CN106929716A - A kind of aluminium alloy and preparation method thereof - Google Patents
A kind of aluminium alloy and preparation method thereof Download PDFInfo
- Publication number
- CN106929716A CN106929716A CN201710142121.3A CN201710142121A CN106929716A CN 106929716 A CN106929716 A CN 106929716A CN 201710142121 A CN201710142121 A CN 201710142121A CN 106929716 A CN106929716 A CN 106929716A
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- ingot casting
- preparation
- preheating
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000005266 casting Methods 0.000 claims abstract description 21
- 238000011282 treatment Methods 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 230000032683 aging Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000000265 homogenisation Methods 0.000 claims abstract description 6
- 239000003595 mist Substances 0.000 claims abstract description 6
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 230000000171 quenching effect Effects 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 13
- 238000007670 refining Methods 0.000 claims description 7
- 206010040844 Skin exfoliation Diseases 0.000 claims description 5
- ZBZJXHCVGLJWFG-UHFFFAOYSA-N trichloromethyl(.) Chemical compound Cl[C](Cl)Cl ZBZJXHCVGLJWFG-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000155 melt Substances 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- 229910052712 strontium Inorganic materials 0.000 abstract description 8
- 229910052725 zinc Inorganic materials 0.000 abstract description 8
- 229910052691 Erbium Inorganic materials 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 229910052748 manganese Inorganic materials 0.000 abstract description 7
- 229910052804 chromium Inorganic materials 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 14
- 229910045601 alloy Inorganic materials 0.000 description 12
- 229910021365 Al-Mg-Si alloy Inorganic materials 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 1
- 229910018467 Al—Mg Inorganic materials 0.000 description 1
- 229910017818 Cu—Mg Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
- C22C21/08—Alloys based on aluminium with magnesium as the next major constituent with silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/047—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of aluminium alloy and preparation method thereof, the present invention by melting sources, stand, refine, stand, skim after, melt obtains ingot casting in the swage for being cast in preheating at 700 DEG C；Ingot casting is again heated to 470 DEG C~490 DEG C after being removed the peel after Homogenization Treatments, quick cooling at 540 DEG C, is incubated 3~4h, ingot casting is put into the pressurizing unit after preheating and is extruded, and extrusion ratio is 40, obtains section bar；Section bar quenching on line or mist are quenched, and 2~8h of artificial aging, obtains aluminium alloy at 180 DEG C.The mass percent of each component is Mg in the aluminium alloy：0.56%~0.64%, Si：0.42%~0.50%, Cu：0.24%~0.26%, Fe：0.20%~0.22%, Mn：0.028%~0.032%, Cr：0.028%~0.032%, Zn：0.028%~0.032%, Er：0.29%~0.31%, Sr：0.29%~0.31%, remaining is Al.Aluminium alloy comprehensive mechanical property of the present invention is superior, is applicable to the structural material as Aluminum alloy for automotive body section bar.
Description
Technical field
The invention belongs to field of alloy material, more particularly to a kind of aluminium alloy and preparation method thereof.
Background technology
Lightweight is broadly considered the important channel of transportation energy-saving and environmental protection.Al-Mg-Si alloy specific strength
High, specific stiffness is high, good welding performance, and recuperability is good, is the light-weighted ideal material of vehicle.The aluminium alloy of existing business 6061
Intensity is higher, and hot-pressed performance is good, with the application prospect as aluminium alloys for auto body.It is high but its elongation percentage is relatively low
Easy to crack in fast impact process, energy absorption performance is poor, it is difficult to meet demand of the transportation to high-performance aluminium alloy section bar.
To meet automobile usage safety performance requirement, it is necessary to further optimize existing Al-Mg-Si alloy composition, make
Alloy has excellent combination property, while hot-pressed property is good.Er and Sr elements to the positive role of aluminium alloy, at present
Majority is and inside and outside there is not yet relevant report in Al-Mg-Si alloy China using both for Al-Mg, Al-Cu-Mg alloy.
The content of the invention
It is an object of the invention to provide a kind of aluminum alloy materials with excellent combination property.
