CN110918647A - Rolling compounding method of magnesium/aluminum composite board - Google Patents
Rolling compounding method of magnesium/aluminum composite board Download PDFInfo
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- CN110918647A CN110918647A CN201911075485.XA CN201911075485A CN110918647A CN 110918647 A CN110918647 A CN 110918647A CN 201911075485 A CN201911075485 A CN 201911075485A CN 110918647 A CN110918647 A CN 110918647A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000013329 compounding Methods 0.000 title claims abstract description 22
- 239000011777 magnesium Substances 0.000 title claims abstract description 21
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 19
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 68
- 229910000861 Mg alloy Inorganic materials 0.000 claims abstract description 37
- 238000000137 annealing Methods 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910001094 6061 aluminium alloy Inorganic materials 0.000 claims description 2
- 229910000553 6063 aluminium alloy Inorganic materials 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000005498 polishing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- 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
- 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
- B21B2001/386—Plates
-
- 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
- B21B2003/001—Aluminium or its alloys
Abstract
A rolling compounding method for a magnesium/aluminum composite plate belongs to the technical field of preparation methods for non-ferrous metal laminated composite plates and can solve the problems that the pressing quantity required by the composite rolling of magnesium alloy and 6 series aluminum alloy is large, the magnesium alloy is easy to crack and the preparation of the composite plate is difficult to realize. The composite board is of a magnesium alloy/aluminum alloy three-layer structure. The prepared laminated plate has good interface bonding, no defect and no pores. The strength reaches 235MPa, and the elongation reaches 6.3%. The preparation method has the advantages of simple process, low cost and high production efficiency, and is an advanced method for preparing the magnesium-aluminum layered composite board.
Description
Technical Field
The invention belongs to the technical field of preparation methods of non-ferrous metal laminated composite plates, and particularly relates to a rolling compounding method of a magnesium/aluminum composite plate.
Background
The magnesium alloy has the advantages of low density, high specific strength, excellent electromagnetic shielding capability, good recyclability and the like, and is widely applied to the fields of automobiles, aviation, aerospace and the like. However, in the practical application of magnesium alloys, the disadvantage of poor corrosion resistance greatly limits the range of applications of magnesium alloys. One effective method for solving the problem of poor corrosion resistance of the magnesium alloy is to cover a layer of other metal materials with good corrosion resistance on the surface of the magnesium alloy to prepare the metal composite plate. Like magnesium alloys, aluminum alloys are also lightweight materials, having excellent corrosion resistance and good formability. By the rolling compounding method, a layer of aluminum alloy with good corrosion resistance can be covered on the surface of the magnesium alloy. The method has simple process and low production cost, and realizes large-scale industrial production.
The aluminum alloy is divided into different grades according to different contents of alloy elements in the aluminum alloy. Wherein the 1 series aluminum alloy is industrial pure aluminum, has low hardness and strong plastic deformation capability, and is most easily compounded with the magnesium alloy. But the strength of the 1 series aluminum alloy is lower, and the application range of the composite plate after the composite is limited. The 6 series aluminum alloy has higher strength and hardness, and the rolling recombination between the 6 series aluminum alloy and the magnesium alloy needs enough rolling reduction to realize metallurgical bonding. However, the magnesium alloy has poor plasticity, cracks are easy to generate under large rolling pressing amount, and the preparation of the composite plate is difficult to realize.
Disclosure of Invention
The invention provides a rolling compounding method of a magnesium/aluminum composite plate, aiming at the problems that the pressing quantity required by the compounding rolling of magnesium alloy and 6 series aluminum alloy is large, the magnesium alloy is easy to crack and the preparation of the composite plate is difficult to realize. And adding a 1 series aluminum alloy plate as an intermediate connecting layer between the magnesium alloy plate and the 6 series aluminum alloy plate, and preparing the Mg/Al/Al composite plate at a lower rolling temperature and a smaller pressing amount. The manufacturing method has simple process and low production cost, can greatly improve the mechanical property of the magnesium alloy plate and expand the application range of the magnesium alloy.
