JPS5997752A - Production of cylinder made of aluminum alloy - Google Patents
Production of cylinder made of aluminum alloyInfo
- Publication number
- JPS5997752A JPS5997752A JP20717182A JP20717182A JPS5997752A JP S5997752 A JPS5997752 A JP S5997752A JP 20717182 A JP20717182 A JP 20717182A JP 20717182 A JP20717182 A JP 20717182A JP S5997752 A JPS5997752 A JP S5997752A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- treatment
- casting
- aluminum alloy
- cylinder
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は高硅素アルミニウム合金製のスリーブの周囲に
アルミニウム合金を鋳ぐるんで一体的に設けたアルミニ
ウム合金製シリンダの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing an aluminum alloy cylinder, which is integrally provided by casting an aluminum alloy around a high silicon aluminum alloy sleeve.
内燃機関用シリンダは、ピストンとの摺動面における耐
摩耗性を満足する必要があるため、従来にあってはピス
トンとの摺動面を鋳鉄製スリーブとしたアルミニウム合
金製シリンダを用いている。Cylinder for internal combustion engines must satisfy wear resistance on the sliding surface with the piston, so conventionally, an aluminum alloy cylinder with a cast iron sleeve on the sliding surface with the piston is used.
ところで自動車用或いは自動二輪重用エンジンにあって
は軽量化及び高性能化が要求される。が、従来の鋳鉄製
スリーブは重量及び熱伝導性の点で問題がある。Incidentally, engines for automobiles or heavy motorcycles are required to be lighter in weight and have higher performance. However, conventional cast iron sleeves have problems in terms of weight and thermal conductivity.
このためスリーブを軽量で耐摩耗性に優れ且つ熱伝導性
の良い高硅素アルミニウム合金製とすることが考えられ
るが、この高硅素アルミニウム合金製スリーブを用いて
シリンダを製造する場合、以下の如き問題がある。For this reason, it is conceivable to make the sleeve made of a high-silicon aluminum alloy that is lightweight, has excellent wear resistance, and has good thermal conductivity. However, when manufacturing a cylinder using this high-silicon aluminum alloy sleeve, the following problems arise. There is.
即ち、シリンダ全体を高硅素アルミニウム合金によって
一体的に鋳造すると、コストアップになるばかりでな（
、加工性に劣るという不利がある。In other words, if the entire cylinder were to be integrally cast from high-silicon aluminum alloy, the cost would not only increase (
, has the disadvantage of poor processability.
このため、高硅素アルミニウム合金によって先ずスリー
ブを鋳造成いは鍛造等の手段によって成形し、このスリ
ーブの周囲にダイキャスト法によってアルミニウム合金
を鋳ぐるむ方法が考えられる。For this reason, a method can be considered in which a sleeve is first formed from a high-silicon aluminum alloy by means such as casting or forging, and then the aluminum alloy is cast around the sleeve by a die-casting method.
しかしながら、斯る夕“イキャスト法によって鋳ぐるむ
場合にば、金型内にアルミニウム合金の溶湯を高速で射
出充填するため空気などのガスを巻き込む。そしてこの
ガスはグイキャスト後のシリンダに熱処理、特に溶体化
処理を施ず際にブリスターとして表面に現われる。この
ためアルミニウム合金ダイキャスト製品に対してはダイ
キャスト後の熱処理が困難であるという問題がある。ま
た、ダイキャスト法によって高硅素アルミニウム合金製
スリーブを鋳ぐるむ場合には、溶湯の熱により該スリー
ブの硬度が低下し、耐摩耗性に劣ることとなるという問
題がある。However, when casting by the "I-casting method", gas such as air is drawn in to inject and fill the mold with molten aluminum alloy at high speed.This gas is then used to heat-treat the cylinder after casting. , which appear on the surface as blisters especially when solution treatment is not applied.Therefore, there is a problem that heat treatment after die casting is difficult for aluminum alloy die cast products.In addition, high silicon aluminum When casting an alloy sleeve, there is a problem in that the hardness of the sleeve decreases due to the heat of the molten metal, resulting in poor wear resistance.
本発明は上述した従来の問題を改善すべく成したもので
あって、シリンダバレル内側に設けるスリーブを高硅素
アルミニウム合金製とし、しかもこのスリーブの硬度を
高めることで、軽量で耐摩耗性及び熱伝導性に優れたア
ルミニウム合金製シリンダを製造する方法を提供するこ
とを目的とする。The present invention has been made to improve the above-mentioned conventional problems.The sleeve provided inside the cylinder barrel is made of high-silicon aluminum alloy, and by increasing the hardness of this sleeve, it is lightweight, wear-resistant, and heat-resistant. The object of the present invention is to provide a method for manufacturing an aluminum alloy cylinder with excellent conductivity.
