JPS6047897B2 - Wear-resistant aluminum alloy - Google Patents
Wear-resistant aluminum alloyInfo
- Publication number
- JPS6047897B2 JPS6047897B2 JP10046081A JP10046081A JPS6047897B2 JP S6047897 B2 JPS6047897 B2 JP S6047897B2 JP 10046081 A JP10046081 A JP 10046081A JP 10046081 A JP10046081 A JP 10046081A JP S6047897 B2 JPS6047897 B2 JP S6047897B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- wear
- alloy
- iron
- aluminum alloy
- 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.)
- Expired
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 229910052742 iron Inorganic materials 0.000 claims description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 description 16
- 239000000956 alloy Substances 0.000 description 16
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910000676 Si alloy Inorganic materials 0.000 description 3
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000006104 solid solution Substances 0.000 description 2
- 229910018563 CuAl2 Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 150000002506 iron compounds Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【発明の詳細な説明】
本発明は耐スカツフイング性に優れた耐摩耗性アルミニ
ウム合金、特に摺動特性、耐スカツフイング性及び耐摩
耗性が要求される内燃機関用シリンダ等に好適な耐摩耗
性アルミニウム合金に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a wear-resistant aluminum alloy with excellent scuffing resistance, particularly a wear-resistant aluminum alloy suitable for internal combustion engine cylinders, etc., which require good sliding properties, scuffing resistance, and wear resistance. It concerns alloys.
内燃機関用シリンダ等に用いられるアルミニウム合金と
しては、耐摩耗性、耐スカツフイング性、変形強さ、低
熱膨脹性などの諸特性が要求される。Aluminum alloys used in internal combustion engine cylinders and the like are required to have various properties such as wear resistance, scuffing resistance, deformation strength, and low thermal expansion.
従来、内燃機関のシリンダ用等のアルミニウム合金とし
ては、過共晶アルミニウム−珪素系合金があるが、この
合金は強度、ピストンリングとのなじみ性及び切削性が
充分といえず、かつシリコン欠落によりかじりを生ずる
等の欠点があり、そのために通常の切削及びホーニング
加工のままでは内燃機関用シリンダ等として使用できな
かつた。Conventionally, hypereutectic aluminum-silicon alloys have been used as aluminum alloys for cylinders of internal combustion engines, but these alloys lack sufficient strength, compatibility with piston rings, and machinability, and due to lack of silicon. It has drawbacks such as galling, and for this reason, it cannot be used as cylinders for internal combustion engines, etc., if it is simply cut and honed.
また、内燃機関用シリンダに好適な耐摩耗性アルミニウ
ム合金として、過共晶アルミニウム−珪素系合金におい
て２〜３０％の鉛を析出点在させたものが提案された（
特公昭４５−４２訝公報）。In addition, a hypereutectic aluminum-silicon alloy in which 2 to 30% lead is precipitated was proposed as a wear-resistant aluminum alloy suitable for internal combustion engine cylinders (
Special Publication No. 45-42).
しかし、この合金はその鋳造時に鉛を均一に分散析出さ
せる点において製造技術上の困難があるし、またその製
造時等における鉛公害のおそれがある等の欠点があつた
。本発明の合金は、従来の過共晶アルミニウム−珪素系
合金における上記の欠点を改良したものであり、摺動特
性、耐スカツフイング性及び耐摩耗性等の諸特性に優れ
ており、内燃機関用シリンダ等の用途に好適なものであ
る。However, this alloy has disadvantages in terms of manufacturing technology in that lead is uniformly dispersed and precipitated during casting, and there is also a risk of lead pollution during manufacturing. The alloy of the present invention has improved the above-mentioned drawbacks of conventional hypereutectic aluminum-silicon alloys, and has excellent properties such as sliding properties, scuffing resistance, and wear resistance, and is suitable for internal combustion engines. It is suitable for applications such as cylinders.
本発明の耐スカツフイング性に優れた耐摩耗性アルミニ
ウム合金は、第一に、珪素１４．０〜２０．０重量％、
銅２．０〜５．０重量％、鉄１．５〜４．０重量％及び
アルミニウム残部よりなるものである。The wear-resistant aluminum alloy with excellent scuffing resistance of the present invention firstly contains 14.0 to 20.0% by weight of silicon,
It consists of 2.0-5.0% by weight of copper, 1.5-4.0% by weight of iron, and the balance aluminum.