It is still another object of the present invention to provide the preparation method of above-mentioned aluminium alloy.
The present invention is achieved in that a kind of aluminium alloy, and the mass percent of each component is in the aluminium alloy：
Preferably, the mass percent of the aluminium alloy each component is：
The present invention further discloses the preparation method of above-mentioned aluminium alloy, the method is comprised the following steps：
(1) raw material is completely melt at a temperature of 680 DEG C~730 DEG C, stands 10~20min, after refining, stand, skimming,
By melt in the swage being cast at 700 DEG C after preheating, ingot casting is obtained；Wherein, the percent mass proportioning of raw material is：
(2) step (1) gained ingot casting is removed the peel in Homogenization Treatments 12h at 540 DEG C after quick cooling；
(3) ingot casting after peeling treatment in step (2) is heated to 470 DEG C~490 DEG C, is incubated 3~4h, after being put into preheating
Pressurizing unit in extrude, extrusion ratio is 40, obtains section bar；
(4) step (3) gained section bar quenching on line or mist are quenched, 2~8h of artificial aging, obtains aluminium alloy at 180 DEG C.
Preferably, in step (1), the refining is to be refined by carbon trichloride.
Preferably, in step (1), the preheating temperature of the swage is 250 DEG C~300 DEG C.
Preferably, in step (3), the preheating temperature of the pressurizing unit is 430 DEG C~480 DEG C.
The present invention overcomes the deficiencies in the prior art, there is provided a kind of aluminium alloy and preparation method thereof.The present invention is existing normal
Bait and strontium element, and reasonably optimizing alloy constituent element component ratio are added in rule business aldray.Using Er, Sr atom and Al
The Atomic radiuses difference and electronegativity difference of atom, make alloy that a kind of Al is formed in process of settingxEr、AlxSr particles are significantly thin
Change as-cast grain structure.During alloy subsequent extrusion, because a large amount of particles hinder the motion of dislocation and the nail to crystal boundary
Bundle is acted on, and is suppressed recrystal grain and is grown up, and improves material recrystallization temperature, even if deform can also obtain at a higher temperature
Uniform fine grained texture.After through artificial aging, the Al-Mg-Si alloy intensity of single addition Er, Sr atom increases；And answer
Intensity highest when closing addition, tensile strength is about 335MPa after extrusion molding, and elongation percentage is 18.8%, and combination property is far above existing
There is the business Al-Mg-Si alloy without Er, Sr.Additionally, compared with conventional Al-Mg-Si alloy, alloy Si content mistakes of the present invention
It is surplus, it is ensured that the intensity of alloy；Fe, Zn constituent content are relatively low, are conducive to improving the plasticity and toughness of alloy.
Compared to the shortcoming and defect of prior art, the invention has the advantages that：Instant component reasonable mixture ratio,
Processing and manufacturing is easy, operating procedure is simple, element alloyed using Er, Sr, is effectively improved Al-Mg-Si alloy institutional framework, carries
The comprehensive mechanical property of high alloy, is applicable to the structural material as Aluminum alloy for automotive body section bar.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
(1) raw material is completely melt at a temperature of 680 DEG C~730 DEG C, stands 10~20min, essence is carried out with carbon trichloride
Refining, after standing, skimming, melt is preheated in 250 DEG C~300 DEG C of swage in being cast at 700 DEG C, obtains ingot casting；Wherein,
The composition (Wt%) of raw material is：0.56%Mg, 0.42%Si, 0.24%Cu, 0.20%Fe, 0.028%Mn, 0.028%Cr,
