JPS62238346A - Aluminum alloy stock for connecting rod for internal combustion engine - Google Patents
Aluminum alloy stock for connecting rod for internal combustion engineInfo
- Publication number
- JPS62238346A JPS62238346A JP7818986A JP7818986A JPS62238346A JP S62238346 A JPS62238346 A JP S62238346A JP 7818986 A JP7818986 A JP 7818986A JP 7818986 A JP7818986 A JP 7818986A JP S62238346 A JPS62238346 A JP S62238346A
- Authority
- JP
- Japan
- Prior art keywords
- connecting rod
- alloy
- strength
- combustion engine
- internal combustion
- 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 14
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 9
- 239000000956 alloy Substances 0.000 claims abstract description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 13
- 150000001875 compounds Chemical class 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000000843 powder Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007712 rapid solidification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009689 gas atomisation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007782 splat cooling Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は高温強度に優れたアルミニウム合金材、特に
内燃機関のコネクティングロッド（コンロッド）用アル
ミニウム合金材に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an aluminum alloy material with excellent high-temperature strength, particularly to an aluminum alloy material for connecting rods of internal combustion engines.
［従来の技術］
内燃機関のコネクティングロッド（コンロッド）は温度
１５０〜２００℃以上の環境で用いられる。したがって
、その材料には高温強度すなわち引張強度、疲労強度、
クリープ強度などが必要とされる。[Prior Art] Connecting rods of internal combustion engines are used in environments with temperatures of 150 to 200° C. or higher. Therefore, the material has high temperature strength, i.e. tensile strength, fatigue strength,
Creep strength etc. are required.
従来高温強度にすぐれたアルミニウム合金としてはＡ
２２１＆、Ａ２６１８などが知られているが、これらの
合金の高温強度は１５０℃以上においては＋汁でない。A conventional aluminum alloy with excellent high-temperature strength
221&, A2618, etc. are known, but the high temperature strength of these alloys is not good at temperatures above 150°C.
このためコンロッド特に自動車やオートバイのコンロッ
ドにはアルミニウム合金は使われず、専ら鉄鋼材料が用
いられている。For this reason, connecting rods, especially connecting rods for automobiles and motorcycles, do not use aluminum alloys, but are instead made of steel.
しかし一方ではコンロッドを軽便化すればエンジンの性
能が大幅に向上するために、コンロッドをアルミ化した
いという要望も大ぎい。On the other hand, however, there is a strong desire to make connecting rods aluminum, as engine performance can be greatly improved if the connecting rods are made lighter.
［発明が解決しようとする問題点］
この発明は、上記要望に応えるため、高温強度にすぐれ
たコンロッド用アルミニウム合金材を提供しようとする
ものである。[Problems to be Solved by the Invention] In order to meet the above-mentioned demands, the present invention seeks to provide an aluminum alloy material for connecting rods that has excellent high-temperature strength.
ｃ問題点を解決するための手段］
上記問題を解決するためのこの発明の構成は、ＦｅｘＳ
〜１５重子％、Ｖ：０．５〜５重量％、ＭＯ：０．５
〜５重量％、７ｒ：０．３〜５重弔％、Ａｌ：残部を主
成分とする合金からなり、合金中に存在する化合物粒子
の平均直径が１μｍ以下、平均粒子間距離が１μｍ以下
でおる内燃機関のコネクティングロッド用アルミニウム
合金材である。c. Means for Solving Problems] The configuration of the present invention for solving the above problems is based on FexS
~15 weight%, V: 0.5-5% by weight, MO: 0.5
-5% by weight, 7r: 0.3-5% by weight, Al: consisting of an alloy with the balance as the main component, the average diameter of the compound particles present in the alloy is 1 μm or less, and the average interparticle distance is 1 μm or less This is an aluminum alloy material for connecting rods of internal combustion engines.
上記合金材の各成分および化合物粒子の作用は下記のと
おりである。The effects of each component of the alloy material and compound particles are as follows.
