JPH11264032A - Production of metal-ceramics composite material for casting - Google Patents
Production of metal-ceramics composite material for castingInfo
- Publication number
- JPH11264032A JPH11264032A JP8244698A JP8244698A JPH11264032A JP H11264032 A JPH11264032 A JP H11264032A JP 8244698 A JP8244698 A JP 8244698A JP 8244698 A JP8244698 A JP 8244698A JP H11264032 A JPH11264032 A JP H11264032A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- composite material
- metal
- casting
- ceramic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 48
- 239000000919 ceramic Substances 0.000 title claims abstract description 45
- 238000005266 casting Methods 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 59
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 18
- 229910018134 Al-Mg Inorganic materials 0.000 claims abstract description 14
- 229910018467 Al—Mg Inorganic materials 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 239000012779 reinforcing material Substances 0.000 claims abstract description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 4
- 230000035515 penetration Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 229910018404 Al2 O3 Inorganic materials 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-UHFFFAOYSA-N 0.000 description 2
- LFYJSSARVMHQJB-QIXNEVBVSA-N bakuchiol Chemical compound CC(C)=CCC[C@@](C)(C=C)\C=C\C1=CC=C(O)C=C1 LFYJSSARVMHQJB-QIXNEVBVSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000005495 investment casting Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 239000003961 penetration enhancing agent Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- -1 ductility Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、金属に強化材を複
合させる金属−セラミックス複合材料の製造方法に関
し、特に鋳造用の金属−セラミックス複合材料の製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a metal-ceramic composite material in which a metal is combined with a reinforcing material, and more particularly to a method for producing a metal-ceramic composite material for casting.
【０００２】[0002]
【従来の技術】セラミックス繊維または粒子で強化され
たセラミックスと金属の複合材料は、セラミックスと金
属の両方の特性を兼ね備えており、例えばこの複合材料
は、高剛性、低熱膨張性、耐摩耗性等のセラミックスの
優れた特性と、延性、高靱性、高熱伝導性等の金属の優
れた特性を備えている。このように、従来から難しいと
されていたセラミックスと金属の両方の特性を備えてい
るため、機械装置メーカ等の業界から次世代の材料とし
て注目されている。2. Description of the Related Art A ceramic-metal composite material reinforced with ceramic fibers or particles has both characteristics of ceramic and metal. For example, this composite material has high rigidity, low thermal expansion property, abrasion resistance, etc. It has the excellent properties of ceramics and the excellent properties of metals such as ductility, high toughness, and high thermal conductivity. As described above, since it has both the characteristics of ceramics and metal, which have been considered difficult, it has been drawing attention as a next-generation material from industries such as mechanical device manufacturers.
【０００３】この複合材料、特に金属としてアルミニウ
ムをマトリックスとする複合材料の製造方法は、粉末冶
金法、高圧鋳造法、真空鋳造法等の方法が従来から知ら
れている。しかし、これらの方法は、強化材であるセラ
ミックスの含有量を多くできない、あるいは大型の加圧
装置が必要である、もしくはニアネット成形が困難であ
る、コストが極めて高いなどの理由により、いずれも満
足できるものではなかった。As a method for producing this composite material, particularly a composite material using aluminum as a matrix as a metal, methods such as powder metallurgy, high pressure casting, and vacuum casting have been conventionally known. However, all of these methods are not capable of increasing the content of ceramics as a reinforcing material, require a large-sized pressurizing device, are difficult to form near nets, and are extremely expensive. It was not satisfactory.
【０００４】そこで最近では、上記問題を解決する製造
方法として、米国ランクサイド社が開発した非加圧金属
浸透法が特に注目されている。この方法は、ＳｉＣやＡ
ｌ2Ｏ3などのセラミックス粉末で形成されたプリフォー
ムに、Ｍｇを含むアルミニウムインゴットを接触させ、
これをＮ2雰囲気中で７００〜９００℃に加熱して溶融
したアルミニウム合金をプリフォームに含浸させる方法
である。これは、ＭｇとＮ2との化学反応を利用してセ
ラミックス粉末への溶融金属の濡れ性を改善することに
より、加圧しなくても金属をプリフォームに含浸できる
ようにした優れた方法である。Accordingly, recently, a non-pressurized metal infiltration method developed by Rankside Company of the United States has attracted particular attention as a manufacturing method for solving the above problem. This method uses SiC or A
An aluminum ingot containing Mg is brought into contact with a preform formed of a ceramic powder such as l 2 O 3 ,
This is a method in which the preform is impregnated with a molten aluminum alloy by heating the same to 700 to 900 ° C. in an N 2 atmosphere. This is an excellent method in which the preform can be impregnated with metal without applying pressure by improving the wettability of the molten metal to the ceramic powder by utilizing the chemical reaction between Mg and N 2. .
【０００５】そして、この製造方法で作製した複合材料
をさらに溶融し、それを融解アルミニウム合金で鋳造可
能なまで希釈する鋳造用の金属−セラミックス複合材料
の製造方法も提案されている。この方法で作製された鋳
造用の複合材料は、それを再溶融し、鋳型に鋳込むこと
でさらなる大型品やより複雑な形状品の複合材料を作製
することができる。その鋳造には、砂型／金型を用いた
重力鋳造、ロストワックスに代表される精密鋳造、ダイ
キャストなど、一般にアルミニウム鋳造に使われる鋳造
方法であれば、ほとんど可能である。[0005] A method for producing a metal-ceramic composite material for casting has been proposed in which the composite material produced by this production method is further melted and diluted until it can be cast with a molten aluminum alloy. The composite material for casting produced by this method can be re-melted and cast into a mold to produce a composite material having a larger product or a more complicated shape. For the casting, almost any casting method generally used for aluminum casting, such as gravity casting using a sand mold / die, precision casting typified by lost wax, and die casting, can be used.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、この鋳
造用の金属−セラミックス複合材料の製造では、金属の
浸透を促進するため浸透促進材が使われていて、その浸
透促進材には２５０μｍ以下のＭｇ粉末が使われている
が、そのＭｇ粉末は国内では入手が極めて困難という問
題があった。それは、２５０μｍ以下の微細なＭｇ粉末
は、爆発し易いため、ほとんど市販されていないためで
ある。これを入手し易いように粗いものにすると、複合
材料にメタルスポットと呼ばれる金属状の斑点が生じ、
不良となってしまう。However, in the production of the metal-ceramic composite material for casting, a penetration enhancer is used to promote the penetration of metal, and the penetration enhancer contains Mg of 250 μm or less. Although powder is used, there is a problem that the Mg powder is extremely difficult to obtain in Japan. This is because fine Mg powder of 250 μm or less is hardly available on the market because it is easy to explode. If this is made coarse so that it can be easily obtained, metal-like spots called metal spots occur in the composite material,
It will be bad.
【０００７】本発明は、上述した鋳造用金属−セラミッ
クス複合材料の製造方法が有する課題に鑑みなされたも
のであって、その目的は、Ｍｇ粉末を用いなくてもそれ
と同等の効果を有する浸透促進材を用いることのできる
鋳造用金属−セラミックス複合材料の製造方法を提供す
ることにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the method for producing a metal-ceramic composite material for casting, and has as its object the purpose of promoting permeation having the same effect without using Mg powder. It is an object of the present invention to provide a method for producing a metal-ceramic composite material for casting in which a material can be used.
【０００８】[0008]
【課題を解決するための手段】本発明者等は、上記目的
を達成するため鋭意研究した結果、Ｍｇ粉末の替わりに
Ａｌ−Ｍｇ合金粉末を用いれば、Ｍｇ粉末と同等の促進
効果があるとの知見を得て本発明を完成するに至った。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, it has been found that the use of Al-Mg alloy powder instead of Mg powder has the same accelerating effect as Mg powder. With the knowledge described above, the present invention has been completed.
【０００９】即ち本発明は、（１）強化材であるセラミ
ックス粉末に基材であるアルミニウム合金を浸透させて
作製した金属−セラミックス複合材料を溶融し、それを
融解したアルミニウム合金で希釈する鋳造用金属-セラ
ミックス複合材料の製造方法において、該セラミックス
粉末が、Ａｌ2Ｏ3、ＳｉＣ、ＡｌＮなどのセラミックス
粉末に、Ａｌ−Ｍｇ合金粉末をＭｇ換算で０．５〜６．
０重量％加えた粉末であることを特徴とする鋳造用金属
−セラミックス複合材料の製造方法（請求項１）とし、
また、（２）Ａｌ−Ｍｇ合金粉末の細かさが、平均粒径
で５〜２５０μｍであることを特徴とする請求項１記載
の鋳造用金属−セラミックス複合材料の製造方法（請求
項２）とすることを要旨とする。以下さらに詳細に説明
する。That is, the present invention provides (1) a casting method for melting a metal-ceramic composite material produced by infiltrating a ceramic powder as a reinforcing material with an aluminum alloy as a base material and diluting the composite with a molten aluminum alloy. In the method for producing a metal-ceramic composite material, the ceramic powder is a ceramic powder such as Al 2 O 3 , SiC, or AlN, and the Al—Mg alloy powder is 0.5 to 6.
A method for producing a metal-ceramics composite material for casting, characterized in that the powder is 0% by weight added;
(2) The method for producing a metal-ceramic composite material for casting according to claim 1, wherein the fineness of the Al-Mg alloy powder is 5 to 250 µm in average particle size. The point is to do. This will be described in more detail below.
【００１０】上記製造方法としては、用いるセラミック
ス粉末を、Ａｌ2Ｏ3、ＳｉＣ、ＡｌＮなどのセラミック
ス粉末に、Ａｌ−Ｍｇ合金粉末をＭｇ換算で０．５〜
６．０重量％加えた粉末とする製造方法とした（請求項
１）。Ｍｇ粉末に替えてＡｌ−Ｍｇ粉末としたのは、こ
の合金粉末が爆発の危険性がなく入手し易く、しかもＭ
ｇ粉末と同等の効果が得られ、さらにはアルミニウムマ
トリックス中に溶け込み問題ないことなどによる。In the above-mentioned production method, the ceramic powder to be used is a ceramic powder such as Al 2 O 3 , SiC, AlN, etc.
A method for producing a powder to which 6.0% by weight was added (claim 1). The reason that the Al-Mg powder was used instead of the Mg powder was that this alloy powder was easily available without the danger of explosion.
The effect is equivalent to that of g powder, and furthermore, there is no problem of dissolving in the aluminum matrix.
【００１１】その合金粉末の細かさとしては、平均粒径
で５〜２５０μｍとした（請求項２）。合金粉末の細か
さは、粗くてもＭｇ粉末のようなメタルスポットの発生
は認められないので、複合材料を作製する上で合金粉末
の細かさによる問題が生じなければ特に限定するもので
はないが、セラミックス粉末への均一な分散性を考える
と５〜２５０μｍが好ましい。The fineness of the alloy powder is 5 to 250 μm in average particle size. Although the fineness of the alloy powder is not particularly limited as long as there is no problem due to the fineness of the alloy powder in producing a composite material, the generation of metal spots like Mg powder is not recognized even if it is coarse. Considering uniform dispersibility in ceramic powder, the thickness is preferably 5 to 250 μm.
【００１２】その加える量としては、Ｍｇ換算で０．５
〜６．０重量％が好ましく、０．５重量％より少ない
と、金属の浸透速度が遅くなり、逆に６．０重量％より
多いと、浸透速度が早すぎるためか、浸透速度にムラが
生じて浸透しなかった部分が発生し、複合材料の内部に
未浸透部分が生じる。The amount to be added is 0.5 in terms of Mg.
If it is less than 0.5% by weight, the penetration rate of the metal will be slow. Conversely, if it is more than 6.0% by weight, the penetration rate will be too fast or the penetration rate will be uneven. The resulting non-infiltrated portions are generated, and the unpermeated portions are generated inside the composite material.
【００１３】浸透させるアルミニウム合金としては、希
釈するアルミニウム合金と必ずしも同じ組成を有する合
金である必要はない。但し、セラミックス粉末がＳｉＣ
の場合には、合金中にＳｉ成分が必ず含まれていなけれ
ばならない。その理由は、浸透時に溶融アルミニウムと
ＳｉＣとが反応して炭化アルミニウム（Ａｌ4Ｃ3）が生
成し、その炭化アルミニウムが空気中の水分と反応して
容易に水酸化アルミニウムに変わり、欠陥となるので、
Ｓｉを含ませることにより、その生成を防止するためで
ある。その量としては、複合材料中のＳｉの含有量が合
金に対し８重量％以上となるよう合金中のＳｉ量を調整
することが望ましい。[0013] The aluminum alloy to be permeated does not necessarily need to be an alloy having the same composition as the aluminum alloy to be diluted. However, the ceramic powder is SiC
In the case of (1), the alloy must contain the Si component without fail. The reason is that molten aluminum and SiC react at the time of infiltration to produce aluminum carbide (Al 4 C 3 ), and the aluminum carbide reacts with moisture in the air to easily change to aluminum hydroxide and become a defect. So
This is for preventing generation of Si by including Si. As the amount, it is desirable to adjust the amount of Si in the alloy so that the content of Si in the composite material is 8% by weight or more with respect to the alloy.
【００１４】一方の希釈用のアルミニウム合金としても
Ｓｉが含まれている方が望ましい。それは、溶湯の流動
性がよいこと、鋳造し易く、かつ鋳造割れ等の不良が発
生し難いことなどによる。その希釈する量としては、望
みの粉末充填率になるよう適宜の量とすればよい。希釈
時の攪拌方法／条件は、極めて重要な因子となる。すな
わち、セラミックス粒子の分離を防ぎ、十分な分散を維
持できるほどの攪拌速度が必要であるが、それによって
溶湯中に気泡を巻き込んではならない。実験を十分行っ
て攪拌条件を慎重に決めることが必要である。希釈され
た溶湯物はそのまま鋳造し、目的の複合材料を作製して
もよいし、一旦インゴット形状に形成し、それを再度溶
融して目的の複合材料を作製してもよい。It is desirable that one of the aluminum alloys for dilution also contains Si. This is because the fluidity of the molten metal is good, casting is easy, and defects such as casting cracks are unlikely to occur. The amount of dilution may be an appropriate amount so as to obtain a desired powder filling rate. The stirring method / condition at the time of dilution is a very important factor. That is, the stirring speed must be high enough to prevent separation of the ceramic particles and maintain a sufficient dispersion, but air bubbles must not be entrained in the molten metal. It is necessary to conduct experiments well and to determine the stirring conditions carefully. The diluted molten material may be cast as it is to produce a target composite material, or may be once formed into an ingot shape and then melted again to produce a target composite material.
【００１５】[0015]
【発明の実施の形態】本発明の製造方法をさらに詳しく
述べると、先ず強化材としてＳｉＣ、Ａｌ2Ｏ3、ＡｌＮ
などのセラミックス粉末を用意する。これに５〜２５０
μｍの平均粒径を有するＡｌ−Ｍｇ合金粉末をＭｇ換算
で０．５〜６．０重量％加え、混合する。得られた混合
粉末を容器内に充填し、その上にアルミニウム合金のイ
ンゴットを載せ、窒素雰囲気中で非加圧で７００〜１０
００℃の温度でアルミニウム合金を浸透させ、冷却して
複合材料を作製する。DETAILED DESCRIPTION OF THE INVENTION The production method of the present invention will be described in more detail. First, SiC, Al 2 O 3 , AlN
Prepare ceramic powder such as. 5 to 250
An Al-Mg alloy powder having an average particle size of μm is added and mixed in an amount of 0.5 to 6.0% by weight in terms of Mg. The obtained mixed powder is filled in a container, an ingot of an aluminum alloy is placed thereon, and 700 to 10
The aluminum alloy is infiltrated at a temperature of 00 ° C. and cooled to produce a composite material.
【００１６】得られた複合材料を坩堝内で所定温度で再
溶融し、それに別に融解したアルミニウム合金を所定量
加え、攪拌機で十分攪拌して希釈する。所定量の複合材
料と先のアルミニウム合金のインゴットを坩堝内に入
れ、これらを所定温度で溶融した後、攪拌機で攪拌して
も問題ない。これを冷却して鋳造用の金属−セラミック
ス複合材料を作製し、これをさらに再溶融して鋳造すれ
ば、複雑形状品などの所望の複合材料が得られる。もし
くは冷却しないでそのまま鋳造しても所望の複合材料が
得られる。The obtained composite material is re-melted in a crucible at a predetermined temperature, a predetermined amount of a separately melted aluminum alloy is added thereto, and the mixture is sufficiently stirred and diluted with a stirrer. There is no problem even if a predetermined amount of the composite material and the ingot of the above aluminum alloy are put in a crucible, melted at a predetermined temperature, and then stirred by a stirrer. This is cooled to produce a metal-ceramic composite material for casting, which is further re-melted and cast to obtain a desired composite material such as a complex-shaped product. Alternatively, a desired composite material can be obtained by casting without cooling.
【００１７】以上の方法で鋳造用の金属−セラミックス
複合材料を作製すれば、Ｍｇ粉末を用いて作製したのと
同等の鋳造用の金属−セラミックス複合材料が得られ
る。When a metal-ceramic composite material for casting is produced by the above method, a metal-ceramic composite material for casting equivalent to that produced using Mg powder can be obtained.
【００１８】[0018]
【実施例】以下、本発明の実施例を比較例と共に具体的
に挙げ、本発明をより詳細に説明する。EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples of the present invention and Comparative Examples.
【００１９】（実施例１〜４） （１）複合材料の作製 強化材として平均粒径が１５μｍの市販ＳｉＣ粉末に、
平均粒径が１５０μｍのＡｌ−Ｍｇ（Ａｌ：Ｍｇ＝４：
６）をＭｇ換算で実施例の順序に従ってそれぞれ０．
５、１．０、２．０、３．０重量％添加し、Ｖ型混合機
で１５分混合した。得られた混合粉末をそれぞれ２００
×２００×深さ２００ｍｍのグラフォイル製の容器に充
填した後、その上に混合粉末の１．２倍量のアルミニウ
ム合金（Ａｌ−１０Ｓｉ）のインゴットを置き、電気炉
にセットした。これをＮ2気流中で７９０℃の温度で１
２時間保持し、アルミニウム合金を非加圧浸透させた
後、冷却して複合材料を作製した。(Examples 1 to 4) (1) Preparation of Composite Material A commercially available SiC powder having an average particle size of 15 μm was used as a reinforcing material.
Al—Mg having an average particle size of 150 μm (Al: Mg = 4:
6) was converted to Mg in the order of Examples, respectively.
5, 1.0, 2.0, and 3.0% by weight were added and mixed with a V-type mixer for 15 minutes. Each of the obtained mixed powders was 200
After filling into a graphoil container having a size of 200 mm and a depth of 200 mm, an ingot of an aluminum alloy (Al-10Si) 1.2 times the amount of the mixed powder was placed thereon, and set in an electric furnace. This is heated at a temperature of 790 ° C. in a stream of N 2 for 1 hour.
After holding for 2 hours and allowing the aluminum alloy to permeate without pressure, the mixture was cooled to produce a composite material.
【００２０】（２）鋳造用複合材料の作製 得られた複合材料と先のアルミニウム合金のインゴット
とを鋳造用複合材料中のＳｉＣ粉末の充填率が３０ｖｏ
ｌ％となるよう所定量坩堝内に入れ、それを６１０℃の
温度で溶融し、２時間攪拌して鋳造用複合材料の溶湯を
作製した。その溶湯物を冷却せずに７２０℃に上げてさ
らに攪拌し、それを砂型に鋳造してその鋳造物を評価に
供した。(2) Preparation of Composite Material for Casting The obtained composite material and the ingot of the aluminum alloy were filled with 30% of SiC powder in the composite material for casting.
A predetermined amount was placed in a crucible so as to be 1%, which was melted at a temperature of 610 ° C., and stirred for 2 hours to prepare a molten metal of a composite material for casting. The melt was raised to 720 ° C. without cooling and further stirred, cast into a sand mold, and the cast was evaluated.
【００２１】（３）評価 得られた鋳造物の嵩密度をアルキメデス法で測定し、粉
末充填率を求めた。その結果、粉末充填率は、３０ｖｏ
ｌ％で目標通り希釈されていた。また、鋳造物を切断
し、その切断面を目視で観察してＳｉＣ粉末の分散状況
を調べた。その結果、ＳｉＣ粉末が問題なく分散されて
いて、ポアや未浸透部、あるいはメタルスポットなどの
欠陥もなかった。このことは、Ａｌ−Ｍｇ合金粉末がＭ
ｇ粉末と同等の働きをなし、ＳｉＣ粉末への濡れ性を良
好にしていることを示している。(3) Evaluation The bulk density of the obtained casting was measured by the Archimedes method to determine the powder filling rate. As a result, the powder filling rate is 30 vo
Diluted as desired at 1%. Further, the casting was cut, and the cut surface was visually observed to check the dispersion state of the SiC powder. As a result, the SiC powder was dispersed without any problem, and there were no defects such as pores, non-penetrated portions, and metal spots. This means that the Al-Mg alloy powder
It has the same function as the g powder, indicating that the wettability to the SiC powder is improved.
【００２２】（比較例１、２）比較のために、比較例１
では、Ａｌ−Ｍｇ合金粉末を添加しなかった他は、比較
例２では、Ａｌ−Ｍｇ合金粉末を本発明の範囲外の６．
５重量％添加した他は実施例１と同様に鋳造物を作製
し、評価した。その結果、比較例１では、ＳｉＣ粉末へ
の濡れ性が良くなかったためか、希釈中にＳｉＣ粉末が
溶湯上部に浮いてきて鋳造に適した溶湯物が得られなか
った。また、比較例２では、Ａｌ−Ｍｇ合金が多すぎた
ため、浸透速度ムラが生じて浸透しなかった部分が発生
し、希釈中に微量のＳｉＣ粉末が溶湯上部に浮き、鋳造
物にも未含浸部分が認められた。(Comparative Examples 1 and 2) For comparison, Comparative Example 1
In Comparative Example 2, except that the Al-Mg alloy powder was not added, the Al-Mg alloy powder was not included in the scope of the present invention.
A casting was prepared and evaluated in the same manner as in Example 1 except that 5% by weight was added. As a result, in Comparative Example 1, because the wettability to the SiC powder was not good, the SiC powder floated above the molten metal during the dilution, and a molten material suitable for casting could not be obtained. In Comparative Example 2, since there was too much Al-Mg alloy, there was a portion that did not penetrate due to unevenness in permeation speed, and a small amount of SiC powder floated on the molten metal during dilution, and the casting was not impregnated. Part was observed.
【００２２】[0022]
【発明の効果】以上の通り、本発明の鋳造用金属−セラ
ミックス複合材料の製造方法であれば、Ｍｇ粉末を用い
なくてもＡｌ−Ｍｇ合金粉末を用いることにより、それ
と同等の鋳造用金属−セラミックス複合材料を得ること
のできる製造方法を提供できるようになった。このこと
により、鋳造用の複合材料の製造が従来より格段に容易
となった。As described above, according to the method for producing a metal-ceramic composite material for casting of the present invention, the use of an Al-Mg alloy powder without the use of Mg powder makes it possible to obtain an equivalent casting metal-ceramic material. It has become possible to provide a manufacturing method capable of obtaining a ceramic composite material. This has greatly facilitated the production of composite materials for casting.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 林 睦夫 埼玉県浦和市大牧560 (72)発明者 高橋 平四郎 千葉県松戸市松戸新田314−１ (72)発明者 樋口 毅 東京都東久留米市氷川台１−３−９ (72)発明者 小山 富和 東京都北区浮間１−３−１−805 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Mutsumi Hayashi 560 Omaki, Urawa-shi, Saitama (72) Inventor Heishiro Takahashi 314-1 Matsudo-Shinda, Matsudo-shi, Chiba (72) Inventor Takeshi Higuchi Tokyo Higashi-Kurume, Tokyo 1-3-9 Hikawadai, City (72) Inventor Tomiwa Koyama 1-3-1-805, Ukima, Kita-ku, Tokyo
Claims (2)
あるアルミニウム合金を浸透させて作製した金属−セラ
ミックス複合材料を溶融し、それを融解したアルミニウ
ム合金で希釈する鋳造用金属-セラミックス複合材料の
製造方法において、該セラミックス粉末が、Ａｌ2Ｏ3、
ＳｉＣ、ＡｌＮなどのセラミックス粉末に、Ａｌ−Ｍｇ
合金粉末をＭｇ換算で０．５〜６．０重量％加えた粉末
であることを特徴とする鋳造用金属−セラミックス複合
材料の製造方法。1. A metal-ceramic composite material for casting, wherein a metal-ceramic composite material produced by impregnating a ceramic powder as a reinforcing material with an aluminum alloy as a base material is melted and diluted with the molten aluminum alloy. In the manufacturing method, the ceramic powder is Al 2 O 3 ,
Al-Mg for ceramic powders such as SiC and AlN
A method for producing a metal-ceramic composite material for casting, wherein the powder is obtained by adding 0.5 to 6.0% by weight of an alloy powder in terms of Mg.
径で５〜２５０μｍであることを特徴とする請求項１記
載の鋳造用金属−セラミックス複合材料の製造方法。2. The method for producing a metal-ceramic composite material for casting according to claim 1, wherein the fineness of the Al—Mg alloy powder is 5 to 250 μm in average particle size.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08244698A JP4167317B2 (en) | 1998-03-16 | 1998-03-16 | Method for producing metal / ceramic composite material for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08244698A JP4167317B2 (en) | 1998-03-16 | 1998-03-16 | Method for producing metal / ceramic composite material for casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11264032A true JPH11264032A (en) | 1999-09-28 |
| JP4167317B2 JP4167317B2 (en) | 2008-10-15 |
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| JP08244698A Expired - Fee Related JP4167317B2 (en) | 1998-03-16 | 1998-03-16 | Method for producing metal / ceramic composite material for casting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006336076A (en) * | 2005-06-02 | 2006-12-14 | Taiheiyo Cement Corp | Method for manufacturing metal-ceramics composite material |
| JP2010258458A (en) * | 2010-04-26 | 2010-11-11 | Dowa Holdings Co Ltd | Ceramic insulating substrate-integrated metal-ceramic composite heat sink and method for manufacturing the same |
| WO2022224549A1 (en) * | 2021-04-19 | 2022-10-27 | アドバンスコンポジット株式会社 | Method for producing metal matrix composite material and method for manufacturing preform |
| CN115369276A (en) * | 2022-08-15 | 2022-11-22 | 哈尔滨工业大学（威海） | SiC and TiB 2 Double-phase reinforced aluminum-based composite material and preparation method thereof |
-
1998
- 1998-03-16 JP JP08244698A patent/JP4167317B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006336076A (en) * | 2005-06-02 | 2006-12-14 | Taiheiyo Cement Corp | Method for manufacturing metal-ceramics composite material |
| JP2010258458A (en) * | 2010-04-26 | 2010-11-11 | Dowa Holdings Co Ltd | Ceramic insulating substrate-integrated metal-ceramic composite heat sink and method for manufacturing the same |
| WO2022224549A1 (en) * | 2021-04-19 | 2022-10-27 | アドバンスコンポジット株式会社 | Method for producing metal matrix composite material and method for manufacturing preform |
| JP2022165294A (en) * | 2021-04-19 | 2022-10-31 | アドバンスコンポジット株式会社 | Manufacturing method of metal matrix composite, and preparing method of preform |
| CN115369276A (en) * | 2022-08-15 | 2022-11-22 | 哈尔滨工业大学（威海） | SiC and TiB 2 Double-phase reinforced aluminum-based composite material and preparation method thereof |
| CN115369276B (en) * | 2022-08-15 | 2023-06-06 | 哈尔滨工业大学（威海） | A kind of SiC and TiB2 dual-phase reinforced aluminum matrix composite material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| JP4167317B2 (en) | 2008-10-15 |
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