CN115595476A - High-thermal-conductivity aluminum alloy for 5G communication equipment and preparation method thereof - Google Patents
High-thermal-conductivity aluminum alloy for 5G communication equipment and preparation method thereof Download PDFInfo
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- CN115595476A CN115595476A CN202211327075.1A CN202211327075A CN115595476A CN 115595476 A CN115595476 A CN 115595476A CN 202211327075 A CN202211327075 A CN 202211327075A CN 115595476 A CN115595476 A CN 115595476A
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000007670 refining Methods 0.000 claims abstract description 36
- 238000007872 degassing Methods 0.000 claims abstract description 30
- 230000032683 aging Effects 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 21
- 238000005266 casting Methods 0.000 claims abstract description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 5
- 238000003723 Smelting Methods 0.000 claims description 18
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 16
- 229910052786 argon Inorganic materials 0.000 claims description 8
- 239000006185 dispersion Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 229910001122 Mischmetal Inorganic materials 0.000 claims description 4
- 229910001278 Sr alloy Inorganic materials 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 230000006837 decompression Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 241001062472 Stokellia anisodon Species 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 1
- 229910021364 Al-Si alloy Inorganic materials 0.000 description 1
- 229910018520 Al—Si Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- -1 industrial Si Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- 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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D7/00—Casting ingots, e.g. from ferrous metals
- B22D7/005—Casting ingots, e.g. from ferrous metals from non-ferrous metals
-
- 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
- C22F1/043—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 silicon as the next major constituent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A high heat conduction aluminum alloy for 5G communication equipment and a preparation method thereof belong to the technical field of aluminum alloy production, and the aluminum alloy comprises the following components in percentage by weight: 3.0 to 5.0 percent of Si; fe:0.5% -0.7%; zn:0.1% -0.2%; sr:0.025-0.035%; b:0.01 to 0.015 percent; total amount of La and Ce: 0.2 to 0.3 percent; less than or equal to 0.01 percent of other impurities, and the balance of aluminum. The preparation method comprises the following steps: preparing materials, heating and melting, controlling temperature and melting, slagging off and refining, melting and stirring, degassing in a furnace, detecting the content of hydrogen and slag, casting and carrying out two-stage artificial aging. The sampling test proves that the aluminum alloy material provided by the invention has good heat-conducting property.
Description
Technical Field
The invention belongs to the technical field of aluminum alloy production, and particularly relates to a high-thermal-conductivity aluminum alloy for 5G communication equipment and a preparation method thereof.
Background
With the progress and rapid development of modern electronic information and manufacturing technology, especially the rapid development of 5G communication products, higher requirements are put forward on the heat dissipation performance of materials, the heat dissipation problem of aluminum alloy structural parts becomes the bottleneck of the development of communication technology, the aluminum alloy materials in the prior art cannot meet the technical application requirements, and a high-heat-conductivity material is urgently needed. The Al-Si alloy has excellent casting performance and heat and electric conductivity. The invention provides a novel Al-Si series die-casting aluminum alloy material which has excellent electric and heat conducting properties through optimization of a material formula and a production process, and has wide market prospects and technical advantages in industries with high requirements on the heat conducting properties of materials, such as the field of new-generation communication technologies.
Disclosure of Invention
The invention provides a high-thermal-conductivity aluminum alloy for 5G communication equipment and a preparation method thereof, which are used for solving the problems in the background art.
