CN107502788A - Electrolytic capacitor shell aluminium alloy and preparation method thereof - Google Patents
Electrolytic capacitor shell aluminium alloy and preparation method thereof Download PDFInfo
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- CN107502788A CN107502788A CN201710702833.6A CN201710702833A CN107502788A CN 107502788 A CN107502788 A CN 107502788A CN 201710702833 A CN201710702833 A CN 201710702833A CN 107502788 A CN107502788 A CN 107502788A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 46
- 239000003990 capacitor Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 43
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 42
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000004411 aluminium Substances 0.000 claims abstract description 34
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 3
- 238000000137 annealing Methods 0.000 claims description 25
- 238000002791 soaking Methods 0.000 claims description 24
- 238000005098 hot rolling Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 19
- 238000005097 cold rolling Methods 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000007670 refining Methods 0.000 description 6
- 229910000560 3004 aluminium alloy Inorganic materials 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 229910001334 3003 aluminium alloy Inorganic materials 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007872 degassing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/08—Housing; Encapsulation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Metal Rolling (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to a kind of electrolytic capacitor shell aluminium alloy and preparation method thereof, the component of the mass percent of the aluminium alloy is as follows：Si：0.4% 0.7%, Fe：0.2% 0.7%, Cu：0.05% 0.25%, Mn：1.0% 1.5%, Mg：0.8% 1.3%, Zn：0.1% 0.25%, Ti：0.01% 0.08%, the single content of other impurity is not more than 0.05%, and other impurity add up to ratio to be not more than 0.15%, Al surpluses.In melting and casting, the use ratio of waste material reduces former electrolysis aluminium ingot usage amount, reduces production cost above-mentioned electrolytic capacitor shell aluminium alloy to greatest extent more than 70%.By adjusting the technique in production procedure, above-mentioned electrolytic capacitor shell aluminium alloy is in performance with excellent explosion-proof performance and with punching difficulty is reduced the advantages of.
Description
Technical field
The present invention relates to technical field of aluminum alloy technology, more particularly to a kind of electrolytic capacitor shell aluminium alloy and its preparation
Method.
Background technology
At present in Power capacitor industry electrolytic capacitor aluminum hull using mainly low intensive 3003 aluminium alloy and in
Equicohesive 3004 aluminium alloy, above two aluminium alloy carry out melting life using electrolysis aluminium ingot substantially in melting and casting
Production, production cost is high, is unfavorable for the energy-saving of whole industrial chain.The supply of aluminium comes from ore (primary) and old metal (regeneration)
Two aspects.Although primary bauxite resource reserves are relatively abundanter, because production needs to consume the substantial amounts of energy (ton aluminum consumption
More than 15000kWh), while substantial amounts of carbon emission (as many as ton aluminium 12 tons of carbon dioxide of discharge) is produced, therefore to the consumption of the energy
Destruction with environment is quite surprising.And secondary aluminium production energy resource consumption just corresponds to 5% of primary aluminium or so, CO2 emission
Less than the 1/15 of primary aluminum.
The consumption 30% of global aluminum is above is derive from the developed country such as secondary aluminium, America and Europe close to 70% from again at present
Cast alumin(i)um, China is because primary aluminum radix is big, and electrolytic aluminium yield is also in the rise period, therefore although secondary aluminium yield is constantly quick in recent years
Increase, but the ratio for accounting for whole aluminium consumption is still very low, only 20% or so.
Meanwhile 3003 above-mentioned intensity of aluminum alloy are too low, the explosion-proof performance of capacitor is poor, and although 3004 aluminium alloys have
Explosion-proof performance, but intensity is too high, it is more difficult during punching capacitor case；In order to reduce production cost and energy-saving,
4XXX line aluminium alloys, Al-alloy containing alloy element components such as Si, Fe caused by needing to digest in a large amount of production processes
And the performance issue that other aluminium alloy scraps and 3003,3004 aluminium alloys of solution are run into.
Therefore, it is necessary to design and develop, a kind of tensile strength is high, and explosion-proof performance is good to be made suitable for electrolytic capacitor shell
Aluminium alloy.
The content of the invention
Based on this, it is an object of the invention to provide a kind of tensile strength is high, explosion-proof performance it is good be applied to electrolytic capacitor
The aluminium alloy that shell uses.
Specific technical scheme is as follows：
A kind of electrolytic capacitor shell aluminium alloy, the component of its mass percent are as follows：
Si：0.4%-0.7%, Fe：0.2%-0.7%, Cu：0.05%-0.25%, Mn：1.0%-1.5%, Mg：
0.8%-1.3%, Zn：0.1%-0.25%, Ti：0.01%-0.08%, the single content of other impurity are not more than 0.05%,
Other impurity add up to ratio to be not more than 0.15%, Al surpluses.