The invention adopts the following technical scheme:
a rolling and compounding method of a magnesium/aluminum composite plate comprises the following steps:
firstly, respectively selecting 6 series aluminum alloy plates with the same length and width and the same thickness of 0.5-1mm, 1 series aluminum alloy plates with the same thickness of 0.2-0.5mm and magnesium alloy plates with the same thickness of 1-2.5 mm;
secondly, respectively putting the 6 series aluminum alloy plate, the magnesium alloy plate and the 1 series aluminum alloy plate into a resistance furnace for annealing treatment, taking the plates out of the annealing furnace after the annealing treatment is finished, and naturally cooling the plates in the air;
thirdly, polishing and cleaning the surfaces of the 6-series aluminum alloy plate, the magnesium alloy plate and the 1-series aluminum alloy plate after annealing treatment respectively to remove an oxidation film and oil stains on the surfaces;
and fourthly, stacking the three plates together according to the sequence of 6 series aluminum alloy plates/1 series aluminum alloy plates/magnesium alloy plates to form a laminated plate blank, preheating the plate blank in a resistance furnace, immediately taking out the plate blank after preheating, and sending the plate blank to a rolling mill for rolling to obtain the magnesium/aluminum composite plate.
The 6-series aluminum alloy plate comprises any one of 6063 aluminum alloy, 6061 aluminum alloy, 6082 aluminum alloy, 6160 aluminum alloy, 6125 aluminum alloy, 6262 aluminum alloy, 6060 aluminum alloy, 6005 aluminum alloy and 6463 aluminum alloy.
The 1-series aluminum alloy sheet material includes any one of 1050 aluminum alloy, 1060 aluminum alloy, 1070 aluminum alloy, and 1035 aluminum alloy.
The magnesium alloy sheet material includes any one of AZ31, AZ61, and AZ 91.
In the second step, the 6 series aluminum alloy plate and the 1 series aluminum alloy plate are respectively annealed for 1-2h under the conditions of 350-450 ℃, and the magnesium alloy plate is annealed for 1-2h under the conditions of 300-400 ℃.
In the fourth step, the preheating temperature is 300-450 ℃, the preheating time is 10-30min, the rolling deformation is 30-40%, and the rolling speed is 10-20 r/min.
The grinding is sand paper grinding, grinding wheel grinding or steel brush grinding. The cleaning refers to washing the surface of the plate by alcohol or acetone.
The invention has the following beneficial effects:
1. the rolling and compounding process of the laminated plate can be carried out under the conditions of lower preheating temperature and smaller pressing amount, and the production cost is low.
2. The preparation method of the invention effectively reduces the fracture tendency of the magnesium alloy plate in the rolling process and improves the material utilization rate.
Drawings
Fig. 1 is a magnesium/aluminum composite panel prepared in example 1 of the present invention;
FIG. 2 is a scanned image of a magnesium/aluminum composite panel prepared in example 1 of the present invention;
fig. 3 is a distribution diagram of interface elements of the magnesium/aluminum composite panel prepared in example 1 of the present invention.
Detailed Description
Example 1
Taking an aluminum alloy (6061), an aluminum alloy (1060) and a magnesium alloy (AZ 31) plate with the length of 110mm, the width of 60mm and the thickness of 0.5mm, 0.5mm and 2mm respectively, and putting the plates into a resistance furnace respectively for annealing pretreatment. The annealing temperature of the aluminum alloy (6061) is 350 ℃, and the annealing time is 1 h; the annealing temperature of the aluminum alloy (1060) is 350 ℃, and the annealing time is 1 h; the annealing temperature of the magnesium alloy (AZ 31) is 300 ℃, and the annealing time is 1 h. And after the annealing is finished, taking the plate out of the resistance furnace, and cooling the plate to room temperature in the air. The surfaces of three layered plates of aluminum alloy (6061), aluminum alloy (1060) and magnesium alloy (AZ 31) were polished with 500# sandpaper and then cleaned with alcohol. The three sheets were placed together in the order 6061/1060/AZ31 to form a laminate slab. And (3) putting the plate blank into a resistance furnace, heating to 350 ℃, keeping the temperature for 15min, immediately sending the plate blank into a rolling mill for rolling and compounding, wherein the rolling speed is 10 r/min, and the pressing amount is 30%. The composite board is obtained, the tensile strength is 235MPa, and the elongation is 6.3%. The composite plate obtained in this example is shown in FIG. 1, in which the direction of the arrow is the rolling direction. The interface structure of the composite panel is shown in fig. 2, and it can be seen that the interface between Al (1060) and Mg (AZ 31) is well bonded, free of defects and voids. There is no distinct interface between Al (6061) and Al (1060). Composite plate interface element distribution as shown in fig. 3, it can be seen from the distribution of magnesium at the interface that there is a small range of elemental diffusion between the half layers, but no typical intermediate compound is formed.
