JPS58100642A - Piston and manufacture - Google Patents
Piston and manufactureInfo
- Publication number
- JPS58100642A JPS58100642A JP57165968A JP16596882A JPS58100642A JP S58100642 A JPS58100642 A JP S58100642A JP 57165968 A JP57165968 A JP 57165968A JP 16596882 A JP16596882 A JP 16596882A JP S58100642 A JPS58100642 A JP S58100642A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- fibers
- mat
- mold
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000000835 fiber Substances 0.000 claims description 18
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 238000005266 casting Methods 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims description 9
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 6
- 239000012779 reinforcing material Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 229910000676 Si alloy Inorganic materials 0.000 claims description 2
- ZUPBPXNOBDEWQT-UHFFFAOYSA-N [Si].[Ni].[Cu] Chemical compound [Si].[Ni].[Cu] ZUPBPXNOBDEWQT-UHFFFAOYSA-N 0.000 claims description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 241000555745 Sciuridae Species 0.000 claims 1
- 241000270666 Testudines Species 0.000 claims 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 claims 1
- 229910010271 silicon carbide Inorganic materials 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- KNVAYBMMCPLDOZ-UHFFFAOYSA-N propan-2-yl 12-hydroxyoctadecanoate Chemical compound CCCCCCC(O)CCCCCCCCCCC(=O)OC(C)C KNVAYBMMCPLDOZ-UHFFFAOYSA-N 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
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
- B22D19/0027—Cylinders, pistons pistons
-
- 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
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- 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
- F02F3/00—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
- F02F3/00—Pistons
- F02F3/10—Pistons having surface coverings
- F02F3/12—Pistons having surface coverings on piston heads
-
- 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
- F02F2200/00—Manufacturing
- F02F2200/06—Casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/16—Fibres
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 この発明は内燃機関用ピストンにかかるものである。[Detailed description of the invention] The present invention relates to a piston for an internal combustion engine.
アルミ合金といったような軽金属合金のピストン、特に
燃焼皿を持つジーゼル・ピストン、は運転状況次第では
その頂にひび割れを生じかねないことが知られている。It is known that pistons made of light metal alloys such as aluminum alloys, especially diesel pistons with combustion plates, can develop cracks at the top under certain operating conditions.
そうし九ひび割れＦｉたいてい燃焼皿のへりまわりで
あり、燃焼皿が内向き型のものであれば特にひどいこと
になりかねない。This type of crack usually occurs around the edges of the burner, and can be especially bad if the burner is an inward-facing type.
高度な強さで高度な熱伝導率の銅合金、たとえばぺＩＪ
ＩＪクム・銅や銅・ニッケル・けい素青銅といったも
の、で作られた鋳込み補強の使用で、そうしたひび割れ
しやすいその燃焼皿のへりがそうした銅合金材の部内で
機械加工されているというもの、によってそのようなひ
び割れが除かれ得ることも知られている。Copper alloys with high strength and high thermal conductivity, such as PEIJ
The use of cast-in reinforcements made of copper, copper, nickel, and silicon bronze, such that the crack-prone edges of the combustion pan are machined within such copper alloy materials; It is also known that such cracks can be eliminated by.
そうした銅合金補強まわりのそのピストン類でのそうし
たアルミ合金の強さは、その銅合金補強の慣性荷重によ
って及はされる応力に耐えにくいものであるため、（ス
テンレス鋼または銅合金でもよい）突き出し胛によって
そのピストンの低目な温度Ｓ分向へそうした補強をアン
カーづけすることが一般に必要なものである。The strength of such aluminum alloys (which may be stainless steel or copper alloys) in the pistons around such copper alloy reinforcements is such that they cannot withstand the stresses exerted by the inertial loads of the copper alloy reinforcements. It is generally necessary to anchor such reinforcement to the lower temperature S direction of the piston by means of a ferrule.
しかし、そのようなピストンの製作は、いろいろな問題
を生じることに虚っている。 それらは基本的には：
ａ）そのピストンが在来の頂部上向き鋳込み手法で作ら
れるならば位置の精度、
ｂ）鋳込みが頂部下向きで鋳込まれるようにして、そう
した補強やアンカー脚の正確の位置づけを楽にすると、
スカート部すきま性なしということをａ！実に実現する
問題、
である。However, the construction of such pistons suffers from various problems. They are basically: a) accuracy of position if the piston is made by conventional top-up casting techniques; b) accuracy of such reinforcement and anchor legs so that the casting is cast top-down. To make positioning easier,
A! There is no gap in the skirt part! This is a problem that can actually be realized.
