JPS6283404A - Production of composite metallic powder - Google Patents
Production of composite metallic powderInfo
- Publication number
- JPS6283404A JPS6283404A JP60221600A JP22160085A JPS6283404A JP S6283404 A JPS6283404 A JP S6283404A JP 60221600 A JP60221600 A JP 60221600A JP 22160085 A JP22160085 A JP 22160085A JP S6283404 A JPS6283404 A JP S6283404A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- powder
- metallic powder
- metal
- composited
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 85
- 239000002131 composite material Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000007789 gas Substances 0.000 claims abstract description 73
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000012159 carrier gas Substances 0.000 claims abstract description 12
- 239000002905 metal composite material Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 239000011261 inert gas Substances 0.000 abstract description 2
- 230000002140 halogenating effect Effects 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 150000004820 halides Chemical class 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 239000010409 thin film Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 229910045601 alloy Inorganic materials 0.000 description 8
- 239000000956 alloy Substances 0.000 description 8
- 229910000657 niobium-tin Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000005551 mechanical alloying Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid 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
- 238000011065 in-situ storage Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は金属複合粉末の製造法に関し、特に複合化する
元素を金属粉末の表面に均一に鍍着又は金属粉末内に均
一に熱拡散させた金属複合を
粉末片容易に、かつ経済的に製造するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for producing a metal composite powder, and in particular to a method for producing a metal composite powder, in which the elements to be composited are uniformly plated on the surface of the metal powder or uniformly thermally diffused into the metal powder. The composite is easily and economically produced in powder form.
従来の技術
従来粉末冶金等では目的に応じて各種金属粉末が用いら
れており、その内含金粉末はアトマイズ法、電解法、メ
カニカルアロイング法等により造られている。アトマイ
ズ法は溶融し、た合金を細孔よＶ流出させ、これに圧縮
ガスや水流ジェットに作用させて飛散させることにより
粉末化するものである。電解法は金属塩の水溶液を電解
して合金粉末を生成させるものである。BACKGROUND OF THE INVENTION Conventional powder metallurgy uses various metal powders depending on the purpose, and gold-containing powders are produced by atomization, electrolysis, mechanical alloying, etc. In the atomization method, a melted alloy is caused to flow out through pores, and is pulverized by being dispersed by the action of compressed gas or a water jet. In the electrolytic method, an aqueous solution of a metal salt is electrolyzed to produce an alloy powder.
またメカニカルアロイング法は異種の金属粉末をボール
ミル等で混合粉砕することにより合金粉末とするもので
ある。更に特殊々方法としては、異種金属を蒸発させ、
気体分子として衝突させることにより超微粉の合金粉末
とする方法も知られている。In the mechanical alloying method, different metal powders are mixed and pulverized using a ball mill or the like to obtain an alloy powder. Furthermore, as a special method, evaporating dissimilar metals,
A method of producing ultrafine alloy powder by colliding gas molecules is also known.
発明が解決しようとする問題点
アトマイズ法のように合金を溶融するものは、溶融合金
化が困難な元素との合金粉末を製造することができず、
特に粉末化に際し酸化等によるロスも大きい。電解法は
合金化する元素及び合金組成が制限される。′１．たメ
カニカルアロイング法は、粉砕に大きなエネルギーを必
要とする不経済なものである。しかも用途によってば粉
末表面に他元素を破着り、た複合粉末が要求されている
が上記方法は何れも粉末表面に他元素を均一に破着Ｉ−
たり、粉末内に均一に熱拡散させて複合粉末とすること
ができなかった。Problems to be Solved by the Invention Methods that melt alloys, such as the atomization method, cannot produce alloy powders with elements that are difficult to melt into alloys.
In particular, there is a large loss due to oxidation etc. during powdering. In the electrolytic method, alloying elements and alloy compositions are limited. '1. The mechanical alloying method requires a large amount of energy for grinding and is uneconomical. Moreover, depending on the application, composite powders are required in which other elements are ruptured onto the powder surface, but none of the above methods uniformly rupture other elements onto the powder surface.
