JPH0225528A - Manufacture of grain dispersion-strengthened alloy - Google Patents
Manufacture of grain dispersion-strengthened alloyInfo
- Publication number
- JPH0225528A JPH0225528A JP17649988A JP17649988A JPH0225528A JP H0225528 A JPH0225528 A JP H0225528A JP 17649988 A JP17649988 A JP 17649988A JP 17649988 A JP17649988 A JP 17649988A JP H0225528 A JPH0225528 A JP H0225528A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- particles
- dispersed
- alloy
- metal
- 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
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 28
- 239000000956 alloy Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims description 70
- 239000006185 dispersion Substances 0.000 claims description 14
- 238000002844 melting Methods 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 abstract description 3
- 239000002360 explosive Substances 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 21
- 239000007921 spray Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000012159 carrier gas Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 4
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- -1 but in this method Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は粒子分散強化合金の製造方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing a particle dispersion strengthened alloy.
（従来の技術）
金属中にセラミックなどの粒子を分散させた分散強化合
金は機能性材料として広く使用されている。分散強化合
金は、金属粉と分散すべき粒子を混合し、次いで圧粉成
形、焼結、押出し又はＨＩＰ処理、機械加工を経る焼結
法で製造される場合が多いが、焼結法は工程が複雑なた
め設備投資が多額であり、且つ金属粉も高価であること
から、最近溶製法による製造が検討されている。溶製法
は金属溶湯に粒子を添加して鋳造する方法であシ、更に
ポルテックス法、インジェクション法、コンポキャスト
法、噴射法等に分けることができるが、技術的に確立し
ていない点が多い。市販されている分散強化合金として
は例えばアメリカ合衆国、デューラル（Ｄｕｒａｌ ）
社〔アルカン（Ａｌｃａｎ ）社の子会社〕の、粒径１
０〜２０μｍのＳｉＣ粒子をアルミニウム中に分散させ
た分散強化合金が挙げられるが、製造方法の詳細は不明
である。(Prior Art) Dispersion-strengthened alloys, in which particles of ceramic or the like are dispersed in metal, are widely used as functional materials. Dispersion-strengthened alloys are often produced by a sintering method in which metal powder and particles to be dispersed are mixed and then subjected to compaction, sintering, extrusion or HIP treatment, and machining. Since the process is complicated and requires a large amount of equipment investment, and the metal powder is also expensive, manufacturing by melting method has recently been considered. The melting method is a method of adding particles to molten metal and casting it, and can be further divided into portex method, injection method, composite casting method, injection method, etc., but there are many points that are not technically established. Examples of commercially available dispersion strengthened alloys include Dural, USA;
[a subsidiary of Alcan], particle size 1
One example is a dispersion-strengthened alloy in which SiC particles of 0 to 20 μm are dispersed in aluminum, but the details of the manufacturing method are unknown.
前記溶製法では金属溶湯に粒子を添加する手段として、
金属溶湯を攪拌しながらキャリアーガスと共に粒子を吹
き付けるのが一般的である。In the melting method, as a means of adding particles to the molten metal,
It is common to spray particles together with a carrier gas while stirring the molten metal.
本出願人は特開昭４２−１ｊ６７４０号公報に記載され
た、非酸化雰囲気中で溶融金属を攪拌しながら該溶融金
属の表面Ｋ、分散相としての微粒子を速度５ｍ／’ｓｅ
ｅ以上且つ温度８００〜２５００℃で噴射することを特
徴とする粒子分散強化合金Ｏ製造方法を提案した。The present applicant has disclosed the method described in Japanese Patent Application Laid-Open No. 42-1j6740, in which fine particles as a dispersed phase are dispersed on the surface K of the molten metal at a speed of 5 m/'se while stirring the molten metal in a non-oxidizing atmosphere.
We proposed a method for producing particle dispersion strengthened alloy O, which is characterized by injection at a temperature of 800 to 2,500° C. and above.
