JPH0237815B2 - - Google Patents
Info
- Publication number
- JPH0237815B2 JPH0237815B2 JP59047330A JP4733084A JPH0237815B2 JP H0237815 B2 JPH0237815 B2 JP H0237815B2 JP 59047330 A JP59047330 A JP 59047330A JP 4733084 A JP4733084 A JP 4733084A JP H0237815 B2 JPH0237815 B2 JP H0237815B2
- Authority
- JP
- Japan
- Prior art keywords
- metal
- ceramic
- cast
- molded body
- layer
- 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 - Lifetime
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Description
本発明は、金属とセラミツクスとの複合体及び
その製造法に係わり、より詳しくは、鋳造金属内
に多孔質のセラミツクス成型体が埋入されたもの
に関する。
円筒状鋳物において、外表面から内表面への熱
伝導を少なくする必要のある場合、例えば断熱ロ
ーラの外殻として円筒状鋳物を用いる場合、この
外殻の表面と内面との中間に金属より熱伝導率の
小さい材料が鋳ぐるまれておればその要求を満足
することができる。
従来、この種の複合材の製造方法として、金属
を鋳造するときセラミツクス粒子を溶湯金属に懸
濁して鋳造する方法、又セラミツクス粉体中に溶
湯金属を含浸させる方法、セラミツクス繊維の膜
を鋳ぐるむ方法等がある。しかし、大型の製品に
は適用し難く、また量産を前提とした工業的製造
法としても適さない点があつた。
本発明は、上記問題に鑑みなされたものであつ
て、工業的生産性及び品質に優れたセラミツクス
−金属複合鋳断体とその製造法を提供するもので
あり、その特徴とするところは、第１の発明とし
ては、多孔質のセラミツクス成型体の気孔内に金
属材が浸透してなる埋入層と、該埋入層の厚さ方
向の両表面に臨接して形成された金属層とからな
り、前記気孔内の金属材と金属層とが一体的に鋳
造されてなる点、第２の発明としては、複合鋳造
体の形状が円筒状の場合の製造法であつて、遠心
力鋳造用金型内に、該金型の内面と一定間隙を隔
てて多孔質の円筒状セラミツクス成型体を装着
し、溶湯金属を該成型体の内面に注湯し前記間
隔、セラミツクス成型体の空隙及び該成型体の内
面側に溶湯金属を遠心力鋳造する点にある。
以下、本発明の実施例を図面を参照して詳細に
説明する。
第１図，は、本発明の円筒状のセラミツク
ス−金属複合鋳造体１を示し、該鋳造体１はその
外面と内面との中間に、多孔質の円筒状セラミツ
クス成型体が埋入されると共に該成型体の空隙に
鋳造金属が浸透した埋入層２を有し、かつ該埋入
層２の外側、内側には、埋入層２の構造金属と同
種又は異種の鋳造金属で、埋入層２の鋳造金属と
冶金的に一体形成された外層３及び内層４を有し
ている。
セラミツクス成型体の材質は、Al2O3、ZrO2、
BeO、TiC、SiC、TiN、Si3N4等の酸化物、ケ
イ化物、窒化物、金属炭化物、ホウ化物が用いら
れる。また、これらのセラミツクス材は、目的の
断熱性（熱伝導率）、金属とのぬれ性、熱膨張係
数、強度等を考慮して選択される。
セラミツクス成型体の気孔率は20〜80％とし、
気孔径は50mm〜２mm程度にする。20％未満では後
述する鋳造金属の溶湯の浸透が不充分となり、一
方80％を越えると強度不足で取り扱いが難しくま
た断熱効果が少ない。尚、望ましくは30％以上と
する。
また、セラミツクス成型体の肉厚は、製品の直
径にもよるが２〜30mm程度が好ましい。２mm未満
では断熱効果が少なくかつ強度が不足し取り扱い
上難があり、一方30mmを越えると、溶湯金属が全
範囲に亘り浸透し難いからである。
このような多孔質セラミツクス成型体は、ウレ
タンフオームを用いて容易に形成することができ
る。即ち、所望の形状のウレタンフオームに微粒
子状のセラミツクスに水等を混合して作成した泥
状のセラミツクスを浸透・付着させて、乾燥・焼
成して、ウレタンを焼失させて得ることができ
る。また、50mm〜１mmのセラミツクス粒子に熱可
塑性結合剤を混合し、成型・焼成して得る方法も
ある。
セラミツクス成型体の空隙に浸透し、かつ冶金
的に一体化した外層３または内層４に用いる鋳造
金属の材質としては、鋳鉄、鋳鋼、銅合金、アル
ミニウム等の非鉄金属を挙げることができるが、
複合鋳造体の用途、使用目的により適宜選択され
る。例えば、耐熱性の必要な場合は耐熱鋳鋼材
が、耐摩耗性の必要な場合は合金鋳鉄材が、軽さ
の必要な場合はアルミ系合金材が選択される。
また、要求特性によつては、外層３と内層４と
を別種の金属材質で構成してもよく、例えば、外
層３を耐摩耗鋳鉄とし、内層４を耐食性ステンレ
ス鋳鋼とする場合を例示できる。この場合、埋入
層２の鋳造金属の材質としては、外層３又は内層
４のいずれかの金属材質とすればよい。
このように、多孔質のセラミツクス成型体とそ
の空隙に浸透された鋳造金属により構成された埋
入層２は、その外側および内側を所望の鋳造金属
で形成された外層３、内層４とによつて挟まれ、
かつ夫々の鋳造金属が冶金的に一体化されている
ので、セラミツクス成型体２と外層３又は内層４
とは剥離し難くかく複合鋳造体の強度の低下を防
止できる。
第２図は、本発明の第２実施例であり、円筒状
のセラミツクス−金属複合鋳造体５の内部に、円
筒状のセラミツクス成型体に鋳造金属が浸透して
形成された埋入層６が軸方向に断続して配設され
ている。複合鋳造体が長尺であつて、これに埋入
される円筒状セラミツクス成型体を一体で製造す
るのが困難な場合に斯る構造にすればよい。ま
た、複合鋳造体の長さ方向に部分的に断熱性に差
を付けたい場合にも有効である。図中７は外層、
８は内層である。
第３図は、本発明の第３実施例であり、円柱状
のセラミツクス−金属複合鋳造体９を示してい
る。この場合、埋入層１０は、外層１１と中実部
１２との間に形成されている。
第４図は、本発明の第４実施例であり、板状の
セラミツクス−金属複合鋳造体１３を示し、板状
のセラミツクス成型体に鋳造金属が浸透した埋入
層１４の表裏全面に亘り、表層１５と裏層１６と
が形成されている。
第５図は、本発明の第５実施例であり、埋入層
１８が断続状に表層１９と裏層２０との間に配設
された板状のセラミツクス−金属複合鋳造体１７
である。
次に、第１図，に示した本発明のセラミツ
クス−金属複合鋳造体１の製造法につき詳述す
る。
第６図に示すように、遠心力鋳造用金型２１内
に、該金型２１の内面と一定間隙を隔てるべく、
スペーサ２２を適宜介して、予め製作された既述
の円筒状セラミツクス成型体２３を装着し、その
両端を砂型バンド２４で固定する。前記スペーサ
２２は、鋳造金属と同材質のものを使用すること
が好ましい。次に、前記金型２１を所定の回転に
した後、注湯用樋２５から前記成型体２３の内面
に所望の金属溶湯を、必要な肉厚を形成すべく注
湯する。
注湯に際して、セラミツクス成型体２３を500
〜1100℃に予熱しておくことが望ましい。溶湯金
属の該セラミツクス成型体２３への浸透が容易
で、また健全な製品が得られ易いからである。ま
た、注湯時の金型回転数は、外表面でのGNOが大
きくなるほど良好でG100〜G200が適当である。
尤も、装置強度が許すならばそれ以上でもよい。
また、溶湯の鋳込温度は、通常の鋳込温度より高
くした方が、溶湯がセラミツクス成型体２３に浸
透容易となり好適である。
注湯された溶湯は、多孔質のセラミツクス成型
体２３を通り、遠心力鋳造用金型２１とセラミツ
クス成型体２３との間隙に充填されて外層３が形
成され、次に該成型体２３中に万も含浸され埋入
層２が形成され、更に残りの溶湯で内層４が形成
される。
尚、第６図では横型遠心力鋳造法の適用の場合
について説明したが、立型又は傾斜型遠心力鋳造
法でも同様である。
このように溶湯金属の鋳造に際して遠心力鋳造
法を適用すれば、セラミツクス成型体２３の厚
さ、気孔率に応じて、金型回転数を変えるだけで
溶湯の浸透・通過を容易に制御できて好適であ
る。
第４図及び第５図に示す板状のセラミツクス−
金属複合鋳造体１３，１７の製造は、底面が平板
状の箱型金型に、スペーサを介して、予め製作さ
れた板状のセラミツクス成型体を載置し、所望の
溶湯金属を所期の肉厚に形成すべく圧力下で置注
鋳造すればよい。
次に、芸体的実施例を掲げて説明する。
外形φ300×内径φ240mm、肉厚30mmの断熱ローラ
用外殻の製造実施例
１ 外形φ280mm、厚さ７mmのアルミナ製多孔質
セラミツクス成型体（気孔率70〜80％、気孔径
300〜400mm）を遠心力鋳造用金型内にスペーサ
を介してセツトし、その両端を砂型バンドで固
定した後、該金型をGNOで180となるよう回転
させた。
２ 次に、鋳造用金属として下記成分の高クロム
鋳鉄溶湯を通常の鋳込み温度より高くして1510
℃で、前記成型体の内面に鋳込んだ。
The present invention relates to a composite of metal and ceramics and a method for manufacturing the same, and more particularly to a composite in which a porous ceramic molded body is embedded in a cast metal. When it is necessary to reduce heat conduction from the outer surface to the inner surface of a cylindrical casting, for example, when using a cylindrical casting as the outer shell of a heat insulating roller, there is more heat than metal between the surface and inner surface of the outer shell. This requirement can be met if a material with low conductivity is cast. Conventionally, methods for manufacturing this type of composite material include suspending ceramic particles in molten metal when casting metal, impregnating molten metal into ceramic powder, and casting a film of ceramic fibers. There are ways to do this. However, it is difficult to apply to large-sized products, and it is not suitable as an industrial manufacturing method based on mass production. The present invention has been made in view of the above problems, and provides a ceramic-metal composite cast body with excellent industrial productivity and quality, and a method for manufacturing the same. The first invention includes an embedded layer formed by penetrating a metal material into the pores of a porous ceramic molded body, and a metal layer formed adjacent to both surfaces of the embedded layer in the thickness direction. The metal material in the pores and the metal layer are integrally cast, and the second invention is a manufacturing method in which the composite cast body has a cylindrical shape, and the method is for centrifugal casting. A porous cylindrical ceramic molded body is placed in a mold with a certain gap between it and the inner surface of the mold, and molten metal is poured onto the inner surface of the molded body so that the gap, the voids in the ceramic molded body, and the The point is that molten metal is centrifugally cast onto the inner surface of the molded body. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cylindrical ceramic-metal composite cast body 1 of the present invention, in which a porous cylindrical ceramic molded body is embedded between the outer surface and the inner surface of the cast body 1. The molded body has an embedded layer 2 in which a cast metal penetrates into the voids, and a cast metal of the same type or different type as the structural metal of the embedded layer 2 is embedded on the outside and inside of the embedded layer 2. It has an outer layer 3 and an inner layer 4 which are metallurgically integrally formed with the cast metal of layer 2. The materials of the ceramic molded body are Al 2 O 3 , ZrO 2 ,
Oxides, silicides, nitrides, metal carbides, and borides such as BeO, TiC, SiC, TiN, and Si 3 N 4 are used. Further, these ceramic materials are selected in consideration of the desired heat insulation properties (thermal conductivity), wettability with metal, coefficient of thermal expansion, strength, etc. The porosity of the ceramic molded body is 20 to 80%.
The pore diameter should be about 50mm to 2mm. If it is less than 20%, penetration of the molten metal of the cast metal described later will be insufficient, while if it exceeds 80%, it will be difficult to handle due to insufficient strength and the insulation effect will be poor. In addition, it is desirably 30% or more. The wall thickness of the ceramic molded body is preferably about 2 to 30 mm, although it depends on the diameter of the product. If it is less than 2 mm, the heat insulating effect will be low and the strength will be insufficient, making it difficult to handle. On the other hand, if it exceeds 30 mm, it will be difficult for the molten metal to penetrate throughout the area. Such a porous ceramic molded body can be easily formed using urethane foam. That is, it can be obtained by infiltrating and adhering mud-like ceramics prepared by mixing fine particle ceramics with water or the like into a urethane foam having a desired shape, and then drying and firing the foam to burn off the urethane. There is also a method of mixing ceramic particles of 50 mm to 1 mm with a thermoplastic binder, molding and firing the mixture. The material of the cast metal used for the outer layer 3 or inner layer 4, which penetrates into the voids of the ceramic molded body and is metallurgically integrated, may include nonferrous metals such as cast iron, cast steel, copper alloy, and aluminum.
It is selected as appropriate depending on the use and purpose of the composite cast body. For example, heat-resistant cast steel is selected when heat resistance is required, alloy cast iron is selected when wear resistance is required, and aluminum alloy material is selected when lightness is required. Further, depending on the required characteristics, the outer layer 3 and the inner layer 4 may be made of different metal materials. For example, the outer layer 3 may be made of wear-resistant cast iron and the inner layer 4 may be made of corrosion-resistant stainless cast steel. In this case, the material of the cast metal of the embedded layer 2 may be the metal material of either the outer layer 3 or the inner layer 4. In this way, the embedded layer 2, which is composed of a porous ceramic molded body and a cast metal infiltrated into the voids thereof, has an outer layer 3 and an inner layer 4 formed of the desired cast metal on the outside and inside. Trapped,
In addition, since the respective cast metals are metallurgically integrated, the ceramic molded body 2 and the outer layer 3 or inner layer 4
It is difficult to peel off from the composite cast body, thus preventing a decrease in the strength of the composite cast body. FIG. 2 shows a second embodiment of the present invention, in which an embedded layer 6 formed by infiltrating the cylindrical ceramic molded body with a cast metal is formed inside a cylindrical ceramic-metal composite cast body 5. They are arranged intermittently in the axial direction. Such a structure may be used when the composite cast body is long and it is difficult to integrally manufacture the cylindrical ceramic molded body to be embedded therein. It is also effective when it is desired to partially differentiate the heat insulation properties in the longitudinal direction of the composite cast body. 7 in the figure is the outer layer,
8 is the inner layer. FIG. 3 shows a third embodiment of the present invention, and shows a cylindrical ceramic-metal composite cast body 9. As shown in FIG. In this case, the buried layer 10 is formed between the outer layer 11 and the solid part 12. FIG. 4 shows a fourth embodiment of the present invention, and shows a plate-shaped ceramic-metal composite cast body 13, covering the entire front and back surfaces of an embedded layer 14 in which the cast metal has penetrated into the plate-shaped ceramic molded body. A surface layer 15 and a back layer 16 are formed. FIG. 5 shows a fifth embodiment of the present invention, which is a plate-shaped ceramic-metal composite cast body 17 in which embedded layers 18 are disposed intermittently between a surface layer 19 and a back layer 20.
It is. Next, a method for manufacturing the ceramic-metal composite cast body 1 of the present invention shown in FIG. 1 will be described in detail. As shown in FIG. 6, in the centrifugal casting mold 21, in order to keep a certain gap from the inner surface of the mold 21,
The above-described cylindrical ceramic molded body 23 manufactured in advance is attached via a spacer 22 as appropriate, and its both ends are fixed with sand mold bands 24. The spacer 22 is preferably made of the same material as the cast metal. Next, after the mold 21 is rotated to a predetermined value, a desired molten metal is poured into the inner surface of the molded body 23 from the pouring gutter 25 to form the required thickness. When pouring the ceramic molded body 23,
Preheating to ~1100°C is recommended. This is because the molten metal can easily penetrate into the ceramic molded body 23, and a healthy product can be easily obtained. In addition, the mold rotation speed during pouring is better as the G NO on the outer surface increases, and G100 to G200 is appropriate.
However, if the strength of the device permits, it may be larger.
Further, it is preferable that the casting temperature of the molten metal is higher than the normal casting temperature, since the molten metal can more easily penetrate into the ceramic molded body 23. The poured molten metal passes through the porous ceramic molded body 23 and fills the gap between the centrifugal force casting mold 21 and the ceramic molded body 23 to form the outer layer 3, and then into the molded body 23. The molten metal is impregnated to form an embedded layer 2, and the remaining molten metal forms an inner layer 4. Although FIG. 6 describes the application of horizontal centrifugal casting, the same applies to vertical or inclined centrifugal casting. If the centrifugal force casting method is applied when casting molten metal in this way, the penetration and passage of the molten metal can be easily controlled by simply changing the mold rotation speed according to the thickness and porosity of the ceramic molded body 23. suitable. Plate-shaped ceramics shown in Figures 4 and 5
The metal composite castings 13 and 17 are manufactured by placing a prefabricated plate-shaped ceramic molded body in a box-shaped mold with a flat bottom via a spacer, and pouring the desired molten metal into the desired amount. In order to form a thick wall, it may be cast under pressure. Next, an artistic example will be given and explained. Manufacturing example 1 of an outer shell for a heat insulating roller with an outer diameter of φ300 x inner diameter of 240 mm and a wall thickness of 30 mm.Alumina porous ceramic molded body with an outer diameter of φ280 mm and a thickness of 7 mm (porosity: 70-80%, pore diameter)
300 to 400 mm) was set in a centrifugal casting mold via a spacer, and after fixing both ends with sand mold bands, the mold was rotated at G NO of 180°. 2 Next, as a casting metal, high chromium cast iron molten metal with the following components was heated to a temperature higher than the normal casting temperature to 1510
It was cast into the inner surface of the molded body at ℃.
【表】
３ その結果、鋳鋳造体の中間に、前記セラミツ
クス成型体の空隙に溶湯金属が浸透した埋入層
が形成された複合鋳造体が得られた。
以上説明したように、本発明のセラミツクス−
多孔質のセラミツクス成型体の気孔内に金属材が
浸透してなる埋入層と、該埋入層の厚さ方向の両
表面に臨接して形成された金属層とからなり、前
記気孔内の金属材と金属層とが一体的に鋳造され
ているので、セラミツクス成型体の存在により、
断熱性に優れると共にセラミツクス成型体と鋳造
金属とが剥離し難く、又強度的にも優れる。更
に、埋入層の厚さ方向の両表面に臨接して鋳造形
成された金属層により、鋳造体の溶接、加工によ
る組立は、焼ばめ等の施工が容易である。
また、本発明の複合鋳造体の製造法は、遠心力
鋳造用金型内に、該金型の内面と一体間隙を隔て
て多孔質の円筒状セラミツクス成型体を装着し、
溶湯金属を該成型体の内面に注湯し前記間隔、セ
ラミツクス成型体の空隙及び該成型体の内面側に
溶湯金属を遠心力鋳造するので、セラミツクス成
型体の厚さ、気孔率に応じて、前記金型の回転を
変えるだけで容易に鋳造金属の浸透・通過を可能
とすることができ、又工業的生産性に優れる。こ
のように、本発明のセラミツクス−金属複合鋳造
体及びその製造法は、産業上の利用価値及び工業
的生産手段としての価値は著大である。[Table] 3 As a result, a composite cast body was obtained in which an embedded layer in which molten metal penetrated into the voids of the ceramic molded body was formed in the middle of the cast body. As explained above, the ceramics of the present invention
It consists of an embedded layer in which a metal material penetrates into the pores of a porous ceramic molded body, and a metal layer formed adjacent to both surfaces of the embedded layer in the thickness direction, and Since the metal material and the metal layer are integrally cast, the presence of the ceramic molded body
It has excellent heat insulation properties, the ceramic molded body and the cast metal are difficult to separate from each other, and it also has excellent strength. Further, since the metal layers are cast adjacent to both surfaces of the buried layer in the thickness direction, the cast body can be easily assembled by welding and processing such as shrink fitting. Further, the method for manufacturing a composite cast body of the present invention includes mounting a porous cylindrical ceramic molded body in a centrifugal casting mold with an integral gap between the inner surface of the mold and the molded body.
Molten metal is poured onto the inner surface of the molded body and centrifugally cast the molten metal onto the gap, the voids in the ceramic molded body, and the inner surface of the molded body, so depending on the thickness and porosity of the ceramic molded body, By simply changing the rotation of the mold, it is possible to easily allow the cast metal to penetrate and pass through, and it is also excellent in industrial productivity. As described above, the ceramic-metal composite cast body of the present invention and its manufacturing method have great industrial utility value and value as an industrial production means.
第１図，は本発明のセラミツクス−金属複
合鋳造体の第１実施例であつて、第１図は縦断
面図、第１図は横断面図であり、第２図は同第
２実施例の縦断面図、第３図は同第３実施例の横
断面図、第４図は同第４実施例の斜視図、第５図
は同第５実施例の斜視図、第６図は本発明製造法
に係る製造装置の概略を示す断面図である。
１，５，９，１３，１７……セラミツクス−金
属複合鋳造体、２，６，１０，１４，１８……埋
入層、３，７，１１……外層、４，８……内層、
１２……中実部、１５，１９……表層、１６，２
０……裏層、２１……遠心力鋳造用金型、２２…
…スペーサ、２３……セラミツクス成型体、２４
……砂型バンド、２５……注湯用樋。
FIG. 1 shows a first embodiment of a ceramic-metal composite cast body of the present invention, in which FIG. 1 is a longitudinal cross-sectional view, FIG. 1 is a cross-sectional view, and FIG. 2 is a second embodiment of the same. 3 is a cross-sectional view of the third embodiment, FIG. 4 is a perspective view of the fourth embodiment, FIG. 5 is a perspective view of the fifth embodiment, and FIG. 6 is a cross-sectional view of the third embodiment. FIG. 1 is a cross-sectional view schematically showing a manufacturing apparatus according to the invention manufacturing method. 1, 5, 9, 13, 17... Ceramics-metal composite cast body, 2, 6, 10, 14, 18... Buried layer, 3, 7, 11... Outer layer, 4, 8... Inner layer,
12...solid part, 15,19...surface layer, 16,2
0...Back layer, 21...Centrifugal force casting mold, 22...
... Spacer, 23 ... Ceramics molded body, 24
...Sand mold band, 25...Gutter for pouring.
Claims (1)
材が浸透してなる埋入層と、該埋入層の厚さ方向
の両表面に臨接して形成された金属層とからな
り、前記気孔内の金属材と金属層とが一体的に鋳
造されてなることを特徴とするセラミツクス−金
属複合鋳造体。 ２ セラミツクスが金属炭化物、ホウ化物、酸化
物又はケイ化物であり、金属材が鋳鉄、鋳鋼、非
鉄金属又はその合金材である特許請求の範囲第１
項記載のセラミツクス−金属複合鋳造体。 ３ 埋入層の両表面に形成された金属層が異種の
金属材で形成されてなる特許請求の範囲第１項記
載のセラミツクス−金属複合鋳造体。 ４ 多孔質のセラミツクス成型体は、その気孔率
が20〜80％である特許請求の範囲第１項記載のセ
ラミツクス−金属複合鋳造体。 ５ 遠心力鋳造用金型内に、該金型の内面と一定
間隙を隔てて多孔質の円筒状セラミツクス成型体
を装着し、溶湯金属を該成型体の内面に注湯し前
記間隔、セラミツクス成型体の空〓及び該成型体
の内面側に溶湯金属を遠心力鋳造することを特徴
とするセラミツクス−金属複合鋳造体の製造法。[Scope of Claims] 1. An embedded layer in which a metal material penetrates into the pores of a porous ceramic molded body, and a metal layer formed adjacent to both surfaces of the embedded layer in the thickness direction. A ceramic-metal composite cast body, characterized in that the metal material in the pores and the metal layer are integrally cast. 2. Claim 1 in which the ceramic is a metal carbide, boride, oxide, or silicide, and the metal material is cast iron, cast steel, nonferrous metal, or an alloy thereof.
Ceramics-metal composite cast body as described in . 3. The ceramic-metal composite cast body according to claim 1, wherein the metal layers formed on both surfaces of the buried layer are formed of different metal materials. 4. The ceramic-metal composite cast body according to claim 1, wherein the porous ceramic molded body has a porosity of 20 to 80%. 5. A porous cylindrical ceramic molded body is placed in a centrifugal force casting mold with a certain gap from the inner surface of the mold, and molten metal is poured onto the inner surface of the molded body to maintain the above-mentioned gap and form the ceramic. 1. A method for manufacturing a ceramic-metal composite cast body, which comprises centrifugally casting molten metal into the cavity of the body and the inner surface of the molded body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4733084A JPS60191652A (en) | 1984-03-12 | 1984-03-12 | Ceramics-metal composite casting and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4733084A JPS60191652A (en) | 1984-03-12 | 1984-03-12 | Ceramics-metal composite casting and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60191652A JPS60191652A (en) | 1985-09-30 |
| JPH0237815B2 true JPH0237815B2 (en) | 1990-08-27 |
Family
ID=12772217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4733084A Granted JPS60191652A (en) | 1984-03-12 | 1984-03-12 | Ceramics-metal composite casting and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60191652A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH082351Y2 (en) * | 1987-12-02 | 1996-01-24 | 富士重工業株式会社 | Automatic lid locking system for automobiles |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6099474A (en) * | 1983-11-04 | 1985-06-03 | Toyota Motor Corp | Production of composite material member |
-
1984
- 1984-03-12 JP JP4733084A patent/JPS60191652A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60191652A (en) | 1985-09-30 |
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