In addition, it was not possible to uniformly diffuse heat within the powder to form a composite powder.
問題点を解決するための手段
本発明はこれに鑑み種々検討の結果、複合化する元素を
金属粉体の表面に均一に破着１．たり、又は金属粉末内
に均一に熱拡散させた金属複合粉末を容易に、かつ経済
的に製造することができる金属複合粉末の製造法を開発
１．たもので、金属粉末を不活性のキャリヤーガスで流
動化させて加熱してから、キャリヤーガスに複合化する
元素のハロゲン化気体と還元性ガスを混合［２、該混合
ガスと粉末表面を反応させて複合化する元素を粉末表面
に破着又は粉末内に熱拡散させることを特徴とするもの
である。Means for Solving the Problems In view of this, the present invention was developed as a result of various studies, and was developed by: 1. uniformly adhering the elements to be composited to the surface of the metal powder; 1. Development of a manufacturing method for metal composite powder that can easily and economically produce metal composite powder that is uniformly thermally diffused into metal powder. After fluidizing the metal powder with an inert carrier gas and heating it, a halogenated gas of the element to be combined with the carrier gas and a reducing gas are mixed [2. The mixed gas and the powder surface are reacted. This method is characterized in that the elements to be composited are broken onto the powder surface or thermally diffused into the powder.
即ち本発明は第１図に示すように周囲に加熱用ヒーター
（２）ヲ設け、下部に多数のガス噴出細孔（３）を設け
たガス室（４）を有する流動槽（１）を用い、ガス室（
４）に取付けた供給管（５）にバルブ（６）（７）（８
） を介１−１て不活性のキャリヤーガス（５）、複合
化する元素のハロゲン化気体（Ｂ）及び還元性ガス（Ｃ
） ｋ供給できるようにする。このようにして流動槽（
１）内に金属粉末（９）を装入１５、バルブ（６）を開
いて不活性のキャリヤーガス（Ａ）を供給し、ガス室（
４）よＶ細孔（３）を通して金属粉末（９）内に噴出さ
せ、排気管（１０）より排出させることにより、金属粉
末（９）を流動状態に保持Ｌ、これを加熱用ヒータ（２
）ニより所定温度に加熱する。続いてバルブ（７）（８
）ヲ開いて不活性のキャリヤーガス（５）に複合化する
元素のハロゲン化気体（１３）と還元性ガス（Ｃ）’に
混合し、流動する金属粉末（９）の表面と混合ガスを反
応させて、複合化する元素を金属粉末の表面に破着させ
るか、又は金属粉末内に熱拡散させて金属複合粉末とす
る。し〜かる後ヒータ（２）による加熱を止め、バルブ
（７）（８）を閉じてハロゲン化気体０３）と還元性ガ
ス（０の供給を停止して不活性のキャリヤーガス中で冷
却し、流動槽（１）より取出す。That is, the present invention uses a fluidized tank (1) having a gas chamber (4) provided with a heating heater (2) around the periphery and a large number of gas ejection pores (3) in the lower part, as shown in FIG. , gas chamber (
Attach valves (6) (7) (8) to the supply pipe (5) attached to
) through 1-1, an inert carrier gas (5), a halogenated gas (B) of the element to be complexed, and a reducing gas (C
) k supply. In this way, the fluidized tank (
1) Charge the metal powder (9) into the chamber (15), open the valve (6) to supply the inert carrier gas (A), and fill the gas chamber (
4) The metal powder (9) is maintained in a fluid state by injecting it into the metal powder (9) through the V-hole (3) and discharging it from the exhaust pipe (10), and then the metal powder (9) is heated by the heater (2).
