JPH0151666B2 - - Google Patents

Info

Publication number
JPH0151666B2
JPH0151666B2 JP3124684A JP3124684A JPH0151666B2 JP H0151666 B2 JPH0151666 B2 JP H0151666B2 JP 3124684 A JP3124684 A JP 3124684A JP 3124684 A JP3124684 A JP 3124684A JP H0151666 B2 JPH0151666 B2 JP H0151666B2
Authority
JP
Japan
Prior art keywords
aluminum alloy
sintered body
outer periphery
zirconia
zirconia sintered
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
Application number
JP3124684A
Other languages
Japanese (ja)
Other versions
JPS60175752A (en
Inventor
Yasufumi Sato
Hiroshi Matsui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Priority to JP3124684A priority Critical patent/JPS60175752A/en
Priority to US06/702,736 priority patent/US4608321A/en
Priority to EP85301124A priority patent/EP0153191A3/en
Publication of JPS60175752A publication Critical patent/JPS60175752A/en
Publication of JPH0151666B2 publication Critical patent/JPH0151666B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0085—Materials for constructing engines or their parts
    • F02F7/0087—Ceramic materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
    • C04B37/026—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used consisting of metals or metal salts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/123—Metallic interlayers based on iron group metals, e.g. steel
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/02—Aspects relating to interlayers, e.g. used to join ceramic articles with other articles by heating
    • C04B2237/12—Metallic interlayers
    • C04B2237/125—Metallic interlayers based on noble metals, e.g. silver
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32—Ceramic
    • C04B2237/34—Oxidic
    • C04B2237/345—Refractory metal oxides
    • C04B2237/348—Zirconia, hafnia, zirconates or hafnates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30—Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40—Metallic
    • C04B2237/402—Aluminium
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/64—Forming laminates or joined articles comprising grooves or cuts
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/72—Forming laminates or joined articles comprising at least two interlayers directly next to each other
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/76—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc
    • C04B2237/765—Forming laminates or joined articles comprising at least one member in the form other than a sheet or disc, e.g. two tubes or a tube and a sheet or disc at least one member being a tube
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00—Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/50—Processing aspects relating to ceramic laminates or to the joining of ceramic articles with other articles by heating
    • C04B2237/84—Joining of a first substrate with a second substrate at least partially inside the first substrate, where the bonding area is at the inside of the first substrate, e.g. one tube inside another tube
    • 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
    • F05C2203/00—Non-metallic inorganic materials
    • F05C2203/08—Ceramics; Oxides
    • F05C2203/0865—Oxide ceramics
    • F05C2203/0895—Zirconium oxide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Laminated Bodies (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Description

【発明の詳細な説明】 この発明はアルミニウム合金の表面又は内部に
ジルコニアセラミツクが固着されたジルコニア−
アルミニウム複合体に係わり、詳しくは内燃機関
で使用されるアルミニウム合金製の燃焼室の熱効
率を高めるため、シリンダーヘツド、ピストン、
シリンダーライナー等のエンジン部品の燃焼室側
の少なくとも一部にジルコニアセラミツクが組込
まれたジルコニア−アルミニウム複合体のエンジ
ン部品に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a zirconia ceramic in which zirconia ceramic is fixed to the surface or inside of an aluminum alloy.
In particular, aluminum composites are used to improve the thermal efficiency of aluminum alloy combustion chambers used in internal combustion engines, such as cylinder heads, pistons,
The present invention relates to an engine part made of a zirconia-aluminum composite in which zirconia ceramic is incorporated in at least a part of the combustion chamber side of the engine part such as a cylinder liner.

近年、内燃機関の特にデイーゼルエンジン、２
サイクルエンジン等において、熱効率を高めるた
め断熱性に優れたジルコニアセラミツクをアルミ
ニウム合金に保持して使用する施策がなされてい
る。かかるセラミツクとアルミニウム合金複合体
はアルミニウム合金の熱膨脹を利用した焼嵌等の
嵌合又は鋳込成形等によりジルコニア焼結体を嵌
合する方法で検討すると、ジルコニアとアルミニ
ウム合金との熱膨脹差が大きいため、高温、低温
の繰返しによりセラミツクとアルミニウム合金が
剥れたり接合面に隙間が生じて実用的耐久性を保
持することが困難であつた。 In recent years, internal combustion engines, especially diesel engines,
In cycle engines and the like, measures have been taken to use zirconia ceramic, which has excellent heat insulation properties, in an aluminum alloy to increase thermal efficiency. When examining such a ceramic and aluminum alloy composite using a method of fitting a zirconia sintered body by shrink fitting, etc., or casting, etc., which utilizes the thermal expansion of the aluminum alloy, it is found that there is a large difference in thermal expansion between the zirconia and the aluminum alloy. Therefore, it has been difficult to maintain practical durability due to repeated exposure to high and low temperatures, which causes the ceramic and aluminum alloy to peel off or create gaps at the joint surface.

本発明は上記欠点を解消するためになされたも
ので、ジルコニア焼結体とアルミニウム合金との
間に両者の中間の熱膨張係数を有する耐熱金属リ
ングを介設し、かつジルコニア焼結体と耐熱金属
リングとの間にはジルコニア焼結体の外周に凹凸
部を設けて直接に鑞材によつて鑞接し、両者の強
固な接合及び鑞材による緩衝作用と相まつて耐久
性の優れたジルコニア−アルミニウム合金複合体
のエンジン部品を提供しようとするものである。 The present invention has been made to solve the above-mentioned drawbacks, and includes a heat-resistant metal ring having a thermal expansion coefficient intermediate between the zirconia sintered body and the aluminum alloy, and The outer periphery of the zirconia sintered body has an uneven part and is directly soldered to the metal ring using a solder metal.This combination of strong bonding between the two and the buffering effect of the solder metal results in a highly durable zirconia sintered body. The present invention aims to provide engine parts made of aluminum alloy composites.

以下本発明を図面の実施例によつて説明する。 The present invention will be explained below with reference to embodiments of the drawings.

第１図は本発明の一実施例を示す内燃機関ピス
トンの断面図であり、図中１はアルミニウム合金
から成るピストン本体、２はほゞ円柱状のジルコ
ニア焼結体であり、該焼結体の燃焼室側には必要
に応じてクラウン形状等の凹所２ａが設けられて
いる。３は耐熱金属リングで、その熱膨張係数は
10〜24×10-6／℃のもので、好適にはステンレス
鋼、鋳鉄などであり、例えばSUS304（18.4×
10-6／℃）、ニレジスト（19×10-6／℃）が有用
である。４は銀、銅等から成る鑞材である。本発
明においてはジルコニア焼結体２の外周２ｂに予
め凹凸部２ｃが形成されており、該凹凸部として
は径方の周溝を軸方向に複数設ける小片の凸起ま
たは凹み、ローレツト溝及び簡単なねじ切りなど
を成形時、切削等によつて形成される。又前記ジ
ルコニア焼結体２の外周２ｂと耐熱金属リング３
の嵌合部分は先端側が先細のテーパー状に形成さ
れた構造であつてもよい。 FIG. 1 is a sectional view of an internal combustion engine piston showing one embodiment of the present invention, in which 1 is a piston body made of an aluminum alloy, 2 is a substantially cylindrical zirconia sintered body, and the sintered body A recess 2a having a crown shape or the like is provided on the combustion chamber side as necessary. 3 is a heat-resistant metal ring whose coefficient of thermal expansion is
10 to 24×10 -6 /℃, preferably stainless steel, cast iron, etc. For example, SUS304 (18.4×
10 -6 /°C) and Niresist (19×10 -6 /°C) are useful. 4 is a brazing material made of silver, copper, etc. In the present invention, an uneven portion 2c is formed in advance on the outer periphery 2b of the zirconia sintered body 2, and the uneven portion includes small pieces having a plurality of radial circumferential grooves in the axial direction, small protrusions or depressions, knurling grooves, and simple grooves. It is formed by cutting, etc. during molding such as thread cutting. Further, the outer periphery 2b of the zirconia sintered body 2 and the heat-resistant metal ring 3
The fitting portion may have a tapered structure with the distal end side tapered.

次に本発明のピストンの製造について記すと、
外周２ｂに凹凸部２ｃを有するジルコニア焼結体
２を製作し、この焼結体の外周２ｂに銀鑞板４を
介して耐熱金属リングの嵌合孔に配設し、これを
不活性雰囲気の炉中で加熱され銀鑞付けされる。
この組立体Ａを第１図の如く配し、アルミニウム
合金でダイカストしてピストンを形成するか又は
予めダイカストされたピストン本体１に耐熱金属
リング３の外径よりも僅かに小さい内径の凹部１
ａを穿設して前記組立体Ａを焼嵌によつて嵌着す
る。更には図示を省略するが金属リングの外周に
雄ねじを螺刻し、ピストン本体の凹部にも雌ねじ
を設けて両者を螺着するようにしてもよく、要す
るに両者は公知の手法によつて嵌着される。なお
鋳込成形の場合には金属リング３の外周にアルミ
ニウム合金との嵌合力を保持するため適宜凸部を
形成してもよい。 Next, the production of the piston of the present invention will be described.
A zirconia sintered body 2 having an uneven portion 2c on the outer periphery 2b is manufactured, and the outer periphery 2b of this sintered body is placed in a fitting hole of a heat-resistant metal ring via a silver solder plate 4, and is placed in an inert atmosphere. It is heated in a furnace and soldered with silver.
This assembly A is arranged as shown in FIG. 1, and a piston is formed by die-casting an aluminum alloy, or a recess 1 having an inner diameter slightly smaller than the outer diameter of a heat-resistant metal ring 3 is formed in a piston body 1 that is die-cast in advance.
A is drilled and the assembly A is fitted by shrink fitting. Furthermore, although not shown, a male thread may be carved on the outer periphery of the metal ring, and a female thread may also be provided in the recess of the piston body, so that both may be screwed together.In short, both may be fitted by a known method. be done. In the case of cast molding, a protrusion may be formed on the outer periphery of the metal ring 3 as appropriate to maintain fitting force with the aluminum alloy.

第２図は本発明の他の実施例を示すシリンダー
ヘツドの断面図であり、１１は２サイクルエンジ
ン用単気筒のアルミニウム合金から成るシリンダ
ーヘツド、１２はジルコニア焼結体、１３は前記
焼結体１２の外周１２ｂと嵌合する耐熱金属リン
グ、１４は鑞材である。シリンダーヘツド１１の
燃焼室１５側に凹部１１ａが穿設されており、こ
の凹部内に上記実施例と同様に形成されたジルコ
ニア焼結体１２の外周１２ｂに凹凸部１２ｃを設
け、この外周に耐熱金属リング１３を銀鑞１４を
用いて接合した組立体Ａを焼嵌等によつて嵌着し
たもので形成される。又スパークプラグ１６はジ
ルコニア焼結体１２の燃焼室側壁面１２ａに露出
するプラグ嵌合孔１２ｄが設けられてシリンダー
ヘツド１１に配したプラグ取付ねじ１１６に螺合
して装着されている。 FIG. 2 is a sectional view of a cylinder head showing another embodiment of the present invention, in which 11 is a cylinder head made of aluminum alloy for a single cylinder for a two-stroke engine, 12 is a zirconia sintered body, and 13 is the sintered body. 12 is a heat-resistant metal ring that fits into the outer periphery 12b, and 14 is a solder material. A recess 11a is formed in the combustion chamber 15 side of the cylinder head 11, and an uneven portion 12c is provided on the outer periphery 12b of the zirconia sintered body 12 formed in the same manner as in the above embodiment in the recess. It is formed by fitting an assembly A in which a metal ring 13 is joined using silver solder 14 by shrink fitting or the like. The spark plug 16 is provided with a plug fitting hole 12d exposed in the combustion chamber side wall surface 12a of the zirconia sintered body 12, and is screwed onto a plug mounting screw 116 arranged on the cylinder head 11.

実施例 第１図に示す構造であるジルコニア焼結体２の
外周２ｂに凹凸部２ｃを設けてSUS304の金属リ
ング３にニツケルメツキを施した後、両者を銀鑞
付けした組立体をアルミニウム合金で鋳込成形し
た本発明のピストンＡと、比較品としてジルコニ
ア焼結体の外周に同様な凹凸部を設けてアルミニ
ウム合金で直接鋳込成形したピストンＢを用いて
デイーゼルエンジンの4000rpm×４／４の条件で
耐久テストを実施した結果、比較品のピストンＢ
は10時間以内でジルコニア焼結体とアルミニウム
合金との間に隙間が生じて焼結体が浮き上がるの
に対し、本発明のピストンＡは50時間経過後も隙
間が生じたりクラツクの発生が認められなかつ
た。本発明は上記図面の実施例だけに限定される
ものでなく、シリンダーライナー、副燃焼室及び
口金等にジルコニア焼結体のセラミツクを適用す
る場合にも有用である。Example After providing an uneven portion 2c on the outer periphery 2b of the zirconia sintered body 2 having the structure shown in Fig. 1 and applying nickel plating to the SUS304 metal ring 3, an assembly in which both were silver-brazed was cast with an aluminum alloy. The conditions of 4000 rpm x 4/4 of a diesel engine were used using a cast-molded piston A of the present invention and a comparative piston B, which was directly cast-molded from an aluminum alloy with similar unevenness on the outer periphery of a zirconia sintered body. As a result of the durability test, the comparative piston B
In Piston A of the present invention, a gap is formed between the zirconia sintered body and the aluminum alloy and the sintered body floats within 10 hours, whereas piston A of the present invention shows no gaps or cracks even after 50 hours have elapsed. Nakatsuta. The present invention is not limited to the embodiments shown in the drawings, but is also useful when ceramics of zirconia sintered bodies are applied to cylinder liners, sub-combustion chambers, mouthpieces, etc.

以上の如く、本発明のジルコニア焼結体とアル
ミニウム合金複合体のエンジン部品は中間の熱膨
張係数を有する耐熱金属リングを介し、かつジル
コニア焼結体の外周に凹凸部を設けて鑞材でもつ
て鑞接したことにより、強固に接合力を有し、し
かも熱膨張差を吸収してジルコニアー耐熱金属リ
ング−アルミニウム合金の三者間の嵌合力を保持
し、優れた耐久性を保持することができる。又本
発明はジルコニア焼結体と耐熱金属リングとの接
合がジルコニア焼結体に金属化処理、ガラス塗布
焼付等による接合層を設ける必要がないため、製
造が容易でコスト低減ができる。 As described above, the engine parts made of the zirconia sintered body and the aluminum alloy composite of the present invention are bonded to a heat-resistant metal ring having an intermediate coefficient of thermal expansion, and by providing an uneven portion on the outer periphery of the zirconia sintered body and using a solder material. By soldering, it has a strong bonding force, and also absorbs the difference in thermal expansion to maintain the fitting force between the zirconia heat-resistant metal ring and the aluminum alloy, and maintains excellent durability. . Further, in the present invention, since there is no need to provide a bonding layer on the zirconia sintered body by metallization treatment, glass coating and baking, etc., manufacturing is easy and costs can be reduced.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例を示す内燃機関ピス
トンの断面図、第２図は本発明の他の実施例を示
すシリンダーヘツドの断面図である。 ２，１２…ジルコニア焼結体、２ｂ，１２ｂ…
外周、２ｃ，１２ｃ…凹凸部、３，１３…耐熱金
属リング、４，１４…鑞材。 FIG. 1 is a sectional view of an internal combustion engine piston showing one embodiment of the invention, and FIG. 2 is a sectional view of a cylinder head showing another embodiment of the invention. 2, 12...zirconia sintered body, 2b, 12b...
Outer periphery, 2c, 12c... uneven portion, 3, 13... heat-resistant metal ring, 4, 14... brazing material.

Claims (1)

【特許請求の範囲】[Claims] １ ジルコニア焼結体の外周に凹凸部を設けると
共に該外周に熱膨脹係数が10〜24×10-6／℃の耐
熱金属リングを鑞接して組立体を形成し、この組
立体をアルミニウム合金で鋳込成形するか又はア
ルミニウム合金の凹部に嵌着したことを特徴とす
るジルコニア−アルミニウム合金複合体のエンジ
ン部品。1. An uneven part is provided on the outer periphery of a zirconia sintered body, and a heat-resistant metal ring with a coefficient of thermal expansion of 10 to 24 x 10 -6 /°C is soldered to the outer periphery to form an assembly, and this assembly is cast from an aluminum alloy. An engine part made of a zirconia-aluminum alloy composite, characterized in that it is molded or fitted into a recessed part of an aluminum alloy.
JP3124684A 1984-02-20 1984-02-20 Engine parts of zirconia-aluminum alloy composite body Granted JPS60175752A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP3124684A JPS60175752A (en) 1984-02-20 1984-02-20 Engine parts of zirconia-aluminum alloy composite body
US06/702,736 US4608321A (en) 1984-02-20 1985-02-19 Ceramic and metal composite body
EP85301124A EP0153191A3 (en) 1984-02-20 1985-02-20 Zirconia-metal composite bodies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3124684A JPS60175752A (en) 1984-02-20 1984-02-20 Engine parts of zirconia-aluminum alloy composite body

Publications (2)

Publication Number Publication Date
JPS60175752A JPS60175752A (en) 1985-09-09
JPH0151666B2 true JPH0151666B2 (en) 1989-11-06

Family

ID=12326013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3124684A Granted JPS60175752A (en) 1984-02-20 1984-02-20 Engine parts of zirconia-aluminum alloy composite body

Country Status (1)

Country Link
JP (1) JPS60175752A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6477531A (en) * 1987-09-18 1989-03-23 Daido Ind Assembly of metal holder and ceramics
WO2012144042A1 (en) * 2011-04-21 2012-10-26 トヨタ自動車株式会社 Control device for internal combustion engine

Also Published As

Publication number Publication date
JPS60175752A (en) 1985-09-09

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