この発明は、補強頂を持つ軽金属合金ピストンとその製
造方法であって上に述べられたピストン類ひび割れの問
題にうち勝つとか実質的に除くとかになるもので、ピス
トン合金へそうした補強をアンカーづけするためにアン
カー脚とか金属間接合とかの手だてに頼るのではなくて
、しかも同時に、鋳込みすきま性をそれも特にその鋳込
みのうす手部分で実質的に除くということによってその
母材鋳物合金の機械的特性を改善する、というものを提
供することを目的とする。 この発明のさらにまたひと
つの目的は、補強頂を持ち上記構造特性を備える軽金属
合金ピストンを提供することである。The present invention is a light metal alloy piston with a reinforced peak and method of manufacturing the same that overcomes or substantially eliminates the problem of piston cracking described above by anchoring such reinforcement to the piston alloy. Rather than relying on measures such as anchor legs or metal-to-metal joints to achieve this, it also improves the machine quality of the base casting alloy by substantially eliminating casting clearance, especially in the thinner part of the casting. The purpose is to improve the physical characteristics of Yet another object of the invention is to provide a light metal alloy piston with a reinforced peak and the structural characteristics described above.
この発明は、補強頂を持つ軽金属合金のピストンに関し
、その補強というのは補強材のクイスカなり繊維なりの
層というかマットというかを含み、それはその軽金属合
金内でそのすたま空間が満たされているように七の内部
へ埋め込まれているものである、ということで特徴づけ
られているもの、にあるものである。The present invention relates to a piston of a light metal alloy with a reinforcing top, the reinforcement comprising a layer or mat of reinforcing material, such as a quill or fiber, which fills the void space within the light metal alloy. It is something that is characterized by being embedded within the seven, just as it is.
この発明によって、補強頂を持つ軽金属合金ピストンを
作るその方法は、つぎの工程を含むものである：
ａ）ピストン鋳型またはダイを、頂部下向き、すなわち
ピストン頂を形づくるその鋳型またはダイ部分がいちば
ん下にくるように、配設する工程。The method of making a light metal alloy piston with a reinforced top according to the invention includes the steps of: a) placing a piston mold or die with the top facing downwards, i.e. with the portion of the mold or die that forms the piston top being at the bottom; As such, the process of arranging it.
ｂ）その鋳型ま念はダイの底面上に、その面の全面なり
特定選択された一８Ａ分なり特定選択された何８分なり
のいずれかをおおうようにして、補強材のクイスカなり
繊維なりのマットを位置づける工程。b) The mold is placed on the bottom of the die so that it covers either the entire surface of that surface, a specifically selected 18A section, or a specifically selected 8 minute section, and then inserts the reinforcing material or fibers. The process of positioning the mat.
Ｃ）その鋳ＦＭまたはダイ内へ軽金属合金の溶湯を入れ
込んで、そのマットをおおい込んでその鋳型ま念はダイ
を満食すようにする工程。C) A process of pouring molten light metal alloy into the casting FM or die and covering the mat so that the mold fills the die.
ｄ）そのマットとその溶湯とのあいだの表面張力にうち
勝ってその溶湯がそのマットのすきま空間をしみ渡り通
って満たすことをａ！実にするに十分な圧力をその鋳型
またはグイ内のそうした溶湯へ及ぼす工程。d) The surface tension between the mat and the molten metal is overcome and the molten metal permeates through the gap in the mat to fill it. The process of exerting sufficient pressure on such molten metal in its mold or gou to cause it to become molten.
ｅ）その溶融合金がそのクイスカなり繊維なりのマット
に触れたままで固化するようにして、その軽金属合金内
に埋め込まれたものとしてそうしたクイスカなり繊維な
りを備えている複合材鋳物を形づくるようにする工程。e) allowing the molten alloy to solidify while in contact with the mat of quills or fibres, forming a composite casting with such quills or fibers as embedded within the light metal alloy; Process.
その複合材鋳物は仕上がりピストンを作り出すべく機械
加工される。The composite casting is machined to create the finished piston.
