0.000 abstract description 15
- 239000011777 magnesium Substances 0.000 abstract description 15
- 238000005304 joining Methods 0.000 abstract description 9
- 239000011701 zinc Substances 0.000 description 49
- 238000000879 optical micrograph Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 238000003475 lamination Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910003023 Mg-Al Inorganic materials 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- PGTXKIZLOWULDJ-UHFFFAOYSA-N [Mg].[Zn] Chemical compound [Mg].[Zn] PGTXKIZLOWULDJ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229910001175 oxide dispersion-strengthened alloy Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- -1 scale Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/10—Aluminium or alloys thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/08—Non-ferrous metals or alloys
- B23K2103/15—Magnesium or alloys thereof
Abstract
The present invention provides a method for producing a clad material of Mg-Zn-based magnesium alloys and aluminum prepared by joining rolling after heating the Mg-Zn-based magnesium plate and aluminum plate at the same temperature and the Mg-Zn-based magnesium alloy prepared by It relates to a clad material of aluminum.
Clad material manufacturing method of Mg-Zn-based magnesium alloy and aluminum according to the present invention, the step of laminating the Mg-Zn-based magnesium alloy plate and aluminum plate and heating to 250 ~ 320, the laminated magnesium plate and aluminum plate It comprises the step of bonding by hot rolling at a reduction ratio of 30 to 50%.
According to the Mg-Zn-based magnesium and aluminum cladding material of the present invention and a method of manufacturing the same, a healthy magnesium / aluminum cladding material and a method of producing the same may be obtained by using a sheet of Mg-Zn-based magnesium alloy having excellent workability even at a low processing temperature. It becomes possible.
Mg-Zn-based magnesium alloy, aluminum, clad material, plate bonding, hot rolling
Description
The present invention relates to a method for producing a clad material of Mg-Zn-based magnesium alloy and aluminum, and to a clad material of Mg-Zn-based magnesium alloy and aluminum produced by this, in particular Mg-Zn-based magnesium plate and aluminum plate at the same temperature The present invention relates to a method for producing a clad material of Mg-Zn-based magnesium alloy and aluminum produced by bonding rolling after heating and to a clad material of Mg-Zn-based magnesium alloy and aluminum produced thereby.
Recently, in order to maximize the performance of materials throughout the industry, material tailoring technology using a combination of different materials has been actively developed. Tailored materials can be divided into integral materials and cladding materials. Integral materials include FRM (Fiber Reinforced Metal), oxide dispersion strengthened alloy, etc., in which metals and functional materials such as carbon fiber are combined. Clad material is a composite material in which different materials are clad by rolling or welding. Integral materials are mainly applied to high-tech industries such as aerospace and aviation, but there are many limitations in expanding the field of application due to manufacturing difficulties and cost. Therefore, clad material which can be manufactured relatively easily has been widely applied to industries such as home appliances, automobiles and heavy industries.
According to Korean Industrial Standard KS D 0234-1992, the cladding material is defined as 'to cover one metal with the other metal over the entire surface and the interface is metallographically bonded'. Such a cladding material has a great economical advantage because it can maximize the performance of the material by using the appropriate combination of materials and save expensive materials. Thanks to these advantages, the combination of materials is gradually diversifying, and the field of application is expanding. Clad products are used in a variety of applications, including kitchen appliances, home appliances, automotive parts, nuclear and petrochemical pressure vessels.
Examples of the method for producing the clad material include diffusion bonding, explosion welding, hot rolling, and the like. Diffusion bonding has excellent disadvantages in the performance of the joint, but it takes time and is expensive, resulting in a low economic feasibility. Explosion welding is difficult to find a place of work due to noise problems, and mass production is difficult due to problems such as chemical quantity. Therefore, hot rolling technology is currently the most economical and mass commercial way to produce clad products. As a method of manufacturing the clad material by hot rolling, surface treatment before joining to remove foreign substances such as scale, oil, and dirt present on the joining surface is a kind of solid phase joining. At the time of joining, care should be taken to prevent the formation of oxide film on the joining interface. However, in the commercial process of mass production of products, it is difficult to roll in a vacuum atmosphere or in a reducing gas atmosphere to protect the interface. Therefore, even if the plate surface treatment, the oxide film is formed again when heating the plate causes a problem when bonding.
