JPH01247550A - High strength aluminum alloy for die casting - Google Patents
High strength aluminum alloy for die castingInfo
- Publication number
- JPH01247550A JPH01247550A JP7782088A JP7782088A JPH01247550A JP H01247550 A JPH01247550 A JP H01247550A JP 7782088 A JP7782088 A JP 7782088A JP 7782088 A JP7782088 A JP 7782088A JP H01247550 A JPH01247550 A JP H01247550A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- aluminum alloy
- strength
- die casting
- high strength
- 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 19
- 238000004512 die casting Methods 0.000 title claims abstract description 18
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 6
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 17
- 239000000956 alloy Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000006104 solid solution Substances 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 3
- 238000009864 tensile test Methods 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910002482 Cu–Ni Inorganic materials 0.000 description 1
- 229910017870 Cu—Ni—Al Inorganic materials 0.000 description 1
- 101100162020 Mesorhizobium japonicum (strain LMG 29417 / CECT 9101 / MAFF 303099) adc3 gene Proteins 0.000 description 1
- 229910018505 Ni—Mg Inorganic materials 0.000 description 1
- IFLVGRRVGPXYON-UHFFFAOYSA-N adci Chemical compound C12=CC=CC=C2C2(C(=O)N)C3=CC=CC=C3CC1N2 IFLVGRRVGPXYON-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910001325 element alloy Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000879 optical micrograph Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910002059 quaternary alloy Inorganic materials 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、強度の高いダイカスト用アルミニウム合金に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an aluminum alloy for die casting with high strength.
［従来の技術］
ダイカスト法によるアルミニウム合金鋳物は、鋳放しの
ままで良好な寸法精度と、滑らかで美しい鋳肌を有し、
かつ恒産性に優れている為、機械部品やハウジング等に
広く使用されている。[Prior art] Aluminum alloy castings made by die-casting have good dimensional accuracy and a smooth and beautiful casting surface even when as-cast.
Since it also has excellent productivity, it is widely used for machine parts and housings.
従来、ダイカスト用アルミニウム合金としては、Ａｌ−
３ｉ系（Ｊ Ｉｓ、ＡＤＣＩ）、Ａｌ−３１−ＣＬＩ系
（Ｊ Ｉｓ、 ＡＤＣＩＯ１ＡＤＣ１２）、Ａ Ｉ −
３１−Ｍｇ系（Ｊ Ｉｓ、 ＡＤＣ３）、Ａｌ−ＭＣＩ
系（Ｊ Ｉｓ、ＡＤＣ５、ＡＤＣ６）の合金が知られて
いるが、主にはＡ Ｉ −３ｉ −Ｃｕ系合金か使用さ
れている。Conventionally, Al-
3i system (J Is, ADCI), Al-31-CLI system (J Is, ADCIO1ADC12), AI-
31-Mg system (J Is, ADC3), Al-MCI
Although alloys of the JIs, ADC5, and ADC6 systems are known, A I-3i-Cu alloys are mainly used.
近年、需要が増えつつおる高強度部材に、Ａ Ｉ −３
１−Ｃｕ系合金を使用する為には、ダイカスト品の熱処
理（Ｔ６）が必要となる。AI-3 is used for high-strength materials whose demand has been increasing in recent years.
In order to use a 1-Cu alloy, heat treatment (T6) of the die-cast product is required.
通常のダイカスト法は、高速、高圧で溶湯を金型キャビ
ティ内に注入する為に空気を巻き込み、熱処理時に“ふ
くれ″（ブリスター）を生じてしまう。しかし、キャビ
ティ内を酸素で置換してから注湯する方法、所謂無孔性
ダイカスト法（特開昭４８−７３３２７号公報参照）に
よれば、“ふくれパ無しで熱処理が可能でおる。In the conventional die-casting method, air is drawn in because the molten metal is injected into the mold cavity at high speed and high pressure, resulting in "blistering" during heat treatment. However, according to a method in which the inside of the cavity is replaced with oxygen and then poured, the so-called non-porous die casting method (see Japanese Patent Application Laid-Open No. 73327/1983), heat treatment can be performed without any blistering.