（発明が解決しようとする課題）
しかしながら、上記従来のような溶製法は下記の如く多
くの問題点を有している。(Problems to be Solved by the Invention) However, the conventional melting method described above has many problems as described below.
１）粒子が凝集し易い。即ち、粒子は微細なもの＃１ど
凝集する傾向が強く、金属溶湯内へ凝集体として入った
場合には攪拌程度では分離しないため均一に分散させる
ことが困難である。このため粒子分散強化合金の引張強
さ、ヤング率などの特性値を十分に向上させることがで
きない。1) Particles tend to aggregate. That is, fine particles #1 have a strong tendency to aggregate, and if they enter the molten metal as aggregates, they cannot be separated by stirring, making it difficult to disperse them uniformly. For this reason, it is not possible to sufficiently improve the properties such as tensile strength and Young's modulus of the particle dispersion strengthened alloy.
２）粒子が粗粉に限定される。即ち、微粒子はどキャリ
アーガスと共に飛散し易く、金属溶湯内へ混入すること
が困難であるため一般的に平均粒径１０μ以上の粗い粒
子が使用される。このため、及び添加される粒子は硬質
材からなるものが多く採用されている丸め、得られる粒
子分散強化合金の被剛性が著しく悪い。例えば、旋盤切
削においては高価なダイヤモンドコートの工具を使用し
なければ切削できない。2) Particles are limited to coarse powder. That is, coarse particles with an average particle diameter of 10 μm or more are generally used because fine particles tend to scatter together with the carrier gas and are difficult to mix into the molten metal. For this reason, the added particles are often rounded and made of a hard material, and the resulting particle dispersion strengthened alloy has extremely poor rigidity. For example, lathe cutting requires the use of expensive diamond-coated tools.
３）歩留りが悪い。即ち、添加すべき粒子のりちキャリ
アーガスの流れに沿って飛散するものが多く、溶湯内に
はあまシ入シ込まず歩留シが悪く、特に微粒子はど悪い
。3) Poor yield. That is, many of the particles to be added scatter along the flow of the carrier gas, and do not penetrate into the molten metal, resulting in a poor yield, especially fine particles.
４）キャリアーガスが必要である。即ち、溶湯を醸化さ
せないようにＮ、ガスやＡｒガスなどの高価なガスを使
用する必要がある。4) Carrier gas is required. That is, it is necessary to use an expensive gas such as N gas or Ar gas to prevent the molten metal from fermenting.
５）付帯設備が必要である。即ち、上記のように粒子が
キャリアーガスと共に飛散するため、粉塵作業となシ作
業環境が悪い。そのため、集塵機等の付帯設備が必要と
なる。5) Additional equipment is required. That is, as mentioned above, the particles are scattered together with the carrier gas, resulting in dusty work and a poor work environment. Therefore, ancillary equipment such as a dust collector is required.
本発明は上記従来技術における問題点を解決するための
ものであシ、その目的とするところは平均粒径の小さな
粒子であっても凝集を生じさせることなく、金属中に均
一に分散させることができ、かつ容易に実施することが
できる粒子分散強化合金の製造方法を提供することにあ
る。The present invention is intended to solve the above-mentioned problems in the prior art, and its purpose is to uniformly disperse particles in metal without causing agglomeration even if the average particle size is small. An object of the present invention is to provide a method for producing a particle dispersion strengthened alloy that can be easily carried out.
（問題点を解決するための手段）
即ち本発明の粒子分散強化合金の製造方法は、金属中へ
分散相として添加すべき粒子を予め溶融させた金属溶湯
に添加して予備的に分散させ、しかる後該粒子を均一に
分散させるための気化性液体を該金属溶湯に噴射するこ
とを特徴とする。(Means for Solving the Problems) That is, the method for producing a particle dispersion strengthened alloy of the present invention includes adding particles to be added to a metal as a dispersed phase to a molten metal and preliminarily dispersing them; Thereafter, a vaporizable liquid for uniformly dispersing the particles is injected into the molten metal.
