JPH01242707A - Production of porous member - Google Patents
Production of porous memberInfo
- Publication number
- JPH01242707A JPH01242707A JP6819188A JP6819188A JPH01242707A JP H01242707 A JPH01242707 A JP H01242707A JP 6819188 A JP6819188 A JP 6819188A JP 6819188 A JP6819188 A JP 6819188A JP H01242707 A JPH01242707 A JP H01242707A
- Authority
- JP
- Japan
- Prior art keywords
- porous body
- porous
- capsule
- powder
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 27
- 239000000843 powder Substances 0.000 claims abstract description 20
- 239000002775 capsule Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 238000003801 milling Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 abstract description 8
- 238000007796 conventional method Methods 0.000 abstract description 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 2
- 239000010935 stainless steel Substances 0.000 abstract description 2
- 239000007858 starting material Substances 0.000 abstract 2
- 229910001069 Ti alloy Inorganic materials 0.000 abstract 1
- 238000009849 vacuum degassing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000002245 particle Substances 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001513 hot isostatic pressing Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、所定形状の多孔質部材の作製方法に関し、特
に、複雑な形状を有し、強固に固着した多孔質成形体金
属部材を製造する方法に関する。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a method for producing a porous member having a predetermined shape, and in particular, to a method for producing a porous molded metal member having a complex shape and firmly fixed. Regarding how to.
［従来の技＃ｔ］
従来、多孔質体の製造のためには、（１）原料粉末をプ
レスした後に焼結し製品を作製するもの、■ホットプレ
ス方式により製品を作製するものがある。然し乍ら、（
１）の方法では、プレスする形状に限界があり、また、
プレスにより形状を保持させるためには、いびつ（歪）
の形状の原料粉末を使用しなければならψ゛、空孔形状
が均一にならない、さらに、大きな空孔径の多孔質成形
体を製造することが回加である。また、（りの方法では
、製造可能な多孔質体形状に限界があり、複雑な形状体
の！！！造は非常にコストが高くなるものである。[Conventional Technique #t] Conventionally, there are two methods for producing porous bodies: (1) producing a product by pressing raw material powder and then sintering it, and (2) producing a product by a hot press method. However, (
In method 1), there is a limit to the shape that can be pressed, and
In order to maintain the shape by pressing, distortion is required.
If a raw material powder with a shape of ψ゛ is used, the shape of the pores will not be uniform, and furthermore, manufacturing a porous molded body with a large pore diameter requires repetition. In addition, with this method, there is a limit to the shape of the porous body that can be manufactured, and manufacturing a body with a complicated shape results in a very high cost.
また、多孔質体を製造４゛る場合、単に、高温処理する
だけでは、固着強度に限界があり、大粒径の粉末を強固
に固着させることができないこと等の欠点が兄られる。Furthermore, when producing a porous body, there is a limit to the fixing strength simply by high-temperature treatment, and there are disadvantages such as the inability to firmly fix powders with large particle diameters.
［発明が解決しようとする問題点］
本発明は、複雑な形状を有する多孔質体を低コストで製
造できる方法を提供することを］」的とｔ−る、また、
本発明は、通常の製造方法では不可能又は非常に困難な
大きな空孔径のものや 複雑形状の多孔質体をＨＩＰ（
Ｈｏｔ ｌ５ｏｓｔａｔｉｃ Ｐｒｅｓｓｉｎｇ：熱間
等方圧加圧法）を利用することにより、容易に且つ低コ
ストで製造することのできる方法を提供することを目的
とする０本発明は、通常の製造方法では製造困難な材質
の多孔質体が製造可能な方法を提供することを目的とす
る。[Problems to be Solved by the Invention] The present invention aims to provide a method for producing a porous body having a complicated shape at low cost.
The present invention enables HIP (
The purpose of the present invention is to provide a method that can be manufactured easily and at low cost by using hot isostatic pressing (hot isostatic pressing method). An object of the present invention is to provide a method by which a porous body made of a material that can be manufactured.
［発明の構成］
Ｅ問題点を解決するための手段］
前記のように従来不ｉｉｉ能又は製造困難な材質の多孔
質体或いは従来不可能又は製造内性な形状の多孔質体を
製造するために、本発明は、所定形状の多孔質部材の作
製方法において、原料粉末を金属力ｌセルに充填し、真
空に脱気した後に、該カプセルをンールドし、ＨＩＰ処
理し、焼結した）ＩＩＰ処理成形された多孔質成形体を
得、次に、この多孔質成形体を機械加工により所望形状
に成形加工し、更に、ケミカルミーリング処理しで、前
記成形加Ｉに、Ｌり牛したバリを除去４る、−とを特徴
と４“る所定形状の多孔質部材の作製Ｊｊ法である。[Structure of the Invention] Means for Solving Problem E] As mentioned above, to manufacture a porous body made of a material that is conventionally impossible or difficult to manufacture, or a porous body having a shape that is conventionally impossible or difficult to manufacture. In a method for producing a porous member having a predetermined shape, the present invention provides a method for producing a porous member having a predetermined shape, in which raw material powder is filled into a metal cell, degassed in a vacuum, and then the capsule is rolled, subjected to HIP treatment, and sintered. A processed porous molded body is obtained, and then this porous molded body is molded into a desired shape by machining, and is further subjected to chemical milling treatment to remove the milled burrs from the molding process I. This is a Jj method for producing a porous member having a predetermined shape, which is characterized by removals 4 and 4.