The technical problem solved by the invention is realized by adopting the following technical scheme:
a high-thermal-conductivity aluminum alloy for 5G communication equipment comprises the following components in percentage by weight: 3.0 to 5.0 percent of Si; fe:0.5% -0.7%; zn:0.1% -0.2%; sr:0.025-0.035%; b:0.01 to 0.015 percent; total amount of La and Ce: 0.2% -0.3%; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
The preparation method comprises the following steps:
(1) Preparing raw materials according to the proportion for later use;
(2) Heating and melting: firstly, putting an aluminum ingot for remelting into a furnace, heating and smelting, smelting and stirring an aluminum melt, and keeping the temperature for 35-40min;
(3) Controlling temperature and smelting: adding industrial Si, metallic Fe, pure Zn and other raw materials for smelting, and fully stirring a high-temperature melt;
(4) Slagging-off and refining: slagging off ash in the high-temperature aluminum melt, uniformly stirring, performing powder spraying refining twice by adopting a refining agent and high-purity argon dispersion non-chain refining process, slagging off after each refining is finished, and removing scum on the aluminum melt;
(5) Melting and stirring: adding Al-B, al-Sr alloy and La/Ce misch metal, fully stirring aluminum melt, and sampling to analyze chemical components;
(6) Degassing in a furnace: degassing by adopting a high-purity argon dispersion non-chain degassing process, and standing for 25-35min after degassing;
(7) Detecting hydrogen content and slag content: detecting the hydrogen content and the slag content of the aluminum melt by using a decompression solidification device and a K die;
(8) Casting: casting the qualified aluminum melt, performing online degassing and double-layer ceramic filtration in a runner, and automatically stacking ingots after the aluminum alloy is formed;
(9) Two-stage artificial aging: the aluminum alloy artificial aging process is 175 +/-5 ℃, the aging time is 30min, the aluminum alloy is naturally cooled to the normal temperature, then the secondary artificial aging is carried out, the aging process is 150 +/-5 ℃, and the aging time is 30min.
The beneficial effects of the invention are:
according to the invention, by optimizing the proportion of the chemical components of the aluminum alloy, the novel aluminum alloy material with good thermal conductivity is obtained, and the novel aluminum alloy material is particularly suitable for application of structural members with high requirements on thermal conductivity in new technologies such as 5G communication and the like.
Detailed Description
In order to facilitate an understanding of the present invention, a more complete description of the present invention is provided below. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
A high-thermal-conductivity aluminum alloy for 5G communication equipment comprises the following components in percentage by weight: 3.5 percent of Si; fe:0.55 percent; zn:0.15 percent; sr:0.03 percent; b:0.012%; total amount of La and Ce: 0.25 percent; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
The preparation method comprises the following steps:
(1) Preparing raw materials according to the proportion for later use;
(2) Heating and melting: firstly, feeding remelting aluminum ingots into a furnace, heating and smelting, controlling the smelting temperature of an aluminum melt to be 880-890 ℃, stirring the high-temperature aluminum melt for 5-6 minutes, and keeping the temperature for 35-40min;
(3) Controlling temperature and smelting: adding raw materials such as industrial Si, metal Fe, pure Zn and the like for smelting, controlling the smelting temperature of an aluminum melt to be 730-740 ℃, and fully stirring the high-temperature melt;
(4) Slagging-off and refining: slagging off ash in the high-temperature aluminum melt, controlling the temperature of the high-temperature aluminum melt at 730-740 ℃, uniformly stirring, performing powder injection refining twice by adopting a refining agent and high-purity argon dispersion non-chain refining process, refining by using a refining pipe which is 50 porous refining with the inner diameter phi of 5mm, wherein the refining time is 20-30min each time, the injection amount of the refining agent is controlled at 1Kg/min, the pressure is 0.25-0.35MPa, slagging off is performed after each refining is finished, and scum on the aluminum melt is removed;
(5) Melting and stirring: adding Al-B, al-Sr alloy and La/Ce mischmetal, fully stirring aluminum melt, and sampling and analyzing chemical components;
(6) Degassing in a furnace: controlling the temperature of the aluminum melt at 700-720 ℃, degassing by adopting a high-purity argon dispersion non-chain degassing process, wherein a degassing pipe is used for degassing 50 porous pipes with the inner diameter phi of 5mm, the degassing time is 30-40min, the pressure is 0.20-0.45MPa, and standing for 25-35min after degassing;
(7) Detecting hydrogen content and slag content: detecting the hydrogen content and the slag content of the aluminum melt by using a decompression solidification device and a K die, so that the hydrogen content is less than 0.2cc/100gAl, and the slag content is less than or equal to 1/20;
(8) Casting: casting the qualified aluminum melt at the casting temperature of 690-710 ℃, performing online degassing and double-layer ceramic filtration in a runner, and performing automatic ingot stacking after the aluminum alloy is formed;
(9) Two-stage artificial aging: the aluminum alloy artificial aging process is 175 +/-5 ℃, the aging time is 30min, the aluminum alloy is naturally cooled to the normal temperature, and then the second artificial aging process is carried out, wherein the aging process is 150 +/-5 ℃, and the aging time is 30min.