) Heat to the specified temperature. Next, valves (7) (8
) is mixed with an elemental halogenated gas (13) and a reducing gas (C)' to be combined into an inert carrier gas (5), and the mixed gas is reacted with the surface of the flowing metal powder (9). Then, the element to be composited is broken onto the surface of the metal powder or thermally diffused into the metal powder to form a metal composite powder. After that, the heating by the heater (2) is stopped, the valves (7) and (8) are closed, the supply of the halogenated gas 03) and the reducing gas (0 is stopped, and the mixture is cooled in an inert carrier gas. Take it out from the fluidized tank (1).
作用
本発明は上記の如く金属粉末を不活性のキャリヤーガス
により流動させて加熱Ｆ〜、続いてキャリヤーガスに複
合化する元素のハロゲン化気体と還元性ガスを混合する
ことにより、金属粉末は混合ガスと均等に接触し、各金
属粉末の表面に複合化する元素を均一に破着１−たり、
各金属粉末内に複合化する元素を均一に熱拡散させるな
ど、通常の方法では製造不可能な複合粉末を容易に、か
つ経済的に製造することができる。Function: As described above, the metal powder is fluidized by an inert carrier gas and heated F~, and then the halogenated gas of the element to be complexed and the reducing gas are mixed with the carrier gas, so that the metal powder is mixed. It comes into contact with the gas evenly, and the elements to be composited are uniformly bonded to the surface of each metal powder.
By uniformly thermally diffusing the elements to be composited into each metal powder, it is possible to easily and economically manufacture composite powders that cannot be manufactured using normal methods.
また複合化する元素のハロゲン化気体を変更することに
よジ、金属粉末の表面に複合化する２種以上の元素を連
続１．て層状に破着したり、金属粉末内に複合化する２
種以上の元素を連続［−て熱拡散させて複合化させるこ
とができる。しかもこれ等の処理は何れも加熱過程で複
合化する元素のハロゲン化気体を連続的に変更すること
により容易に実施できるもので、熱的に極めて経済的な
方法である。Also, by changing the halogenated gas of the element to be composited, two or more elements to be composited can be continuously applied to the surface of the metal powder. break in layers or become composite within the metal powder2
More than one element can be composited by continuous thermal diffusion. Furthermore, all of these treatments can be easily carried out by continuously changing the halogenated gas of the element to be compounded during the heating process, and are extremely thermally economical methods.
実施例（１）
第１図に示す装置を使用Ｉ２、ＡガスにＮ２ガス、Ｂガ
スに塩素ガスを溶融錫上に通して生成］−たＳｎＣｎガ
ム及びＣガスにＮ２ガスを用い、−２００〜２０メツシ
ユのＣｕ了トマイズ粉の表面にＳｎを２０μの厚さに破
着］た。先ず流動槽内にＣｕ了トマイズ粉を装入し、Ｎ
２ガスを供給してＣ１ｌアトマイズ粉を流動化させ、と
ｆＬを２００℃に加熱して、これにＮ２ガスに対し５ｎ
ＣＡ＜ガスを１０係、Ｎ２ガスを１０係の比率で混合し
た。この混合ガスでＣｕ了トマイズ粉を１時間流動ｆＬ
処理（−たところ、第２図（イ）に示すようにＣｕ了ト
マイズ粉（１）の表面にＳｎ薄膜〔１１）を２０μの厚
さに均一に破着ｌ−た粉末が得られた。Example (1) Using the apparatus shown in FIG. 1, using the SnCn gum and N2 gas as the C gas, -200 Sn was broken to a thickness of 20 μm on the surface of ~20 mesh Cu-tomized powder. First, Cu Tomized powder is charged into a fluidized tank, and N
2 gas was supplied to fluidize the C1l atomized powder, and fL was heated to 200°C, and 5n of N2 gas was supplied to this.
CA<gas was mixed at a ratio of 10 parts and N2 gas was mixed at a ratio of 10 parts. Flow the Cu Tomized powder for 1 hour with this mixed gas.