また本発明の耐スカツフイング性に優れた耐摩耗性アル
ミニウム合金は、第二に、珪素１４．０〜１２０．１景
％、銅２．０〜５．１景％、鉄１０５〜４．１景％、マ
グネシウム１．０重量％以下及びアルミニウム残部より
なるものである。In addition, the wear-resistant aluminum alloy of the present invention with excellent scuffing resistance is composed of 14.0 to 120.1% silicon, 2.0 to 5.1% copper, and 105 to 4.1% iron. %, less than 1.0% by weight of magnesium and the balance aluminum.
本発明の合金における各成分の作用効果について説明を
すると、珪素は合金の熱膨脹を少なく門し、耐摩耗性を
向上させる作用効果をする。To explain the effects of each component in the alloy of the present invention, silicon has the effect of reducing thermal expansion of the alloy and improving wear resistance.
その珪素含有量が１４．１景％未満になると上記の作用
効果を充分に発揮できなくなるし、２０』重量％を超え
て含有させると鋳造性、切削性が悪くなつているので、
１４．０〜２０．鍾量％の範囲内で含有させる。銅はＣ
ｕＡＩ２を析出せしめて合金の強度及び耐熱性を向上さ
せる作用効果をする。If the silicon content is less than 14.1% by weight, the above effects cannot be fully exhibited, and if the silicon content exceeds 20% by weight, the castability and machinability deteriorate.
14.0-20. It is contained within the range of slag weight%. Copper is C
Precipitates uAI2 to improve the strength and heat resistance of the alloy.
その銅含有量が２．０重量％未満では上記の作用効果を
充分に発揮せしめることができない。また、その含有量
が５．鍾量％を越えるとＣｕＡｌ２の生成量がα−Ａ１
中でのＣｌｌＡｌ２の最大固溶量よりも多くなり、溶湯
の流動性が悪くなり、したがつて鋳造性が悪くなる。そ
のために、銅は２．０〜５．鍾量％含有せしめる。鉄は
合金の初期スカツフイング性を改良する作用効果をする
。If the copper content is less than 2.0% by weight, the above effects cannot be fully exhibited. In addition, its content is 5. When the amount of slag exceeds %, the amount of CuAl2 produced becomes α-A1
The amount of solid solution of CllAl2 in the molten metal becomes larger than the maximum solid solution amount, and the fluidity of the molten metal deteriorates, resulting in poor castability. For that reason, copper is 2.0 to 5. Contains 10% of slag. Iron has the effect of improving the initial scuffing properties of the alloy.
一般に、この種合金を用いた内燃機関のシリンダの良否
を左右する重要な特性の一つは初期耐スカツフイング性
であるが、鉄を１．５〜４．０重量％の範囲内て含有せ
しめることにより、その初期耐スカツフイング性を著し
く改良できたのである。従来、この種合金において溶湯
の流動性の向上、金型に対する焼付性の改良等の目的で
、鉄を１．０重量％以下の範囲内で添加されていたが、
１．０重量％以上を添加した例を見ない。しかるに、鉄
を１．５〜４．０重量％添加することにより耐スカツフ
イング性、特に初期の耐スカツフイング性を著しく向上
できたのであり、これは本発，明（＾いてはじめて知見
されたものである。すなわち、本発明は鉄を１．５〜４
．唾量％添加することを最大の特徴点とするものである
。なお、鉄の含有量が４．鍾量％を超えると、溶湯の温
度上昇等の鋳造上の問題点が生じてくるので、鉄の含有
量！は最高で４．０重量％にとどめるべきものである。
第２発明において添加するマグネシウムは合金の強度を
高める作用をする。しかし、マグネシウムの含有量が１
重量％を越えると合金の耐摩耗性が低下してくるので、
その含有量は最高で１重量！％にとどめるものである。
次に、実施例及ひ比較例及び比較例をあげて本発明をさ
らに詳述する。In general, one of the important characteristics that determines the quality of internal combustion engine cylinders using this type of alloy is initial scuffing resistance, but it is important to include iron in the range of 1.5 to 4.0% by weight. This made it possible to significantly improve its initial scuffing resistance. Conventionally, iron has been added to this type of alloy in an amount of 1.0% by weight or less for the purpose of improving the fluidity of the molten metal and improving the seizure resistance to molds.