その軽金職合金は好ましくはアルミ合金、すなわちアル
ミ・けい素合金といつ九ようなもの、である。 実質的
に純粋なアルミニラムも使われ得る。The light metal alloy is preferably an aluminum alloy, such as an aluminum-silicon alloy. Substantially pure aluminum ram may also be used.
それらクイスカなり繊維なりというのは好ましくはアル
ミナ（ｋｌｔＯｓ’） または炭化けい素（ＳＩＣ）
である。 それらクイスカなり繊維なりの好ましい直径
は約２〜約５ミクロンである。The fibers are preferably alumina (kltOs') or silicon carbide (SIC).
It is. The preferred diameter of the Cusca fibers is from about 2 to about 5 microns.
そうしたマット＃ｉ、イギリス特許第１４８９８４６号
に述べられｔ工法で作られ得る。 ほかの耐火性酸化物
とか金属化合物とかも使われ得るし、ベリリウム・鋼合
金や銅・ニッケル・けい素青銅といったような、高度な
強さで高度な熱伝導率の金属類、もそうである。Such a mat #i can be made by the method described in British Patent No. 1,489,846. Other refractory oxides and metal compounds can also be used, as can metals with high strength and high thermal conductivity, such as beryllium-steel alloys and copper-nickel-silicon bronzes. .
その鋳型またはダイの底面上に位置づけられるそうした
マットは、６〜１（１ｍの厚さとつぎのようなす劇ま度
、すなわちそうした溶融合金でしみ込まされると容積で
５〜４０１好ましくＦｉ２０％、のクイスカなり繊維な
りのものとなるぐあい、を持つものでよい。Such a mat, positioned on the bottom of the mold or die, has a thickness of 6-1 (1 m) and a thickness of 5-401 (preferably Fi20%) by volume when impregnated with such molten alloy. It can be anything that has the properties of fibers.
そのマットは、七の鋳型またはダイの底面上にただ乗っ
ているだけで、その鋳型ま九はダイの天井部を通してた
とえば約６７０〜７４０℃の温度で入れ込まれる溶融合
金によってそこにものは無用である。 そのマットは、
その鋳型またはダイの底面の全面いっばいにおおい渡っ
てもよいし、あるいは、環状のものでしたがって燃焼皿
を形づくるべく機械加工削りｈすされる頂部の中央部分
が実質的に軽金属合金からなるものでその補強はその燃
焼皿のヘリまわりにあるというものでもよい。 そうし
た環状マットは、必らずしもその頂部の外局にまで延び
渡っていなくてもよい。The mat simply rests on the bottom of the mold or die, and the mold is emptied by the molten alloy that is introduced through the ceiling of the die at a temperature of, say, about 670-740°C. It is. That mat is
It may span the entire bottom of the mold or die, or it may be annular and therefore consist essentially of a light metal alloy in the central portion of the top which is machined to form the combustion dish. The reinforcement may be around the edge of the combustion dish. Such an annular mat does not necessarily have to extend all the way to its top exterior.
その鋳型またはダイの中央部上方でのラムによって圧力
がその溶融金属へ及ぼされてよい。Pressure may be exerted on the molten metal by a ram above the center of the mold or die.
そのラムはその溶融金属に触れたまま押し下げられ、そ
の溶融金属が七のマットのすきま空間を下方へしみ渡り
通って満たすようにさせて、同時に、その合金の機械的
特性を改善し、その鋳物のすきま度をそれもその鋳物の
ピストン・スカートやそのほかのうす手部分で特に減少
させることになるわけである。 施されるそうしたしぼ
り込み鋳込み荷重はそのピストンの寸法に応じてＢＮ２
Ｏｔａ／ １ｎｃｈ”（８１５〜８１５０智）でよく
、そうした荷重Ｆｉ、これまたそのように鋳込まれてい
る部分の寸法に応じて５５秒間から２分間までにわたっ
て保たれる。The ram is pressed down while touching the molten metal, causing the molten metal to seep downwardly and fill the interstitial space of the mat, simultaneously improving the mechanical properties of the alloy and molding the casting. This also reduces clearances, particularly in the piston skirts and other thin areas of the casting. Such a reduction casting load applied is BN2 depending on the dimensions of the piston.