0.028%Zn, 0.29%Er, 0.29%Sr, remaining is Al；
(2) step (1) gained ingot casting is removed the peel in Homogenization Treatments 12h at 540 DEG C after quick cooling；
(3) ingot casting after peeling treatment in step (2) is heated to 470 DEG C~490 DEG C, is incubated 3~4h, by recipient,
Extrusion die and dummy block are preheated to 430 DEG C~480 DEG C and are incubated, and ingot casting is put into the pressurizing unit after preheating and is extruded, and squeeze
Pressure ratio is 40, obtains section bar；
(4) step (3) gained section bar quenching on line or mist are quenched, 2~8h of artificial aging, obtains aluminium alloy at 180 DEG C
1。
Embodiment 2
(1) raw material is completely melt at a temperature of 680 DEG C~730 DEG C, stands 10~20min, essence is carried out with carbon trichloride
Refining, after standing, skimming, melt is preheated in 250 DEG C~300 DEG C of swage in being cast at 700 DEG C, obtains ingot casting；Wherein,
The composition (Wt%) of raw material is：0.64%Mg, 0.50%Si, 0.26%Cu, 0.22%Fe, 0.032%Mn, 0.032%Cr,
0.032%Zn, 0.31%Er, 0.31%Sr remaining be Al；
(2) step (1) gained ingot casting is removed the peel in Homogenization Treatments 12h at 540 DEG C after quick cooling；
(3) ingot casting after peeling treatment in step (2) is heated to 470 DEG C~490 DEG C, is incubated 3~4h, by recipient,
Extrusion die and dummy block are preheated to 430 DEG C~480 DEG C and are incubated, and ingot casting is put into the pressurizing unit after preheating and is extruded, and squeeze
Pressure ratio is 40, obtains section bar；
(4) step (3) gained section bar quenching on line or mist are quenched, 2~8h of artificial aging, obtains aluminium alloy at 180 DEG C
2。
Embodiment 3
(1) raw material is completely melt at a temperature of 680 DEG C~730 DEG C, stands 10~20min, essence is carried out with carbon trichloride
Refining, stands, and reduces oxidized aluminum alloy, and the slag on removal aluminium alloy surface improves alloy purity, by 700 DEG C of melts in protection gas
It is cast under atmosphere and is preheated in 250 DEG C~300 DEG C of swage, obtains ingot casting；Wherein, the composition (Wt%) of raw material is：0.6%
Mg, 0.43%Si, 0.25%Cu, 0.21%Fe, 0.03%Mn, 0.03Cr%, 0.03%Zn, 0.3%Er；0.3%Sr, remaining
It is Al；
(2) step (1) gained ingot casting is removed the peel in Homogenization Treatments 12h at 540 DEG C after quick cooling；
(3) ingot casting after peeling treatment in step (2) is heated to 470 DEG C~490 DEG C, is incubated 3~4h, by recipient,
Extrusion die and dummy block are preheated to 430 DEG C~480 DEG C and are incubated, and ingot casting is put into the pressurizing unit after preheating and is extruded, and squeeze
Pressure ratio is 40, obtains section bar；
(4) step (3) gained section bar quenching on line or mist are quenched, the artificial aging 8h at 180 DEG C obtains aluminium alloy 3.
Comparative example 1
The aluminium alloy 4 that comparative example 1 obtains, its preparation method is essentially identical with content described in embodiment 3, difference
During place is step (1), the composition of raw material is：0.6%Mg, 0.43%Si, 0.25%Cu, 0.21%Fe, 0.03%Mn,
0.03%Cr, 0.03%Zn, remaining is Al.
Comparative example 2
The aluminium alloy 5 that comparative example 2 obtains, its preparation method is essentially identical with content described in embodiment 3, difference
During place is step (1), the composition of raw material is：0.6%Mg, 0.43%Si, 0.18%Cu, 0.21%Fe, 0.03%Mn,
0.03%Cr, 0.03%Zn, 0.3%Er, remaining is Al.
Comparative example 3
The aluminium alloy 6 that comparative example 3 obtains, its preparation method is essentially identical with content described in embodiment 3, difference
During place is step (1), the composition of raw material is：0.6%Mg, 0.43%Si, 0.18%Cu, 0.21%Fe, 0.03%Mn,
0.03%Cr, 0.03%Zn, 0.3%Sr, remaining is Al.