粒子としては金属溶湯の温度よシ融点の高いセラミック
、金属等からなるものを使用することができる。粒子の
材質、大きさ、形状等は目的とする粒子分散強化合金の
要求特性に応じて選択する。なお本文中の粒子の用語の
内にはウィスカーや短繊維などで同様に使用し得るもの
も含壕れる。粒子は単一種類のものを使用してもよいし
、又は二種類以上組合せて使用してもよい。The particles may be made of ceramics, metals, etc. whose melting point is higher than the temperature of the molten metal. The material, size, shape, etc. of the particles are selected depending on the required characteristics of the intended particle dispersion strengthened alloy. Note that the term "particles" in this text also includes whiskers, short fibers, etc. that can be used in the same manner. A single type of particles may be used, or a combination of two or more types may be used.
気化性液体としては金属溶湯の温度より沸点の低い液体
を使用することができる。例えば水などの不燃性で分解
しにぐいものが好ましい。As the vaporizable liquid, a liquid having a boiling point lower than the temperature of the molten metal can be used. For example, nonflammable and resistant materials such as water are preferred.
気化性液体の噴射量は、あ″１シ少ないと液滴の瞬間的
気化における小爆発の力が粒子相互の凝集を解くのに十
分ではなく、逆にあ″！シ多いと金属溶湯の冷却や爆発
力の増大による危険があるので、粒子の種類、量、金属
溶湯の種類、量、温度等の条件を考慮して選択する。If the amount of vaporized liquid injected is less than 1, the force of the small explosion during instantaneous vaporization of the droplets will not be sufficient to break up the mutual agglomeration of the particles, and on the contrary! If there are too many particles, there is a risk of cooling the molten metal or increasing the explosive force, so the selection should be made in consideration of conditions such as the type and amount of particles, the type, amount, and temperature of the molten metal.
金属溶湯への気化性液体の噴射速度は１ｍ／秒以上であ
るのが望ましい。噴射速度がこれよシ遅い場合には、液
滴は、金属溶湯面に到達する前に蒸発してしまうか、或
いは蒸気を出しながら溶湯表面に浮くだけであシ、粒子
を金属溶湯中に十分に分散させることができない。It is desirable that the injection speed of the vaporizable liquid into the molten metal be 1 m/sec or more. If the injection speed is slower than this, the droplets will either evaporate before reaching the molten metal surface, or simply float on the molten metal surface while emitting steam, and the droplets will not be able to fully penetrate the molten metal. cannot be dispersed into
気化性液体の金属溶湯への噴射形態は特に限定されない
。例えば容器内で攪拌されている金属溶湯の表面若しく
は内部に混合液を噴射してもよいし、又は金属溶湯を落
下若しくは流下させながらその表面若しくは内部に気化
性液体を噴射してもよい。The form of injection of the vaporizable liquid into the molten metal is not particularly limited. For example, the mixed liquid may be injected onto the surface or inside of the molten metal that is being stirred in a container, or the vaporizable liquid may be injected onto the surface or inside of the molten metal while it is falling or flowing down.
気化性液体は、所望により空気などの気体を含んでいて
もよい。The vaporizable liquid may contain a gas such as air, if desired.
強化すべき金属はアルミニウム又はその合金等の種々の
金属を使用することができる。Various metals such as aluminum or its alloys can be used as the metal to be reinforced.
金属中へ分散相として添加する粒子の重量は４〜５０ｖ
ｔ慢が望ましい。これよシ少ない場合には粒子を添加し
ても強化合金の特性値の向上が見られず、又、多い場合
には靭性が低下する。The weight of the particles added as a dispersed phase in the metal is 4 to 50v.
Arrogance is desirable. If the amount is less than this, no improvement in the properties of the reinforced alloy will be observed even if the particles are added, and if the amount is too much, the toughness will decrease.