As a result of the treatment, a powder was obtained in which a Sn thin film [11] was uniformly adhered to a thickness of 20 μm on the surface of the Cu-tomized powder (1), as shown in FIG. 2(A).
実施例（２）
実施例（１）において、Ｃｕ了トマイズ粉をＮ２ガス、
５ｎＱｔ４ガス及びＮ２ガスの混合ガスにより流動化さ
せ、２００’Ｃに１時間加熱して、第２図（イ）に示す
ようにＣｕ了トマイズ粉（１）の表面Ｋ Ｓ ｎ薄膜（
１１）を２０μの厚さに破着した後、５ｎＣｔ＜ガス及
びＮ２ガスの供給を停止し、Ｎ２ガスのみでＳｎを破着
り、りアトマイズ粉を流動６一
化させ、２２０℃［５時間加熱１．て鍛着したＳｎを総
ｉ Ｓ ｎ Ｃ１１化合物ト［、り。］、かる後７ （
１０℃にケイ温したところ第２図（ロ）１１こ示すよう
に均一にＳｎが熱拡散１．たブロンズ粉（１２）が得ら
れた。Example (2) In Example (1), Cu Tomized powder was heated with N2 gas,
It was fluidized with a mixed gas of 5nQt4 gas and N2 gas and heated at 200'C for 1 hour to form a KSn thin film (
11) to a thickness of 20μ, the supply of 5nCt< gas and N2 gas was stopped, and the Sn was broken with only N2 gas, the atomized powder was made to flow, and the powder was heated at 220°C for 5 hours. Heating 1. The forged Sn is combined with a total iSnC11 compound. ], Karugo 7 (
When heated to 10°C, Sn was uniformly thermally diffused as shown in Figure 2 (b) 11. Bronze powder (12) was obtained.
実施例（３）
ＡガスにＮ２ガス、Ｉ３ガスにＺｎＣｎガム及びＣガス
にＮ２ガスを用い、実施例（１）と同様πしてＣｕ了ト
マイズ粉？Ｎ、ガスで渾、勧化させて時間流動化処理し
た後、Ｚ ｎ Ｃ１＋ガス及びＩｆ、ガスの供給全停＋
１１、Ｎ２ガスにより流動化させながら冷却［また。そ
の結果Ｃｕ了トマイズ粉の表面にＺｎが均一に鍛着１１
、同時に粉末内に均一に熱拡散し、て黄銅粉となった。Example (3) Using N2 gas as the A gas, ZnCn gum as the I3 gas, and N2 gas as the C gas, π was used as in Example (1) to form a Cu-tomized powder. After stirring and fluidizing with N and gas, Z n C1 + gas and If, gas supply completely stopped +
11. Cooling while fluidizing with N2 gas [Also. As a result, Zn was uniformly forged on the surface of the Cu tomized powder.
At the same time, heat was diffused uniformly into the powder, resulting in brass powder.
実施例（４）
ＡガスＶＣＮ２ ）ｊ ／（、ＢガスＫ Ｎ１）ＣＡＩ
（！： ５ｎＣ４４ガスの２種のガス、ＣガスにＨ，
ガスを用い、実施例（１）と同様に（−て、Ｃ１１了ト
マイズ粉をＮ２ガスにより流動化させ、 ７５０℃に加
熱１．てＮ ｌ） Ｃｌ ４ガスを１０係、Ｎ２ガスを
２０％の比率で混合１．て流動化処理することによＶ％
第３図（イ）に示すようにＣ１１了トマイズ粉（１）に
Ｎｂの薄膜（１３）を形成１．た。次にＮｂＣ４４ガス
及びＩ（。Example (4) A gas VCN2 )j /(, B gas K N1) CAI
(!: 5nC44 gas, two types of gas, C gas and H,
Using gas, in the same manner as in Example (1), fluidize the C11 tomized powder with N2 gas and heat it to 750°C. Mix in the ratio of 1. V% by fluidization treatment
As shown in FIG. 3(A), a thin Nb film (13) is formed on the C11 atomized powder (1).1. Ta. Next, NbC44 gas and I(.