Magnesium alloy plate, which has been in the spotlight as a lightweight material recently, enables lightweight road, aviation, and rail transportation means, and can be widely applied as an exterior material for electronic communication devices such as mobile communication, notebook computers, and cameras, but surface treatment is difficult. There is a lot of problems to overcome in order to use as a single material due to lack of corrosion resistance.
In order to solve this problem, there have been attempts to make magnesium / aluminum cladding material, but when manufacturing magnesium / aluminum cladding material using conventional Mg-Al-based magnesium alloy sheet (AZ31), the Mg-Al-based magnesium alloy Due to the limited plasticity, it was impossible to make magnesium / aluminum clad material.
The present invention has been made to solve the conventional problems as described above, the object of the present invention is to produce a magnesium / aluminum clad material using the Mg-Zn-based magnesium alloy sheet showing excellent workability even at low processing temperature It is to provide a clad material of the Mg-Zn-based magnesium alloy and aluminum, and a clad material of the Mg-Zn-based magnesium alloy and aluminum produced thereby.
Clad material manufacturing method of Mg-Zn-based magnesium alloy and aluminum according to the present invention in order to achieve the above object, the step of laminating the Mg-Zn-based magnesium alloy plate and aluminum plate and heating to 250 ~ 320, the lamination And hot rolling the heated magnesium sheet and the aluminum sheet at a reduction ratio of 30 to 50%.
In the manufacturing method of the Mg-Zn-based magnesium alloy and aluminum cladding material according to the present invention, the number of times of hot rolling is one or two or more times, and it is maintained for 10 minutes at the same temperature as the initial heating temperature after the pass of every hot rolling. It is characterized by rolling at a reduction ratio of 30 to 50% after.
In addition, the manufacturing method of the Mg-Zn-based magnesium alloy and aluminum cladding material according to the present invention, further comprises a surface treatment step of cleaning the surface before heating the Mg-Zn-based magnesium alloy plate and the aluminum plate.
In addition, in the manufacturing method of the Mg-Zn-based magnesium alloy and aluminum cladding material according to the present invention, the step of maintaining the rolled clad material after hot rolling for 0.5 to 3 hours in the temperature range of 200 ~ 400 for further diffusion heat treatment Include.
Further, in the manufacturing method of Mg-Zn-based magnesium alloy and aluminum cladding material according to the present invention, the aluminum plate is laminated on both sides of the Mg-Zn-based magnesium alloy plate, or the Mg-Zn-based magnesium on both sides of the aluminum plate It is characterized in that the alloy plate is laminated.
In addition, the Mg-Zn-based magnesium alloy and aluminum clad material according to the present invention is produced by the above-described manufacturing method.
According to the present invention having the above configuration, it is possible to secure a healthy magnesium / aluminum clad material and its manufacturing method by using a sheet of Mg-Zn-based magnesium alloy excellent in workability even at low processing temperature, and the manufacturing process is simple The investment cost is reduced, productivity is improved, and manufacturing cost is reduced.
The Mg-Zn-based magnesium alloy / aluminum cladding material enables to reduce the weight of road, aviation, and rail transportation means and can be widely applied as an exterior material for electronic / communication products such as mobile communication, notebook computers, and cameras.
Hereinafter, a method of manufacturing a clad material of Mg-Zn-based magnesium alloy and aluminum and a clad material of Mg-Zn-based magnesium alloy and aluminum produced by the present invention will be described in detail with reference to the accompanying drawings.
1 is a process chart of a cladding material manufacturing method of Mg-Zn-based magnesium alloy and aluminum according to the present invention, as shown in the cladding material manufacturing method of Mg-Zn-based magnesium alloy and aluminum of the present invention is a surface treatment step (111) ), The
Figure 2 is a comparative graph showing the workability of the Mg-Zn-based magnesium alloy, as shown, Mg-Zn-based magnesium alloys show a high formability at a low processing temperature, unlike the Mg-Al-based magnesium alloy, The present invention uses the characteristics of the Mg-Zn-based magnesium alloy to prepare a clad material from the alloy plate material.
Next, the surface-treated Mg-Zn-based magnesium alloy plate and aluminum plate are laminated and heat-treated. (113)
The present invention is characterized in that the Mg-Zn-based magnesium alloy sheet and the aluminum sheet is heated at the same temperature, and the joining rolling conditions that do not cause work hardening are established to ensure workability of magnesium and aluminum cladding. The two plates are laminated and held for 10 minutes at temperatures between 250 and 320.