［作用］
本発明は、粉末金属等の原料粉末による多孔質体を作製
４るために、ＨＩＰ（熱間静水圧ルス、Ｈ。[Function] The present invention uses HIP (Hot Isostatic Pressure, H.
ｔ ｌ５ｏｓｔａｔｉｃ Ｐｒｅｓｓｉｎｇ）を利用４
る技術を確立したものであり、ＨＩＰ処理で成形した多
孔質体を機械油［：にかけ、成形肩■二４−ると、その
表面に多孔質により生じる多くのバリが表面に出るが、
適当なケミカルミーリングによりそれらをうまく除去で
きることが、本発明者により発見されたものである。こ
れにより、容易に、所望の形状の多孔質体を製造４−る
技術を確立できたものである。tl5ostatic Pressing)4
When a porous body formed by HIP treatment is soaked in machine oil, many burrs caused by the porosity appear on the surface of the molded body.
It has been discovered by the inventor that they can be successfully removed by suitable chemical milling. As a result, it was possible to establish a technique for easily manufacturing a porous body of a desired shape.
本発明による多孔質体の製造方法は、例えば、スデンレ
ス製、軟鋼製などの金属カブトルを用いて、多孔質成形
体の原料粉末、例えば、金属粉末（例えば、チタン系合
金粉末原料）を真空封入し、その金属の固着に必要な温
度範囲でＨＩＰ処理するものである。In the method for producing a porous body according to the present invention, a raw material powder for a porous molded body, for example, a metal powder (for example, a titanium-based alloy powder raw material) is vacuum sealed using a metal captol made of stainless steel or mild steel. Then, the HIP treatment is performed within the temperature range necessary for the metal to solidify.
本発明に用いる金属カプセルは、任意の材質のものでよ
いが、原料粉末は、所望の多孔質体の特性を満たＣ材質
の球状粉末を使用す゛ることか好適である。そのような
好適な球状粉末の製造は、ＰＲＥＰ法（プラズマ回転電
極法）、ガスアト°？イズ法などの球状粉末の製造技術
により、容易に製造できる。The metal capsule used in the present invention may be made of any material, but it is preferable to use a spherical powder of C material as the raw material powder, which satisfies the desired characteristics of the porous body. The production of such suitable spherical powders can be carried out by the PREP method (plasma rotating electrode method), the gas at °? It can be easily manufactured using spherical powder manufacturing techniques such as the Izu method.
、−の原料粉末の材質、粒径及び所望の多孔置体製品の
空孔径、強度などからＨＩＰ処理条件を適宜選定し、Ｈ
ＩＰ処理を行なう。, HIP processing conditions are appropriately selected based on the material and particle size of the raw material powder and the pore size and strength of the desired porous body product.
Performs IP processing.
次に、ＨＩＰ処理により成形した多孔質成形体を所望の
製品形状に機械加工により成形加工４゛る。Next, the porous molded body formed by HIP treatment is machined into a desired product shape.
この機械油Ｅにおいて、多くのバリが多孔質体表面に生
じるが、このバリをケミカルミーリングにより化学的に
除去して、最終製品とする。In this machine oil E, many burrs are generated on the surface of the porous body, but these burrs are chemically removed by chemical milling to obtain a final product.
更に、本発明により、ＨＩＰ処理のための加圧力を変化
させることにより、任意の粒径の原料金属粉末を任意の
固着力で多孔質体を製造できる。換言−れば、所望の空
孔寸法を有す゛る多孔質体を強固な固着力を有するよう
に製造できる。Furthermore, according to the present invention, by changing the pressing force for HIP treatment, a porous body can be manufactured using raw metal powder of any particle size and with any adhesion force. In other words, a porous body having a desired pore size and strong adhesion can be produced.
また、本発明方法においては、ＨＩＰ処理であるので等
方性の加圧力を使用するために、成形された多孔質体は
、均一に、かつ強固に固着されたものであり、後の機械
加工でも耐える多孔質体を製造できる。In addition, in the method of the present invention, since the HIP process is performed, isotropic pressure is used, so the molded porous body is uniformly and firmly fixed, and the subsequent machining process is difficult. It is possible to produce porous materials that can withstand even the most severe conditions.
本発明により製造される多孔質体は、コニカル（焼結）
フィルター、軸受は等の立体的形状を有する多孔質体或
いは多孔質体が有効な生体置換材等の製造に利用でき、
また、その他多方面で使用される可能性を有するもので
ある。また、本発明による多孔質体の製造Ｈ法は、品質
の安定、任意の材料、形状に対応でき非常に多方面で応
用できるものである。The porous body produced according to the present invention is conical (sintered)
Porous bodies with three-dimensional shapes such as filters and bearings can be used to produce effective biological replacement materials, etc.
Moreover, it has the possibility of being used in many other fields. Further, the method H for producing a porous body according to the present invention has stable quality, can be made of any material and shape, and can be applied in a wide variety of fields.
次にその具体的な例により、本発明による多孔質体の製
造フｊ法を説明する。Next, a method for producing a porous body according to the present invention will be explained using a specific example.
［実施例］ 図により人工骨の製造方法を説明する。[Example] A method for manufacturing an artificial bone will be explained with reference to figures.
ステンレス合金製の）ＩＩＰ処理用カプセル１の中に先
寸゛原料金属粉末（直径１０００μｍｌＩ？Ｉ後のＴｉ
−６Ａｊ！−４Ｖ合金（７）ＰＲＥＰ粉末）２を入れ、
その内部を真空に排気し、シールド３し、ＩＩＰ処理し
た。このシールドのためには、例えば、′重子ビーノ、
溶接機を使用し、カプセル１内を真空に引いて密封し、
Ａ図に示を断面の構成物を作製４る。The raw metal powder (diameter 1000μml) is placed in a capsule 1 for IIP treatment (made of stainless steel alloy).
-6Aj! -4V alloy (7) PREP powder) 2 is added,
The inside was evacuated to vacuum, shielded 3, and subjected to IIP treatment. For this shield, e.g.
Using a welding machine, vacuum the inside of capsule 1 and seal it.
4. Fabricate a structure with the cross section shown in Figure A.
次に、９００〜９５０℃程度の温度範囲に、加熱し、加
圧力０．１〜２− Ｏｋｇｆ／ｍ”程度の適当な圧力で
、１時間前保持し、ＨＩＰ処理を行い、Ｂ図の如き断面
の焼結多孔質体を得た。Next, it is heated to a temperature range of about 900 to 950 degrees Celsius, held at an appropriate pressure of about 0.1 to 2-Okgf/m'' for 1 hour, and then subjected to HIP treatment, as shown in Figure B. A cross-sectional sintered porous body was obtained.
この焼結多孔質体から、カプセル１と共に一部多孔質体
を機械加二［により除去しながら、所定の形状の例えば
、０図の斜視図に示す形状の多孔質体４に成形加工１−
る。From this sintered porous body, while removing part of the porous body together with the capsule 1 by mechanical processing, it is formed into a porous body 4 having a predetermined shape, for example, the shape shown in the perspective view of Figure 0.
Ru.
この機械加工により成形した多孔質体４は、Ｅ図の断面
図に示すように、表面にバリ５を多数持つものである。The porous body 4 formed by this machining has many burrs 5 on its surface, as shown in the cross-sectional view of Figure E.
従って、更に、多孔質体４をケミカルミーリングにより
、適当な条件で加工処理して、このバリを除去すると、
Ｄ図に示す多孔質体４が得られる。これは、Ｆ図で示す
ような空孔構造６０表面構造を有する多孔質体であり、
表面は平坦で使用し易いものである。Therefore, if the porous body 4 is further processed by chemical milling under appropriate conditions to remove this burr,
A porous body 4 shown in Figure D is obtained. This is a porous body having a pore structure 60 surface structure as shown in diagram F,
The surface is flat and easy to use.
［発明の効果］
本発明による多孔質体の製造方法は、次のような著しい
技術的効果が得られる。[Effects of the Invention] The method for producing a porous body according to the present invention provides the following significant technical effects.
第１に、通常の製造方法では不可能又は非常に困難な形
状の多孔質体を安価に製造できる。First, porous bodies with shapes that are impossible or extremely difficult to produce using normal production methods can be produced at low cost.
第２に、従来の製造方法では製造困難な材質の多孔質体
が製造できる。Second, a porous body made of a material that is difficult to manufacture using conventional manufacturing methods can be manufactured.
第３に、ＨＩＰ処理の加圧力を変化させることにより、
所望の粒径を持つ多孔質体を強固な固着力を持って容易
に作製できる。Thirdly, by changing the pressure of HIP treatment,
A porous body having a desired particle size and strong adhesion can be easily produced.