この目的を達成ずべ（本発明は、予じめＴ４処理などの
溶体化処理を施した高硅素アルミニウム合金製スリーブ
を金型キャビティ内にセットし、次いでアルミニウム合
金の溶湯をキャビティ内に加電とし、このシリンダに人
工時効処理を旋圧充填して該スリーブ外周を鋳ぐるんで
シリンダ゛すようにしたことをその要旨としている。To achieve this objective, the present invention involves setting a high-silicon aluminum alloy sleeve that has been subjected to solution treatment such as T4 treatment in advance in a mold cavity, and then applying an electric current to the molten aluminum alloy in the cavity. The gist is that the cylinder is filled with an artificial aging treatment under pressure, and the outer periphery of the sleeve is cast.
以下に本発明の実施の一例を工程順に従って説明する。An example of implementing the present invention will be described below in accordance with the order of steps.
先ず硅素の含有量が１５〜１８ｗｔ％の高硅素アルミニ
ウム合金（ＪＩＳ、Ａ３９０相当）を鋳造成いは鍛造等
の手段によってスリーブに成形する。次いでこのスリー
ブにＴ４処理などの溶体化処理を施す。First, a high-silicon aluminum alloy (JIS, A390 equivalent) having a silicon content of 15 to 18 wt% is formed into a sleeve by casting, forging, or other means. This sleeve is then subjected to solution treatment such as T4 treatment.
具体的にはスリーブを４８０〜５００℃に加熱した後、
４〜６時間保持し、次いで水冷する。Specifically, after heating the sleeve to 480 to 500°C,
Hold for 4-6 hours, then cool with water.
この後第１図に示すように、上記スリーブ１を・金型２
のキャビティ３内にセットし、プランジャ４によって母
拐アルミニウム合金（ＪＩＳ、 へＤＣ１２相当）の
溶湯５を溶湯圧力９００ ＃／ｃｒｌでキャビティ３内
に加圧充填し、スリーブ１周囲を鋳ぐるむダイキャスト
鋳造を行なう。After that, as shown in FIG. 1, the sleeve 1 and the mold 2 are
The plunger 4 pressurizes the cavity 3 with molten aluminum alloy (JIS, equivalent to DC 12) at a molten metal pressure of 900 #/crl, and inserts a die that surrounds the sleeve 1 into the cavity 3. Carry out casting.
ここで上記ダイキャスト鋳造によって製造されたシリン
ダのスリーブ１は溶湯の熱によってその硬度が低下する
。具体的にはスリーブ１の上部から下部にかけて１−Ｉ
ＲＢ７９から１．、ｌ ＲＢ ６６の如き硬度分布とな
る。したがって一般に耐摩耗性の見地から許容できる硬
度は１１１７０以上であるのでスリーブ１の下部におい
て硬度が不足することとなる。Here, the hardness of the cylinder sleeve 1 manufactured by the die-casting process is reduced by the heat of the molten metal. Specifically, 1-I from the top to the bottom of sleeve 1
RB79 to 1. , l RB 66. Therefore, since the generally acceptable hardness from the standpoint of wear resistance is 11,170 or more, the lower part of the sleeve 1 will lack hardness.
そこで、上記ダイキャスト鋳造によって得られたシリン
ダ’ｋ １６０−１８０℃に加熱し４〜８時間時間線心
人工時効処理を施す。この人工時効処理を施すことでス
リーブ１の硬度は上部がら下部にがけて１旧ＬＩ３８４
〜Ｉ−Ｉ ＲＢ ７６の範囲に収まる。Therefore, the cylinder obtained by the above-mentioned die-casting process is heated to 160-180 DEG C. and subjected to artificial aging treatment for 4 to 8 hours. By applying this artificial aging treatment, the hardness of the sleeve 1 increases from the upper part to the lower part to 1 former LI384.
~I-I RB 76.
このような処理によりスリーブ１の硬度を高（し且つ安
定化し得るのは、溶体化処理した高硅素アルミニウム合
金製スリーブがダイキャスト鋳造時の熱では過時効状態
とはならずに［その後の時効効果が充分にあるためと推
察される。This treatment increases (and stabilizes) the hardness of the sleeve 1 because the solution-treated high-silicon aluminum alloy sleeve does not become over-aged under the heat of die-casting [subsequent aging]. It is presumed that this is because the effect is sufficient.
第２図はスリーブ１に予じめ施ず溶体化処理として′１
゛４処理と′１゛６処理を施しダイキャスト鋳造た場合
を比較したグラフである。このグラフから明らかなよう
に、スリーブ１に予じめ施ず溶体化処理として′１゛６
処理を選択した場合には１゛４処理を施ず場合ニ比へ、
ダイキャスト鋳造後のスリーブの硬度が上下においてバ
ラつき、且つ下部において必要な硬度が得られないこと
が分かる。また、同じＴ４処理を施した場合であっても
、ダイキャスト鋳造後に人工時効処理を行なわないもの
は下部にオ６いて必要な硬度が得られないことが分かる
。したがってスリーブ１に施す溶体化処理は′ｌ゛６処
理よりも′Ｉ゛４処理の方が優れているといえる。Figure 2 shows sleeve 1 not previously subjected to solution treatment.
This is a graph comparing cases of die-casting with the '4 treatment and the '1'6 treatment. As is clear from this graph, the sleeve 1 was not preliminarily subjected to solution treatment.
If processing is selected, go to 1.4 If no processing is selected, go to 2 ratio,
It can be seen that the hardness of the sleeve after die casting varies in the upper and lower parts, and that the required hardness cannot be obtained in the lower part. Furthermore, it can be seen that even if the same T4 treatment is applied, if the artificial aging treatment is not performed after die casting, the required hardness will not be obtained due to the presence of holes in the lower part. Therefore, it can be said that the 'I'4 treatment is superior to the 'I'6 treatment as the solution treatment applied to the sleeve 1.
以上説明したように本発明′匠よれば、高硅素アルミニ
ウム合金製スリーブの周囲をアルミニウム合金の溶湯に
よって鋳ぐるむダイキャスト鋳造に先だって、スリーブ
に溶体化処理を施し、またダイキャスト鋳造によって製
造されたシリンダ゛に人工時効処理金施ずようにしたこ
とにより、ターイキャスト鋳造によって低下したスリー
ブの硬度を所定の硬度にまで高めることができ、したが
って、軽量で且つ耐摩耗性及び熱伝導性に優れたアルミ
ニウム合金製シリンダを得ることができる等多大の効果
を発揮する１゜As explained above, according to the present invention, prior to die-casting in which the periphery of the high-silicon aluminum alloy sleeve is cast with molten aluminum alloy, the sleeve is subjected to solution treatment, and the sleeve is manufactured by die-casting. By not applying artificial aging treatment to the cylinder, it is possible to increase the hardness of the sleeve, which had been lowered by tie-casting, to the specified hardness, and therefore it is lightweight and has excellent wear resistance and thermal conductivity. 1゜ which has great effects such as being able to obtain a cylinder made of aluminum alloy.
図面は本発明の実施の一例を示し、第１図は本発明に係
るアルミニウム合金製シリンダの製造方法を実施するた
めの金型装置の断面図、第２図はスリーブに予じめ施す
溶体化処理としてのＴ４処理と１゛６処理とを比較した
グラフである。
尚、図面中１は高硅素アルミニウム合金製スリーブ、２
は金型、３はキャビティである。
特許出願人 本田技研工業株式会社
代理人弁理士 下 １） 容−部間 弁理士
大 橋 邦 産量 弁理士
小 山 有第１図
第２図
シリ〉クニライナー上舒θ゛５のｙ巨質庄 （％）手続
補正書（自発）
昭和５８年 ２′：Ｊ’、、＃ ７ 日・そう
特許庁長官 若 杉 和夫 殿
１・ 事件の表示 特願昭５７−２０７１７１号３、
補正をする者
事件との関係 特許出願人
（５３２） 本田技研工業株式会社
４、代理人
５、補正命令の１」付 自発
６、−−補正により増加する発明の数−（ａ） 第３
頁第１５行目にｒ Ｔ４処理」とあるｉ ｒ Ｔ。
処理（溶体化処理）」に」正する。
（ｂ） 第４頁第７行目にｒ Ｔ４処理などの溶体化
処理」とあるｋ 「Ｔ４処理（溶体化処理）」に削正す
る。
（ｃ）第５頁第１２行目に［・・・あるためと推察され
る。」とあるを「・・・あるだめである。」に削正する
。
（ｄ） 第５頁第１３行目、同第１６行目、第６頁第
４行目に「溶体化処理」とあるを「熱処理」に削正する
。
（２）図面の簡単な説明を以下の通り削正する。
第７頁第１行目に「溶体化処理」とあるを「熱処理」に
削正する。The drawings show an example of the implementation of the present invention, and FIG. 1 is a cross-sectional view of a mold device for carrying out the method for manufacturing an aluminum alloy cylinder according to the present invention, and FIG. It is a graph comparing T4 processing and 1゛6 processing as processing. In addition, 1 in the drawing is a sleeve made of high silicon aluminum alloy, 2
is a mold, and 3 is a cavity. Patent Applicant Honda Motor Co., Ltd. Representative Patent Attorney 2 1) Yong-Buma Patent Attorney Kuni Ohashi Production Patent Attorney Yu Koyama (%) Procedural amendment (voluntary) 1982 2': J',, # 7 Japan Patent Office Commissioner Kazuo Wakasugi 1. Indication of case Patent application No. 1987-207171 3,
Relationship with the case of the person making the amendment Patent applicant (532) Honda Motor Co., Ltd. 4, Attorney 5, Amendment order 1 attached Voluntary action 6, -- Number of inventions increased by amendment - (a) No. 3
The 15th line of the page says "r T4 processing". Correct "treatment (solution treatment)". (b) In the 7th line of page 4, r "Solution treatment such as T4 treatment" is revised to "T4 treatment (solution treatment)." (c) It is presumed that this is because there is [...] on page 5, line 12. ” should be revised to “...there is no way”. (d) In the 13th line of page 5, the 16th line, and the 4th line of page 6, the words "solution treatment" are revised to "heat treatment." (2) The brief description of the drawing will be revised as follows. In the first line of page 7, "solution treatment" is revised to "heat treatment."