（作用）
予備的に粒子を分散させた金属溶湯に気化性液体を噴射
することによ、シ、溶湯中での気化性液体の急激彦体積
膨張による爆発力で粒子を金属溶湯中に均一に分散させ
る。(Function) By injecting a vaporizable liquid into the molten metal in which particles have been preliminarily dispersed, the explosive force caused by the rapid volumetric expansion of the vaporizable liquid in the molten metal causes the particles to be uniformly dispersed into the molten metal. disperse.
（実施例）
以下の実施例及び比較例において本発明を更に詳細に説
明する。なお、本発明は下記実施例に限定されるもので
はない。(Example) The present invention will be explained in further detail in the following Examples and Comparative Examples. Note that the present invention is not limited to the following examples.
実施例１
第２図ＶＣおいて、発熱体１を備えた加熱炉２内のるつ
ぼ３内で母材金属としてアルミニウム合金（ＪＩＳ
Ａ７０７５合金）を溶融して溶湯４を請判した。この溶
湯４を攪拌装置５に接続された攪拌羽ｓ６で攪拌しなが
ら、溶湯４の表面に粉体供給装置１１から平均粒径ｃＬ
１〜５０μｍのＳｔＣ粒子８供給して溶湯４内に分散さ
せた。Example 1 In FIG. 2 VC, an aluminum alloy (JIS
A7075 alloy) was melted to obtain molten metal 4. While stirring this molten metal 4 with a stirring blade s6 connected to the stirring device 5, a powder supply device 11 is applied to the surface of the molten metal 4 with an average particle diameter cL.
StC particles 8 of 1 to 50 μm were supplied and dispersed in the molten metal 4.
この時、特に平均粒径１０μｍ以下のＳＩＣ粒子８はそ
の殆んどが凝集体１２となっており、この凝集体１２は
溶湯４内においても残存し、攪拌装置５では容易に解離
しない。所定量のＳｉＣ粒子８を溶湯４に供給後、第１
図に示す如く容器７内の水９をスプレーガン１０により
溶湯４の表面へ噴射速度５ｍ／秒で所定量吹き付けた。At this time, most of the SIC particles 8 having an average particle diameter of 10 μm or less are formed into aggregates 12, and these aggregates 12 remain in the molten metal 4 and are not easily dissociated by the stirring device 5. After supplying a predetermined amount of SiC particles 8 to the molten metal 4, the first
As shown in the figure, a predetermined amount of water 9 in a container 7 was sprayed onto the surface of the molten metal 4 by a spray gun 10 at a spray speed of 5 m/sec.
比較例
粉体供給装置１１を使用せず、又、水９の代シにＡｒガ
スをキャリアーガスとして使用すること以外は、実施例
１と同様にして行った。Comparative Example The same procedure as in Example 1 was carried out except that the powder supply device 11 was not used and Ar gas was used as a carrier gas instead of water 9.
〈粒子の均一分散性の比較〉
実施例１及び比較例の方法で平均粒径を変えて製造した
強化合金について、本方法と従来法の粒子の均一分散性
を評価した。結果を第３図に示す。均一分散性の評価は
５段階評価法（数字が大きいほど均一分散性が良い）で
行った。<Comparison of Uniform Dispersibility of Particles> Regarding the reinforced alloys manufactured by the methods of Example 1 and Comparative Example with different average particle diameters, the uniform dispersibility of particles was evaluated by this method and the conventional method. The results are shown in Figure 3. Uniform dispersibility was evaluated using a 5-level evaluation method (the larger the number, the better the uniform dispersibility).
第３図から、本方法によると平均粒子径が教師以下の粒
子を使用し九場合でも分散性が向上しているのが判る。From FIG. 3, it can be seen that according to the present method, the dispersibility is improved even when particles having an average particle diameter of less than the average diameter are used.