第４に、任意の材料で形状に対応して、異形状の多孔質
体を製造できる。Fourthly, a porous body having an irregular shape can be manufactured using any material according to the shape.
以上の特質から、本発明方法は、未だに実現されていな
いような大きな寸法のフィルター、軸受け、生体置換体
等を、多孔質体の孔寸法を制御して得ることのできる方
法を提供できる。Based on the above characteristics, the method of the present invention can provide a method that can control the pore size of a porous body to obtain large-sized filters, bearings, biological substitutes, etc. that have not yet been realized.
図は、本発明によるＨＩＰ法による多孔質体の製造Ｊｊ
法を、製造１：程の順次に示したものである。
特許出願人 住友重機械工業株式会社復代理人 弁
理士 倉 持 裕（外１名）Ｐ１ビ過ｌ９
図
手読補正書（１１ツ）
昭和６３年１０月１＋［１
特許庁艮官 古 川 文 毅 殿
１、事件の表示
昭和６３年特許願第６８１９１号
２６発明の名称
多孔質部材の作製方法
３、補正をする者
事件との関係 出願人
住所 東京都丁°代１１１区大手町二丁１１２番１号名
称 （２１０）住友重機械−Ｅ業株式会社代表者 合
［ｌ 茂
４、代理人
住所〒１０１東京都千代ＩＩＩ区神［０須１１１１１１
Ｆ１丁目２番地ｌ−１邦・四国ビル３Ｆ
５、補正命令のＥＩ付
自 発
７、補ＩＦの内容
（１）明細書の第９百第２行［］の［図は、本発明、６
゜１を［第１図は、本発明１８．］に訂正する。
（２）［３’ｆｆｒ／ｉ中（１） ［ＩＩ ］ ヲ［ｍ
１１１Ｊ ］ ニ、ＪｉＥ−１−ル。
８、添付書類の目録
訂１１ミした図面The figure shows the production of a porous body by the HIP method according to the present invention.
The method is shown in the order of production 1:. Patent applicant Sumitomo Heavy Industries Co., Ltd. sub-agent Patent attorney Hiroshi Kuramochi (1 other person) P1 Via 19 Manual reading amendment (11) October 1986 1 + [1 Patent Office official Furukawa Fumi Tsuyoshi Tono 1, Indication of the case 1988 Patent Application No. 68191 26 Name of the invention Method for producing a porous member 3, Person making the amendment Relationship to the case Applicant address 112 Otemachi 2-chome, 111-ku, Chodai, Tokyo Number 1 Name (210) Sumitomo Heavy Industries - Representative of E-Gyo Co., Ltd.
[l Shigeru 4, agent address: Kami, Chiyo III Ward, Tokyo 101 [0su 111111]
F1-2-1-1 Koku-Shikoku Building 3F 5, Self-issued with EI of amendment order 7, Contents of supplementary IF (1) Line 900, line 2 of the specification
゜1 [Figure 1 shows the present invention 18. ] to be corrected. (2) [3'ffr/i (1) [II] wo [m
111J] D, JiE-1-L. 8. Drawings with revised inventory of attached documents
Claims (1)
金属カプセル中に充填し、真空に脱気した後に、該カプ
セルをシールドし、ＨＩＰ処理し、焼結したＨＩＰ処理
成形された多孔質成形体を得、次に、この多孔質成形体
を機械加工により所定形状に成形加工し、更に、得られ
た多孔質成形体の表面をケミカルミーリング処理し、前
記成形加工により生じたバリを除去することを特徴とす
る所定形状の多孔質部材の作製方法。In a method for producing a porous member having a predetermined shape, a raw material powder is filled into a metal capsule, the capsule is degassed in a vacuum, the capsule is shielded, the HIP process is performed, and the porous molded body is sintered. Next, this porous molded body is molded into a predetermined shape by machining, and the surface of the obtained porous molded body is further subjected to chemical milling treatment to remove burrs generated by the molding process. A method for producing a porous member having a predetermined shape, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6819188A JPH01242707A (en) | 1988-03-24 | 1988-03-24 | Production of porous member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6819188A JPH01242707A (en) | 1988-03-24 | 1988-03-24 | Production of porous member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01242707A true JPH01242707A (en) | 1989-09-27 |
Family
ID=13366645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6819188A Pending JPH01242707A (en) | 1988-03-24 | 1988-03-24 | Production of porous member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01242707A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240247A (en) * | 1975-09-25 | 1977-03-29 | Akashi Seisakusho Co Ltd | Working method of gas permeability much water comprising materials |
-
1988
- 1988-03-24 JP JP6819188A patent/JPH01242707A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5240247A (en) * | 1975-09-25 | 1977-03-29 | Akashi Seisakusho Co Ltd | Working method of gas permeability much water comprising materials |
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