Ｆｅ：Ｆｅを含む金属間化合物が母相中に分散し、高温
強度を高める（分散強化）。Fe: An intermetallic compound containing Fe is dispersed in the matrix to increase high-temperature strength (dispersion strengthening).
この作用はＦｅが６％より少ない場合には十分でない。This effect is not sufficient when Fe is less than 6%.
他方１５％を越えた場合その効果が飽和するのみでなく
、コンロッド製作時に必要とされる熱間加工性（押出性
、鍛造性）を著しく害する。On the other hand, if it exceeds 15%, not only the effect is saturated, but also the hot workability (extrudability, forgeability) required for manufacturing connecting rods is significantly impaired.
Ｖ：Ｆｅを含む金属間化合物を微細にし、Ｆｅの分散強
化作用を助けて高温強度を高める。この作用は含有量が
０．５％より少ないと１分てへい。他方Ｖが５％を越え
ると熱間加工性が悪くなる。V: Makes the intermetallic compound containing Fe fine and helps the dispersion strengthening effect of Fe to increase high-temperature strength. This effect lasts for 1 minute when the content is less than 0.5%. On the other hand, if V exceeds 5%, hot workability deteriorates.
Ｍｏ：Ｆｅを含む金属間化合物を微細にし、「ｅの分散
強化作用を助りて高温強度を高める。この作用は含有量
が０．５％より少ないと十分でない。一方含有四が５％
を越えると熱間加工性が悪くなる。Mo: Makes the intermetallic compound containing Fe fine and increases the high-temperature strength by assisting the dispersion strengthening effect of e.This effect is not sufficient if the content is less than 0.5%.On the other hand, if the content is less than 0.5%, Mo
If it exceeds 100%, hot workability deteriorates.
Ｚｒ：Ｖ、ＭＯとともにＦｅを含む金属間化合物を微細
にし、Ｆｅの分散強化作用を助けて高温強度を高める。Zr: Together with V and MO, it makes the intermetallic compound containing Fe fine and helps the dispersion strengthening effect of Fe to increase high-temperature strength.
この作用は含有量が０．３％より少ないと十分でない。This effect is not sufficient if the content is less than 0.3%.
一方含有措が５％を越えると熱間加工性が悪くなる。On the other hand, if the content exceeds 5%, hot workability deteriorates.
化合物粒子の平均径＝ １μｍ以下と微細であれば高温
強度が十分であるが、１μｍを越えると高温強度が低く
なる。If the average diameter of the compound particles is as fine as 1 μm or less, the high-temperature strength is sufficient, but if it exceeds 1 μm, the high-temperature strength becomes low.
化合物粒子の平均距離： １μｍ以下であれば高温強度
が高いが、１μｍを越えると高温強度が低くなる。Average distance of compound particles: If it is 1 μm or less, high temperature strength is high, but if it exceeds 1 μm, high temperature strength is low.
この発明の合金材を得るためには以下のような製造条件
で行うことが望ましい。In order to obtain the alloy material of the present invention, it is desirable to carry out the production under the following manufacturing conditions.
所定の合金組成のアルミニウム合金を溶解後、急冷凝固
法により粉末、フレークまたはリボン状とする。急冷凝
固法としてはアトマイズ法、ロール法、スプラットクー
リング法などが用いられるが、何れの方法によっても平
均冷却速度は１０３℃／Ｓ以上でおることが望ましい。After melting an aluminum alloy with a predetermined alloy composition, it is made into powder, flakes, or ribbons by a rapid solidification method. As the rapid solidification method, an atomization method, a roll method, a splat cooling method, etc. are used, but it is desirable that the average cooling rate is 103° C./S or more no matter which method is used.