The aluminum alloy produced in the example was sampled and tested for thermal conductivity, and the thermal conductivity was tested according to ASTM E1461-13, ASTM E1269-11 (Reapproved 2018) and GB/T1423-1996 standards. The sample ratio is as follows (chemical composition/%):
the measured thermal conductivity is as follows:
example 2
A high-thermal-conductivity aluminum alloy for 5G communication equipment comprises the following components in percentage by weight: 4.5 percent of Si; fe:0.65 percent; zn:0.15 percent; sr:0.03 percent; b:0.012%; total amount of La and Ce: 0.25 percent; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
The preparation method comprises the following steps:
(1) Preparing raw materials according to the proportion for later use;
(2) Heating and melting: firstly, putting an aluminum ingot for remelting into a furnace, heating and smelting, controlling the smelting temperature of an aluminum melt to be 880-890 ℃, stirring the high-temperature aluminum melt for 5-6 minutes, and keeping the temperature for 35-40 minutes;
(3) Controlling temperature and smelting: adding raw materials such as industrial silicon Si, metal Fe, pure Zn and the like for smelting, controlling the smelting temperature of an aluminum melt to be 730-740 ℃, and fully stirring the high-temperature melt;
(4) Slagging-off and refining: slagging off ash in the high-temperature aluminum melt, controlling the temperature of the high-temperature aluminum melt at 730-740 ℃, uniformly stirring, performing powder injection refining twice by adopting a refining agent and high-purity argon dispersion non-chain refining process, refining by using a refining pipe which is 50 porous refining with the inner diameter phi of 5mm, wherein the refining time is 20-30min each time, the injection amount of the refining agent is controlled at 1Kg/min, the pressure is 0.25-0.35MPa, slagging off is performed after each refining is finished, and scum on the aluminum melt is removed;
(5) Melting and stirring: adding Al-B, al-Sr alloy and La/Ce misch metal, fully stirring aluminum melt, and sampling to analyze chemical components;
(6) Degassing in a furnace: controlling the temperature of the aluminum melt at 700-720 ℃, degassing by adopting a high-purity argon dispersion non-chain degassing process, wherein a degassing pipe is used for degassing 50 porous pipes with the inner diameter phi of 5mm, the degassing time is 30-40min, the pressure is 0.20-0.45MPa, and standing for 25-35min after degassing;
(7) Detecting hydrogen content and slag content: detecting the hydrogen content and the slag content of the aluminum melt by using a decompression solidification device and a K die, so that the hydrogen content is less than 0.2cc/100gAl, and the slag content is less than or equal to 1/20;
(8) Casting: casting the qualified aluminum melt at the casting temperature of 690-710 ℃, performing online degassing and double-layer ceramic filtration in a runner, and performing automatic ingot stacking after the aluminum alloy is formed;
(9) Two-stage artificial aging: the aluminum alloy artificial aging process is 175 +/-5 ℃, the aging time is 30min, the aluminum alloy is naturally cooled to the normal temperature, and then the second artificial aging process is carried out, wherein the aging process is 150 +/-5 ℃, and the aging time is 30min.