I have not seen any examples where 1.0% by weight or more was added. However, by adding 1.5 to 4.0% by weight of iron, the scuffing resistance, especially the initial scuffing resistance, was significantly improved, and this was discovered for the first time in the present invention. In other words, the present invention uses iron in an amount of 1.5 to 4
．． The biggest feature is that it adds % of saliva. In addition, the iron content is 4. If the iron content is exceeded, casting problems such as an increase in the temperature of the molten metal will occur, so the iron content! should be kept at a maximum of 4.0% by weight.
Magnesium added in the second invention has the effect of increasing the strength of the alloy. However, the magnesium content is 1
If the weight percentage is exceeded, the wear resistance of the alloy will decrease.
Its content is up to 1 weight! %.
Next, the present invention will be further explained in detail by giving Examples, Comparative Examples, and Comparative Examples.
これらの例における部及び％は重量基準による。実施例
１
Ｎ−２５％Ｓ１合金叩部を８００〜８５０℃に加熱して
溶解させたものに、銅４．５部及び純アルミニウムイン
ゴット１１．６部を順次に添加して溶解する。Parts and percentages in these examples are by weight. Example 1 4.5 parts of copper and 11.6 parts of pure aluminum ingot are sequentially added to and melted into a N-25% S1 alloy beaten part heated to 800 to 850° C. and 11.6 parts of pure aluminum ingot.
次いで、その溶湯に線状の鉄３．０部を少量ずつ添加し
て溶解させてから、マグネシウムＯ力部を添加溶解した
。その後シリコン初晶微細化のためにホセコ社製微細化
剤を添加した。得られた溶湯をサンプリングして分析を
した結果は表１に示すとおりであつた。上記のようにし
て調製した溶湯を３紛間静置したのち、７８０〜８２０
℃の温度で所定形状に鋳造した。Next, 3.0 parts of linear iron was added little by little to the molten metal and dissolved, and then part of magnesium O was added and dissolved. Thereafter, a refiner made by Joseco Co., Ltd. was added to refine silicon primary crystals. The obtained molten metal was sampled and analyzed, and the results were as shown in Table 1. After allowing the molten metal prepared as described above to stand still for 3 minutes,
It was cast into a predetermined shape at a temperature of °C.
実施例２
マグネシウムを全く添加せずに、そのほかは実施例１の
方法に準じて溶湯を調製し、同様にして鋳造した。Example 2 A molten metal was prepared in accordance with the method of Example 1 except that no magnesium was added, and cast in the same manner.
その溶湯をサンプリングして分析した結果は表１に示す
とおりであつた。比較例１及び２
鉄を使用せずに（比較例１）、又は鉄及びマグネシウム
を使用せずに（比較例２）、そのほかは実施例１に記載
の方法に準じて溶湯を調製し、同様にして鋳造した。The results of sampling and analyzing the molten metal are shown in Table 1. Comparative Examples 1 and 2 Molten metal was prepared according to the method described in Example 1, except without using iron (Comparative Example 1) or without using iron and magnesium (Comparative Example 2), and the same It was then cast.
