JP5077933B2 - Method for producing fine particle composite material in which fine particle powder is compounded - Google Patents
Method for producing fine particle composite material in which fine particle powder is compounded Download PDFInfo
- Publication number
- JP5077933B2 JP5077933B2 JP2007132127A JP2007132127A JP5077933B2 JP 5077933 B2 JP5077933 B2 JP 5077933B2 JP 2007132127 A JP2007132127 A JP 2007132127A JP 2007132127 A JP2007132127 A JP 2007132127A JP 5077933 B2 JP5077933 B2 JP 5077933B2
- Authority
- JP
- Japan
- Prior art keywords
- fine particle
- powder
- composite material
- mold
- fine
- 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.)
- Expired - Fee Related
Links
- 239000010419 fine particle Substances 0.000 title claims description 35
- 239000002131 composite material Substances 0.000 title claims description 22
- 239000000843 powder Substances 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000000463 material Substances 0.000 claims description 35
- 239000002184 metal Substances 0.000 claims description 30
- 239000011812 mixed powder Substances 0.000 claims description 21
- 239000011159 matrix material Substances 0.000 claims description 19
- 238000009750 centrifugal casting Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 27
- 229910010413 TiO 2 Inorganic materials 0.000 description 14
- 238000009826 distribution Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011164 primary particle Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- SPJMAPNWDLIVRR-UHFFFAOYSA-M sodium;3-chloro-2-phenylphenolate Chemical compound [Na+].[O-]C1=CC=CC(Cl)=C1C1=CC=CC=C1 SPJMAPNWDLIVRR-UHFFFAOYSA-M 0.000 description 1
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Description
本発明内容は、金属母相と濡れ性が悪く微細な粉末を金属母相中に均一あるいは傾斜分散させた微細粒子複合材料の製造方法に関するものである。
The present invention relates to a method for producing a fine particle composite material in which a fine powder having poor wettability with a metal matrix phase is uniformly or inclined dispersed in the metal matrix phase.
金属との濡れ性が悪く微細な粉末を金属母相中に複合化することは困難である。これまで、微細粒子を金属母相に複合化する方法として、非特許文献１に示される溶湯攪拌混合法が用いられてきた。溶湯攪拌混合法とは、母相となる金属溶湯を攪拌し、攪拌中の溶湯に微細粒子粉末を少量ずつ添加することによって金属母相と微細粉末を複合化させる方法である。この方法は、金属母相中に微細粒子を均一分散させる事ができるが傾斜分散させることが不可能である欠点をもつ。また、この方法は、少量の鋳造においても攪拌時間を２時間程度必要とするため実用的でない。 It is difficult to compound a fine powder in a metal matrix with poor wettability with metal. Until now, the molten metal stirring and mixing method shown in Non-Patent Document 1 has been used as a method for compounding fine particles into a metal matrix. The molten metal stirring and mixing method is a method in which the metal matrix phase and the fine powder are combined by stirring the molten metal as a matrix phase and adding fine particle powder to the molten metal being stirred little by little. This method has the disadvantage that fine particles can be uniformly dispersed in the metal matrix but cannot be dispersed in a gradient manner. In addition, this method is not practical because a stirring time of about 2 hours is required even in a small amount of casting.
金属母相中に粒子を傾斜分散させる方法として、遠心力鋳造法が提案されている。非特許文献２に示されているように、遠心力鋳造法は、安価な設備で巨大な製品の製造が可能であるという長所を有するが、微細粒子を傾斜分散させる事が困難である欠点を有する
。
A centrifugal casting method has been proposed as a method of incliningly dispersing particles in a metal matrix. As shown in Non-Patent Document 2, the centrifugal casting method has an advantage that a huge product can be manufactured with an inexpensive facility, but it has a drawback that it is difficult to tilt and disperse fine particles. Have.