Ota/1 nch'' (815 to 8150 in) and such load Fi is maintained for a period of from 55 seconds to 2 minutes, again depending on the dimensions of the part so cast.
そのマットのそうしたクイスカなり繊維なりはばらばら
な向きでもよいし、あるいは、余分な強さが必要とされ
る特定の方向に並べ揃えられてもよい。 望みとあれば
、それらクイスカなり繊維なりは、たとえば２００〜８
５０℃に、予熱されてもよい。The quills or fibers of the mat may be loosely oriented or aligned in a particular direction where extra strength is required. If desired, those quills or fibers should be, for example, 200 to 8
It may be preheated to 50°C.
この発明のひとつの実施例が添付図面に示されており、
その図でのピストンの、軽金属合金（りの頂部内にクイ
スカなり繊維なりの環状マット（１）が埋め込まれてい
る。An embodiment of the invention is shown in the accompanying drawings,
The piston in this figure has an annular mat (1) of fibers embedded in the top of the light metal alloy.
図は、この発明による補強頂を持つ軽金属合金ピストン
のひとつの実施例の断面図である。
自発 手 続 補 正 書
１′ｆ訂！１ 長官 殿
ｌ 事件の表示
昭和５７年 特 願 第 １６５９６８り；２
発明の名（乃
ピストンとその製造方法
３ 補正をする者
事件との関係 特許 出願人４代町人
７、 補正の内容
（１） 特許出願人の代表者を、別紙の通り補充致し
ます。
（２１トレーシングペーパーに画いた図Ｌｉ］を。
９０紙の通り補充致します。
１２１ 委任状とその訳文を、別紙の通電補充致しま
す。
＆ 添付書類目録The figure is a cross-sectional view of one embodiment of a light metal alloy piston with a reinforced top according to the present invention. Voluntary procedure amendment book 1'f revision! 1. Director General Indication of the Case 1982 Special Application No. 165968; 2
Name of the invention (no piston and its manufacturing method 3 Relationship with the case of the person making the amendment Patent Applicant 4th generation townsman 7, Contents of the amendment (1) The representative of the patent applicant will be replaced as shown in the attached sheet. ( 21 Drawing Li] drawn on tracing paper. 90 I will supplement it as per the paper. 121 I will supplement the power of attorney and its translation on the attached sheet. & List of attached documents
Claims (1)
つ軽金属合金ピストン。 新規特質：その補強は補強材のクィスヵなり繊維なりの
層というかマットとい うかを含み、それはその軽金属合 金円でそのすきま空間が満たされ ているようにその内部へ埋め込ま れているものである。 ■ 特許請求の範囲■記載の発明において、その軽金属
合金がたとえばアルミ・けい素合金というようなアルミ
合金であるというピストンＯ ■ 特許請求の範囲■または■に記載の発明において、
そうしたクィスヵなり繊維なりが、アルミナ、炭化けい
素、ベリリウム・銅合金、または、銅・ニッケル・けい
素青銅、がら選択され７ｔ４のであるというピストン。 ■ 特許請求の範囲■〜■の・いずれかに記載の発明に
おいて、そうしたクイスカなり繊維なりが、２〜５ミク
ロンの直径を袴り奄のであるというピストン。 ■ 特許請求の範囲■〜■のいずれかに記載の発明にお
いて、クイスカなり繊維々りのそうした層というかマッ
トというかが環状のものであるというピストン。 ■ 特許請求の範囲■〜■のいずれかに記載の発明にお
いて、へりがそうしたクィスカなり繊維なりで補強され
ている燃焼皿備え込み形にそのピストン環が形づくられ
ているというピストン。 ■ 補強頂を持つ軽金属合金ピストンを作るつぎの工程
を含む方法。 亀〕 ピストン鋳型またはグイを、頂部下向き、すなわ
ちピストン環を形づくるその鋳型またはグイＳ分がいち
ばん下にくるように、配設する工程。 ｂ）その鋳型またはダイの底面上ＩＣ１その面の全面な
り特定選択された一部分なり特定選択された何部分なり
のいずれかをおおうようにして、補強材のクイスカなり
繊維なりのマットを位置づける工程。 Ｃ）その鋳型またはグイ内へ軽金属合金の溶湯な入れ込
んで、そのマットをおおい込んでその鋳型またはグイを
満たすようにする工程。 ｄ）そのマットとその溶湯とのあいだの表面張力にうち
勝ってその溶湯がそのマットのすきま空間をしみ渡り通
って満たすことを１１１実にするに十分な圧力をその鋳
型オたはグイ内のそうし念溶湯へ及ぼす工程。 Ｃ）その溶湯合金がそのクイスカなり繊維なりのマット
に触れ＋ｔまで固化するようにして、その軽金属合金内
に埋め込まれたものとしてそうしたクイスカなり繊維な
りを備えている複合材鋳物を形づくるようにする工程。 ■ 特許請求の範囲■記載の発明において、七のピスト
ン類の中央部分が削り去り加工されて、ヘリがそうした
クイスカなり繊維なりで補強されている燃焼皿、を形づ
くるようにされる方法。 ■ 特許請求の範囲■記載の発明において、その鋳型ま
ｆｅ＃ｉダイの中空部上部での２ムによって、たとえば
２〜２０ ｔａ／ １ｎｃｈ（８１５〜８１５０ｖＪ）
の範囲内での、圧力が七の溶融金属へ及ぼされる方法。 ０ 特許請求の範囲■〜■のいずれかに記載の発明にお
いて、クイスカなり繊維なりのそうした層というかイツ
トというかが、そうした溶融金属でしみ込まされると容
積で５〜４０チのクイスカなり繊維なりのものとなるよ
うなすきま度を持つものである、という方法。[Claims] ■ A light metal alloy piston with a reinforced top, characterized by the following novel characteristics: Novel feature: The reinforcement includes a layer or mat of reinforcing material, such as a reinforcing material, which is embedded into the interior so that the interstitial space is filled with the light metal alloy circle. ■ In the invention described in claim ■, a piston O in which the light metal alloy is an aluminum alloy such as an aluminum-silicon alloy. ■ In the invention described in claim ■ or ■,
The piston is made of 7t4, in which the fibers are selected from alumina, silicon carbide, beryllium-copper alloy, or copper-nickel-silicon bronze. (2) In the invention described in any one of claims (1) to (2), the piston is characterized in that the fibers have a diameter of 2 to 5 microns. ■ In the invention described in any one of claims ■ to ■, the piston is characterized in that the layer or mat of quills or fibers is annular. (2) The invention according to any one of claims (1) to (2), wherein the piston ring is formed into a combustion dish-equipped type whose edges are reinforced with such quiskers or fibers. ■ A method of making a light metal alloy piston with a reinforced top that includes the following steps: [Turtle] The process of arranging the piston mold or gou so that the top of the mold or gou is facing downward, that is, the part of the mold or gou that forms the piston ring is at the bottom. b) Positioning a mat of reinforcing material such as quisca or fiber so as to cover either the entire surface of the IC1 surface, a specifically selected portion, or a specifically selected portion of the IC1 surface on the bottom surface of the mold or die. C) Pour a molten light metal alloy into the mold or gou to cover the mat and fill the mold or gou. d) applying sufficient pressure in the mold hole or gun to overcome the surface tension between the mat and the molten metal and to cause the molten metal to seep through and fill the interstitial spaces in the mat; A process that affects the molten metal. C) allowing the molten alloy to solidify to +t on contact with the mat of quills or fibers to form a composite casting with the quills or fibers as embedded within the light metal alloy; Process. ■Claims■In the invention described in ■, a method in which the central portion of the seven pistons is removed and processed to form a combustion plate in which the edges are reinforced with such squirrels or fibers. ■ Scope of Claims ■ In the invention described in ■, for example, 2~20 ta/1nch (815~8150vJ)
The method by which pressure is exerted on the molten metal within the range of 7. 0 In the invention described in any one of claims ■ to ■, when such a layer of quills or fibers is impregnated with such molten metal, it becomes a quills or fiber with a volume of 5 to 40 inches. The method is to have a clearance that makes it possible to
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8128674 | 1981-09-22 | ||
| GB08128674A GB2106433B (en) | 1981-09-22 | 1981-09-22 | Squeeze casting of pistons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58100642A true JPS58100642A (en) | 1983-06-15 |
Family
ID=10524678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57165968A Pending JPS58100642A (en) | 1981-09-22 | 1982-09-22 | Piston and manufacture |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS58100642A (en) |
| DE (1) | DE3234504A1 (en) |
| FR (1) | FR2513153B1 (en) |
| GB (1) | GB2106433B (en) |