［発明が解決しようとする課題］
従来の技術で述べた無孔性タカスト法においては、特殊
な鋳造工程、熱処理工程を必要とする為に、コスト高に
なることや、安定した品質を１琴にくい等の問題点を有
している。[Problems to be solved by the invention] The non-porous Takacast method described in the conventional technology requires special casting and heat treatment processes, which leads to high costs and problems with stable quality. It has problems such as being difficult to use.
本発明は、従来の技術の有するこのような問題点に鑑み
て研究を行なった結果、Ａ Ｉ −Ｃｕ−Ｎｒ−Ｍｇ４
元系及び、この４元系合金にＴｉ、Ｂ、Ｂｅを微量添加
すると高強度のダイカスト用アルミニウム合金が得られ
ることに着目してなされたものであって、その目的とす
るところは、従来のダイカスト用アルミニウム合金の靭
性、延性をさほど損なうことなく、鋳敢しのままで優れ
た強度を有するダカスト用アルミニウム合金を提供しよ
うとするものでおる。The present invention was developed as a result of research conducted in view of such problems of the conventional technology.
It was developed based on the fact that a high-strength aluminum alloy for die casting can be obtained by adding trace amounts of Ti, B, and Be to a quaternary alloy. The object of the present invention is to provide an aluminum alloy for die casting that has excellent strength as cast without significantly impairing the toughness and ductility of the aluminum alloy for die casting.
［課題を解決する為の手段］
上記目的を達成する為に、本発明における高強度ダイカ
スト用アルミニウム合金は、Ｃｕ２〜１０ｗｔ％と、Ｎ
ｉ３〜ｉ ｏｗｔ％と、ｌＶｔｇ１〜７ｗｔ％を含み、
残部がＡｌ及び不可避的不純物からなるものである。[Means for Solving the Problem] In order to achieve the above object, the high-strength die-casting aluminum alloy of the present invention contains 2 to 10 wt% of Cu and N.
Including i3~i owt% and lVtg1~7wt%,
The remainder consists of Al and inevitable impurities.
そして、上記高強度ダイカスト用アルミニウム合金は、
Ｃｕ２〜１０ｗｔ％と、Ｎ ｉ ３〜１０ｗｔ％と、Ｍ
ＱＩ〜７ｗｔ％と、Ｔ ｉ ０．０１〜０．３ｗｔ％
、Ｂ Ｏ，００１〜０．１ｗｔ％、Ｂｅ Ｏ，００１〜
０．００５ｗｔ％のうち何れが１種以上を含み残部がＡ
ｌ及び不可避的不純物からなることが好ましい。The above-mentioned high-strength die-casting aluminum alloy is
Cu2-10wt%, Ni3-10wt%, M
QI~7wt% and T i 0.01~0.3wt%
, B O,001~0.1wt%, Be O,001~
Which of the 0.005wt% contains one or more species and the remainder is A
1 and unavoidable impurities.
［作 用］
本発明の高強度ダイカスト用アルミニウム合金において
、ＣｕはＡｌ中に固溶し、合金を固溶強化さけると共に
、Ａｌ、Ｎｉと、Ｃｕ−Ｎｉ−Ａｌ金属間化合物（Ｙ化
合物）を形成し、高温強度の向上及び硬さの向上に有効
でおる。[Function] In the high-strength aluminum alloy for die casting of the present invention, Cu dissolves in Al to avoid solid solution strengthening of the alloy, and also strengthens Al, Ni, and the Cu-Ni-Al intermetallic compound (Y compound). It is effective in improving high-temperature strength and hardness.
Ｃｕの含有量が２ｗｔ％以下では、その効果が少なく、
ｉｏｗｔ％を越えると延性が低下する原因となる。When the Cu content is 2 wt% or less, the effect is small,
Exceeding iowt% causes a decrease in ductility.
Ｎｉは、アルミニウムにほとんど固溶せずにＡｌと共に
Ａｌ３Ｎｉを又、Ａｌ、Ｃｕと共にＹ化合物（Ｃｕ−Ｎ
ｉ −Ａ Ｉ ） トイツタ金属間化合物を晶出し、
硬さの向上及び強度の向上にに有効な元素である。Ni hardly forms a solid solution in aluminum and forms Al3Ni with Al, and Y compound (Cu-Ni) with Al and Cu.
i-A I) Crystallize the Toitsuta intermetallic compound,
It is an effective element for improving hardness and strength.