従来、微細粒子粉末などを傾斜分散させる手段として、特許文献１に示されるような放電プラズマ焼結法(ＳＰＳ法)が用いられてきた。ＳＰＳ法は、低温・短時間で微細粒子が傾斜分散した製品を作製する事ができるが、巨大な製品を製造することが不可能であることや設備費が高価である欠点を有するために実用的でない。しかしながら、微細粉末を用いた微細粒子複合材料を作製する方法は、現時点でＳＰＳ法のみである。
本発明で解決しようとする問題点は、従来の技術において、微細粒子が均一あるいは傾斜分散し、かつ製品の大きさが比較的大きな複合材料を製造できない点である。 The problem to be solved by the present invention is that, in the prior art, it is impossible to produce a composite material in which fine particles are uniform or inclined and the product size is relatively large.
発明の微細粒子粉末が複合化された微細粒子複合材料の製造方法は、金属粉末と複合化させたい微細粒子粉末が混合している混合粉末を作製し、その混合粉末を遠心力鋳造装置の型に投入して、型を回転させることによって遠心力印加および型の予備加熱を行い、回転中の型へ溶解炉で溶解された金属母材溶湯を流し込むことによって、微細粒子が母相に強固に固定され母相中に均一あるいは傾斜分散された微細粒子複合材料を製造する方法である。また、本発明は、寸法の制限がないために比較的大きな製品を製造することができる。 The manufacturing method of the fine particle composite material in which the fine particle powder of the invention is composited is produced by preparing a mixed powder in which the fine particle powder to be composited with the metal powder is mixed, and the mixed powder is a mold of a centrifugal casting apparatus. And rotating the mold to apply the centrifugal force and preheating the mold, and pouring the molten metal base material melted in the melting furnace into the rotating mold, so that the fine particles are firmly attached to the matrix phase. This is a method for producing a fine particle composite material that is fixed and uniformly or inclinedly dispersed in a matrix. In addition, the present invention can produce a relatively large product because there is no size limitation.
発明の微細粒子粉末が複合化された微細粒子複合材料の製造方法は、以下の手順でおこなわれる。
(1)金属母相と微細粒子の混合粉末を作製する。このとき、微細粒子の体積分率が異なる混合粉末を数種類作製することによって、材料内部における微細粒子体積分率の分布を制御する。
(2)遠心力鋳造装置の型を回転させ、作製した混合粉末を回転中の型に投入する。混合粉末は、微細粒子の体積分率が目的の分布になるように投入する。
(3)金属母材を溶解し、遠心力鋳造装置の型加熱炉で加熱された回転中の型に金属母材溶湯を流し込む。そのとき、型に流れ込んだ金属母材溶湯によって、混合粉末中の金属母材粉末も溶解する。その結果、微細粒子が金属母相に強固に固定される。
(4)型および材料を冷却後、型の回転を停止する。
The manufacturing method of the fine particle composite material in which the fine particle powder of the invention is compounded is performed by the following procedure.
(1) Prepare a mixed powder of metal matrix and fine particles. At this time, the distribution of the fine particle volume fraction in the material is controlled by preparing several types of mixed powders having different fine particle volume fractions.
(2) The mold of the centrifugal casting apparatus is rotated, and the produced mixed powder is put into the rotating mold. The mixed powder is introduced so that the volume fraction of fine particles has a target distribution.
(3) The metal base material is melted and the molten metal base material is poured into a rotating mold heated in a mold heating furnace of a centrifugal casting apparatus. At that time, the metal base material powder in the mixed powder is also melted by the molten metal base material flowing into the mold. As a result, the fine particles are firmly fixed to the metal matrix.
(4) Stop mold rotation after cooling mold and material.