| IT (1) | IT1159218B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01232152A (en) * | 1988-03-09 | 1989-09-18 | Toyota Motor Corp | Fiber reinforced aluminum alloy made piston internal combustion engine |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2123727B (en) * | 1982-06-25 | 1985-11-20 | Ae Plc | Pressure-casting pistons |
| GB2132524A (en) * | 1982-11-24 | 1984-07-11 | Ae Plc | Casting aluminium or aluminium alloys on to other metal materials |
| GB8301320D0 (en) * | 1983-01-18 | 1983-02-16 | Ae Plc | Reinforcement of articles of cast metal |
| GB2135222B (en) * | 1983-02-04 | 1987-11-11 | Ae Plc | The reinforcement of pistons of aluminium or aluminium alloys |
| DE3418405A1 (en) * | 1983-05-18 | 1984-11-29 | Mazda Motor Corp., Hiroshima | Method for the production of castings from aluminium alloy and of pistons composed of an aluminium alloy |
| US4546048A (en) * | 1984-03-23 | 1985-10-08 | Dana Corporation | Composite thermal shield for engine components |
| GB8409044D0 (en) * | 1984-04-07 | 1984-05-16 | Gkn Technology Ltd | Casting metal articles |
| GB2158185B (en) * | 1984-05-01 | 1987-08-05 | Ae Plc | Reinforced light metal pistons |
| GB8413800D0 (en) * | 1984-05-30 | 1984-07-04 | Ae Plc | Manufacture of pistons |
| DE3430056C1 (en) * | 1984-08-16 | 1986-01-16 | Mahle Gmbh, 7000 Stuttgart | Plunger with fiber-reinforced combustion chamber bowl for internal combustion engines |
| DE3444406A1 (en) * | 1984-12-05 | 1986-06-05 | Kolbenschmidt AG, 7107 Neckarsulm | CASTED COMPONENTS FOR INTERNAL COMBUSTION ENGINES WITH PEGED-IN REINFORCEMENT BODIES, AND METHOD FOR PRODUCING THE CONNECTION BETWEEN THE COMPONENTS AND THE REINFORCEMENT BODIES |
| BR8500556A (en) * | 1985-02-07 | 1986-09-09 | Metal Leve S/A. Industria E Comercio | PUMP AND PUMP MANUFACTURING PROCESS FOR INTERNAL COMBUSTION ENGINES |
| GB2175893A (en) * | 1985-04-02 | 1986-12-10 | Ae Plc | Fibre-reinforced ceramic materials |
| US4587177A (en) * | 1985-04-04 | 1986-05-06 | Imperial Clevite Inc. | Cast metal composite article |
| GB8518909D0 (en) * | 1985-07-26 | 1985-09-04 | Ae Plc | Engineering components |
| FR2592374B1 (en) * | 1985-12-27 | 1991-08-16 | Peugeot | CERAMIC-METAL DIRECT LINKING PROCESS |
| DE3700651A1 (en) * | 1987-01-12 | 1988-07-21 | Kloeckner Humboldt Deutz Ag | Cylinder head for air-cooled internal combustion engines |
| EP0280830A1 (en) * | 1987-03-02 | 1988-09-07 | Battelle Memorial Institute | Method for producing metal or alloy casting, composites reinforced with fibrous or particulate materials |
| JPH04224198A (en) * | 1990-12-26 | 1992-08-13 | Tokai Carbon Co Ltd | Production of mmc preform |
| DE4243023A1 (en) * | 1992-12-18 | 1994-06-23 | Audi Ag | Ceramic reinforced composite, used for moving internal combustion engine components. |
| DE19712624C2 (en) * | 1997-03-26 | 1999-11-04 | Vaw Motor Gmbh | Aluminum matrix composite and process for its manufacture |
| WO2002049790A1 (en) * | 2000-12-21 | 2002-06-27 | Jury Alexandrovich Tsyrulnik | Method for producing pistons for internal combustion engines |
| US9180511B2 (en) | 2012-04-12 | 2015-11-10 | Rel, Inc. | Thermal isolation for casting articles |
| USD726224S1 (en) | 2013-03-15 | 2015-04-07 | S.P.M. Flow Control, Inc. | Plunger pump thru rod |
| US8707853B1 (en) | 2013-03-15 | 2014-04-29 | S.P.M. Flow Control, Inc. | Reciprocating pump assembly |