If the heating temperature exceeds 320, the Mg-Zn phase may dissolve in the Mg-Zn-based magnesium alloy and defects may form in the magnesium plate, and the thickness of the surface oxide layer increases, making it difficult to join, and the melting point of aluminum is about 500. In excess, aluminum sticks to the roll, which makes rolling difficult. In addition, if the load is less than 250, a large load is required for the stretching of the material, which causes the plate to break in subsequent processing steps as in the case of normal temperature joining. Since much load is required for rolling, the effect of heating is small. Therefore, the temperature should be maintained at 250 ~ 320.
Next, as described above, the laminated and heated magnesium plate and the aluminum plate are hot rolled to each other at a reduction ratio of 30 to 50%.
In order to make magnesium alloy and aluminum clad material, the two materials must be joined in a short time with the temperature maintained. In the case of rolling reduction, it is difficult to apply sufficient bonding force at less than 30%, and in general, it is difficult to process the clad material manufactured by processing hardening due to severe deformation of the plate. It is excellent in plastic workability and there is no problem even when rolling at a reduction ratio of 50%. Hot rolling is carried out with a recovery of one to six times.
Next, the rolled clad material is maintained in a temperature range of 200 to 400 for 0.5 to 3 hours to perform heat diffusion treatment. (117)
Hereinafter, preferred embodiments of the present invention will be described in detail.
Example 1
Figure 3 is a schematic diagram of the manufacturing process of the Mg-Zn-based magnesium alloy and aluminum clad according to the present invention, Mg-Zn-based
4 is an optical micrograph showing the thickness change and the bonding degree of each plate according to the lamination order and the number of hot rolling during the manufacture of the clad material of the Mg-Zn-based magnesium alloy plate and the aluminum plate of Example 1 according to the present invention. The Mg-Zn-based
5 is a tensile test graph according to the number of hot rolling times (2 times, 5 times) of the Mg-Zn-based magnesium alloy plate and the aluminum clad material of the embodiment of the present invention, as shown in FIG. It can be seen that the fracture occurs completely at the same time.
[Example 2]
FIG. 6 is an optical micrograph showing the lamination order and the degree of bonding after rolling of the clad material of the Mg-Zn-based magnesium alloy plate and the aluminum plate of Example 2 according to the present invention, wherein the
Table 1 below shows the manufacture of clad material according to the heating temperature and hot rolling conditions in the furnace.
magnesium
Alloy plate
Thickness (mm)
Aluminum plate thickness (mm)
Rolling speed
(rpm)
Rolling condition
Junction
Remarks
(℃)
(%)
As shown in Table 1, when the heating temperature is 330, there is a problem that aluminum is adsorbed on the roll. In addition, when the rolling speed is 15 rpm, the bonding is very poor.
Example 3
7 is an optical micrograph of a microstructure showing the bonding degree of each layer of the clad material prepared by laminating an Mg-Zn-based magnesium alloy plate and an aluminum plate in multiple layers.
1 is a process chart of the clad material manufacturing method of Mg-Zn-based magnesium alloy and aluminum according to the present invention.
Figure 2 is a comparison graph showing the workability of the Mg-Zn-based magnesium alloy.
Figure 3 is a schematic diagram of the manufacturing process of Mg-Zn-based magnesium alloy and aluminum cladding according to the present invention.
Figure 4 is an optical micrograph showing the thickness change and bonding degree of each plate according to the lamination order and the number of hot rolling during the production of the clad material of the Mg-Zn-based magnesium alloy sheet and aluminum plate of Example 1 according to the present invention.
5 is a tensile test graph of the Mg-Zn-based magnesium alloy plate and the aluminum cladding material according to the number of hot rolling (2 times, 5 times) of the Mg-Zn-based magnesium alloy plate and the aluminum cladding material of the embodiment of the present invention.
6 is an optical micrograph showing the lamination order and the degree of bonding after rolling in the preparation of the clad material of the Mg-Zn-based magnesium alloy plate and the aluminum plate of Example 2 of the present invention.