It is a further object of the present invention to provide the preparation method of above-mentioned electrolytic capacitor shell aluminium alloy.
The preparation method of above-mentioned electrolytic capacitor shell aluminium alloy, comprises the following steps：
(1) secondary aluminium (aluminium alloy scrap), electrolysis aluminium ingot and aluminium alloy additive are added to by the constituent content molten
In furnace, carry out melting, cast to obtain ingot casting；
(2) surface milling, soaking are carried out to the ingot casting；
(3) ingot casting after soaking is subjected to hot rolling, obtains blank；
(4) blank progress cold rolling, again intermediate annealing, cold rolling or paper tinsel are rolled, obtains finished product；
(5) finished product is annealed, produces the electrolytic capacitor shell aluminium alloy.
In wherein some embodiments, the dosage of the secondary aluminium is more than the total matter of electrolytic capacitor shell aluminium alloy
The 70% of amount.
In wherein some embodiments, the dosage of the secondary aluminium accounts for the electrolytic capacitor shell aluminium alloy gross mass
70~90%.
In wherein some embodiments, the technological parameter of the soaking is：The holding temperature of the ingot casting is 580-600
DEG C, soaking time 10-18h.
In wherein some embodiments, the technological parameter of the hot rolling is：It is 520-560 DEG C to roll initial temperature, rolling
Finishing temperature is 280-330 DEG C, the hot rolled blank for rolling into 4.0-5.0mm thickness of ingot casting.
In wherein some embodiments, the technological parameter of the intermediate annealing is：Holding temperature is controlled at 330-360 DEG C,
Soaking time is 1-4h.
In wherein some embodiments, the technological parameter of the annealing is：Holding temperature is controlled at 190-300 DEG C, insulation
Time is 1-4h.
The electrolytic capacitor aluminium alloy in industry can not digest aluminium alloy scrap (secondary aluminium) at present, and the present invention is for useless
The utilization of material and the critical technological point of production process, develop the electrolytic capacitor aluminium alloy that can consume waste material.
For above-mentioned electrolytic capacitor shell aluminium alloy in melting and casting, the use ratio of waste material, can be most more than 70%
Limits reduce former electrolysis aluminium ingot usage amount, reduce production cost.By adjusting the technique in production procedure so that material
Final performance meets the use standard of product, creates substantial amounts of economic benefit and promotes the energy-saving of whole industry.
Above-mentioned electrolytic capacitor shell aluminium alloy is with excellent explosion-proof performance and difficult with punching is reduced in performance
The advantages of spending.Overcome lacking for the explosion-proof performance that 3003 aluminium alloys do not have and the low punching difficulty that 3004 alloys not having
Point.
Embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding more thorough and comprehensive to the disclosure.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
The arbitrary and all combination of the Listed Items of pass.
Embodiment 1
Chemical composition (WT%) such as following table of a kind of electrolytic capacitor shell aluminium alloy of the present embodiment：
The preparation method of above-mentioned electrolytic capacitor shell aluminium alloy, comprises the following steps：
(1) calculated by mentioned component and get material (secondary aluminium 76%, electrolysis aluminium ingot 23% and aluminium alloy additive ready
1%), add in smelting furnace and melted, through refining, remove the gred, stir, analyze and adjusting component after enter standing furnace, standing,
Refining, degasification, slagging-off, add Al-5Ti-1B silks in aluminium liquid after into casting machine be cast as ingot casting.Milling is carried out to ingot casting surface
Cut.
(2) soaking, 580 DEG C of the holding temperature of ingot casting are carried out to ingot casting, ingot casting soaking time is 17 hours.The open rolling of hot rolling
Thickness control is at 540 DEG C, and for finishing temperature control at 295 DEG C, the thickness of hot rolling blank is 4.1mm.
(3) hot rolling blank is rolled to 0.48mm thickness by cold rolling, carries out intermediate annealing, 330 DEG C of annealing temperature, material insulation
3 hours time.
(4) by cold rolling 0.4mm thickness finished products after annealing, finally protected by finished products, 200 DEG C of annealing temperature, material
Warm 4 hours time, condition of delivery H32.
Embodiment 2
Chemical composition (WT%) such as following table of a kind of electrolytic capacitor shell aluminium alloy of the present embodiment：
The preparation method of above-mentioned electrolytic capacitor shell aluminium alloy, comprises the following steps：
(1) calculated by mentioned component and get material (secondary aluminium 87%, electrolysis aluminium ingot 12.2% and aluminium alloy additive ready
0.8%), add smelting furnace in melted, through refining, remove the gred, stir, analyze and adjusting component after enter standing furnace, it is quiet
Put, refine, degasification, slagging-off, add Al-5Ti-1B silks in aluminium liquid after into casting machine be cast as ingot casting.Ingot casting surface is entered
Row milling.