Effect example
Four kinds as obtained in above-described embodiment 3, comparative example 1~3 aluminium alloys of the present invention 3~6 are according to GB/T228-
2000 carry out Mechanics Performance Testing, the results are shown in Table 1：
Mechanical property after 1 four kinds of alloy artificial aging 8h of table
As shown in Table 1, the Al-Mg-Si alloy intensity of single addition Er, Sr atom increases；And in aluminium alloy 3, it is multiple
Intensity highest when closing addition, tensile strength is about 335MPa after extrusion molding, and elongation percentage is 18.8%, and combination property is far above existing
Some business Al-Mg-Si alloys.Crystal grain is significantly refined after this adds alloy mainly due to Er and Sr.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of aluminium alloy, it is characterised in that the mass percent of each component is in the aluminium alloy：
2. aluminium alloy as claimed in claim 1, it is characterised in that the mass percent of the aluminium alloy each component is：
3. the preparation method of the aluminium alloy described in claim 1 or 2, it is characterised in that the method is comprised the following steps：
(1) mass percent of each component described in claim 1 or 2 is matched into raw material, by raw material in 680 DEG C~730 DEG C temperature
Under be completely melt, 10~20min is stood, after refining, stand, skimming, by swage of the melt after preheating is cast at 700 DEG C
In, obtain ingot casting；
(2) step (1) gained ingot casting is removed the peel in Homogenization Treatments 12h at 540 DEG C after quick cooling；
(3) ingot casting after peeling treatment in step (2) is heated to 470 DEG C~490 DEG C, is incubated 3~4h, be put into squeezing after preheating
Extruded in pressure device, extrusion ratio is 40, obtains section bar；
(4) step (3) gained section bar quenching on line or mist are quenched, 2~8h of artificial aging, obtains aluminium alloy at 180 DEG C.
4. the preparation method of aluminium alloy as claimed in claim 3, it is characterised in that in step (1), the refining is to pass through
Carbon trichloride is refined.
5. the preparation method of aluminium alloy as claimed in claim 4, it is characterised in that in step (1), the preheating of the swage
Temperature is 250 DEG C~300 DEG C.
6. the preparation method of aluminium alloy as claimed in claim 3, it is characterised in that in step (3), the pressurizing unit
Preheating temperature is 430 DEG C~480 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142121.3A CN106929716A (en) | 2017-03-10 | 2017-03-10 | A kind of aluminium alloy and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710142121.3A CN106929716A (en) | 2017-03-10 | 2017-03-10 | A kind of aluminium alloy and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106929716A true CN106929716A (en) | 2017-07-07 |
Family
ID=59432096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710142121.3A Pending CN106929716A (en) | 2017-03-10 | 2017-03-10 | A kind of aluminium alloy and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106929716A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739901A (en) * | 2017-10-31 | 2018-02-27 | 南昌工程学院 | A kind of anti-oxidation wear-resisting Roman chair back hyperextension aluminium alloy support beam and preparation method thereof |
| CN107760162A (en) * | 2017-11-01 | 2018-03-06 | 安徽安凯汽车股份有限公司 | A kind of high-strength anti-corrosion type car battery case |
| CN108015254A (en) * | 2017-11-23 | 2018-05-11 | 哈尔滨工业大学 | The Semi-Solid Thixoforming pressurizing unit and pressing method of wrought aluminium alloy trestle component |
| CN109266885A (en) * | 2018-10-17 | 2019-01-25 | 中国科学院青海盐湖研究所 | One kind is containing 6063 aluminium alloy of strontium and preparation method thereof |
| CN111826558A (en) * | 2020-06-05 | 2020-10-27 | 全球能源互联网研究院有限公司 | A kind of aluminum-magnesium-silicon alloy monofilament and preparation method thereof |
| CN112210699A (en) * | 2019-07-10 | 2021-01-12 | 凯瑟铝制品有限责任公司 | Al-MG-SI alloys exhibiting a combination of strength and energy absorption |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290278A (en) * | 2013-06-07 | 2013-09-11 | 湖南大学 | High-energy-absorptivity aluminum alloy for automobile bodies |