Ｎｉの含有量が３ｗｔ％以下では、十分な強度を得にく
く、ｉｏｗｔ％を越えて添加してもそれ以上の強度の向
上は期待できないばかりか、液相線温度を上昇させ、鋳
造温度を高くする。If the Ni content is less than 3wt%, it is difficult to obtain sufficient strength, and even if it is added in excess of iowt%, not only can no further improvement in strength be expected, but it also increases the liquidus temperature and increases the casting temperature. do.
Ｍｇは、Ａｌ中に固溶し易く、基地を固溶強化し、機械
的強度を向上させるが、含有量が１ｗｔ％以下では、そ
の効果は少なく、又７ｗｔ％を越えて添加してもそれ以
上の機械的性質の向上は望めない。Mg easily forms a solid solution in Al, strengthens the matrix as a solid solution, and improves mechanical strength. However, if the content is less than 1 wt%, the effect is small, and if it is added in an amount exceeding 7 wt%, it will not be effective. Improvement in mechanical properties beyond the above cannot be expected.
Ｔ＋、Ｂは、請求項１では添加していないが、請求項２
記載のアルミニウム合金は、請求項１記載のアルミニウ
ム合金にｌｉを単独、或はＶ；、Ｓ複合で微量添加する
。T+ and B are not added in claim 1, but in claim 2
In the aluminum alloy described above, a small amount of li is added to the aluminum alloy according to claim 1, either alone or as a combination of V; and S.
Ｔｉ１或いはＴ；、ｓの添加は、鋳造性の改善、結晶粒
微細化の効果がある。Addition of Ti1, T;, or s has the effect of improving castability and refining crystal grains.
Ｔ ｉ Ｏ，０１ｗｔ％、１３０．００１ｗｔ％以下
では、その効果は少なく、Ｔ ｉ ０．３ｗｔ％、１
３０．１ｗｔ％以上では機械的性質に有害な金属間化合
物を形成する。Below T i O, 0.01 wt%, 130.001 wt%, the effect is small, and T i 0.3 wt%, 1
If the content exceeds 30.1 wt%, intermetallic compounds harmful to mechanical properties are formed.
３ｅは、微量添加することによってＭＣＩの酸化を防止
する役割を果すことは公知であり、ＭＯの添加量が多い
場合、０．００１〜０．００５ｗｔ％の範囲で添加する
ことが望ましい。It is known that 3e plays a role in preventing oxidation of MCI when added in a small amount, and when the amount of MO added is large, it is desirable to add it in a range of 0.001 to 0.005 wt%.
［実施例］ 以下に本発明の実施例及び比較例につき説明する。[Example] Examples and comparative examples of the present invention will be described below.
表−１に示す組成の合金溶湯を９０ｔＯｎダイカストマ
シンを用いて鋳込温度７３０〜７５０’Ｃ，金型温度１
１０〜１５０°Ｃ１射出速度１．３〜１．５ｍ／５ｅＣ
１鋳込圧７６０ｋｇｆ／ｃｉ、チルタイム５秒の条件で
鋳造し、試料Ｎα１〜１４とした。A molten alloy having the composition shown in Table 1 was cast using a 90 ton die casting machine at a temperature of 730 to 750'C and a mold temperature of 1.
10~150°C1 injection speed 1.3~1.5m/5eC
Samples Nα1 to 14 were cast under conditions of a casting pressure of 760 kgf/ci and a chill time of 5 seconds.
他にＪＩＳ規格によるＡＤＣ１０合金を上記と同様の条
件で鋳造し、参考例とした。In addition, ADC10 alloy according to the JIS standard was cast under the same conditions as above and used as a reference example.
以上の試料Ｎα１〜１４及び参考例を用いて下記の実験
を行なった結果を表−２に示す。Table 2 shows the results of the following experiments conducted using the above samples Nα1 to Nα1 to 14 and reference examples.