本発明の製造方法によって、微細粒子が母相に強固に固定され、かつ母相中に均一あるいは傾斜分散したリング状の複合材料を製造することができる。さらに、本発明の製造方法は、微細粉末の体積分率分布をコントロールすることによって微細粉末が有する機能特性や複合材料の強度をコントロールすることができる。また、本発明には寸法の制限がないために比較的大きな製品を製造することができる。
According to the production method of the present invention, it is possible to produce a ring-shaped composite material in which fine particles are firmly fixed to a matrix phase and uniform or inclined and dispersed in the matrix phase. Furthermore, the production method of the present invention can control the functional characteristics of the fine powder and the strength of the composite material by controlling the volume fraction distribution of the fine powder. Also, since the present invention has no dimensional restrictions, relatively large products can be manufactured.
以下、本発明を具体化した実施例を図面を参照しつつ説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below with reference to the drawings.
図１は、具体例として横型遠心力鋳造装置の模式図を示している。本発明で使用する鋳造装置は、遠心力鋳造装置であればいかなる形式(縦型や横型など)でも良い。 FIG. 1 shows a schematic diagram of a horizontal centrifugal casting apparatus as a specific example. The casting apparatus used in the present invention may be of any type (vertical type, horizontal type, etc.) as long as it is a centrifugal casting apparatus.
図２は、金属母相と微細粒子の混合粉末を回転中の金型に投入する方法を模式的に描いた図である。図２に示されるように、微細粒子の体積分率が異なる混合粉末をいくつか作製し、それらを微細粒子の体積分率が目的の分布になるように回転中の金型へ投入する。 FIG. 2 is a diagram schematically illustrating a method of putting a mixed powder of a metal matrix and fine particles into a rotating mold. As shown in FIG. 2, several mixed powders having different volume fractions of fine particles are produced, and they are put into a rotating mold so that the volume fraction of fine particles has a target distribution.
図３は、溶解した金属母材溶湯を回転中の金型へ流し込む方法を示した模式図である。これによって、混合粉末中の金属母相粉末も溶解し、微細粒子が金属母相に強固に固定される。 FIG. 3 is a schematic view showing a method of pouring a molten metal base metal melt into a rotating mold. As a result, the metal matrix powder in the mixed powder is also dissolved, and the fine particles are firmly fixed to the metal matrix.
図４は、一次粒子径が約３００nmであるＴｉＯ２粒子が純Ａｌを母相とするリング状材料表面に傾斜分布したＡｌ-ＴｉＯ２複合材料の巨視的な写真である。写真右はＡｌ-ＴｉＯ２複合材料であり、写真左は比較材である純Ａｌ遠心力鋳造材である。このＡｌ-ＴｉＯ２複合材料は、重力倍数Ｇ＝５０（Ｇ＝１が重力場）、純Ａｌ母材の溶解温度９００℃および金型予備加熱温度５００℃の条件で遠心力混合粉末法にて作製された。Ａｌ-ＴｉＯ２複合材料の表面は、比較材である純Al遠心力鋳造材の材料表面よりも白色を有している。これは、遠心力混合粉末法にて作製した材料の表面に白色であるＴｉＯ２粒子が分散しているためである。 FIG. 4 is a macroscopic photograph of an Al—TiO 2 composite material in which TiO 2 particles having a primary particle diameter of about 300 nm are distributed on the surface of a ring-shaped material having pure Al as a parent phase. The photo on the right is an Al—TiO 2 composite material, and the photo on the left is a pure Al centrifugal cast material that is a comparative material. This Al—TiO 2 composite material is obtained by a centrifugal mixed powder method under the conditions of gravity multiple G = 50 (G = 1 is a gravitational field), melting temperature of pure Al base material 900 ° C. and mold preheating temperature 500 ° C. It was made. The surface of the Al—TiO 2 composite material is whiter than the material surface of the pure Al centrifugal cast material that is a comparative material. This is because white TiO 2 particles are dispersed on the surface of the material produced by the centrifugal force mixed powder method.