-
2017
- 2017-03-10 CN CN201710142121.3A patent/CN106929716A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103290278A (en) * | 2013-06-07 | 2013-09-11 | 湖南大学 | High-energy-absorptivity aluminum alloy for automobile bodies |
Non-Patent Citations (3)
| Title |
|---|
| 张建新等: "合金元素对6063铝合金组织性能影响的综述", 《材料热处理技术》 * |
| 王立娟等: "《变形铝合金熔炼与铸造》", 30 September 2010, 中南大学出版社 * |
| 黄学锋等: "稀土Er改性6063铝合金铸态微观组织性能研究", 《2010中国材料探讨会论文集》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739901A (en) * | 2017-10-31 | 2018-02-27 | 南昌工程学院 | A kind of anti-oxidation wear-resisting Roman chair back hyperextension aluminium alloy support beam and preparation method thereof |
| CN107760162A (en) * | 2017-11-01 | 2018-03-06 | 安徽安凯汽车股份有限公司 | A kind of high-strength anti-corrosion type car battery case |
| CN108015254A (en) * | 2017-11-23 | 2018-05-11 | 哈尔滨工业大学 | The Semi-Solid Thixoforming pressurizing unit and pressing method of wrought aluminium alloy trestle component |
| CN109266885A (en) * | 2018-10-17 | 2019-01-25 | 中国科学院青海盐湖研究所 | One kind is containing 6063 aluminium alloy of strontium and preparation method thereof |
| CN112210699A (en) * | 2019-07-10 | 2021-01-12 | 凯瑟铝制品有限责任公司 | Al-MG-SI alloys exhibiting a combination of strength and energy absorption |
| CN111826558A (en) * | 2020-06-05 | 2020-10-27 | 全球能源互联网研究院有限公司 | A kind of aluminum-magnesium-silicon alloy monofilament and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106929716A (en) | A kind of aluminium alloy and preparation method thereof | |
| CN111411247B (en) | Composite treatment method for regenerated wrought aluminum alloy melt | |
| CN101855376B (en) | Al-Cu-Li alloy product suitable for aerospace application | |
| CN102766789B (en) | Preparation method of aluminum alloy | |
| CN111926225A (en) | Corrosion-resistant aviation aluminum alloy plate and preparation method thereof | |
| CN103290278B (en) | The high energy absorption capacity aluminium alloy of a kind of body of a motor car | |
| CN108425050A (en) | A kind of high-strength and high ductility aluminium lithium alloy and preparation method thereof | |
| CN101294255A (en) | Aluminum alloy for automobile body panels and manufacturing method thereof | |
| CN104018038A (en) | Aluminium alloy used for automobile anti-collision beam, and manufacturing method for product thereof | |
| CN111101034A (en) | Low-rare-earth high-performance rare earth aluminum alloy and preparation method thereof | |
| CN104195390A (en) | High-strength corrosion-resistant heat-resistant easily-formed Al-Mg alloy | |
| CN109468508B (en) | A kind of aluminum alloy material for electric vehicle power battery tray and preparation method thereof | |
| CN108456812A (en) | A kind of low Sc high-strength and high ductilities high-hardenability aluminium zinc magnesium series alloy and preparation method | |
| CN110079704A (en) | It is a kind of to regenerate wear-resisting wrought aluminium alloy and preparation method thereof | |
| CN108546854A (en) | A kind of die-cast aluminum alloy material and preparation method thereof | |
| CN111763861A (en) | A kind of high-strength heat-resistant rare earth aluminum alloy and preparation method thereof | |
| CN104975214B (en) | High-plasticity magnesium alloy and preparation method thereof | |
| CN108588513A (en) | A kind of modified A356 aluminium alloys and its multiple ageing hot processing method | |
| CN105861892A (en) | Al-Mg-Mn-Er-Zr alloy rolling and stabilizing annealing process | |
| CN112695230A (en) | High-elongation heat-resistant aluminum alloy vehicle part and preparation method thereof | |
| CN109136702A (en) | A kind of wrought magnesium alloy and preparation method thereof of high alumina high calcium content | |
| CN114606414A (en) | High-conductivity regenerated aluminum alloy conductor and preparation method thereof | |
| CN101376937B (en) | Squeeze casting Al-Si-Cu alloy material | |
| CN107675047A (en) | Al-Mg-Si-Cu alloy and preparation method thereof | |
| CN1316536A (en) | Al-alloy material for hub of car and its preparing process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |