WO2021251546A1 - 열전도율이 우수한 주조용 알루미늄 합금 - Google Patents
열전도율이 우수한 주조용 알루미늄 합금 Download PDFInfo
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- WO2021251546A1 WO2021251546A1 PCT/KR2020/010259 KR2020010259W WO2021251546A1 WO 2021251546 A1 WO2021251546 A1 WO 2021251546A1 KR 2020010259 W KR2020010259 W KR 2020010259W WO 2021251546 A1 WO2021251546 A1 WO 2021251546A1
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- 238000005266 casting Methods 0.000 title claims abstract description 42
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 32
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000011777 magnesium Substances 0.000 claims abstract description 30
- 239000011572 manganese Substances 0.000 claims abstract description 30
- 239000012535 impurity Substances 0.000 claims abstract description 20
- 239000011651 chromium Substances 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims abstract description 17
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000014509 gene expression Effects 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 9
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 9
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011701 zinc Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 abstract description 8
- 229910045601 alloy Inorganic materials 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 15
- 238000004512 die casting Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- LLQHSBBZNDXTIV-UHFFFAOYSA-N 6-[5-[[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]methyl]-4,5-dihydro-1,2-oxazol-3-yl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC1CC(=NO1)C1=CC2=C(NC(O2)=O)C=C1 LLQHSBBZNDXTIV-UHFFFAOYSA-N 0.000 description 2
- 229910018134 Al-Mg Inorganic materials 0.000 description 2
- 229910018125 Al-Si Inorganic materials 0.000 description 2
- 229910018467 Al—Mg Inorganic materials 0.000 description 2
- 229910018520 Al—Si Inorganic materials 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009716 squeeze casting Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- C22C21/02—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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- 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
Definitions
- the present invention relates to an aluminum alloy that can be applied without limitation to various casting processes (gravity casting, squeeze casting, mold high-speed casting, reaction solid casting), and more particularly, heat contained in mechanisms such as RRU, RRH, MMU, etc. It relates to an aluminum alloy having excellent thermal conductivity that can be used for thin plate casting for the manufacture of sinks and the like.
- a die casting casting method is mainly used for manufacturing a heat sink for various electrical and mechanical products.
- This die casting is a precision casting method that obtains the same casting as the mold by injecting molten metal into a mold that is precisely machined to perfectly match the required casting shape.
- This die-casting method has excellent mechanical properties in addition to the advantage that the dimensions of the obtained casting are accurate, and has the characteristics that mass production is possible.
- an Al-Si-based alloy and an Al-Mg-based alloy having excellent castability are mainly used.
- thermal conductivity is low at 90 ⁇ 140W/mK, so heat dissipation for electricity, electronics and automobiles that require high thermal conductivity of 160W/mK or more The use of parts has been limited.
- Si9 (Sr) As a conventional material used in the manufacture of such a heat sink, Si9 (Sr) may be mentioned, and Si9 (Sr) contains 8 to 9 wt% of Si, 0.5 to 0.7 wt% of Fe, 0.01 to 0.02 wt% of Sr, It has a composition of 0.03 wt% or less of other impurities and the remainder Al.
- the tensile strength of the heat dissipation product manufactured from the above material is 230N/mm 2 , yield strength 120N/mm 2 , elongation 3% and thermal conductivity 150W/mk level. There was a limitation that it could not be effectively applied to the technical area where parts are being concentrated.
- Patent Document 1 Republic of Korea Patent Publication 2013-0083183 (published on July 22, 2013)
- Patent Document 2 Republic of Korea Patent Publication 2013-0083184 (published on July 22, 2013)
- the present invention is for casting with excellent thermal conductivity with more than thin plate casting (0.5T), high thermal conductivity (185 ⁇ 195W/mK) and yield strength (80N/mm 2 ), which can be effectively used for manufacturing equipment such as 5G communication equipment
- An object of the present invention is to provide an aluminum alloy.
- One aspect of the present invention is
- the impurities are selected from copper (Cu): 0.5% or less, manganese (Mn): 0.3% or less, magnesium (Mg): 0.3% or less, chromium (Cr): 0.2% or less, and zinc (Zn): 0.2% or less comprising at least one, and
- the Si + Fe value defined by the above relation 1 is 3.9 to 4.0 wt%.
- the Si/Fe content ratio defined by the above relation 2 is 2.5 to 4.0.
- the impurities In wt%, copper (Cu): 0.1% or less, manganese (Mn): 0.05% or less, magnesium (Mg): 0.05% or less, chromium (Cr): 0.1% or less, and zinc (Zn): 0.1% or less It is preferable to include at least one type.
- the total of the impurities is preferable to limit the total of the impurities to 0.15% by weight or less, more preferably 0.10% by weight or less, and most preferably to limit it to 0.05% by weight or less.
- the [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] content ratio defined by Relation 3 is in the range of 70.0 to 80.0.
- the aluminum alloy of the present invention may have a yield strength of 80 to 90N/mm 2 and a thermal conductivity of 185 to 195W/mK.
- the present invention having the configuration as described above can effectively provide an aluminum alloy for casting that can achieve high thermal conductivity while ensuring high fluidity and enabling thin plate casting.
- the present invention effectively provides an aluminum alloy material that can be cast up to a yield strength of 80 N/mm 2 or more (based on ASTM E8/E8M-16a), a thermal conductivity of 185 to 195 W/mK [based on the laser flash method], and 0.5T of thin plate forming There are advantages to doing.
- Figure 1 (ab) is a product photograph showing the degree of casting defect for the casting manufactured according to an embodiment of the present invention
- Figure 1 (a) is the casting of the present invention (Invention Example 4)
- Figure 1 (b) is a photograph showing a cast product (Comparative Example 2) outside the conditions of the present invention.
- the aluminum alloy for casting having excellent thermal conductivity contains, by weight, silicon (Si): 2.5 to 3.5%, iron (Fe): 0.6 to 1.2%, residual aluminum (Al) and other unavoidable impurities
- the impurities include, copper (Cu): 0.5% or less, manganese (Mn): 0.3% or less, magnesium (Mg): 0.3% or less, chromium (Cr): 0.2% or less, and zinc (Zn): 0.2% or less.
- the present invention appropriately controls the content and content ratio of Si, which can improve the castability of base metal aluminum, and Fe, which is dissolved in an aluminum matrix to obtain a solid solution strengthening effect.
- it is characterized in that the ratio of the total content of the impurity element to the total content of the Si and Fe elements is controlled in a certain range.
- silicon (Si) is added as an alloying element to the base aluminum to improve castability and is an element capable of increasing tensile strength according to a solid solution strengthening effect.
- iron (Fe) has a very low solubility in aluminum at room temperature of 0.052% by weight, and is mostly crystallized as intermetallic compounds such as AlFe after casting. It is an alloying element that can increase and at the same time reduce mold burning when forming an aluminum alloy product by die casting.
- the sum of Si and Fe alloy elements defined by Relation 1 it is preferable to limit the sum of Si and Fe alloy elements defined by Relation 1 to a range of 3.7 wt% or more and 4.1 wt% or less. If the sum of the Si and Fe element content is less than 3.7% by weight, the yield strength does not meet the standard and workability is deteriorated, and the gate, the runner, and the overflow, which are the movement passages of the molten metal in the casting, are not easily separated. and, if it exceeds 4.1 wt%, the thermal conductivity may not meet the target standard.
- the Si + Fe value defined by the above relation 1 is managed in the range of 3.9 wt% or more and 4.0 wt% or less.
- the Si/Fe content ratio defined by the above relation 2 in the range of 2.1 or more and 5.8 or less. If the Si/Fe ratio is less than 2.1, there may be a problem of a decrease in fluidity due to an increase in the Fe content, and if it exceeds 5.8, there may be a problem in that the molten metal is sintered in the mold and continuous operation becomes difficult.
- the Si/Fe content ratio defined by the above relation 2 is managed in a range of 2.5 or more and 4.0 or less.
- the aluminum alloy for casting of the present invention preferably contains the silicon (Si): 2.8 to 3.2%, and iron (Fe): 0.8 to 1.1%.
- the aluminum alloy of the present invention contains aluminum and unavoidable impurities as residual components. Controlling the content of impurities in the present invention greatly affects the heat dissipation characteristics of a casting manufactured using an aluminum alloy, so it is preferable to reduce the content as much as possible.
- the aluminum alloy of the present invention by weight, copper (Cu): 0.5% or less, manganese (Mn): 0.3% or less, magnesium (Mg): 0.3% or less, chromium (Cr): 0.2% or less, and zinc (Zn) ): It may contain 1.5% or less as the total of one or more selected from 0.2% or less.
- the total amount of impurities is preferably limited to 0.15 wt% or less, more preferably 0.10 wt% or less, and most preferably 0.05 wt% or less.
- the content of each impurity addition and the reasons for its limitation will be described.
- copper improves cutting workability but reduces corrosion resistance, and when added, forms a phase with Si and Fe to prevent dislocation movement, so it is preferable to manage the content to 0.5% or less, more preferably to 0.1% or less is to manage
- Manganese as a transition element increases the recrystallization temperature and inhibits grain growth by promoting the formation of fibrous tissue in hot working, so it is preferable to manage the content to 0.3% or less, and more preferably to manage it to 0.05% or less.
- Magnesium is an element that generally combines with Al to form Al 2 Mg 2 phase to increase strength, ductility and corrosion resistance. , More preferably, it is managed to 0.05% or less.
- Chromium prevents stress corrosion cracking and improves corrosion resistance, but reduces thermal conductivity, so its content is preferably controlled to 0.2% or less, and more preferably, to 0.1% or less.
- Zinc increases yield strength but decreases thermal conductivity, so its content is preferably controlled to 0.2% or less, and more preferably, controlled to 0.1% or less. .
- the present invention it is preferable to manage the [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] content ratio defined by the above Relation 3 in a range of more than 2.4 and less than or equal to 80.0. If the value is less than 2.47, there is a problem of a decrease in thermal conductivity due to the impurity content, and if it exceeds 80.0, not only does the thermal conductivity not increase any more, but also the cost, manufacturing process and mass productivity become inefficient due to excessively high-purity material selection. there is a problem to be
- the [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] content ratio defined by the relation 3 above satisfies the range of 70.0 to 80.0.
- the aluminum alloy casting of the present invention having the above-described compositional components may have a yield strength of 80 to 90N/mm 2 and a thermal conductivity of 185 to 195W/mK.
- the yield strength was measured based on the ASTM E8/E8M-16a standard.
- the thermal conductivity was measured based on the laser flash method and NETZSCH LFA Analysis (KS L 1604), and specifically, diameter 12.5 to 12.8 mm. and a specimen having a thickness of 1 to 3 mm were prepared, and measurements were made based on the laser flash method and NETZSCH LFA Analysis (KS L 1604) at a temperature of 25° C. and a humidity of 15% RH.
- the castability of the cast slab was evaluated as "high” when the defective rate was 1% or less, “medium” when the defective rate was 5% or less, and "low” when the defective rate was 10% or less as a result of observation of the casting defect for the cast. did
- Inventive Examples 1-6 in which the aluminum alloy composition ratio satisfies the range of the present invention, it can be confirmed that not only have excellent castability, but also yield strength and thermal conductivity are excellent.
- Inventive Examples 4-6 in which the [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] value is controlled in the range of 70.0 to 80.0, have superior characteristics compared to Inventive Examples 1-3 where the value is not have.
- Comparative Example 1 the Si+Fe value and the Si/Fe content ratio were out of the range of the present invention, and in particular, the yield strength of the cast steel was much lowered and the thermal conductivity was also deteriorated.
- Figure 1 (ab) is a product photograph showing the degree of casting defect for the casting manufactured according to the embodiment of the present invention
- Figure 1 (a) is the casting of the present invention (Invention Example 4)
- Figure 1 (b) ) is a photograph showing a cast product (Comparative Example 2) outside the conditions of the present invention.
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- Engineering & Computer Science (AREA)
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- Organic Chemistry (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Continuous Casting (AREA)
Abstract
Description
주편 No. | 합금 조성(중량%) | 비고 | |||||||||
Si | Fe | Si+Fe | Si/Fe | Cu | Mn | Mg | Cr | Zn | A* | ||
1 | 2.5 | 1.2 | 3.7 | 2.1 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 2.47 | 발명예1 |
2 | 3.0 | 0.9 | 3.9 | 3.3 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 2.60 | 발명예2 |
3 | 3.5 | 0.6 | 4.1 | 5.8 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 2.73 | 발명예3 |
4 | 2.8 | 1.1 | 3.9 | 2.5 | 0.005 | 0.005 | 0.005 | 0.015 | 0.02 | 78.00 | 발명예4 |
5 | 3.0 | 0.95 | 3.95 | 3.2 | 0.005 | 0.005 | 0.005 | 0.015 | 0.02 | 79.00 | 발명예5 |
6 | 3.2 | 0.8 | 4.0 | 4.0 | 0.005 | 0.005 | 0.005 | 0.015 | 0.02 | 80.00 | 발명예6 |
7 | 2.5 | 0.4 | 2.9 | 6.3 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 1.93 | 비교예1 |
8 | 3.0 | 1.6 | 4.5 | 2.0 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 1.76 | 비교예2 |
9 | 3.5 | 3.0 | 6.5 | 1.2 | 0.5 | 0.3 | 0.3 | 0.2 | 0.2 | 1.63 | 비교예3 |
10 | 2.8 | 1.1 | 3.9 | 2.5 | 0.8 | 0.5 | 0.5 | 0.4 | 0.4 | 1.11 | 비교예4 |
11 | 3.0 | 0.95 | 3.95 | 3.2 | 1.0 | 0.7 | 0.7 | 0.6 | 0.6 | 1.27 | 비교예5 |
주편 No. | 항복강도(N/mm 2) | 열전도율(W/mK) | 주조성 | 비고 |
1 | 82 | 185 | 상 | 발명예1 |
2 | 86 | 189 | 상 | 발명예2 |
3 | 88 | 188 | 상 | 발명예3 |
4 | 86 | 190 | 상 | 발명예4 |
5 | 88 | 195 | 상 | 발명예5 |
6 | 85 | 193 | 상 | 발명예6 |
7 | 66 | 172 | 중 | 비교예1 |
8 | 86 | 165 | 하 | 비교예2 |
9 | 90 | 130 | 하 | 비교예3 |
10 | 87 | 153 | 중 | 비교예4 |
11 | 92 | 148 | 하 | 비교예5 |
Claims (8)
- 중량%로, 실리콘(Si): 2.5~3.5%, 철(Fe): 0.6~1.2%, 잔여 알루미늄(Al) 및 기타 불가피한 불순물을 포함하고,상기 불순물은, 구리(Cu): 0.5% 이하, 망간(Mn): 0.3% 이하, 마그네슘(Mg): 0.3% 이하, 크롬(Cr): 0.2% 이하 및 아연(Zn): 0.2%이하 중 선택된 1종 이상을 포함하고, 그리고하기 관계식 1-3을 각각 만족하는 열전도율이 우수한 주조용 알루미늄 합금.[관계식 1]3.7중량%≤ Si+Fe ≤4.1중량%[관계식 2]2.1≤ Si/Fe ≤5.8[관계식 3]2.47≤ [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] ≤ 80.0