ガスの供給を停止１．て２００℃まで冷却した後、Ｎ２
ガスに５ｎＣｔ４ガス’（ｒｌＯ％、Ｈａガスヲ１０係
の比率で混合Ｉ７て流動化処理することにより、第３図
（ロ）に示すようにＣＩｌ了トマイズ粉（１）上に形成
し＊Ｎｂ薄膜（１３）上にＳｎ薄膜（１１）ｋ鍍着した
。続いて５ｎＣ４４ガスとＮ２ガスの供給を停止１−１
、Ｎ２ガスで流動化させ々がら７００℃に昇温１−ｆこ
ところ、Ｓｎ薄膜（１１）はＮｂ薄膜（１３）内に熱拡
散し、第３図（ハ）に示すようにＣｕ粉（１）上に極め
て薄いＮｂ薄膜（１３）を介１てＮｂ３Ｓｎ膜（］４）
を有する複合粉が得られた。Stop gas supply 1. After cooling to 200℃, N2
By fluidizing the gas by mixing it with 5nCt4 gas (rlO%) and Ha gas at a ratio of 10 parts, a *Nb thin film is formed on the CIL totomized powder (1) as shown in Figure 3 (b). (13) A Sn thin film (11)k was deposited on the top.Then, the supply of 5nC44 gas and N2 gas was stopped 1-1
At about 1-f, the Sn thin film (11) is thermally diffused into the Nb thin film (13) and the Cu powder ( 1) Nb3Sn film (]4) with an extremely thin Nb thin film (13) on top
A composite powder having the following properties was obtained.
この複合粉末ＵＣＩＩ−Ｎｂ３Ｓｎインサイチュ−法に
よる超電導線製造用の粉末と（−て適（−たものである
。This composite powder UCII-Nb3Sn is suitable for use in producing superconducting wires by in-situ method.
発明の効果
このように本発明は金属粉末を不活性ガスで流動化［−
１こ７土に複合化する元素のハロケン化気体と還元性ガ
スを混合することＶＣより、単独又は連続１−で通常の
方θ（では製造小川゛能な複合粉末を容易かつ経済的に
製造することができる顕著な効果を奏するものである。Effects of the Invention As described above, the present invention fluidizes metal powder with an inert gas [-
Mixing a halogenated gas and a reducing gas of the element to be composited with 1-7 soil.By using VC alone or in succession, it is possible to easily and economically produce a composite powder that is easy to manufacture. It can produce remarkable effects.
第１図は本発明方法を実施するための装置の一例を示す
説明図、第２図（（１）（ロ）に本発明方法により得ら
れる粉末の一例を示すもので、（イ）は複合化する元素
を鍛着した粉末、（ロ）は熱拡散により合金化１．た粉
末の説明図、第３図（イ）（ロ）Ｃ→は本発明方法によ
るＣ １１−Ｎ ｂ３Ｓ ｎインザーチュー用粉末の製
造過程を示すもので、（イ）はＮｂ鍍層着Ｃ１１粉仲）
はＣｕ粉上にＮｂ薄膜を介してＳｎ薄膜を鍛着したＣ
１１粉、（ハ）ばＣｋｌｌ上上Ｎ ｂ薄膜を介［１，て
Ｎｂ３Ｓｎ薄膜を形成したＣＬＩ粉の説明図である。
Ａ キャリヤーガス
Ｂ 複合化する元素のハロゲン化気体
Ｃ還元性ガス
１ 流動槽 ２ ヒーター
３ ガス噴出細孔 ４ カス室
５ （ｊｔ給管 ６．７．８ バルブ９ ＠属粉
体 １０ 排気管
１１ Ｓｎ薄膜 １２ ブロンズ粉１３ Ｎｌ）
薄膜 １４ Ｎｂ３Ｓｎ膜−１０＝Figure 1 is an explanatory diagram showing an example of an apparatus for implementing the method of the present invention, Figure 2 ((1) and (b) shows an example of powder obtained by the method of the present invention, and (a) is a composite (b) is an explanatory diagram of the powder alloyed by thermal diffusion. The figure shows the manufacturing process of powder for
is C with a Sn thin film forged on Cu powder through a Nb thin film.