図５は、遠心力混合粉末法によって作製したＡｌ-ＴｉＯ２複合材料の材料表面における微細組織写真（左）とＴｉ分布を示した写真（右）である。ＴｉＯ２粒子は材料表面に凝集した形で分散していることが分かる。これより、遠心力混合粉末法は微細粒子が母相中に複合化された微細粒子複合材料の製造に適していることが分かる。 FIG. 5 is a microstructural photograph (left) and a photograph (right) showing the Ti distribution on the material surface of the Al—TiO 2 composite material produced by the centrifugal powder mixing method. It can be seen that the TiO 2 particles are dispersed in an aggregated form on the material surface. This shows that the centrifugal mixed powder method is suitable for the production of a fine particle composite material in which fine particles are combined in a matrix.
図６は、遠心力混合粉末法によって作製したＡｌ-ＴｉＯ２複合材料内部のビッカース硬さ分布と材料表面のビッカース硬さを示したグラフである。実線はＡｌ-ＴｉＯ２複合材料内部の硬さ分布を示し、破線は材料表面の硬さを示す。また、横軸はリング状材料の内側からの距離を材料厚さで規格化した値である。すなわち、０．０が材料内側、０．５が材料中央および１．０が材料表面を示している。このグラフより、材料表面の硬さは、材料内部の硬さに比べて高いことが分かる。これは、ＴｉＯ２粒子が材料表面に分布しているために、材料表面の強度が向上したことに起因する。すなわち、遠心力混合粉末法にて微細粒子の分布をコントロールすることによって、材料強度の分布もコントロールすることができる。 FIG. 6 is a graph showing the Vickers hardness distribution inside the Al—TiO 2 composite material produced by the centrifugal force mixed powder method and the Vickers hardness of the material surface. The solid line indicates the hardness distribution inside the Al—TiO 2 composite material, and the broken line indicates the hardness of the material surface. The horizontal axis is a value obtained by normalizing the distance from the inside of the ring-shaped material by the material thickness. That is, 0.0 indicates the inside of the material, 0.5 indicates the center of the material, and 1.0 indicates the material surface. From this graph, it can be seen that the hardness of the material surface is higher than the hardness inside the material. This is because the strength of the material surface is improved because the TiO 2 particles are distributed on the material surface. That is, the distribution of the material strength can be controlled by controlling the distribution of fine particles by the centrifugal mixed powder method.
本発明は上記実施例に制限されるものではなく、その趣旨を逸脱しない範囲で適宜変更して適用可能である。 The present invention is not limited to the above-described embodiments, and can be applied with appropriate modifications without departing from the spirit thereof.
本発明は、微細粒子を複合化した複合材料製造等の分野に利用可能である。 The present invention can be used in fields such as composite material production in which fine particles are combined.
Claims (1)
A mixed powder in which fine powder particles to be compounded with a metal powder as a base material are mixed, and the mixed powder is put into a mold of a centrifugal casting apparatus, and centrifugal force is applied and rotated by rotating the mold. a preliminary heating of the mold, by pouring a melt of the metal matrix dissolved in a melting furnace into the mold during rotation, uniformly or firmly fixed to the mother phase in which fine particles made of the base material parent phase A method for producing a fine particle composite material dispersed in an inclined manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007132127A JP5077933B2 (en) | 2007-05-17 | 2007-05-17 | Method for producing fine particle composite material in which fine particle powder is compounded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007132127A JP5077933B2 (en) | 2007-05-17 | 2007-05-17 | Method for producing fine particle composite material in which fine particle powder is compounded |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008284589A JP2008284589A (en) | 2008-11-27 |
| JP5077933B2 true JP5077933B2 (en) | 2012-11-21 |
Family
ID=40144808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007132127A Expired - Fee Related JP5077933B2 (en) | 2007-05-17 | 2007-05-17 | Method for producing fine particle composite material in which fine particle powder is compounded |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5077933B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI759108B (en) * | 2021-02-17 | 2022-03-21 | 明志科技大學 | Speed-adjustable powder optical inspection system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6315761B2 (en) * | 2012-11-30 | 2018-04-25 | 国立大学法人 名古屋工業大学 | Self-lubricating metal composite material and self-lubricating metal matrix composite material excellent in strength, lubricity and wear resistance, and method for producing the metal composite material and metal matrix composite material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58116968A (en) * | 1981-12-30 | 1983-07-12 | Kubota Ltd | Centrifugal casting method for wear-resistant castings |