| CA2953565C (en) | 2014-06-27 | 2022-11-15 | S.P.M. Flow Control, Inc. | Pump drivetrain damper system and control systems and methods for same |
| CN110360074A (en) | 2014-07-25 | 2019-10-22 | S.P.M.流量控制股份有限公司 | Curved shaft support device |
| WO2016105602A1 (en) | 2014-12-22 | 2016-06-30 | S.P.M. Flow Control, Inc. | Reciprocating pump with dual circuit power end lubrication system |
| USD759728S1 (en) | 2015-07-24 | 2016-06-21 | S.P.M. Flow Control, Inc. | Power end frame segment |
| US10436766B1 (en) | 2015-10-12 | 2019-10-08 | S.P.M. Flow Control, Inc. | Monitoring lubricant in hydraulic fracturing pump system |
| CN112648104B (en) * | 2020-12-07 | 2022-07-19 | 中国兵器科学研究院宁波分院 | Whisker reinforced aluminum alloy piston and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341622A (en) * | 1976-09-27 | 1978-04-15 | Honda Motor Co Ltd | Piston made of fiber-reinforced light alloy |
| JPS5442333A (en) * | 1977-08-08 | 1979-04-04 | Honda Motor Co Ltd | Production of fiberrreinforced composite material |
| JPS54155914A (en) * | 1978-05-26 | 1979-12-08 | Hepworth & Grandage Ltd | Composite material production |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE455368C (en) * | 1926-08-17 | 1928-01-30 | Richard Mueller | Process for the production of light metal pistons with cast-in chucks for the sealing rings |
| DE654297C (en) * | 1935-05-27 | 1937-12-16 | Eisenbau A G | Gas heater |
| GB807633A (en) * | 1956-11-26 | 1959-01-21 | Wendell Chester Cheney | Piston with head insert and process of making it |
| JPS5260222A (en) * | 1975-09-30 | 1977-05-18 | Honda Motor Co Ltd | Method of manufacturing fibre reinforced composite |
| JPS5292827A (en) * | 1976-01-16 | 1977-08-04 | Honda Motor Co Ltd | Method of manufacturing structures with fiber reinforced composite parts |
| US4137887A (en) * | 1976-06-11 | 1979-02-06 | Perkins Engines Limited | Pistons for internal combustion engines |
| DE2743512A1 (en) * | 1977-08-27 | 1979-03-01 | Eugen Stump | IC engine piston suppressing noise - has chromium plated rim ring held with heat resistant expansion layer |
| GB1598585A (en) * | 1978-05-03 | 1981-09-23 | Wellworthy Ltd | Pistons |
-
1981
- 1981-09-22 GB GB08128674A patent/GB2106433B/en not_active Expired
-
1982
- 1982-09-17 DE DE19823234504 patent/DE3234504A1/en not_active Ceased
- 1982-09-22 IT IT46860/82A patent/IT1159218B/en active
- 1982-09-22 FR FR8215983A patent/FR2513153B1/en not_active Expired
- 1982-09-22 JP JP57165968A patent/JPS58100642A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5341622A (en) * | 1976-09-27 | 1978-04-15 | Honda Motor Co Ltd | Piston made of fiber-reinforced light alloy |
| JPS5442333A (en) * | 1977-08-08 | 1979-04-04 | Honda Motor Co Ltd | Production of fiberrreinforced composite material |
| JPS54155914A (en) * | 1978-05-26 | 1979-12-08 | Hepworth & Grandage Ltd | Composite material production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01232152A (en) * | 1988-03-09 | 1989-09-18 | Toyota Motor Corp | Fiber reinforced aluminum alloy made piston internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3234504A1 (en) | 1983-04-07 |
| FR2513153A1 (en) | 1983-03-25 |
| IT8246860A0 (en) | 1982-09-22 |
| GB2106433A (en) | 1983-04-13 |
| GB2106433B (en) | 1985-11-06 |
| IT1159218B (en) | 1987-02-25 |
| FR2513153B1 (en) | 1987-01-09 |
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