FIG. 11 is an explanatory diagram of CLI powder in which a Nb3Sn thin film was formed on Ckll with an Nb thin film interposed thereon. A Carrier gas B Halogenated gas of the element to be combined C Reducing gas 1 Fluidization tank 2 Heater 3 Gas ejection pores 4 Cass chamber 5 (Jt supply pipe 6.7.8 Valve 9 @Group powder 10 Exhaust pipe 11 Sn thin film 12 bronze powder 13 Nl)
Thin film 14 Nb3Sn film -10=
Claims (1)
してから、キャリヤーガスに複合化する元素のハロゲン
化気体と還元性ガスを混合し、該混合ガスと粉末表面を
反応させて複合化する元素を粉末表面に鍍着又は粉末内
に熱拡散させることを特徴とする金属複合粉末の製造法
。Metal powder is fluidized with an inert carrier gas and heated, then a halogenated gas of the element to be composited and a reducing gas are mixed with the carrier gas, and the mixed gas is reacted with the powder surface to form a composite. A method for producing metal composite powder, characterized by plating elements on the powder surface or thermally diffusing elements into the powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60221600A JPS6283404A (en) | 1985-10-04 | 1985-10-04 | Production of composite metallic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60221600A JPS6283404A (en) | 1985-10-04 | 1985-10-04 | Production of composite metallic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6283404A true JPS6283404A (en) | 1987-04-16 |
Family
ID=16769298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60221600A Pending JPS6283404A (en) | 1985-10-04 | 1985-10-04 | Production of composite metallic powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008560A1 (en) * | 1990-11-20 | 1992-05-29 | Daidousanso Co., Ltd. | Method of making pressure-molded product from aluminum powder |
| WO1992008561A1 (en) * | 1990-11-20 | 1992-05-29 | Daidousanso Co., Ltd. | Making of pressure-molded product from aluminum powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514941A (en) * | 1974-07-01 | 1976-01-16 | Matsushita Electric Ind Co Ltd | |
| JPS5216973A (en) * | 1975-07-31 | 1977-02-08 | Natl Res Inst For Metals | Epitachisial growing method of semiconductor of family chemical compou nd |
| JPS55158267A (en) * | 1979-05-29 | 1980-12-09 | Int Standard Electric Corp | Valve metal coating method |
| JPS58181860A (en) * | 1982-04-17 | 1983-10-24 | Sumitomo Metal Ind Ltd | Diffusion and permeation treated steel product and preparation thereof |
-
1985
- 1985-10-04 JP JP60221600A patent/JPS6283404A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS514941A (en) * | 1974-07-01 | 1976-01-16 | Matsushita Electric Ind Co Ltd | |
| JPS5216973A (en) * | 1975-07-31 | 1977-02-08 | Natl Res Inst For Metals | Epitachisial growing method of semiconductor of family chemical compou nd |
| JPS55158267A (en) * | 1979-05-29 | 1980-12-09 | Int Standard Electric Corp | Valve metal coating method |
| JPS58181860A (en) * | 1982-04-17 | 1983-10-24 | Sumitomo Metal Ind Ltd | Diffusion and permeation treated steel product and preparation thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992008560A1 (en) * | 1990-11-20 | 1992-05-29 | Daidousanso Co., Ltd. | Method of making pressure-molded product from aluminum powder |
| WO1992008561A1 (en) * | 1990-11-20 | 1992-05-29 | Daidousanso Co., Ltd. | Making of pressure-molded product from aluminum powder |
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