JPS60228663A - Formation of layer for reinforcing base material - Google Patents

Formation of layer for reinforcing base material

Info

Publication number
JPS60228663A
JPS60228663A JP8202884A JP8202884A JPS60228663A JP S60228663 A JPS60228663 A JP S60228663A JP 8202884 A JP8202884 A JP 8202884A JP 8202884 A JP8202884 A JP 8202884A JP S60228663 A JPS60228663 A JP S60228663A
Authority
JP
Japan
Prior art keywords
layer
base material
composite material
ceramic coating
reinforcing
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
Application number
JP8202884A
Other languages
Japanese (ja)
Other versions
JPH0361754B2 (en
Inventor
Akira Ibuki
伊吹 明
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.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors 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 Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP8202884A priority Critical patent/JPS60228663A/en
Publication of JPS60228663A publication Critical patent/JPS60228663A/en
Publication of JPH0361754B2 publication Critical patent/JPH0361754B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00Pistons 
    • F02F3/10Pistons  having surface coverings
    • F02F3/12Pistons  having surface coverings on piston heads
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/4505Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements characterised by the method of application
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0085Materials for constructing engines or their parts
    • F02F7/0087Ceramic materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05CINDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2253/00Other material characteristics; Treatment of material
    • F05C2253/16Fibres

Abstract

PURPOSE:To improve the mechanical strength of a base material and the peel resistance of ceramics by forming the layer of a composite material on the surface of the base material, exposing ends of fibers contained in the composite material, and forming a ceramic coating layer, on said ends. CONSTITUTION:The layer 2 of the composite material contg. whiskers or fibers for reinforcement is formed on the surface of the base material 1, 5. The surface 2a of the layer 2 is etched by oxidation to expose ends 4 of fibers, and the ceramic coating layer 3 is laminated on the etched surface 2a. The layer 3 is firmly bonded to the base material 1, 5 to improve the mechanical strength of the base material. Since the layer 2 decreases the difference in thermal expansion, the stripping resistance of the ceramics is improved.

Description

【発明の詳細な説明】 [発明の技術分野] 本発明は、アルミ鋳物などの部品を局部的に耐熱、耐摩
耗面で補強する母材の強化層形成方法に係り、特に、強
化層としてのセラミック被覆層の亀裂や剥離を確実に防
止することができる母材の強化層形成方法に関する。
[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for forming a reinforcing layer on a base material for locally reinforcing a component such as an aluminum casting with a heat-resistant and wear-resistant surface. The present invention relates to a method for forming a reinforcing layer on a base material that can reliably prevent cracking and peeling of a ceramic coating layer.

[発明の技術的費用とその問題点] 一般に、自動車部品であるシリンダヘッダや、ピストン
などのように耐熱性、耐摩耗性を局部的に特に要求され
る部品については、その部分のみにセラミック被覆層乃
至被覆膜を形成し、強度的に補強することがすでに研究
乃至実施されている。
[Technical costs of the invention and its problems] Generally, for parts that require heat resistance and wear resistance locally, such as automobile parts such as cylinder headers and pistons, ceramic coating is applied only to those parts. Research and practice have already been carried out on forming layers or coatings to strengthen the material.

この強化層形成方法は、母41である金属表面に、溶射
法などにより、セラミックを直接コーティングするもの
であり、薄い被覆層を幾層も積層して厚(し、特性の向
上を図っている。
This reinforcing layer formation method involves directly coating the metal surface of the base 41 with ceramic using a thermal spraying method, etc., in order to increase the thickness (and improve the properties) by laminating several thin coating layers. .

ところで、この種従来方法にあっては、本来的に接合性
の悪い金属とセラミックとを直接的に接合させているこ
とから、セラミック被覆層に亀裂が発生したり、或いは
これらの熱膨張差に起因して剥離現象が生じたりし、耐
用期間の長い強化層を形成することは非常に困難であっ
た。
By the way, in this type of conventional method, since metal and ceramic, which inherently have poor bonding properties, are directly bonded, cracks may occur in the ceramic coating layer, or due to the difference in thermal expansion between them. As a result, a peeling phenomenon occurs, making it extremely difficult to form a reinforcing layer with a long service life.

[発明の目的] 本発明は、以上のような問題点に着目し、これを有効に
解決すべく創案されたものである。
[Object of the Invention] The present invention focuses on the above-mentioned problems and has been devised to effectively solve the problems.

本発明の目的は、強化層を形成すべき母材の表面に強化
用ウィスカ又は繊維の混入した複合材料層を形成してこ
の!!雑端を露出させ、その後この被着面部にセラミッ
ク被覆層を結合ざVて積層するようにし、もってセラミ
ック被覆層を強固に結合させることができる母材の強化
層形成方法を提供するにある。
An object of the present invention is to form a composite material layer containing reinforcing whiskers or fibers on the surface of a base material on which a reinforcing layer is to be formed. ! To provide a method for forming a reinforcing layer of a base material, in which the loose end is exposed, and then a ceramic coating layer is laminated on the bonding surface, thereby making it possible to firmly bond the ceramic coating layer.

[発明の8λ要] 本発明は、強化用ウィスカ又は繊維が混入された金属系
複合材料が耐熱性、耐摩耗性に優れた特性を有し、その
熱膨張係数がセラミックとアルミニウム合金等との中間
部に位置するという知見を得ることによりなされたもの
で、母材の表面に強化用ウィスカ又は繊維の混入した複
合材料層を形成し、この複合材料層の被着面部を酸化腐
食させてIIH端を露出処理し、爾後、上記複合材料層
の被着面部にセラミック被覆層を結合させて積層するよ
うにしたことを要旨とするものである。
[8λ Essentials of the Invention] The present invention provides that a metal composite material mixed with reinforcing whiskers or fibers has excellent heat resistance and wear resistance, and its thermal expansion coefficient is higher than that of ceramics, aluminum alloys, etc. This method was developed based on the knowledge that the metal is located in the intermediate region, and a composite material layer containing reinforcing whiskers or fibers is formed on the surface of the base material, and the surface to which this composite material layer is adhered is oxidized and corroded. The gist is that the edges are exposed and then a ceramic coating layer is bonded and laminated to the surface to which the composite material layer is adhered.

し発明の実施例] 以下に、本発明方法の実施例を添付図面に基づいて詳)
′1.する。
Examples of the method of the present invention] Examples of the method of the present invention will be described in detail below based on the accompanying drawings.
'1. do.

第1図は、本発明方法により強化層が形成された母材を
示す平面図、第2図は強化層の形成過程を説明するため
の説明図である。
FIG. 1 is a plan view showing a base material on which a reinforcing layer is formed by the method of the present invention, and FIG. 2 is an explanatory view for explaining the process of forming the reinforcing layer.

図中、1は表面を強化すべき母材であり、例えばピスト
ン、シリンダ等の自動車のエンジン部品などが採用され
、金属材料としてはアルミニウム合金、チタン、鉄等が
適用されるが、これらに限定されるものでない。この母
材1の表面に複合材料層2を形成し、更にこの被着面部
にセラミック被覆層3をコーティングして積層している
。上記複合材料はアルミニウム(八β)合金、チタン(
Ti)合金、マグネシウム(Mo )合金、鉄などの母
金属に炭化ケイ素(St C) 、窒化ケイ素(Si 
3 N4 )等の強化用ウィスカまたはSi C。
In the figure, reference numeral 1 indicates the base material whose surface should be strengthened. For example, automobile engine parts such as pistons and cylinders are used, and the metal materials used include aluminum alloy, titanium, iron, etc., but are limited to these. It is not something that can be done. A composite material layer 2 is formed on the surface of this base material 1, and a ceramic coating layer 3 is further coated and laminated on this adhering surface. The above composite materials are aluminum (8β) alloy, titanium (
Silicon carbide (StC), silicon nitride (Si
reinforcing whiskers such as 3N4) or SiC.

AJ!20+などの短m雑或いは長繊維をを混入させて
形成したもので耐熱性、耐摩耗性などの点において非常
に優れた特性を有す。この複合材料層2の被着面部2a
にセラミック被覆層3をコーティングするに際しては、
予め複合材料層2の被着面部2aを酸化腐食させて繊維
端4を露出させておく。これによりmM端4がセラミッ
ク被覆層3中に侵入することとなり、複合材料層2とセ
ラミック被覆層3との機械的接合強度、レラミツク強度
が向コーする。
AJ! It is formed by mixing short m miscellaneous or long fibers such as 20+, and has very excellent properties in terms of heat resistance and abrasion resistance. Adhering surface portion 2a of this composite material layer 2
When coating the ceramic coating layer 3 on the
The adherend surface 2a of the composite material layer 2 is oxidized and corroded in advance to expose the fiber ends 4. As a result, the mm edge 4 penetrates into the ceramic coating layer 3, and the mechanical bonding strength and relative strength between the composite material layer 2 and the ceramic coating layer 3 are reversed.

次に、第2図に基づいて強化層の形成方法を更に詳しく
説明する。
Next, the method for forming the reinforcing layer will be explained in more detail based on FIG.

まず、第2図(a )に示す如く母材1の表面に前述の
複合材料層2を形成する。具体的には、予め成型した複
合材料層2を鋳型内(図示せず)に設置して、これを母
材1で鋳包んで結合させる。
First, as shown in FIG. 2(a), the aforementioned composite material layer 2 is formed on the surface of the base material 1. Specifically, a pre-molded composite material layer 2 is placed in a mold (not shown), and the base material 1 is cast in and bonded to the composite material layer 2.

この際、複合材*jlの母金属は、これが結合される母
材1の金属との関係より決定され、接合の整合性のよい
金属材料を選ぶ。
At this time, the base metal of the composite material *jl is determined based on its relationship with the metal of the base material 1 to which it is bonded, and a metal material with good bonding consistency is selected.

例えば、母材1がアルミニウム合金により構成されてい
るならば、複合材料の母金属も同種のアルミニウム合金
により構成する。
For example, if the base metal 1 is made of an aluminum alloy, the base metal of the composite material is also made of the same kind of aluminum alloy.

また、複合オイ料層2を形成するに際して、鋳造前の鋳
型内の形成すべき複合材料層に相対応する部分に、予め
強化用ウィスカ又は繊維のみを載置形成lノ、そして、
この鋳型内に泪を流し込んで母材の表面に複合材料層2
を一体的に形成するようにしてもよい。この場合、場を
鋳型内へ適宜加圧5− 供給することにより、湯と強化用ウィスカ等との混合を
促進させることができる。
In addition, when forming the composite oil layer 2, only reinforcing whiskers or fibers are placed in advance in a portion of the mold before casting that corresponds to the composite material layer to be formed, and
The tears are poured into this mold and the composite material layer 2 is applied to the surface of the base material.
may be formed integrally. In this case, mixing of the hot water and reinforcing whiskers etc. can be promoted by appropriately pressurizing the field into the mold.

次に第2図(11)に示す如く、母材1の表面に結合さ
れた複合材料層2の被着面部2aを酸化処理して母金属
のみ腐食させて、繊rItt端4のみを適宜長さだけ例
えば数ミリメートル程度だ【プ露出させる。酸化腐食剤
としては塩酸、硫酸のごとき酸或いは水酸化ナトリウム
のごときアルカリでもよく何ら限定されるものでない。
Next, as shown in FIG. 2 (11), the adhering surface 2a of the composite material layer 2 bonded to the surface of the base material 1 is oxidized to corrode only the base metal, and only the fiber rItt end 4 is lengthened appropriately. For example, the distance is about a few millimeters. The oxidizing corrosive agent may be an acid such as hydrochloric acid or sulfuric acid, or an alkali such as sodium hydroxide, but is not limited in any way.

例えば複合材料の母金属がアルミニウム合金の場合には
、酸化腐食剤として水酸化ナトリウム(Na OH)溶
液を使用し、具体的には温度60〜70℃、濃度5%水
酸化ナトリウム水溶液に、複合材料層2の被着面部2a
を2〜3分浸漬させる。尚、酸化腐食剤の濃度、温度、
浸漬時間はそれに限定されない。
For example, when the base metal of the composite material is an aluminum alloy, a sodium hydroxide (NaOH) solution is used as the oxidizing corrosive agent. Adhering surface portion 2a of material layer 2
Soak for 2 to 3 minutes. In addition, the concentration of oxidizing corrosive agent, temperature,
The soaking time is not limited thereto.

この場合、強化用ウィスカ等は耐腐食性が大きいため耐
腐食性の小さい母金属のみが酸化され、繊維端4が数ミ
リメートル露出することになる。
In this case, since reinforcing whiskers and the like have high corrosion resistance, only the base metal with low corrosion resistance is oxidized, and several millimeters of the fiber ends 4 are exposed.