(2) soaking, 590 DEG C of the holding temperature of ingot casting are carried out to ingot casting, ingot casting soaking time is 16 hours.The open rolling of hot rolling
Temperature control is at 550 DEG C, and for finishing temperature control at 310 DEG C, the thickness of hot rolling blank is 4.5mm.
(3) hot rolling blank is rolled to 0.48mm thickness by cold rolling, carries out intermediate annealing, 350 DEG C of annealing temperature, material insulation
Time 2 h.
(4) by being cold-rolled to 0.4mm thickness finished products after annealing, finally by finished products, 250 DEG C of annealing temperature, material
Soaking time 3 hours, condition of delivery H32.
Embodiment 3
Chemical composition (WT%) such as following table of a kind of electrolytic capacitor shell aluminium alloy of the present embodiment：
The preparation method of above-mentioned electrolytic capacitor shell aluminium alloy, comprises the following steps：
(1) calculated by mentioned component and get material (secondary aluminium 82%, electrolysis aluminium ingot 17.3% and aluminium alloy additive ready
0.7%), add smelting furnace in melted, through refining, remove the gred, stir, analyze and adjusting component after enter standing furnace, it is quiet
Put, refine, degasification, slagging-off, add Al-5Ti-1B silks in aluminium liquid after into casting machine be cast as ingot casting.Ingot casting surface is entered
Row milling.
(2) soaking, 600 DEG C of the holding temperature of ingot casting are carried out to ingot casting, ingot casting soaking time is 15 hours.The open rolling of hot rolling
Temperature control is at 540 DEG C, and for finishing temperature control at 300 DEG C, the thickness of hot rolling blank is 4.8mm.
(3) hot rolling blank is rolled to 0.48mm thickness by cold rolling, carries out intermediate annealing, 360 DEG C of annealing temperature, material insulation
1.5 hours time.
(4) by cold rolling 0.4mm thickness finished products after annealing, finally protected by finished products, 280 DEG C of annealing temperature, material
Warm time 2 h, condition of delivery H32.
3003 aluminium alloy comparative examples 1：
Chemical composition (WT%) such as following table of material：
The preparation method of above-mentioned 3003 aluminium alloy, comprises the following steps：
(1) calculated by mentioned component and get material (electrolysis aluminium ingot 98.2% and aluminium alloy additive 1.8%) ready, added
Melted in smelting furnace, through refining, remove the gred, stir, analyze and adjusting component after enter standing furnace, stand, refine, remove
Gas, slagging-off, it is cast as ingot casting into casting machine after addition Al-5Ti-1B silks in aluminium liquid.Milling is carried out to ingot casting surface.
(2) soaking, 610 DEG C of the holding temperature (#) of ingot casting are carried out to ingot casting, ingot casting soaking time is 14 hours.Hot rolling
Start rolling temperature is controlled at 540 DEG C, and for finishing temperature control at 290 DEG C, the thickness of hot rolling blank is (#) 7.0mm.
(3) hot rolling blank is rolled to 0.54mm thickness by cold rolling, carries out intermediate annealing, 370 DEG C of annealing temperature (#), material
Soaking time 3 hours.
(4) by cold rolling 0.4mm thickness finished products, condition of delivery H14 after annealing.
3004 aluminium alloy comparative examples 2：
Chemical composition (WT%) such as following table of material：
The preparation method of above-mentioned 3004 aluminium alloy, comprises the following steps：
(1) calculated by mentioned component and get material (electrolysis aluminium ingot 97.4% and aluminium alloy additive 2.6%) ready, added
Melted in smelting furnace, through refining, remove the gred, stir, analyze and adjusting component after enter standing furnace, stand, refine, remove
Gas, slagging-off, it is cast as ingot casting into casting machine after addition Al-5Ti-1B silks in aluminium liquid.Milling is carried out to ingot casting surface.
(2) soaking, 605 DEG C of the holding temperature (#) of ingot casting are carried out to ingot casting, ingot casting soaking time is 14 hours.Hot rolling
Start rolling temperature is controlled at 550 DEG C, and for finishing temperature control at 300 DEG C, the thickness of hot rolling blank is (#) 6.5mm.
(3) hot rolling blank is rolled to 0.5mm thickness by cold rolling, carries out intermediate annealing, 330 DEG C of annealing temperature, material insulation
3 hours time.
(4) by cold rolling 0.4mm thickness finished products after annealing, finally by finished products, 180 DEG C of annealing temperature (#), material
Soaking time 4 hours, condition of delivery H32.