Claims (1)
、このスリーブを金型キャビティ内にセットした後、ア
ル、ミニラム合金の溶湯を該キャビティ内に加圧充填し
てスリーブ外周を鋳ぐるんでアルミニウム合金製シリン
ダに人工時効処理を施ずようにしたことを特徴とするア
ルミニウム合金製シリンダの製造方法。After applying solution treatment to a high-silicon aluminum alloy sleeve and setting this sleeve in a mold cavity, molten aluminum or miniram alloy is pressurized into the cavity and the outer periphery of the sleeve is cast. A method for manufacturing an aluminum alloy cylinder, characterized in that the cylinder is not subjected to artificial aging treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20717182A JPS5997752A (en) | 1982-11-25 | 1982-11-25 | Production of cylinder made of aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20717182A JPS5997752A (en) | 1982-11-25 | 1982-11-25 | Production of cylinder made of aluminum alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5997752A true JPS5997752A (en) | 1984-06-05 |
| JPH0212667B2 JPH0212667B2 (en) | 1990-03-23 |
Family
ID=16535404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20717182A Granted JPS5997752A (en) | 1982-11-25 | 1982-11-25 | Production of cylinder made of aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5997752A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738298A (en) * | 1985-07-04 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting cylinder block blanks made of light alloy |
| US4766944A (en) * | 1985-06-21 | 1988-08-30 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting fiber-reinforced metal body |
| WO1990002017A1 (en) * | 1988-08-31 | 1990-03-08 | Kongsberg Automotive A/S | Method of manufacturing valve etc. housings |
| EP0431770A2 (en) * | 1989-12-04 | 1991-06-12 | General Motors Corporation | Lost-foam Casting of dual alloy engine block |
| JP2003033859A (en) * | 2001-07-23 | 2003-02-04 | Honda Motor Co Ltd | Manufacturing method for cylinder block |
| JP2007211349A (en) * | 2007-04-02 | 2007-08-23 | Yamaha Motor Co Ltd | Cylinder liner of engine |
| WO2011004090A1 (en) * | 2009-07-09 | 2011-01-13 | Peugeot Citroën Automobiles SA | Method for manufacturing aluminium alloy parts |
| RU2469121C1 (en) * | 2011-07-07 | 2012-12-10 | Открытое акционерное общество "Завод им. В.А. Дегтярева" | Hollow items manufacturing method |
-
1982
- 1982-11-25 JP JP20717182A patent/JPS5997752A/en active Granted
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4766944A (en) * | 1985-06-21 | 1988-08-30 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting fiber-reinforced metal body |
| US4738298A (en) * | 1985-07-04 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting cylinder block blanks made of light alloy |
| WO1990002017A1 (en) * | 1988-08-31 | 1990-03-08 | Kongsberg Automotive A/S | Method of manufacturing valve etc. housings |
| EP0431770A2 (en) * | 1989-12-04 | 1991-06-12 | General Motors Corporation | Lost-foam Casting of dual alloy engine block |
| JP2003033859A (en) * | 2001-07-23 | 2003-02-04 | Honda Motor Co Ltd | Manufacturing method for cylinder block |
| JP2007211349A (en) * | 2007-04-02 | 2007-08-23 | Yamaha Motor Co Ltd | Cylinder liner of engine |
| WO2011004090A1 (en) * | 2009-07-09 | 2011-01-13 | Peugeot Citroën Automobiles SA | Method for manufacturing aluminium alloy parts |
| FR2947745A1 (en) * | 2009-07-09 | 2011-01-14 | Peugeot Citroen Automobiles Sa | PROCESS FOR MANUFACTURING ALUMINUM ALLOY PARTS |
| RU2469121C1 (en) * | 2011-07-07 | 2012-12-10 | Открытое акционерное общество "Завод им. В.А. Дегтярева" | Hollow items manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0212667B2 (en) | 1990-03-23 |
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