〈粒子分散強化合金の特性比較〉
第４図に、本方法及び従来法を用いて、ＪＩＳＡ７０７
５合金に平均粒径α３μｍ０３ｉＣ粒子を２０ｗｔ％添
加して製造した粒子分散強化合金の引張強さを示す。従
来法では粒子の凝集のため母材金属並みの引張強さしか
得られないが、本方法では均一に分散するため高い引張
強さ金得ることができる。<Comparison of properties of particle dispersion strengthened alloys> Figure 4 shows that JISA707
5 shows the tensile strength of a particle dispersion strengthened alloy produced by adding 20 wt % of 03iC particles with an average particle diameter of α3 μm to Alloy No. 5. In the conventional method, a tensile strength comparable to that of the base metal can only be obtained due to the agglomeration of particles, but in this method, gold with high tensile strength can be obtained because it is uniformly dispersed.
実施例２
本例では第５図に示すように、ＳｉＣ粒子８を予備的に
分散させたアルミニウム合金の溶湯４をとりべ１３から
落下させ、この落下溶湯中へ水９をスプレーガン１０よ
り噴射してそのまま鋳型１４へ鋳込んだ。Example 2 In this example, as shown in FIG. 5, a molten aluminum alloy 4 in which SiC particles 8 have been preliminarily dispersed is dropped from a ladle 13, and water 9 is injected into the falling molten metal from a spray gun 10. Then, it was directly cast into the mold 14.
実施例３
本例では第６図に示すように、容器１５内のＳＩＣ粒子
８を予備的に分散させたアルミニウム合金の溶湯４をと
い１６に流し、その流下表面に水９をスプレーガン１０
より噴射してそのま−ｉ鋳型１４へ鋳込んだ。Example 3 In this example, as shown in FIG. 6, a molten aluminum alloy 4 in which SIC particles 8 have been preliminarily dispersed in a container 15 is poured into a pipe 16, and water 9 is poured onto the flowing surface using a spray gun 10.
The mixture was then injected into the Ma-i mold 14.
実施例２と５Ｆｉ実施例１のように攪拌装置５を使用す
る必要がなく、簡単なスプレーガン１０のみでよいとい
う利点がある。There is an advantage that there is no need to use the stirring device 5 as in Examples 2 and 5Fi Example 1, and only a simple spray gun 10 is required.
なお、実施例１〜３に用いたスプレーガンは空気と水が
噴射されるタイプ、水のみが噴射されるタイプの両方を
用いたが、両方とも本発明の効果を十分発揮した。又、
スプレーガンの代シに他の噴射手段を用いても同様の効
果が得られる。The spray guns used in Examples 1 to 3 were of a type that sprays air and water, and a type that sprays only water, and both types sufficiently exhibited the effects of the present invention. or,
Similar effects can be obtained by using other injection means in place of the spray gun.
（発明の効果）
上述の如く１本発明の粒子分散強化合金の製造方法は、
金属中へ分散相として添加すべき粒子を予め溶融させた
金属溶碍に添加して予備的に分散させ、しかる後該粒子
を均一に分散させるための気化性液体を該金属溶湯に噴
射するため、強化合金に対する粒子の均一分散性が向上
し、その結果強化合金の引張強さがどの特性値が向上し
た。又、従来法では使用が困難であったス粒子を用いる
ことができるので強化合金の被剛性が向上した。例えば
平均粒径１１３μｍのＳＩＣ粒子を添加したアルミニウ
ム合金ではダイヤモンドコートの工具を用いなくても通
常の超硬工具で切削することができる。又、粒子の歩留
シが向上した。すなわち、従来法を用いて平均粒径（Ｌ
３μｍ（ＤＳｉＣ粒子をアルミニウム合金に添加する場
合の歩留シは１０〜ｚｏｗｔ＊であったが、本方法では
９５ｗｔ％に向上した。更に、キャリアーガスや集塵機
等の付帯設備が不用となったため製造コストが安くなシ
、又、作業環境が良好となった。(Effects of the Invention) As mentioned above, the method for producing a particle dispersion strengthened alloy of the present invention includes:
To preliminarily disperse particles to be added to a metal as a dispersed phase by adding them to a pre-molten molten metal, and then injecting a vaporizable liquid into the molten metal to uniformly disperse the particles. , the uniform dispersion of particles in the reinforced alloy was improved, and as a result, the tensile strength of the reinforced alloy was improved. Furthermore, since it is possible to use particles that are difficult to use in the conventional method, the stiffness of the reinforced alloy is improved. For example, an aluminum alloy to which SIC particles with an average particle size of 113 μm are added can be cut with a normal carbide tool without using a diamond-coated tool. Furthermore, the particle yield was improved. That is, the average particle size (L
The yield when adding 3μm (DSiC particles to aluminum alloy) was 10 to zowt*, but this method improved it to 95wt%.Furthermore, because additional equipment such as carrier gas and dust collectors were no longer required, manufacturing The cost is lower and the working environment is better.