Above-mentioned comparative example and embodiment aluminium alloy scrap (secondary aluminium) use ratio and final finished when founding feeds intake
Performance comparison see the table below：
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of electrolytic capacitor shell aluminium alloy, it is characterised in that the component of its mass percent is as follows：
Si：0.4%-0.7%, Fe：0.2%-0.7%, Cu：0.05%-0.25%, Mn：1.0%-1.5%, Mg：0.8%-
1.3%th, Zn：0.1%-0.25%, Ti：0.01%-0.08%, the single content of other impurity are other miscellaneous no more than 0.05%
Matter adds up to ratio to be not more than 0.15%, Al surpluses.
2. the preparation method of the electrolytic capacitor shell aluminium alloy described in claim 1, it is characterised in that including following step
Suddenly：
(1) secondary aluminium, electrolysis aluminium ingot and aluminium alloy additive are added in smelting furnace by the constituent content, progress melting,
Cast to obtain ingot casting；
(2) surface milling, soaking are carried out to the ingot casting；
(3) ingot casting after soaking is subjected to hot rolling, obtains blank；
(4) blank progress cold rolling, again intermediate annealing, cold rolling or paper tinsel are rolled, obtains finished product；
(5) finished product is annealed, produces the electrolytic capacitor shell aluminium alloy.
3. preparation method according to claim 2, it is characterised in that the dosage of the secondary aluminium is more than the electrochemical capacitor
Device shell is with the 70% of aluminium alloy gross mass.
4. preparation method according to claim 2, it is characterised in that the dosage of the secondary aluminium accounts for the electrolytic capacitor
Shell is with the 75~90% of aluminium alloy gross mass.
5. according to the preparation method described in claim any one of 2-4, it is characterised in that the technological parameter of the soaking is：Institute
The holding temperature for stating ingot casting is 580-600 DEG C, soaking time 10-18h.
6. according to the preparation method described in claim any one of 2-4, it is characterised in that the technological parameter of the hot rolling is：Roll
Initial temperature processed is 520-560 DEG C, and rolling finishing temperature is 280-330 DEG C, the hot rolled base for rolling into 4.0-5.0mm thickness of ingot casting
Material.
7. according to the preparation method described in claim any one of 2-4, it is characterised in that the technological parameter of the intermediate annealing
For：Holding temperature control is at 330-360 DEG C, soaking time 1-4h.
8. according to the preparation method described in claim any one of 2-4, it is characterised in that the technological parameter of the annealing is：Protect
Warm temperature control is at 190-300 DEG C, soaking time 1-4h.
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| CN201710702833.6A CN107502788A (en) | 2017-08-16 | 2017-08-16 | Electrolytic capacitor shell aluminium alloy and preparation method thereof |
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| CN201710702833.6A CN107502788A (en) | 2017-08-16 | 2017-08-16 | Electrolytic capacitor shell aluminium alloy and preparation method thereof |
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Family
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300907A (en) * | 2018-02-10 | 2018-07-20 | 沈阳航空航天大学 | A kind of Al-Mn-Si-Mg alloy materials and preparation method thereof |
| CN108754239A (en) * | 2018-05-31 | 2018-11-06 | 乳源东阳光优艾希杰精箔有限公司 | A kind of preparation method of automobile exhaust system heat transmission aluminium alloy |
| CN110016595A (en) * | 2019-04-19 | 2019-07-16 | 乳源东阳光优艾希杰精箔有限公司 | A kind of alloy foil and preparation method thereof |
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| CN101182610A (en) * | 2007-12-07 | 2008-05-21 | 乳源东阳光精箔有限公司 | Aluminium alloy material for louvre window and manufacturing method therefor |
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2017
- 2017-08-16 CN CN201710702833.6A patent/CN107502788A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101182610A (en) * | 2007-12-07 | 2008-05-21 | 乳源东阳光精箔有限公司 | Aluminium alloy material for louvre window and manufacturing method therefor |
Non-Patent Citations (2)
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| 吴生绪等: "《变形铝合金及其模锻成形技术手册》", 31 January 2014, 机械工业出版社 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108300907A (en) * | 2018-02-10 | 2018-07-20 | 沈阳航空航天大学 | A kind of Al-Mn-Si-Mg alloy materials and preparation method thereof |
| CN108754239A (en) * | 2018-05-31 | 2018-11-06 | 乳源东阳光优艾希杰精箔有限公司 | A kind of preparation method of automobile exhaust system heat transmission aluminium alloy |
| CN110016595A (en) * | 2019-04-19 | 2019-07-16 | 乳源东阳光优艾希杰精箔有限公司 | A kind of alloy foil and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |