JPH03211208A - Manufacture of composite metal powder - Google Patents
Manufacture of composite metal powderInfo
- Publication number
- JPH03211208A JPH03211208A JP7437990A JP7437990A JPH03211208A JP H03211208 A JPH03211208 A JP H03211208A JP 7437990 A JP7437990 A JP 7437990A JP 7437990 A JP7437990 A JP 7437990A JP H03211208 A JPH03211208 A JP H03211208A
- Authority
- JP
- Japan
- Prior art keywords
- metal
- reinforcing material
- matrix
- molten
- powder
- 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 63
- 239000002184 metal Substances 0.000 title claims abstract description 63
- 239000000843 powder Substances 0.000 title claims abstract description 29
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000012779 reinforcing material Substances 0.000 claims abstract description 40
- 239000011159 matrix material Substances 0.000 claims abstract description 35
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 11
- -1 whiskers Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 239000000110 cooling liquid Substances 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 238000001125 extrusion Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 4
- 239000002905 metal composite material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000005242 forging Methods 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
- 239000011777 magnesium Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910000882 Ca alloy Inorganic materials 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
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000005507 spraying Methods 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
材料の原料となる金属粉末の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing metal powder that is a raw material for 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圧加圧
（ＨＩ Ｐ）処理などにより固化成形する方法であり、
その後、必要に応じて押出しや鍛造などにより、所要の
形状に加工成形される。Powder metallurgy is one of the methods for producing reinforced metal composite materials. This method is a method in which matrix metal powder and reinforcing material are mixed in a predetermined ratio and solidified and formed by hot pressing or hot isostatic pressing (HIP) treatment.
Thereafter, it is processed and formed into a desired shape by extrusion, forging, etc. as necessary.
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は入りにくく、
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、強化材の物性か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 enter 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 be 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の原料粉末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 reinforced metal composite material in which the reinforcing material can be easily and uniformly dispersed in the matrix metal, and even when the reinforcing material is fine, the manufacturing cost does not increase. The purpose of the present invention is to provide a method for producing raw material powder.
（課題を解決するための手段）
上記目的を達成するためになされた本発明の製造方法は
、ＣａもしくはＣｒを０．５〜１０ｗｔχ又はＣｅもし
くはＢｅを０．５〜５ｗｔχ含有したマトリックス金属
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、該混合溶湯を粒滴状に分断すると共に急
冷凝固させることを手段とするものである。(Means for Solving the Problems) The manufacturing method of the present invention, which has been made to achieve the above object, uses a matrix metal molten metal containing 0.5 to 10 wtχ of Ca or Cr or 0.5 to 5 wtχ of Ce or Be. After mixing and dispersing reinforcing materials in the form of short fibers, whiskers, and particles, the mixed molten metal is divided into droplets and rapidly solidified.
（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
に容易に分は入るため、強化材が解絡され易くなり、強
化材は溶湯中に分散して混合される。(Function) Matrix metal molten metal easily penetrates between the reinforcing materials compared to metal powder, so the reinforcing materials are easily disentangled, and the reinforcing materials are dispersed and mixed in the molten metal.
特に、本発明において使用するマトリックス金属溶湯中
にはＣａもしくはＣｒを０．５〜１０ｗｔ％含有れてい
るので、強化材のマトリックス金属溶湯に対する濡れ性
が向上し、強化材が掻めて容易に溶湯中に均一分散され
る。ＣａもしくはＣｒが０．５χ未満では濡れ性の向上
効果が過少であり、一方１０χを越えると混合溶湯の溶
滴を後述のように急冷凝固してもＣａが基地中に固溶さ
れないものやＮ化合物が生じ、脆化する。尚、Ｍｇも０
．５〜１０ｗｔχで濡れ性向上効果が認められる。In particular, since the molten matrix metal used in the present invention contains 0.5 to 10 wt% of Ca or Cr, the wettability of the reinforcing material to the molten matrix metal is improved, and the reinforcing material can be scraped easily. Uniformly dispersed in the molten metal. If Ca or Cr is less than 0.5χ, the wettability improvement effect will be too small, while if it exceeds 10χ, Ca will not be dissolved in the matrix or N will not be dissolved even if the mixed molten metal droplets are rapidly solidified as described below. Compounds are formed and become brittle. In addition, Mg is also 0
．． An effect of improving wettability is observed at 5 to 10 wtχ.