得られた粉末、フレークまたはリボンを真密度の６０〜
８０％程度まで予備圧縮した後容器に封入し、２００〜
５００℃に加熱しながら真空排気を行い、脱ガス処理を
実施する。The resulting powder, flake or ribbon has a true density of 60~
After pre-compressing to about 80%, seal it in a container and store it for 200~
While heating to 500° C., vacuum evacuation is performed to perform degassing treatment.
脱ガス処理が不十分な場合には最終製品にガスに起因す
る欠陥を生ずる。Insufficient degassing will result in gas-related defects in the final product.
脱ガス処理を行ったビレットを３００〜５００°Ｃに加
熱し、押出比４以上で熱間押出を行う。The degassed billet is heated to 300 to 500°C and hot extruded at an extrusion ratio of 4 or more.
押出比が小さい場合には圧着が不十分となり欠陥を生ず
る。得られた押出材を熱間鍛造しコンロッド形状とする
。If the extrusion ratio is small, crimping will be insufficient and defects will occur. The obtained extruded material is hot forged into a connecting rod shape.
上記の押出工程に代って熱間圧縮（ホットプレス）ある
いは熱間静水圧圧縮（ＨＩＰ処理）により成形して素材
として使用ｌノでもＪ：い。また、急冷された粉末、フ
レークまたはリボンをプレス成形した後焼結し、熱間鍛
造用素材としてもよい。Instead of the above-mentioned extrusion process, it may be formed by hot compression (hot press) or hot isostatic pressing (HIP treatment) and used as a material. Alternatively, the quenched powder, flakes, or ribbon may be press-molded and then sintered to be used as a material for hot forging.
以下、実施例によって、この発明を更に具体的に説明す
る。なお、実施例に記載の各成分の含有量はすべて重量
％である。EXAMPLES Hereinafter, the present invention will be explained in more detail with reference to Examples. In addition, all the contents of each component described in the examples are weight %.
［実施例］
第１表に掲げるＮｏ、１〜Ｎｏ、１１の合金を溶製し、
これからＨｅガスアトマイズ法によって粉末を製造した
。アトマイズ時のノズル内径をＮＯ，８の場合１３ｍｍ
、他の場合３゜５１［１ｆｆｌとし、平均粉末粒径を
Ｎｏ、８の場合２００μｍ、その他の場合６０μｍとし
た。[Example] Alloys No. 1 to No. 11 listed in Table 1 were melted,
A powder was produced from this by a He gas atomization method. Nozzle inner diameter during atomization is 13mm for NO.8
, in other cases, it was set to 3°51[1ffl, and the average powder particle size was set to 200 μm in the case of No. 8, and 60 μm in the other cases.
得られた粉末を用いて、予備圧縮（真密度の７０％まで
）→アルミニウム容器封入耐高温真空脱ガス（４００’
Ｃにて）の工程により直径１５０ｍｍのビレットを製作
し、これを４００ ’Ｃにて押出し、直径４０ｍｍの棒
とした。Using the obtained powder, pre-compression (up to 70% of true density) → sealed in an aluminum container and high-temperature vacuum degassing (400'
A billet with a diameter of 150 mm was produced by the step (C), and this was extruded at 400'C to form a rod with a diameter of 40 mm.
他方、Ｎ Ｏ，１２、Ｎ ｏ、 １３の合金については
溶製後連続鋳造により直径１５０ｍｍのインゴットに鋳
造し、これを４００℃にて押出して直径４０ｍｍの棒と
した。ツイテＮＯ，１２、Ｎ ０．１３に： ’） イ
てＴｌ理（Ｎｏ、１２： ５１０℃ｘ２１−１ｒ−＋
湯冷→１７０’ＣＸ１０ＨｒＳＮ０．１３： ５３０
℃Ｘ２）−１ｒ−４冷→２００°Ｃｘ２０Ｈｒ）を行っ
た。On the other hand, the alloys N 0, 12 and N 0, 13 were cast into ingots with a diameter of 150 mm by continuous casting after melting, and extruded at 400° C. to form rods with a diameter of 40 mm. Tweet No. 12, N 0.13: ') Tl logic (No. 12: 510℃x21-1r-+
Hot water cooling → 170'CX10HrSN0.13: 530
℃×2)-1r-4 cooling→200°C×20Hr).