（１）引張試験
ＡＳＴＭ現格引張試験片形状の試料Ｎα１〜１４及び同
様の参考例を用い、鋳放し状態で引張試験を行なった。(1) Tensile Test A tensile test was conducted in the as-cast state using samples Nα1 to 14 in the form of ASTM current tensile test pieces and similar reference examples.
（２）硬さ試験
６．３５ ＩＭｉｘ ６．３５ ｒｒＩｆｒＩｘｌＯ”
（７）試料Ｎαｌ 〜１４及び同様の参考例を用い、鋳
放し状態のビッカース硬さ（ＨＶ）を測定した。この時
の荷重は２００９である。(2) Hardness test 6.35 IMix 6.35 rrIfrIxlO”
(7) The Vickers hardness (HV) in the as-cast state was measured using Samples Nαl to 14 and similar reference examples. The load at this time is 2009.
（３）衝撃試験
、ＪＩＮａｌ 〜１４及ヒｔＷ例を断ｍカ６．３５ Ｉ
ｎＩｒＩ×（，３５Ｍの試験片とし、鋳放し状態でシャ
ルピー衝撃試験を行なった。(3) Impact test, JINal ~14 and human W example with 6.35 I
A Charpy impact test was conducted on a test piece of nIrI×(, 35M) in an as-cast state.
表−２に示した結果から明らかなように、本発明合金は
、ＪＩＳ ＡＤＣＩＯ合金に比較し、引張強度、耐力
共に高い値を示している。又、破断伸びは、ＪＩＳ
ＡＤＣＩＯと同程度かあるいはそれ以上である。As is clear from the results shown in Table 2, the alloy of the present invention exhibits higher values for both tensile strength and yield strength than the JIS ADCIO alloy. In addition, the elongation at break is JIS
It is about the same level as ADCIO or more.
従って、本発明合金は強度、伸び共に従来の合金に比べ
て優れていることがわかる。Therefore, it can be seen that the alloy of the present invention is superior to conventional alloys in both strength and elongation.
ごッカース硬さ（荷重２００ｃｊ）は、参考例の合金が
）−１ｖ１００以下であるのに対し、本発明の合金はｌ
−１ｖｌｏｏ以上の値を示しており１、このことは、本
発明の合金が耐摩耗性にも優れていることを示す。The Gockers hardness (load 200cj) of the alloy of the reference example is -1v100 or less, whereas the alloy of the present invention has a
-1vloo or more1, which indicates that the alloy of the present invention also has excellent wear resistance.
本発明合金はシャルピー衝撃値は参考例の合金と同程度
か、それ以上であり、靭性においても従来の合金に比べ
て遜色無い。The Charpy impact value of the alloy of the present invention is comparable to or higher than that of the reference example alloy, and the toughness is comparable to that of conventional alloys.
」火千余白
［発明の効果］
以上説明したように本発明によれば、次に記載する効果
を奏する。[Effects of the Invention] As explained above, according to the present invention, the following effects are achieved.
請求項１の高強度ダイカスト用アルミニウム合金におい
ては、Ａ Ｉ −Ｃｕ−Ｎ ｉ −Ｍｇの４元素合金で
必るので、従来のダイカスト用合金と比較して、引張強
度、耐力が高く、延性、靭性についても遜色無く、これ
が為、強度が要求される構造部品に適し、広範囲に利用
することができる。The high-strength aluminum alloy for die casting according to claim 1 is necessarily a four-element alloy of AI-Cu-Ni-Mg, so compared to conventional die casting alloys, it has high tensile strength and yield strength, and has high ductility and It also has comparable toughness, making it suitable for structural parts that require strength and can be used in a wide range of applications.
請求項２の高強度ダイカスト用アルミニウム合金におい
ては、請求項１の合金に、ｒｒ、ｓ、或いはＢｅのうち
少なくとも１種以上を添加したので、請求項１の合金の
効果に加えて、更に結晶粒が微細化し、鋳造性が良く、
かつＢｅの添加によってＭ９の酸化を防止できる。In the high-strength aluminum alloy for die casting according to claim 2, since at least one of rr, s, or Be is added to the alloy according to claim 1, in addition to the effect of the alloy according to claim 1, crystallization is further improved. Fine grains, good castability,
In addition, the addition of Be can prevent oxidation of M9.