The aluminum alloy produced in the example was sampled and tested for thermal conductivity, and the thermal conductivity was tested according to ASTM E1461-13, ASTM E1269-11 (Reapproved 2018) and GB/T1423-1996 standards. The sample proportion is as follows:
the sample ratio is as follows (chemical composition/%):
| test piece number | Si | Fe | Zn | Sr | B | Total amount of La and Ce | Other impurities singles (maximum) |
| 1 | 4.56 | 0.653 | 0.149 | 0.031 | 0.012 | 0.247 | 0.0068 |
| 2 | 4.59 | 0.656 | 0.151 | 0.031 | 0.012 | 0.245 | 0.0069 |
| 3 | 4.42 | 0.652 | 0.148 | 0.030 | 0.012 | 0.250 | 0.0067 |
| 4 | 4.45 | 0.642 | 0.149 | 0.030 | 0.011 | 0.250 | 0.0066 |
| 5 | 4.56 | 0.657 | 0.150 | 0.029 | 0.011 | 0.249 | 0.0065 |
The measured thermal conductivity is as follows:
| test piece number | Thermal conductivity (W/(m.K)) |
| 1 | 203.1 |
| 2 | 204.5 |
| 3 | 205.3 |
| 4 | 206.4 |
| 5 | 204.7 |
The embodiment of the invention mainly illustrates the high-thermal-conductivity aluminum alloy for the 5G communication equipment and the preparation method thereof. While only a limited number of embodiments and features have been described, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms without departing from the spirit or scope thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, and various modifications and alternative arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (4)
1. The high-thermal-conductivity aluminum alloy for the 5G communication equipment is characterized in that the aluminum alloy comprises the following components in percentage by weight: 3.0 to 5.0 percent of Si; fe:0.5% -0.7%; zn:0.1 to 0.2 percent; sr:0.025-0.035%; b:0.01-0.015%; total amount of La and Ce: 0.2% -0.3%; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
2. The high-thermal-conductivity aluminum alloy for 5G communication equipment as claimed in claim 1, wherein the aluminum alloy comprises the following components in percentage by weight: 3.5 percent of Si; fe:0.55 percent; zn:0.15 percent; sr:0.03 percent; b:0.012%; total amount of La and Ce: 0.25 percent; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
3. The high-thermal-conductivity aluminum alloy for 5G communication equipment as claimed in claim 1, wherein the aluminum alloy comprises the following components in percentage by weight: 4.5 percent of Si; fe:0.65 percent; zn:0.15 percent; sr:0.03 percent; b:0.012%; total amount of La and Ce: 0.25 percent; less than or equal to 0.01 percent of other impurities, and the balance of aluminum.
4. The preparation method of the high-thermal-conductivity aluminum alloy for 5G communication equipment, according to claim 1, is characterized by comprising the following steps:
(1) Preparing raw materials according to a ratio for later use;
(2) Heating and melting: firstly, feeding remelting aluminum ingots into a furnace, heating and smelting, controlling the smelting temperature of an aluminum melt to be 880-890 ℃, stirring the high-temperature aluminum melt for 5-6 minutes, and keeping the temperature for 35-40min;
(3) Temperature-controlled smelting: adding raw materials such as industrial Si, metallic Fe, pure Zn and the like to smelt, controlling the smelting temperature of an aluminum melt to be 730-740 ℃, and fully stirring the high-temperature melt;
(4) Slagging-off and refining: slagging off ash in the high-temperature aluminum melt, controlling the temperature of the high-temperature aluminum melt at 730-740 ℃, uniformly stirring, performing powder injection refining twice by adopting a refining agent and high-purity argon dispersion non-chain refining process, refining by using a refining pipe which is 50 porous refining with the inner diameter phi of 5mm, wherein the refining time is 20-30min each time, the injection amount of the refining agent is controlled at 1Kg/min, the pressure is 0.25-0.35MPa, slagging off is performed after each refining is finished, and scum on the aluminum melt is removed;