Comparative example
Taking an aluminum alloy (6061) plate and a magnesium alloy (AZ 31) plate which are 110mm in length, 60mm in width and 1mm and 2mm in thickness respectively, and respectively putting the plates into a resistance furnace for annealing pretreatment. The annealing temperature of the aluminum alloy (6061) is 350 ℃, and the annealing time is 1 h; the annealing temperature of the magnesium alloy (AZ 31) is 300 ℃, and the annealing time is 1 h. And after the annealing is finished, taking the plate out of the resistance furnace, and cooling the plate to room temperature in the air. The surfaces of two laminated plates of aluminum alloy (6061) and magnesium alloy (AZ 31) are polished by 500# sandpaper and then cleaned by alcohol. The two sheets were placed together in the order 6061/AZ31 to form a laminate blank. And (3) putting the plate blank into a resistance furnace, heating to 350 ℃, keeping the temperature for 15min, immediately sending the plate blank into a rolling mill for rolling and compounding, wherein the rolling speed is 10 r/min, and the pressing amount is 30%. The aluminum plate and the magnesium plate are not compounded after rolling.
Claims (6)
1. A rolling compounding method of a magnesium/aluminum composite plate is characterized by comprising the following steps: the method comprises the following steps:
firstly, respectively selecting 6 series aluminum alloy plates with the same length and width and the same thickness of 0.5-1mm, 1 series aluminum alloy plates with the same thickness of 0.2-0.5mm and magnesium alloy plates with the same thickness of 1-2.5 mm;
secondly, respectively putting the 6 series aluminum alloy plate, the magnesium alloy plate and the 1 series aluminum alloy plate into a resistance furnace for annealing treatment, taking the plates out of the annealing furnace after the annealing treatment is finished, and naturally cooling the plates in the air;
thirdly, polishing and cleaning the surfaces of the 6-series aluminum alloy plate, the magnesium alloy plate and the 1-series aluminum alloy plate after annealing treatment respectively to remove an oxidation film and oil stains on the surfaces;
and fourthly, stacking the three plates together according to the sequence of 6 series aluminum alloy plates/1 series aluminum alloy plates/magnesium alloy plates to form a laminated plate blank, preheating the plate blank in a resistance furnace, immediately taking out the plate blank after preheating, and sending the plate blank to a rolling mill for rolling to obtain the magnesium/aluminum composite plate.
2. The rolling and compounding method of the magnesium/aluminum composite plate according to claim 1, wherein the rolling and compounding method comprises the following steps: the 6-series aluminum alloy plate comprises any one of 6063 aluminum alloy, 6061 aluminum alloy, 6082 aluminum alloy, 6160 aluminum alloy, 6125 aluminum alloy, 6262 aluminum alloy, 6060 aluminum alloy, 6005 aluminum alloy and 6463 aluminum alloy.
3. The rolling and compounding method of the magnesium/aluminum composite plate according to claim 1, wherein the rolling and compounding method comprises the following steps: the 1-series aluminum alloy sheet material includes any one of 1050 aluminum alloy, 1060 aluminum alloy, 1070 aluminum alloy, and 1035 aluminum alloy.
4. The rolling and compounding method of the magnesium/aluminum composite plate according to claim 1, wherein the rolling and compounding method comprises the following steps: the magnesium alloy sheet material includes any one of AZ31, AZ61, and AZ 91.