ＣｅもしくはＢｅも同様の理由により、０．５〜５ｗｔ
χで強化材の濡れ性向上効果が認められる。Ｃｅの場合
、５χを越えるとＣｅＮａが析出してマトリックスが１
危化する。Ce or Be is also 0.5 to 5wt for the same reason.
The effect of improving the wettability of the reinforcing material is observed at χ. In the case of Ce, if it exceeds 5χ, CeNa will precipitate and the matrix will become 1
endangered.
強化材がマトリックス金属溶湯中に分散混合した混合溶
湯を粒滴状に分断すると共に急冷凝固させることにより
、Ｃａ、 Ｃｒ＋ Ｃｅ、 Ｂｅが過飽和に固溶したマ
トリックス金属中に強化材が均一に分散埋入した急冷凝
固粉末が得られる。この粉末においては、Ｃａ等の濡れ
性向上作用により強化材とマトリックスの接合状態が強
固であり、しかもＣａ等がマトリックス中にほぼ完全に
固溶された状態となっているため、Ｃａ等の含有による
強度の低下も生じにくい。By dividing the mixed molten metal in which the reinforcing material is dispersed and mixed into the matrix metal molten metal into droplets and rapidly solidifying it, the reinforcing material is uniformly dispersed and buried in the matrix metal in which Ca, Cr+Ce, and Be are supersaturated as solid solutions. A rapidly solidified powder is obtained. In this powder, the bonding state between the reinforcing material and the matrix is strong due to the wettability improving effect of Ca, etc., and moreover, Ca etc. are almost completely dissolved in the matrix, so the content of Ca etc. It is also less likely that the strength will decrease due to
この金属粉末を一体成形することにより、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 molding 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ミ
ックスや、ボロン、タングステン等の金属が使用される
。(Example) The reinforcing material used in the present invention may be in the form of short fibers, whiskers, or particles. As the material, ceramics such as alumina, silicon carbide, and potassium titanate, and metals such as boron and tungsten are used.
一方、マトリックス金属としては、軽量金属であるアル
ミニウム、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。On the other hand, as the matrix metal, lightweight metals such as aluminum, magnesium, titanium, or alloys thereof are mainly used.
これらの金属材には強化材の濡れ性向上のために予めＣ
ａもしくはＣｒを０．５〜１０ ｗｔχ又はＣｅもしく
はＢｅを０．５〜５ｗｔχ合金化しておくとよい。Ｃａ
等の合金化は、Ｃａ等を実質的に含有しないマトリック
ス金属材に金属ＣａやＣａ合金（例えば、Ｃａ−５ｔ）
等を添加して溶解すればよい。尚、Ｃａ等を合金化した
マトリックス金属を使用しない場合は、噴射用の溶湯を
溶製する際に同様の操作を行い、溶湯中にＣａ等を含有
させればよい。These metal materials are coated with carbon in advance to improve the wettability of the reinforcing material.
It is preferable to alloy 0.5 to 10 wtχ of a or Cr or 0.5 to 5 wtχ of Ce or Be. Ca
Alloying of metal Ca or Ca alloy (e.g. Ca-5t) to a matrix metal material that does not substantially contain Ca etc.
etc. may be added and dissolved. If a matrix metal alloyed with Ca or the like is not used, Ca or the like may be contained in the molten metal by performing the same operation when preparing the molten metal for injection.
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ｌと溶湯噴射容器２とを備え、回転ド
ラムｌの内周面には別途供給された冷却水が回転ドラム
１の回転により生じ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 the cylinder 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溶湯
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２゜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 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 the rotating cooling water to obtain a 2° cold solidified powder in which the reinforcing material is embedded.
尚、急冷凝固粉末を製造する手段としては、畝上の手段
に限らず、流下する混合溶湯に対して水やＡｒガス等の
冷却媒体を噴射して金属粉末を得るアトマイズ法の適用
も可能である。Note that the means for producing rapidly solidified powder is not limited to the method on ridges, but it is also possible to apply the atomization method to obtain metal powder by injecting a cooling medium such as water or Ar gas to the flowing mixed molten metal. be.
強化材が埋入した急冷凝固粉末は、ホットプレス、ＨＩ
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, HI
P, is integrated by 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.
〈実施例Ａ〉
（１） Ａｌ −５ｗｔχＣａ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１０００
″Ｃに加熱溶融し、その後、撹拌プロペラを回転させな
がら、ＳｉＣ粒子（Ｂ型、粒径２０〜４０μＩ）を混入
した。混合比は体積比でＮ合金の１５χとした。<Example A> (1) Al-5wtχCa alloy was used as the matrix metal, and it was heated to 1000 ml in a graphite molten metal injection container.
"C" was heated and melted, and then SiC particles (B type, particle size 20 to 40 μI) were mixed in while rotating a stirring propeller.The mixing ratio was 15χ of the N alloy by volume.
（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／ｃｄ）を注入し、ＳｉＣ粒子
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、実施例の急
冷凝固粉末を作製した。尚、冷却ドラムは１５００ｒ、
ｐ、−で回転した。(2) While the stirring propeller is still rotating, Ar gas (gas pressure 1.4 kgf/cd) is injected from the injection hole to pressurize the molten metal in which SiC particles are dispersed and mixed, and the molten metal is poured from the injection hole to the inner peripheral surface of the cooling drum. The rapidly solidified powder of the example was prepared by spraying the powder onto the cooling water layer formed in the above. In addition, the cooling drum is 1500r,
Rotated at p, -.
（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、ＳｉＣ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 SiC was evenly dispersed and embedded.
（４）比較例として、マトリックス金属として純Ｎを用
いた他は（１）〜（３）と同様の条件で急冷凝固粉末を
作製した。(4) As a comparative example, rapidly solidified powder was produced under the same conditions as in (1) to (3) except that pure N was used as the matrix metal.
（５）上記実施例および比較例の２．冷凝固粉末を押出
しコンテナに装入し、押出比６．５、押出温度５００℃
で押出した。得られた押出材の引張強度を測定したとこ
ろ下記の通りであり、実施例の方が比較例に比べて２０
χの強度向上が見られた。(5) 2. of the above Examples and Comparative Examples. Charge the cold solidified powder into an extrusion container, extrusion ratio 6.5, extrusion temperature 500℃
I pushed it out. When the tensile strength of the obtained extruded material was measured, it was as follows, and the tensile strength of the example was 20% higher than that of the comparative example.
An improvement in the strength of χ was observed.
実施例−・−・−・−４８ｋｇ／閣２
比較例−−−−−−−４０ｋｇ ／ ｔｔｍ ”〈実施
例Ｂ〉
（１） Ａｌ−１ｗｔχＣｅ、３ｗｔχＣｅ、５ｗｔ
χＣｅの各合金をマトリックス金属として用い、実施例
Ａと同様の条件でＳｉＣ粒子複合Ｎ粉末を製作した。Example -・-・-・-48kg/Kaku2 Comparative example---40kg/ttm "Example B" (1) Al-1wtχCe, 3wtχCe, 5wt
SiC particle composite N powder was produced under the same conditions as Example A using each alloy of χCe as a matrix metal.
（２） （１）の複合粉末を用いて、押出比６．５、
押出温度５００°Ｃで押出した。押出材の引張強度を測
定したところ下記の通りであった。(2) Using the composite powder of (1), extrusion ratio 6.5,
Extrusion was carried out at an extrusion temperature of 500°C. The tensile strength of the extruded material was measured and was as follows.
、６Ｊ−１χＣｅ−−−−−−−−−４２ｋｇ ／ ｕ
ｓ ”Ｎ−３χＣｅ−−−−−−−−４７ｋｇ ／ ｗ
ａ ”Ｎ−５χＣｅ−−−−−−−−−４７ｋｇ ／
ｉｇｓ ”純Ｎマトリックスの複合材（実施例への比較
材）の引張強度は４０ｋｇ／■２であるから、Ｃｅの所
定量の添加により、５〜１８χの強度の向上が認められ
た。, 6J-1χCe---42kg/u
s ”N-3χCe---47kg/w
a ”N-5χCe---47kg/
Since the tensile strength of the pure N matrix composite material (comparison material to the example) is 40 kg/2, it was observed that the strength was improved by 5 to 18x by adding a predetermined amount of Ce.
（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、Ｃａ、 Ｃｒ、 Ｃｅ、 Ｂｅの所定量を
含有したマトリックス金属溶湯中で強化材を混合分散す
るので、強化材のマトリックス金属溶湯に対する濡れ性
が向上し、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
かつマトリックスとの接合強度も高い急冷凝固粉末が容
易に得られる。(Effects of the Invention) As explained above, according to the method for producing a reinforced metal powder material of the present invention, the reinforcing material is mixed and dispersed in a matrix metal molten metal containing predetermined amounts of Ca, Cr, Ce, and Be. The reinforcing material has improved wettability to the molten matrix metal and is easily and uniformly dispersed in the molten metal. Then, by injecting this into the cooling liquid layer, a rapidly solidified powder in which the reinforcing material is uniformly dispersed and has high bonding strength with the matrix can be easily obtained.
これを一体成形することにより、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。By integrally molding this, 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図は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−溶湯噴射容器、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-...cooling liquid layer.
Claims (2)
マトリックス金属溶湯内に短繊維、ウィスカー又は粒子
形態の強化材を混合分散させた後、該混合溶湯を粒滴状
に分断すると共に急冷凝固させることを特徴とする複合
金属粉末の製造方法。(1) After mixing and dispersing reinforcing material in the form of short fibers, whiskers, or particles in a molten matrix metal containing 0.5 to 10 wt% of Ca or Cr, the molten mixture is divided into droplets and rapidly solidified. A method for producing composite metal powder, characterized in that:
トリックス金属溶湯内に短繊維、ウィスカー又は粒子形
態の強化材を混合分散させた後、該混合溶湯を粒滴状に
分断すると共に急冷凝固させることを特徴とする複合金
属粉末の製造方法。(2) After mixing and dispersing reinforcing material in the form of short fibers, whiskers, or particles in a molten matrix metal containing 0.5 to 5 wt% of Ce or Be, the molten mixture is divided into droplets and rapidly solidified. A method for producing composite metal powder, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7437990A JPH03211208A (en) | 1989-10-26 | 1990-03-23 | Manufacture of composite metal powder |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1-279368 | 1989-10-26 | ||
| JP27936889 | 1989-10-26 | ||
| JP7437990A JPH03211208A (en) | 1989-10-26 | 1990-03-23 | Manufacture of composite metal powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03211208A true JPH03211208A (en) | 1991-09-17 |
Family
ID=26415521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7437990A Pending JPH03211208A (en) | 1989-10-26 | 1990-03-23 | Manufacture of composite metal powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03211208A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199606A (en) * | 1984-10-22 | 1986-05-17 | Hitachi Ltd | Production of composite powder |
-
1990
- 1990-03-23 JP JP7437990A patent/JPH03211208A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6199606A (en) * | 1984-10-22 | 1986-05-17 | Hitachi Ltd | Production of composite powder |
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