7 is an optical micrograph showing the bonding degree of each layer of the clad material produced by laminating an Mg-Zn-based magnesium alloy plate and an aluminum plate in multiple layers.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090071424A KR20110013791A (en) | 2009-08-03 | 2009-08-03 | Manufacturing method of mg-zn base wrought magnesium alloys / aluminium alloy clad sheet and mg-zn base wrought magnesium alloys / aluminium alloy clad sheet thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020090071424A KR20110013791A (en) | 2009-08-03 | 2009-08-03 | Manufacturing method of mg-zn base wrought magnesium alloys / aluminium alloy clad sheet and mg-zn base wrought magnesium alloys / aluminium alloy clad sheet thereby |
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| Publication Number | Publication Date |
|---|---|
| KR20110013791A true KR20110013791A (en) | 2011-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020090071424A KR20110013791A (en) | 2009-08-03 | 2009-08-03 | Manufacturing method of mg-zn base wrought magnesium alloys / aluminium alloy clad sheet and mg-zn base wrought magnesium alloys / aluminium alloy clad sheet thereby |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101459732B1 (en) * | 2012-12-28 | 2014-11-13 | 주식회사 포스코 | Method for improving surface quality magnesium alloy plate |
| KR101474533B1 (en) * | 2013-10-08 | 2014-12-23 | 한국기계연구원 | Method for manufacturing Al-Mg clad sheet having improved bonding strength at room temperature and the Al-Mg clad sheet thereby |
| KR101506891B1 (en) * | 2013-10-01 | 2015-03-31 | 주식회사 한국클래드텍 | A fabricating of sheet-type Al-Mg-Al hybrid materials and Method for fabricating of it |
| CN105149351A (en) * | 2015-09-16 | 2015-12-16 | 武汉钢铁(集团)公司 | Preparation method and device for metal composite plate |
| KR20170027686A (en) * | 2015-09-02 | 2017-03-10 | 단국대학교 천안캠퍼스 산학협력단 | Method for manufacturing composition controlled thin alloy foil by using electro-forming |
| WO2020019650A1 (en) * | 2018-07-26 | 2020-01-30 | 江苏常铝铝业股份有限公司 | Lightweight high-strength aluminium alloy composite board and preparation method therefor |
| CN111530930A (en) * | 2020-04-30 | 2020-08-14 | 太原科技大学 | Hot rolling preparation method of magnesium-aluminum laminated plate |
| CN114632835A (en) * | 2022-03-11 | 2022-06-17 | 广东省科学院新材料研究所 | Magnesium-aluminum multilayer composite board and preparation method thereof |
-
2009
- 2009-08-03 KR KR1020090071424A patent/KR20110013791A/en not_active Application Discontinuation
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101459732B1 (en) * | 2012-12-28 | 2014-11-13 | 주식회사 포스코 | Method for improving surface quality magnesium alloy plate |
| KR101506891B1 (en) * | 2013-10-01 | 2015-03-31 | 주식회사 한국클래드텍 | A fabricating of sheet-type Al-Mg-Al hybrid materials and Method for fabricating of it |
| KR101474533B1 (en) * | 2013-10-08 | 2014-12-23 | 한국기계연구원 | Method for manufacturing Al-Mg clad sheet having improved bonding strength at room temperature and the Al-Mg clad sheet thereby |
| KR20170027686A (en) * | 2015-09-02 | 2017-03-10 | 단국대학교 천안캠퍼스 산학협력단 | Method for manufacturing composition controlled thin alloy foil by using electro-forming |
| CN105149351A (en) * | 2015-09-16 | 2015-12-16 | 武汉钢铁(集团)公司 | Preparation method and device for metal composite plate |
| WO2020019650A1 (en) * | 2018-07-26 | 2020-01-30 | 江苏常铝铝业股份有限公司 | Lightweight high-strength aluminium alloy composite board and preparation method therefor |
| CN111530930A (en) * | 2020-04-30 | 2020-08-14 | 太原科技大学 | Hot rolling preparation method of magnesium-aluminum laminated plate |
| CN114632835A (en) * | 2022-03-11 | 2022-06-17 | 广东省科学院新材料研究所 | Magnesium-aluminum multilayer composite board and preparation method thereof |
| CN114632835B (en) * | 2022-03-11 | 2024-02-06 | 广东省科学院新材料研究所 | Magnesium-aluminum multilayer composite board and preparation method thereof |
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