| JPH0892671A (en) * | 1994-09-27 | 1996-04-09 | Isuzu Motors Ltd | Method for producing metal matrix composite material |
| JP4045712B2 (en) * | 2000-01-17 | 2008-02-13 | トヨタ自動車株式会社 | Method for producing metal matrix composite material |
| JP2003112251A (en) * | 2001-09-28 | 2003-04-15 | Ueda Seni Kagaku Shinkokai | Ferromagnetic particle dispersion type magnetical ramp function material and method of manufacturing the same |
| JP2008049399A (en) * | 2006-07-27 | 2008-03-06 | Iwate Industrial Research Center | Preform manufacturing method, preform, and cast product using preform |
-
2007
- 2007-05-17 JP JP2007132127A patent/JP5077933B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI759108B (en) * | 2021-02-17 | 2022-03-21 | 明志科技大學 | Speed-adjustable powder optical inspection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008284589A (en) | 2008-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2013166982A (en) | Method for producing functionally gradient material by using both sintering method and casting method | |
| CN101199989B (en) | Method for Continuous Casting Particle Reinforced Metal Matrix Composites under Different Frequency Composite Electromagnetic Field | |
| CN101070571B (en) | Method for manufacturing composite material for carbon nano material and metal material | |
| US20160273075A1 (en) | Aluminium alloy refiner and preparation method and application thereof | |
| CN105568036B (en) | Preparing method of high-silicon aluminum composite material | |
| CN104668553A (en) | Alloyed powder for directly printing metal parts in 3D (three-dimensional) manner and preparation method of alloyed powder | |
| JP2011115860A (en) | Method for producing cast part | |
| CN104532068A (en) | Nano TiC ceramic particle reinforced aluminum matrix composite and preparation method thereof | |
| JP5077933B2 (en) | Method for producing fine particle composite material in which fine particle powder is compounded | |
| CN101704075A (en) | Method for synthesizing aluminum-based composite material by multielement magnetic field combined fusant reaction | |
| CN109957685A (en) | High-dispersion TiB2Preparation method of/A356 composite material | |
| CN106244866A (en) | A kind of preparation method of nano TiN reinforced aluminum matrix composites | |
| CN101368237A (en) | A kind of preparation method of silicon particle reinforced zinc-based composite material | |
| CN102990046A (en) | Method for refining pure aluminum from Al-5% Ti-1%B intermediate alloy | |
| CN104232954A (en) | Device and method for preparing composite material by adopting semi-solid stirring | |
| CN104326757B (en) | In-situ Mullite Whisker strengthens method and the mullite crystal whisker enhancing air brick of air brick | |
| CN100366365C (en) | Hollow ceramic ball closed-cell foam metal part and preparation method thereof | |
| WO2015104613A1 (en) | Method for producing metal matrix composite materials having a globular structure and comprising ceramic particles | |
| JP5527655B2 (en) | Method for producing functionally graded material in which compound particles are graded and dispersed | |
| RU2425163C2 (en) | Procedure for introduction of strengthening particles into aluminium alloys | |
| CN103924116B (en) | A kind of low-voltage pulse magnetic field effect is lower to improve the method that SiC particulate is distributed in magnesium-based composite material | |
| CN106544531A (en) | A kind of process of In-situ Synthesis TiC Particle refining aluminum alloy solidified structure | |
| CN102746004A (en) | Slag dam for aluminum-sol-combined tundish | |
| CN108385040B (en) | A kind of chopped carbon fiber enhancing magnesium-aluminum-based composite material and preparation method | |
| CN102433493B (en) | Preparation method of ceramic particle dispersion hot-pressing sintered metal-nano ceramic composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20100511 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20100517 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120221 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120327 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120514 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20120724 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20120822 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20150907 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5077933 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |