JPH0397806A - Manufacture of reinforced metal powder material - Google Patents
Manufacture of reinforced metal powder materialInfo
- Publication number
- JPH0397806A JPH0397806A JP23259689A JP23259689A JPH0397806A JP H0397806 A JPH0397806 A JP H0397806A JP 23259689 A JP23259689 A JP 23259689A JP 23259689 A JP23259689 A JP 23259689A JP H0397806 A JPH0397806 A JP H0397806A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- molten metal
- mixed
- dispersed
- reinforcing material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 45
- 239000002184 metal Substances 0.000 title claims abstract description 45
- 239000000843 powder Substances 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 title claims description 8
- 239000012779 reinforcing material Substances 0.000 claims abstract description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000000110 cooling liquid Substances 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 10
- 239000007924 injection Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 6
- 239000002131 composite material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 239000002905 metal composite material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- -1 whiskers Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910001111 Fine metal Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910001199 N alloy Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F2009/0804—Dispersion in or on liquid, other than with sieves
- B22F2009/0812—Pulverisation with a moving liquid coolant stream, by centrifugally rotating stream
Landscapes
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はセラミック繊維等によって強化された金属複合
材料の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of manufacturing a metal composite material reinforced with ceramic fibers or the like.
（従来の技術と課題）
高強度セラミック繊維等の強化材によりマトリックス金
属を複合強化した強化金属複合材料は、比強度や比弾性
率が高く、また耐熱性を有し、航空機、車輌、各種機械
用部品材料として注目されている。(Conventional technology and issues) Reinforced metal composite materials, which are composite reinforced matrix metals with reinforcing materials such as high-strength ceramic fibers, have high specific strength and specific modulus, and are heat resistant, and are used in aircraft, vehicles, and various machines. It is attracting attention as a material for industrial parts.
強化金属複合材料の製造方法の一つとして、粉末冶金法
がある。この方法は、マトリックス金属粉末と強化材と
を所定の割合で混合し、ホットプレスや熱間等方加圧（
ＨＩＰ）処理などにょり固化或形する方法であり、その
後、必要に応じて押出しや鍛造などにより、所要の形状
に加工戒形される。Powder metallurgy is one of the methods for producing reinforced metal composite materials. This method involves mixing matrix metal powder and reinforcing material in a predetermined ratio, and then hot pressing or hot isostatic pressing (
This is a method of solidifying or shaping the material through HIP (HIP) treatment, etc., and then, if necessary, processing and shaping into the desired shape by extrusion, forging, etc.
しかしながら、粉末冶金法では、金属粉末と強化材とを
混合する際、金属粉末が強化材の間に分け入りにくく、
両者が均一に混合分散せず、所々に未解絡強化材のかた
まりが生じ、これが複合材中にそのまま埋入され、その
結果、強化材の物性が不均一になり易いという欠点があ
る。また、強化材の分散性を向上させるため、微細なも
のを使用すると、これに応じて金属粉末も微細なものを
使用しなければならず、コスト高の要因になる。However, in the powder metallurgy method, when mixing metal powder and reinforcing material, it is difficult for the metal powder to penetrate between the reinforcing materials.
The disadvantage is that the two do not mix and disperse uniformly, resulting in lumps of undisentangled reinforcing material occurring in some places, which are embedded in the composite material as they are, and as a result, the physical properties of the reinforcing material tend to become non-uniform. Furthermore, if a fine reinforcing material is used to improve the dispersibility of the reinforcing material, a correspondingly fine metal powder must be used, which becomes a factor in increasing costs.
本発明はかかる問題点に鑑みなされたもので、マトリッ
クス金属中に強化材を容易に均一分散させることができ
、また強化材が微細な場合でも、製造コストの上昇を生
じない強化金属複合材料原料の製造方法を提供すること
を目的とする。The present invention was devised in view of these problems, and is a raw material for reinforced metal composite materials that can easily and uniformly disperse the reinforcing material in the matrix metal, and does not cause an increase in manufacturing costs even when the reinforcing material is fine. The purpose is to provide a manufacturing method for.
（課題を解決するための手段）
上記目的を達或するためになされた本発明の製造方法は
、７１−リックス金属溶湯内に短繊維、ウィスカー、粒
子形態の強化材を混合分散させた後、該混合溶湯を回転
する冷却ドラムの内周面に遠心力の作用で形或された冷
却液層中に噴射して分断凝固させることを手段とするも
のである。(Means for Solving the Problems) In order to achieve the above object, the manufacturing method of the present invention includes mixing and dispersing reinforcing materials in the form of short fibers, whiskers, and particles in a molten 71-Rix metal, and then The method is to inject the mixed molten metal into a cooling liquid layer formed on the inner circumferential surface of a rotating cooling drum by the action of centrifugal force, thereby dividing and solidifying the mixed molten metal.