第１図及び第２図は本発明の粒子分散強化合金の製造方
法の実施例１の説明図、
第３図は粒子の平均粒径と粒子の強化合金に対する均一
分散性との関係を示す図、
第４図は各種強化合金の引張強さを示す図、第５図り本
発明の方法の実施例２の説明図、第６図は本発明の方法
の実施例５の説明図である。
図中、
１・・・発熱体
２・・・加熱炉
５・・・るつぼ
４・・・溶湯
５・・・攪拌装置
６・・・攪拌羽根
ス１５−容器
８・・・粒子
９・・・水
１０・・・スプレーガン
１１・−粉体供給装量
１２・・・凝集体
１３・・・とりべ
１４・−鋳型
１６・・・とい
（ほか２名）
第
図
９材ＪＩＳＡ７０７５今金
千ｑ框径（１ｍ）
第
図
才
図
オ６図
ΔFigures 1 and 2 are explanatory diagrams of Example 1 of the method for manufacturing a particle dispersion strengthened alloy of the present invention. Figure 3 is a diagram showing the relationship between the average particle diameter of particles and the uniform dispersibility of particles in the reinforced alloy. , FIG. 4 is a diagram showing the tensile strength of various reinforced alloys, FIG. 5 is an explanatory diagram of Example 2 of the method of the present invention, and FIG. 6 is an explanatory diagram of Example 5 of the method of the present invention. In the figure, 1... Heating element 2... Heating furnace 5... Crucible 4... Molten metal 5... Stirring device 6... Stirring blades 15 - Container 8... Particles 9... Water 10...Spray gun 11--Powder supply amount 12...Agglomerate 13...Ladle 14--Mold 16...Toi (and 2 other people) Fig. 9 Material JISA7075 Imakane 1,000 q Frame diameter (1m) Figure 6 Δ
Claims (1)
金属溶湯に添加して予備的に分散させ、しかる後該粒子
を均一に分散させるための気化性液体を該金属溶湯に噴
射することを特徴とする粒子分散強化合金の製造方法。Particles to be added to the metal as a dispersed phase are added to the molten metal to be preliminarily dispersed, and then a vaporizable liquid is injected into the molten metal to uniformly disperse the particles. A method for producing a characterized particle dispersion strengthened alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17649988A JPH0225528A (en) | 1988-07-15 | 1988-07-15 | Manufacture of grain dispersion-strengthened alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17649988A JPH0225528A (en) | 1988-07-15 | 1988-07-15 | Manufacture of grain dispersion-strengthened alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0225528A true JPH0225528A (en) | 1990-01-29 |
Family
ID=16014718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17649988A Pending JPH0225528A (en) | 1988-07-15 | 1988-07-15 | Manufacture of grain dispersion-strengthened alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225528A (en) |
-
1988
- 1988-07-15 JP JP17649988A patent/JPH0225528A/en active Pending
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