- 제 1항에 있어서, 본 발명에서 상기 관계식 1에 의해 정의되는 Si+Fe 값이 3.9~4.0중량%를 만족하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 1항에 있어서, 또한 상기 관계식 2에 의해 정의되는 Si/Fe 함량비가 2.5~4.0을 만족하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 1항에 있어서, 상기 주조용 알루미늄 합금은, 상기 실리콘(Si): 2.8~3.2%, 철(Fe): 0.8~1.1%을 포함하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 1항에 있어서. 상기 불순물은, 중량%로, 구리(Cu): 0.1% 이하, 망간(Mn): 0.05% 이하, 마그네슘(Mg): 0.05% 이하, 크롬(Cr): 0.1% 이하 및 아연(Zn): 0.1%이하 중 선택된 1종 이상을 포함하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 5항에 있어서, 상기 불순물을 그 총합으로 0.05중량%이하로 포함하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 1항에 있어서, 상기 관계식 3에 의해 정의되는 [(Si+Fe)/(Cu+Mn+Mg+Cr+Zn)] 함량비가 70.0~80.0의 범위를 가짐을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
- 제 1항에 있어서, 상기 알루미늄 합금은 항복강도가 80~90N/mm 2이고, 열전도도가 185~195W/mK 범위를 만족하는 것을 특징으로 하는 열전도율이 우수한 주조용 알루미늄 합금.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR10-2020-0069674 | 2020-06-09 | ||
KR1020200069674A KR20210152776A (ko) | 2020-06-09 | 2020-06-09 | 열전도율이 우수한 주조용 알루미늄 합금 |
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WO2021251546A1 true WO2021251546A1 (ko) | 2021-12-16 |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0790450A (ja) * | 1993-09-01 | 1995-04-04 | Furukawa Electric Co Ltd:The | ブレージング用アルミニウム合金フィン材及びアルミニウム合金製熱交換器の製造方法 |
JP2001254135A (ja) * | 2000-03-13 | 2001-09-18 | Ryoka Macs Corp | 電気伝導性および熱伝導性に優れたアルミニウム合金材 |
JP2001316748A (ja) * | 2000-03-02 | 2001-11-16 | Daiki Aluminium Industry Co Ltd | 高熱伝導加圧鋳造用合金と該合金鋳物 |
KR20140069754A (ko) * | 2012-11-29 | 2014-06-10 | 현대자동차주식회사 | 열전도도가 향상된 알루미늄 합금 및 이를 이용한 방열장치 |
US20170298480A1 (en) * | 2016-04-14 | 2017-10-19 | Hyundai Motor Company | High thermal conductivity aluminum alloy |
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KR101418773B1 (ko) | 2012-01-12 | 2014-07-11 | 한국생산기술연구원 | 다이캐스팅용 고열전도도 Al-Zn-Fe-Mg 합금 |
KR101426708B1 (ko) | 2012-01-12 | 2014-08-07 | 한국생산기술연구원 | 다이캐스팅용 고열전도도 Al-Fe-Zn-Si 합금 |
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2020
- 2020-06-09 KR KR1020200069674A patent/KR20210152776A/ko not_active Application Discontinuation
- 2020-08-04 WO PCT/KR2020/010259 patent/WO2021251546A1/ko active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0790450A (ja) * | 1993-09-01 | 1995-04-04 | Furukawa Electric Co Ltd:The | ブレージング用アルミニウム合金フィン材及びアルミニウム合金製熱交換器の製造方法 |
JP2001316748A (ja) * | 2000-03-02 | 2001-11-16 | Daiki Aluminium Industry Co Ltd | 高熱伝導加圧鋳造用合金と該合金鋳物 |
JP2001254135A (ja) * | 2000-03-13 | 2001-09-18 | Ryoka Macs Corp | 電気伝導性および熱伝導性に優れたアルミニウム合金材 |
KR20140069754A (ko) * | 2012-11-29 | 2014-06-10 | 현대자동차주식회사 | 열전도도가 향상된 알루미늄 합금 및 이를 이용한 방열장치 |
US20170298480A1 (en) * | 2016-04-14 | 2017-10-19 | Hyundai Motor Company | High thermal conductivity aluminum alloy |
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