次に、上述の処理により繊維端4の露出された複合材料
層2の被着面部2aに第2図(C)に示6− す如くセラミックを溶射処理し、セラミック被覆層3を
結合さて積層する(図中破線で示す)。これにより、第
1図にも示す如く露出したU&維端4がセラミック被覆
層3中に侵入した状態となり、セラミック被覆m3を複
合材料層2に強固に接合させることができる。従って、
セラミック被覆層3を複合材オ゛≧1層2を介して母材
1側に確実に結合させることかできる。尚、複合材料層
2は前述の如く母材1に鋳包まれているので、これらが
分離することはない。
Next, as shown in FIG. 2(C), ceramic is thermally sprayed onto the adhering surface 2a of the composite material layer 2 exposed at the fiber end 4 by the above-described treatment, and the ceramic coating layer 3 is bonded and laminated. (indicated by the broken line in the figure). As a result, as shown in FIG. 1, the exposed U and fiber ends 4 enter the ceramic coating layer 3, and the ceramic coating m3 can be firmly bonded to the composite material layer 2. Therefore,
The ceramic coating layer 3 can be reliably bonded to the base material 1 through the composite material layer 2. Incidentally, since the composite material layer 2 is cast into the base material 1 as described above, these layers will not separate.

また、セラミック被覆層3と母材1との間に挾まれる如
く形成された複合材料層2の熱膨張係数はセラミックと
fulJlを構成する金属とのそれぞれの熱膨張係数の
ほぼ中間部に位置するため、複合材料層2が母材1とセ
ラミック被覆層3との間に生ずる熱膨張差を緩衝するこ
とになる。従って、レラミック被[)3に大ぎな歪が生
ずることもなく、この強度を可及的に向上させることが
できるばかりでなく耐剥離性も向上させることができる
Further, the thermal expansion coefficient of the composite material layer 2 formed between the ceramic coating layer 3 and the base material 1 is located approximately in the middle of the respective thermal expansion coefficients of the ceramic and the metal constituting the fulJl. Therefore, the composite material layer 2 buffers the difference in thermal expansion that occurs between the base material 1 and the ceramic coating layer 3. Therefore, large distortions do not occur in the Reramic coating 3, and not only the strength can be improved as much as possible, but also the peeling resistance can be improved.

次に、第3図に基づいて、母材としてアルミニウム合金
よりなるピストンヘッドにセラミックよりなる強化層を
形成する場合について説明する。
Next, based on FIG. 3, a case will be described in which a reinforcing layer made of ceramic is formed on a piston head made of an aluminum alloy as a base material.

ピストンヘッドはエンジンにおいて特に耐熱性、耐摩耗
性を要求される部分であり、この部分における強度向上
が大きな課題となっている。
The piston head is a part of an engine that particularly requires heat resistance and wear resistance, and improving the strength of this part is a major issue.

まず、第3図(a )に示す如く、ピストンヘッド部の
平坦面に合致させて所定の厚さをもって成型した前述の
複合材料層2を、アルミニウム合金を母材として鋳包み
、ピストン本体5の外形を形成する。この場合、通常ピ
ストンはアルミニウム合金により構成されるので、接合
の整合性を良好にするため複合材料層2の母金属として
アルミニウム合金を採用するのがよい。また軽量化を目
的とするならば、チタニウム或いはマグネシウム合金な
どを採用してもよい。複合材料層2の厚さは、これに混
入される強化用ウィスカ等が非常に高価なことから結合
強度が低下しない範囲でできるだけ薄くする。
First, as shown in FIG. 3(a), the above-mentioned composite material layer 2, which has been molded to a predetermined thickness and conforms to the flat surface of the piston head, is cast-in with an aluminum alloy as a base material, and the piston body 5 is formed. Form the external shape. In this case, since the piston is usually made of an aluminum alloy, it is preferable to use an aluminum alloy as the base metal of the composite material layer 2 in order to improve the integrity of the joint. Furthermore, if the purpose is to reduce the weight, titanium or magnesium alloy may be used. The thickness of the composite material layer 2 is made as thin as possible without reducing the bonding strength since reinforcing whiskers and the like mixed therein are very expensive.

次に上述の如くピストンヘッド部に鋳包/vだ上記複合
材料層2の上面である被着面部2aを例えば前)ホと同
様なNa0l−l溶液に浸漬して酸化腐食させ、第3図
(b)に示す如<mtitt端4を露出さぜる。この露
出した繊維端4の長さはこれに被覆されることになるセ
ラミックの厚さにより決定され、例えば数ミリメートル
程度とする。酸化腐食剤の種類、濃度、温度、浸漬時間
等は複合材料層2の母金属に依存して適宜最適なものを
選定する。
Next, as described above, the top surface of the composite material layer 2, which is the adhering surface 2a, is immersed in the same Na0l-l solution as in (a) above for oxidative corrosion, as shown in FIG. Expose the mtitt end 4 as shown in (b). The length of this exposed fiber end 4 is determined by the thickness of the ceramic to be coated thereon, and is, for example, on the order of several millimeters. The type, concentration, temperature, immersion time, etc. of the oxidizing corrosive agent are appropriately selected depending on the base metal of the composite material layer 2.

次に、IJiM端4の露出した複合材料層2の表面であ
る被着面部2aにセラミックコーティング処理を施し、
セラミック被覆層3を結合させて積層し、第3図(C)
に示す如くピストンを完成する。
Next, a ceramic coating treatment is applied to the adherend surface portion 2a, which is the exposed surface of the composite material layer 2 at the IJiM end 4,
The ceramic coating layer 3 is bonded and laminated, as shown in FIG. 3(C).
Complete the piston as shown.

尚、第3図(C)はピストンの拡大図を示す。Incidentally, FIG. 3(C) shows an enlarged view of the piston.

これにより、複合材料層3とセラミック被覆層2とが強
固に結合され、セラミック被覆層2をピストン本体側へ
強固に結合させることができ、亀裂発生の防止、耐剥離
性の向上を図ることができる。
As a result, the composite material layer 3 and the ceramic coating layer 2 are firmly bonded, and the ceramic coating layer 2 can be firmly bonded to the piston body side, thereby preventing cracking and improving peeling resistance. can.

従って、上述の方法をピストンの強化層形成方法に採用
することによりピストンの耐熱性、耐摩耗性及び耐久性
を可及的に向上させることができ一〇− る。
Therefore, by employing the above-mentioned method for forming a reinforcing layer of a piston, the heat resistance, wear resistance, and durability of the piston can be improved as much as possible.

尚、上記実施例にあっては、強化層であるセラミック被
覆層をピストンヘッドに結合させる場合について説明し
たが、これに限定されるものでなくセラミック強化層を
形成するどのような部材にも適用し得る。
In addition, in the above embodiment, the case where the ceramic coating layer which is a reinforcing layer is bonded to the piston head has been described, but the present invention is not limited to this and can be applied to any member forming a ceramic reinforcing layer. It is possible.

また、複合材1!!1層を母材に鋳包むに際しても、母
材に鋳包まれることになる複合材料層の面部を予め前述
したと同様に酸化腐食処理して繊#II喘を露出させて
おくことにより、母材と複合材料層との結合強度も向上
させることができる。
Also, composite material 1! ! When casting one layer into the base material, the surface of the composite material layer to be cast into the base material is treated with oxidation and corrosion in the same manner as described above to expose the fiber #II. The bond strength between the material and the composite material layer can also be improved.

[発明の効果] 以上要するに、本発明によれば次のような優れた効果を
発揮することができる。
[Effects of the Invention] In summary, according to the present invention, the following excellent effects can be achieved.

(1) 繊維端の露出された複合材料層の被着面部にセ
ラミック被覆層を形成するようにしたので、この被覆層
を母材に強固に結合させることができ、機械的強度を向
上させて亀裂発生の防止を図ることができる。
(1) Since a ceramic coating layer is formed on the adhered surface of the composite material layer where the fiber ends are exposed, this coating layer can be firmly bonded to the base material, improving mechanical strength. It is possible to prevent the occurrence of cracks.

(2) また、複合材料の熱膨張係数は母材とセラミ1
0− ツクの熱膨張係数の中間部に位置するので、熱膨張差を
吸収してセラミックの耐剥離性を向−トさせることがで
きる。
(2) Also, the coefficient of thermal expansion of the composite material is that of the base material and the ceramic 1
Since it is located in the middle of the coefficient of thermal expansion between 0 and 1, it can absorb the difference in thermal expansion and improve the peeling resistance of the ceramic.

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

第1図は本発明方法によりセラミック強化層が形成され
た母材を示す平面図、第2図は強化層の形成過程を説明
するだめの説明図、第3図は母材としてピストンに強化
層を形成する過程を説明するだめの説明図である。 尚、図中、1は母材、2は複合材料層、2aは被着面部
、3はセラミック被覆層、4は繊維端である。 特許出願人 いすダ自動車株式会社 代理人弁理士 絹 谷 信 雄 11− 第1図 第2図 第3図
Fig. 1 is a plan view showing a base material on which a ceramic reinforcement layer is formed by the method of the present invention, Fig. 2 is an explanatory diagram for explaining the process of forming the reinforcement layer, and Fig. 3 is a reinforcement layer on the piston as the base material. FIG. In addition, in the figure, 1 is a base material, 2 is a composite material layer, 2a is an adhering surface part, 3 is a ceramic coating layer, and 4 is a fiber end. Patent applicant Nobuo Kinuya 11, Patent attorney representing Isuda Motors Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 母材の表面に強化層を形成するに際して、上記母材の表
面に、強化用ウィスカ又は繊維の混入した複合月利層を
形成し、該複合材1′31層の被着面部を酸化腐食させ
て繊維端を露出処理し、爾摂、上記複合月利層の被着面
部にセラミック被覆層を結合させて積層するようにした
ことを特徴とする母材の強化層形成方法。
When forming a reinforcing layer on the surface of the base material, a composite layer containing reinforcing whiskers or fibers is formed on the surface of the base material, and the adhering surface of the composite layer 1'31 is oxidized and corroded. A method for forming a reinforcing layer on a base material, characterized in that the fiber ends are subjected to exposure treatment, and then a ceramic coating layer is bonded and laminated to the adhering surface of the composite monthly layer.
JP8202884A 1984-04-25 1984-04-25 Formation of layer for reinforcing base material Granted JPS60228663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8202884A JPS60228663A (en) 1984-04-25 1984-04-25 Formation of layer for reinforcing base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8202884A JPS60228663A (en) 1984-04-25 1984-04-25 Formation of layer for reinforcing base material

Publications (2)

Publication Number Publication Date
JPS60228663A true JPS60228663A (en) 1985-11-13
JPH0361754B2 JPH0361754B2 (en) 1991-09-20

Family

ID=13763069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8202884A Granted JPS60228663A (en) 1984-04-25 1984-04-25 Formation of layer for reinforcing base material

Country Status (1)

Country Link
JP (1) JPS60228663A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6293360A (en) * 1985-10-17 1987-04-28 Toyota Motor Corp Formation of thermally sprayed layer
JPS63150454A (en) * 1986-12-15 1988-06-23 Isuzu Motors Ltd Composite material piston and manufacture thereof
JPS6445780A (en) * 1987-08-12 1989-02-20 Shinagawa Refractories Co Method for bonding material having different thermal expansion coefficients
JPH02270954A (en) * 1989-04-10 1990-11-06 Ishikawajima Harima Heavy Ind Co Ltd Formed body
JPH08508235A (en) * 1993-04-30 1996-09-03 フォスター ミラー インコーポレーテッド Reinforcement joint for composite structure and joining method of composite parts
WO2014112562A1 (en) * 2013-01-17 2014-07-24 日本発條株式会社 Composite material and manufacturing method for composite material
CN105441860A (en) * 2015-11-12 2016-03-30 广东电网有限责任公司电力科学研究院 Novel SiC whisker reinforced gas turbine blade composite coating and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6293360A (en) * 1985-10-17 1987-04-28 Toyota Motor Corp Formation of thermally sprayed layer
JPS63150454A (en) * 1986-12-15 1988-06-23 Isuzu Motors Ltd Composite material piston and manufacture thereof
JPS6445780A (en) * 1987-08-12 1989-02-20 Shinagawa Refractories Co Method for bonding material having different thermal expansion coefficients
JPH0466832B2 (en) * 1987-08-12 1992-10-26 Shinagawa Refractories Co
JPH02270954A (en) * 1989-04-10 1990-11-06 Ishikawajima Harima Heavy Ind Co Ltd Formed body
JPH08508235A (en) * 1993-04-30 1996-09-03 フォスター ミラー インコーポレーテッド Reinforcement joint for composite structure and joining method of composite parts
WO2014112562A1 (en) * 2013-01-17 2014-07-24 日本発條株式会社 Composite material and manufacturing method for composite material
JP2014136383A (en) * 2013-01-17 2014-07-28 Nhk Spring Co Ltd Composite material and method for manufacturing the same
CN105441860A (en) * 2015-11-12 2016-03-30 广东电网有限责任公司电力科学研究院 Novel SiC whisker reinforced gas turbine blade composite coating and preparation method thereof

Also Published As

Publication number Publication date
JPH0361754B2 (en) 1991-09-20

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