以上の合金棒について透過電子顕微鏡組織を１２察し、
化合物の平均粒子径および粒子間距離を画像解析装置に
より測定した。ここで平均粒子径は化合物の断面積と同
面積を有する円の直径として求めた。The structure of the above alloy rod was observed using a transmission electron microscope.
The average particle diameter and interparticle distance of the compound were measured using an image analyzer. Here, the average particle diameter was determined as the diameter of a circle having the same area as the cross-sectional area of the compound.
次に常温、１５０℃（保持時間１００８ ｒ ）、およ
び２５０℃（保持時間１００Ｈｒ’ ）において引張試
験を行った。Next, tensile tests were conducted at room temperature, 150°C (holding time 1008 r), and 250°C (holding time 100 Hr').
結果は第２表に示す通りでおる。The results are shown in Table 2.
第１表 注、” ＡＡ２２１８ インゴット法による。Table 1 Note: Based on AA2218 ingot method.
’ ２ ＡＡ２６１Ｂ インゴット法による。'2 AA261B By ingot method.
第２表
δ ：伸び（％）
Ｎｏ、１〜７：この発明の合金でおる。平均粒子径、平
均粒子間距離が小ざく、常温〜２５０℃における強度が
大でおる。特にインゴット法による合金（Ｎ Ｏ，１２
＃よびＮｏ、１３）に比較して高温強度が著しく大きい
。Table 2 δ: Elongation (%) No. 1 to 7: Alloys of this invention. The average particle diameter and average interparticle distance are small, and the strength at room temperature to 250°C is high. In particular, alloys produced by the ingot method (NO, 12
The high temperature strength is significantly higher than that of # and No. 13).
Ｎｏ、８：組成はこの発明の徒囲内にあるが、平均粒子
径が１μｍより大きく、強度がこの発明の合金（Ｎｏ、
１〜７）より小ざい。No. 8: The composition is within the scope of this invention, but the average particle size is larger than 1 μm and the strength is higher than that of the alloy of this invention (No.
1 to 7) smaller.
Ｎｏ、９〜１１：成分がこの発明の範囲内になく、常温
〜２５０℃における強度が小ざい。No. 9 to 11: The components are not within the scope of the present invention, and the strength at room temperature to 250° C. is low.
［発明の効果］
以上説明したように、この発明によれば、内燃機関のコ
ネクティングロッドにアルミニウム合金材を用いること
が可能になり、その内燃機関の出力増加、高効率化が可
能である。[Effects of the Invention] As described above, according to the present invention, it becomes possible to use an aluminum alloy material for the connecting rod of an internal combustion engine, and it is possible to increase the output and improve the efficiency of the internal combustion engine.