添付図面は、本発明に係る高強度ダイカスト用アルミニ
ウム合金で鋳造した表−１、表−２に示す試料Ｎｏ、６
おける拡大倍率１０００倍の光学顕微鏡写真である。The attached drawings show samples No. 6, shown in Tables 1 and 2, cast with the high-strength die-casting aluminum alloy according to the present invention.
This is an optical micrograph at a magnification of 1000 times.
Claims (2)
Ｍｇ１〜７ｗｔ％を含み、残部がＡｌ及び不可避的不純
物からなることを特徴とする高強度ダイカスト用アルミ
ニウム合金。(1) 2 to 10 wt% of Cu and 3 to 10 wt% of Ni,
An aluminum alloy for high-strength die casting, characterized in that it contains 1 to 7 wt% of Mg, with the remainder consisting of Al and inevitable impurities.
Ｍｇ１〜７ｗｔ％と、Ｔｉ０．０１〜０．３ｗｔ％、Ｂ
０．００１〜０．１ｗｔ％、Ｂｅ０．００１〜０．００
５ｗｔ％のうち何れか１種以上を含み、残部がＡｌ及び
不可避的不純物からなることを特徴とする高強度ダカス
ト用アルミニウム合金。(2) Cu2-10wt% and Ni3-10wt%,
Mg1-7wt%, Ti0.01-0.3wt%, B
0.001-0.1wt%, Be0.001-0.00
A high-strength aluminum alloy for dacasting, characterized in that it contains one or more of 5 wt%, and the remainder consists of Al and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7782088A JPH01247550A (en) | 1988-03-29 | 1988-03-29 | High strength aluminum alloy for die casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7782088A JPH01247550A (en) | 1988-03-29 | 1988-03-29 | High strength aluminum alloy for die casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01247550A true JPH01247550A (en) | 1989-10-03 |
Family
ID=13644673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7782088A Pending JPH01247550A (en) | 1988-03-29 | 1988-03-29 | High strength aluminum alloy for die casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01247550A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2036993A1 (en) * | 2006-06-29 | 2009-03-18 | Hitachi Metals Precision, Ltd. | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
| CN107287477A (en) * | 2017-08-18 | 2017-10-24 | 苏州飞伦利斯金属科技有限公司 | A kind of magnalium metal material |
| CN109207813A (en) * | 2017-07-05 | 2019-01-15 | 太仓捷公精密金属材料有限公司 | A kind of magnalium metal material |
| WO2021112155A1 (en) * | 2019-12-04 | 2021-06-10 | ヒノデホールディングス株式会社 | Aluminum alloy for casting and aluminum cast product made using same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259830A (en) * | 1985-05-10 | 1986-11-18 | Showa Alum Corp | Production of wear resistant aluminum alloy extrudate having excellent machineability |
-
1988
- 1988-03-29 JP JP7782088A patent/JPH01247550A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61259830A (en) * | 1985-05-10 | 1986-11-18 | Showa Alum Corp | Production of wear resistant aluminum alloy extrudate having excellent machineability |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2036993A1 (en) * | 2006-06-29 | 2009-03-18 | Hitachi Metals Precision, Ltd. | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
| EP2036993A4 (en) * | 2006-06-29 | 2011-01-26 | Hitachi Metals Ltd | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
| US8292589B2 (en) | 2006-06-29 | 2012-10-23 | Hitachi Metals Precision, Ltd. | Casting aluminum alloy, cast compressor impeller comprising the alloy, and process for producing the same |
| CN109207813A (en) * | 2017-07-05 | 2019-01-15 | 太仓捷公精密金属材料有限公司 | A kind of magnalium metal material |
| CN107287477A (en) * | 2017-08-18 | 2017-10-24 | 苏州飞伦利斯金属科技有限公司 | A kind of magnalium metal material |
| WO2021112155A1 (en) * | 2019-12-04 | 2021-06-10 | ヒノデホールディングス株式会社 | Aluminum alloy for casting and aluminum cast product made using same |
| CN114729425A (en) * | 2019-12-04 | 2022-07-08 | 日之出控股株式会社 | Aluminum alloy for casting and aluminum casting cast using same |
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