その溶湯をサンプリングして分析した結果は表１に示す
とおりであつた。本発明合金と市販アルミ合金のそれぞ
れの切期耐スカツフイング性を比較するため、実施例１
及び２ならびに比較例１及び２の各溶湯で鋳造した各試
験片を西原式摩耗試験機を用い、アシキユラー鋳鉄を相
手材として下記の条件で試験したところ、表２に示す結
果が得られた。耐摩耗性試験の条件
回転数・・・・・・８００ｒ′Ｐｍ
周速・・・・・・１．２５Ｔｒｔ．／秒
荷重・・・・・・３．５ｋｇＩＣ７７！
相手材・・・・・・アシキユラー鋳鉄
潤滑油・・・・・・無潤滑
また、実施例１において得られた溶湯を鋳造してニサイ
クルエンジン用シリンダ（三菱重工業株式会社製Ｔｌ５
−ＰＣ型）に加工し、エンジンテストをしたところ、初
期スカツフイングを全くおこさず、従来のクロムメッキ
アルミニウムシリンダと較べて同等の耐摩耗性を示した
。The results of sampling and analyzing the molten metal are shown in Table 1. Example 1 In order to compare the cutting edge scuffing resistance of the present invention alloy and a commercially available aluminum alloy,
Test pieces cast with the molten metals of Comparative Examples 1 and 2 and Comparative Examples 1 and 2 were tested using a Nishihara wear tester under the following conditions using axial cast iron as a mating material, and the results shown in Table 2 were obtained. Wear resistance test conditions Rotation speed: 800 r'Pm Circumferential speed: 1.25 Trt. /Second load...3.5kgIC77! Compatible material: Ascillary cast iron lubricating oil: No lubrication Also, the molten metal obtained in Example 1 was cast to produce a two-cycle engine cylinder (Tl5 manufactured by Mitsubishi Heavy Industries, Ltd.).
-PC type) and engine tests showed that it did not cause any initial scuffing and exhibited wear resistance equivalent to that of conventional chrome-plated aluminum cylinders.
また、実施例１において得られた鋳造合金の顕微鏡組織
は添付の写真に示すとおりであつた。Further, the microscopic structure of the cast alloy obtained in Example 1 was as shown in the attached photograph.
添加写真は実施例１の鋳造合金の組織を示す顕微鏡写真
（１０皓）である。
写真に付した各符号はそれぞれ下記のものを示す。１・
・・・・シリコンの初晶、２・・・・・・α−アルミニ
ウム、３・・・・・・鉄化合物〔Ｋ６（Ａｌ４ＦｅＳｉ
）〕。The additional photograph is a micrograph (10 mm) showing the structure of the cast alloy of Example 1. Each code attached to the photo indicates the following. 1・
...Primary crystal of silicon, 2...α-aluminum, 3... Iron compound [K6 (Al4FeSi
)].
Claims (1)
重量％、鉄１．５〜４．０重量％及びアルミニウム残部
よりなる耐スカツフイング性に優れた体摩耗性アルミニ
ウム合金。 ２ 珪素１４．０〜２０．０重量％、銅２．０〜５．０
重量％、鉄１．５〜４．０重量％、マグネシウム１．０
重量％以下及びアルミニウム残部よりなる耐スカツフイ
ング性に優れた耐摩耗性アルミニウム合金。[Claims] 1. Silicon 14.0-20.0% by weight, copper 2.0-5.0% by weight
A wear-resistant aluminum alloy having excellent scuffing resistance and comprising 1.5 to 4.0 weight % iron and the balance aluminum. 2 Silicon 14.0-20.0% by weight, copper 2.0-5.0%
Weight%, Iron 1.5-4.0% by weight, Magnesium 1.0
A wear-resistant aluminum alloy with excellent scuffing resistance consisting of less than % by weight and the remainder of aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10046081A JPS6047897B2 (en) | 1981-06-30 | 1981-06-30 | Wear-resistant aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10046081A JPS6047897B2 (en) | 1981-06-30 | 1981-06-30 | Wear-resistant aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS583946A JPS583946A (en) | 1983-01-10 |
| JPS6047897B2 true JPS6047897B2 (en) | 1985-10-24 |
Family
ID=14274516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10046081A Expired JPS6047897B2 (en) | 1981-06-30 | 1981-06-30 | Wear-resistant aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6047897B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61291941A (en) * | 1985-06-19 | 1986-12-22 | Taiho Kogyo Co Ltd | Cast al alloy having high si content |
| US5149257A (en) * | 1989-03-29 | 1992-09-22 | Diesel Kiki Co., Ltd. | Compressor with a cylinder having improved seizure resistance and improved wear resistance, and method of manufacturing the cylinder |
| JPH08333645A (en) * | 1995-06-06 | 1996-12-17 | Toyota Motor Corp | Al-based composite material having excellent adhesion resistance and method for producing the same |
-
1981
- 1981-06-30 JP JP10046081A patent/JPS6047897B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS583946A (en) | 1983-01-10 |
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