（作 用）
マトリックス金属溶湯は、金属粉末に比べて強化材の間
に容易に分け入るため、強化材が解絡され易くなり、強
化材は溶湯中に均一分散して混合される。(Function) The matrix metal molten metal penetrates between the reinforcing materials more easily than the metal powder, so the reinforcing materials are easily disentangled, and the reinforcing materials are uniformly dispersed and mixed in the molten metal.
この混合熔湯を冷却液層中に噴射することにより、強化
材が均一に分散埋入した急冷凝固粉末が得られる。By injecting this mixed molten metal into the cooling liquid layer, a rapidly solidified powder in which the reinforcing material is uniformly dispersed and embedded is obtained.
この金属粉末を一体或形することにより、強化材が内部
に均一に分散した複合材が容易に得られる。By integrally shaping this metal powder, a composite material in which the reinforcing material is uniformly dispersed can be easily obtained.
（実施例）
本発明に使用する強化材の形態としては、短繊維，ウィ
スカー，粒子のいずれでもよい。材質としては、アルミ
ナ，シリコンカーバイド．チタン酸カリウム等のセラξ
ツクスや、ボロン１ タングステン等の金属が使用され
る。一方、マトリンクス金属としては、軽量金属である
アルえニウムマグネシウム，チタンまたはこれらの合金
が主として使用される。(Example) The reinforcing material used in the present invention may be in the form of short fibers, whiskers, or particles. Materials are alumina and silicon carbide. Seraξ such as potassium titanate
Metals such as tux and boron 1 tungsten are used. On the other hand, as the matrix metal, lightweight metals such as arenium magnesium, titanium, or alloys thereof are mainly used.
第１図は、本発明を実施するための装置の概要を示して
おり、回転ドラム１と溶湯噴射容器２とを備え、回転ド
ラム１の内周面には別途供給された冷却水が回転ドラム
１の回転により生した遠心力の作用で冷却水層３を形成
している。溶湯噴射容器２はマトリックス金属溶湯と反
応しにくい耐火材（例えば、黒鉛）で形成されており、
外周部に加熱用高周波コイル４が巻回されている。下部
には噴射孔５が開設され、上部開口には蓋体６が着脱自
在に取り付けられ、容器２を密封している。FIG. 1 shows an outline of an apparatus for carrying out the present invention, which is equipped with a rotating drum 1 and a molten metal injection container 2. A cooling water layer 3 is formed by the action of centrifugal force generated by the rotation of 1. The molten metal injection container 2 is made of a refractory material (for example, graphite) that does not easily react with the molten matrix metal.
A heating high frequency coil 4 is wound around the outer periphery. An injection hole 5 is provided in the lower part, and a lid 6 is removably attached to the upper opening to seal the container 2.
また、該蓋体６を貫通して撹拌プロペラ７が装着されて
おり、容器２内のマトリックス金属溶湯１１は、撹拌プ
ロペラ７により容器２内に装入された強化材と共に撹拌
混合される。蓋体６には不活性ガス注入孔８が開設され
、容器２内に注入された不活性ガスにより容器内の熔湯
は加圧され、前記噴射孔５より冷却水層３に向って噴射
され、回転する冷却水により分断され、強化材が埋入し
た急冷凝固粉末が得られる。Further, a stirring propeller 7 is attached to pass through the lid 6, and the matrix metal molten metal 11 in the container 2 is stirred and mixed together with the reinforcing material charged into the container 2 by the stirring propeller 7. An inert gas injection hole 8 is formed in the lid body 6, and the molten metal in the container is pressurized by the inert gas injected into the container 2, and is injected from the injection hole 5 toward the cooling water layer 3. , it is divided by rotating cooling water to obtain a rapidly solidified powder in which reinforcing material is embedded.
強化材が埋入した急冷凝固粉末は、ホットプレス、Ｈ
Ｉ Ｐ、押出し、鍛造等により一体化され、所期の複合
材に成形される。The rapidly solidified powder with embedded reinforcing material is hot pressed, H
They are integrated by IP, extrusion, forging, etc., and formed into the desired composite material.
次に具体的実施例について説明する。Next, specific examples will be described.
（１）＾６０６１− Ｎ合金をマトリックス金属として
用い、これを黒鉛製溶湯噴射容器内で７５０゜Ｃに加熱
溶融し、その後、チタン酸カリウム（ＫｚＴｉｉ，Ｏｓ
）の短繊維（平均径０．６μｍ、平均長さ１２μｍ）
を混入した。混合比は体積比でＭ合金の２０％とした。(1) ^6061-N alloy was used as the matrix metal, heated and melted at 750°C in a graphite molten metal injection container, and then potassium titanate (KzTii, Os
) short fibers (average diameter 0.6 μm, average length 12 μm)
was mixed in. The mixing ratio was 20% by volume of M alloy.
混入に際しては、撹拌プロペラを１００ｒｐｍで回転し
た。During mixing, a stirring propeller was rotated at 100 rpm.
（２）撹拌プロペラを回転したまま、注入孔よりＡｒガ
ス（ガス圧１．４ｋｇｆ／ｃ＋ｓ”）を注入し、短繊維
が分散混合した溶湯を加圧し、噴射孔より該溶湯を冷却
ドラム内周面に形成した冷却水層に噴射し、急冷凝固粉
末を作製した。尚、冷却ドラムは１５００ｒ．ｐ．ｍで
回転した。(2) While the stirring propeller is still rotating, Ar gas (gas pressure 1.4 kgf/c+s) is injected through the injection hole to pressurize the molten metal in which short fibers are dispersed and mixed, and the molten metal is poured through the injection hole around the inner circumference of the cooling drum. A cooling water layer formed on the surface was injected to produce a rapidly solidified powder.The cooling drum was rotated at 1500 rpm.
（３）その結果、平均粒径６００μｍの粉末が得られた
。粒子の断面を観察したところ、短繊維が均一に分散埋
入されていた。(3) As a result, powder with an average particle size of 600 μm was obtained. When the cross section of the particles was observed, it was found that the short fibers were evenly dispersed and embedded.
（４）上記粉末を押出しコンテナに装入し、押出比１０
、押出温度４５０゜Ｃで押出したところ、基地中に短繊
維が均一かつ一方向に配列した複合材が得られた。(4) Charge the above powder into an extrusion container and extrusion ratio 10
When extruded at an extrusion temperature of 450°C, a composite material in which short fibers were uniformly arranged in one direction in the matrix was obtained.
（発明の効果）
以上説明した通り、本発明の強化金属粉末材料の製造方
法によれば、強化材をマトリックス金属溶湯中で混合分
散するので、強化材が溶湯中に容易に均一分散する。そ
して、これを冷却液層に噴射することにより、強化材が
均一分散したマトリックス金属の急冷凝固粉末が得られ
る。これを一体或形することにより、強化材が均一分散
した複合材料が容易に得られる。また、強化材の大きさ
に応じてマトリックス金属粉末の粒径を調整する必要も
なく、経済的である。(Effects of the Invention) As explained above, according to the method for manufacturing a reinforced metal powder material of the present invention, the reinforcing material is mixed and dispersed in the molten matrix metal, so the reinforcing material is easily and uniformly dispersed in the molten metal. Then, by injecting this into the cooling liquid layer, a rapidly solidified matrix metal powder in which the reinforcing material is uniformly dispersed can be obtained. By forming this into one piece, a composite material in which the reinforcing material is uniformly dispersed can be easily obtained. Furthermore, there is no need to adjust the particle size of the matrix metal powder depending on the size of the reinforcing material, which is economical.
第１図ｔま本発明を実施するための粉末製造装置の要部
縦断面図を示す。
１・・・冷却ドラム、２・・・熔湯噴射容器、３・・・
冷却液層。FIG. 1 shows a vertical cross-sectional view of a main part of a powder manufacturing apparatus for carrying out the present invention. 1... Cooling drum, 2... Molten metal injection container, 3...
coolant layer.
Claims (1)
は粒子形態の強化材を混合分散させた後、該混合溶湯を
回転する冷却ドラムの内周面に遠心力の作用で形成され
た冷却液層中に噴射して分断凝固させることを特徴とす
る強化金属粉末材料の製造方法。(1) After short fibers, whiskers, or particulate reinforcing materials are mixed and dispersed in the matrix metal molten metal, the mixed molten metal is mixed and dispersed in a cooling liquid layer formed by the action of centrifugal force on the inner peripheral surface of a cooling drum that rotates the mixed molten metal. A method for producing a reinforced metal powder material, which comprises splitting and solidifying the material by injecting it into the material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23259689A JPH0397806A (en) | 1989-09-07 | 1989-09-07 | Manufacture of reinforced metal powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23259689A JPH0397806A (en) | 1989-09-07 | 1989-09-07 | Manufacture of reinforced metal powder material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0397806A true JPH0397806A (en) | 1991-04-23 |
Family
ID=16941840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23259689A Pending JPH0397806A (en) | 1989-09-07 | 1989-09-07 | Manufacture of reinforced metal powder material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0397806A (en) |
-
1989
- 1989-09-07 JP JP23259689A patent/JPH0397806A/en active Pending
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