Claims (1)
０．５〜５重量％、Ｚｒ：０．３〜５重量％、Ａｌ：残
部を主成分とする合金からなり、合金中に存在する化合
物粒子の平均直径が１μｍ以下、平均粒子間距離が１μ
ｍ以下であることを特徴とする内燃機関のコネクティン
グロッド用アルミニウム合金材。Fe: 6-15% by weight, V: 0.5-5% by weight, Mo:
Made of an alloy whose main components are 0.5 to 5% by weight, Zr: 0.3 to 5% by weight, and the balance Al: the average diameter of the compound particles present in the alloy is 1 μm or less, and the average interparticle distance is 1 μm
An aluminum alloy material for a connecting rod of an internal combustion engine, characterized in that the diameter is less than m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7818986A JPS62238346A (en) | 1986-04-07 | 1986-04-07 | Aluminum alloy stock for connecting rod for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7818986A JPS62238346A (en) | 1986-04-07 | 1986-04-07 | Aluminum alloy stock for connecting rod for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62238346A true JPS62238346A (en) | 1987-10-19 |
Family
ID=13655033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7818986A Pending JPS62238346A (en) | 1986-04-07 | 1986-04-07 | Aluminum alloy stock for connecting rod for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62238346A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02217666A (en) * | 1989-02-17 | 1990-08-30 | Honda Motor Co Ltd | Piston ring for internal combustion engine |
| US4992117A (en) * | 1989-03-20 | 1991-02-12 | Sumitomo Light Metal Industries, Ltd. | Heat resistant aluminum alloy excellent in tensile strength, ductility and fatigue strength |
| EP0818548A1 (en) * | 1996-07-10 | 1998-01-14 | Mitsubishi Heavy Industries, Ltd. | Aluminum alloy impeller and manufacturing method of the same |
-
1986
- 1986-04-07 JP JP7818986A patent/JPS62238346A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02217666A (en) * | 1989-02-17 | 1990-08-30 | Honda Motor Co Ltd | Piston ring for internal combustion engine |
| US4992117A (en) * | 1989-03-20 | 1991-02-12 | Sumitomo Light Metal Industries, Ltd. | Heat resistant aluminum alloy excellent in tensile strength, ductility and fatigue strength |
| EP0818548A1 (en) * | 1996-07-10 | 1998-01-14 | Mitsubishi Heavy Industries, Ltd. | Aluminum alloy impeller and manufacturing method of the same |
| US5902546A (en) * | 1996-07-10 | 1999-05-11 | Mitsubishi Heavy Industries, Ltd. | Aluminum alloy impeller and manufacturing method of the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4702885A (en) | Aluminum alloy and method for producing the same | |
| US3037857A (en) | Aluminum-base alloy | |
| JPS62270704A (en) | Production of aluminum alloy solidified by rapid cooling and having improved workability and heat resistance | |
| US4676830A (en) | High strength material produced by consolidation of rapidly solidified aluminum alloy particulates | |
| JPH0234740A (en) | Heat-resistant aluminum alloy material and its manufacture | |
| JPH01319644A (en) | Heat-resistant aluminum alloy material and its manufacture | |
| JPS62238346A (en) | Aluminum alloy stock for connecting rod for internal combustion engine | |
| JPH02247348A (en) | Heat-resistant aluminum alloy having excellent tensile strength, ductility and fatigue resistance | |
| JPS60234936A (en) | Formed material with superior strength at high temperature made of material of aluminum alloy solidified by rapid | |
| JP2790774B2 (en) | High elasticity aluminum alloy with excellent toughness | |
| JPS60125345A (en) | Aluminum alloy having high heat resistance and wear resistance and manufacture thereof | |
| JPS62224602A (en) | Production of sintered aluminum alloy forging | |
| JPH02194142A (en) | Al-base alloy powder for sintering | |
| JP2602893B2 (en) | Aluminum alloy member with high strength and excellent forgeability | |
| JPH0261021A (en) | Heat-resistant and wear-resistant aluminum alloy material and its manufacture | |
| EP0137180B1 (en) | Heat-resisting aluminium alloy | |
| JPH06228697A (en) | Rapidly solidified al alloy excellent in high temperature property | |
| JP2746390B2 (en) | Manufacturing method of aluminum alloy with excellent tensile and fatigue strength | |
| JPS6223952A (en) | Al-fe-ni heat-resisting alloy having high toughness and its production | |
| JPH0261024A (en) | Heat-resistant and wear-resistant aluminum alloy material and its manufacture | |
| JP2584488B2 (en) | Processing method of wear resistant aluminum alloy | |
| JPS6310222B2 (en) | ||
| JPS62185857A (en) | Heat resistant and high strength aluminum alloy | |
| JP2000282161A (en) | Heat resisting aluminum alloy excellent in toughness, and its manufacture | |
| JPH0121856B2 (en) |