(5) Melting and stirring: adding Al-B, al-Sr alloy and La/Ce misch metal, fully stirring aluminum melt, and sampling to analyze chemical components;
(6) Degassing in a furnace: controlling the temperature of the aluminum melt at 700-720 ℃, degassing by adopting a high-purity argon dispersion non-chain degassing process, wherein a degassing pipe is used for degassing 50 porous pipes with the inner diameter phi of 5mm, the degassing time is 30-40min, the pressure is 0.20-0.45MPa, and standing for 25-35min after degassing;
(7) Detecting hydrogen content and slag content: detecting the hydrogen content and the slag content of the aluminum melt by using a decompression solidification device and a K die, so that the hydrogen content is less than 0.2cc/100gAl, and the slag content is less than or equal to 1/20;
(8) Casting: casting the qualified aluminum melt at the casting temperature of 690-710 ℃, performing online degassing and double-layer ceramic filtration in a runner, and performing automatic ingot stacking after the aluminum alloy is formed;
(9) Two-stage artificial aging: the aluminum alloy artificial aging process is 175 +/-5 ℃, the aging time is 30min, the aluminum alloy is naturally cooled to the normal temperature, and then the second artificial aging process is carried out, wherein the aging process is 150 +/-5 ℃, and the aging time is 30min.
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| CN111560574A (en) * | 2020-06-04 | 2020-08-21 | 福建祥鑫股份有限公司 | Heat treatment process of high-thermal-conductivity aluminum alloy |
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| CN113293327A (en) * | 2021-05-26 | 2021-08-24 | 重庆慧鼎华创信息科技有限公司 | High-thermal-conductivity die-casting aluminum alloy and preparation method thereof |
| US20210292874A1 (en) * | 2018-08-24 | 2021-09-23 | Samsung Electronics Co., Ltd. | Aluminium alloy for die casting, method for manufacturing same, and die casting method |
| CN113481395A (en) * | 2021-06-28 | 2021-10-08 | 华南理工大学 | Composite treatment method for improving thermal conductivity of cast Al-Si alloy |
-
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- 2022-10-27 CN CN202211327075.1A patent/CN115595476B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435294A (en) * | 2016-09-24 | 2017-02-22 | 清远市顺博铝合金有限公司 | Low-cost high-thermal-conductivity aluminum alloy and preparation method thereof |
| US20210292874A1 (en) * | 2018-08-24 | 2021-09-23 | Samsung Electronics Co., Ltd. | Aluminium alloy for die casting, method for manufacturing same, and die casting method |
| CN110964936A (en) * | 2019-12-16 | 2020-04-07 | 安徽峰创云通数据科技有限公司 | Production process of high-strength corrosion-resistant aluminum alloy for power line hardware |
| CN111560574A (en) * | 2020-06-04 | 2020-08-21 | 福建祥鑫股份有限公司 | Heat treatment process of high-thermal-conductivity aluminum alloy |
| CN111636018A (en) * | 2020-06-04 | 2020-09-08 | 福建祥鑫股份有限公司 | High-thermal-conductivity aluminum alloy and casting method thereof |
| CN113293327A (en) * | 2021-05-26 | 2021-08-24 | 重庆慧鼎华创信息科技有限公司 | High-thermal-conductivity die-casting aluminum alloy and preparation method thereof |
| CN113481395A (en) * | 2021-06-28 | 2021-10-08 | 华南理工大学 | Composite treatment method for improving thermal conductivity of cast Al-Si alloy |
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Denomination of invention: A high thermal conductivity aluminum alloy and its preparation method for 5G communication equipment Effective date of registration: 20231201 Granted publication date: 20230609 Pledgee: Bank of China Limited Chongren sub branch Pledgor: JIANGXI WANTAI ALUMINUM Co.,Ltd. Registration number: Y2023980069086 |
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