5. The rolling and compounding method of the magnesium/aluminum composite plate according to claim 1, wherein the rolling and compounding method comprises the following steps: in the second step, the 6 series aluminum alloy plate and the 1 series aluminum alloy plate are respectively annealed for 1-2h under the conditions of 350-450 ℃, and the magnesium alloy plate is annealed for 1-2h under the conditions of 300-400 ℃.
6. The rolling and compounding method of the magnesium/aluminum composite plate according to claim 1, wherein the rolling and compounding method comprises the following steps: in the fourth step, the preheating temperature is 300-450 ℃, the preheating time is 10-30min, the rolling deformation is 30-40%, and the rolling speed is 10-20 r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911075485.XA CN110918647B (en) | 2019-11-06 | 2019-11-06 | Rolling compounding method of magnesium/aluminum composite board |
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| CN201911075485.XA CN110918647B (en) | 2019-11-06 | 2019-11-06 | Rolling compounding method of magnesium/aluminum composite board |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111420990A (en) * | 2020-04-30 | 2020-07-17 | 太原科技大学 | Preparation method of rolled magnesium-aluminum laminated plate prefabricated blank |
| CN111530930A (en) * | 2020-04-30 | 2020-08-14 | 太原科技大学 | Hot rolling preparation method of magnesium-aluminum laminated plate |
| CN111570512A (en) * | 2020-05-21 | 2020-08-25 | 吉林大学 | High-toughness magnesium alloy plate and laminating and rolling preparation method thereof |
| CN112828037A (en) * | 2020-12-21 | 2021-05-25 | 中南大学 | Method for preparing ultrathin aluminum-magnesium layered composite material by low-temperature rolling |
| CN113290048A (en) * | 2021-04-06 | 2021-08-24 | 长沙新材料产业研究院有限公司 | Aluminum/magnesium/aluminum alloy composite material and preparation process thereof |
| CN113319145A (en) * | 2021-05-12 | 2021-08-31 | 北京科技大学 | Low-cost and high-efficiency preparation method of steel/magnesium laminated composite plate strip |
| CN113732059A (en) * | 2021-09-15 | 2021-12-03 | 广东省科学院新材料研究所 | Magnesium-aluminum composite board and preparation method thereof |
| CN114292995A (en) * | 2021-12-01 | 2022-04-08 | 长沙新材料产业研究院有限公司 | Aluminum-magnesium composite board and preparation method thereof |
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| CN111420990A (en) * | 2020-04-30 | 2020-07-17 | 太原科技大学 | Preparation method of rolled magnesium-aluminum laminated plate prefabricated blank |
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| CN112828037A (en) * | 2020-12-21 | 2021-05-25 | 中南大学 | Method for preparing ultrathin aluminum-magnesium layered composite material by low-temperature rolling |
| CN112828037B (en) * | 2020-12-21 | 2022-06-10 | 中南大学 | Method for preparing ultrathin aluminum-magnesium layered composite material by low-temperature rolling |
| CN113290048A (en) * | 2021-04-06 | 2021-08-24 | 长沙新材料产业研究院有限公司 | Aluminum/magnesium/aluminum alloy composite material and preparation process thereof |
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| CN113319145A (en) * | 2021-05-12 | 2021-08-31 | 北京科技大学 | Low-cost and high-efficiency preparation method of steel/magnesium laminated composite plate strip |
| CN113319145B (en) * | 2021-05-12 | 2022-06-17 | 北京科技大学 | Preparation method of steel/magnesium laminated composite plate strip |
| CN113732059A (en) * | 2021-09-15 | 2021-12-03 | 广东省科学院新材料研究所 | Magnesium-aluminum composite board and preparation method thereof |
| CN113732059B (en) * | 2021-09-15 | 2023-12-05 | 广东省科学院新材料研究所 | Magnesium-aluminum composite board and preparation method thereof |
| CN114292995A (en) * | 2021-12-01 | 2022-04-08 | 长沙新材料产业研究院有限公司 | Aluminum-magnesium composite board and preparation method thereof |
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