WO2006062039A1 - 金属製品の製造方法および金属製品 - Google Patents
金属製品の製造方法および金属製品 Download PDFInfo
- Publication number
- WO2006062039A1 WO2006062039A1 PCT/JP2005/022179 JP2005022179W WO2006062039A1 WO 2006062039 A1 WO2006062039 A1 WO 2006062039A1 JP 2005022179 W JP2005022179 W JP 2005022179W WO 2006062039 A1 WO2006062039 A1 WO 2006062039A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- metal
- powder
- metal product
- product
- sintered
- Prior art date
Links
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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/06—Metallic powder characterised by the shape of the particles
- B22F1/068—Flake-like particles
-
- 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
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
- B22F2009/044—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling by jet milling
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12014—All metal or with adjacent metals having metal particles
Definitions
- the present invention relates to a metal product manufacturing method and metal product in which metal powder is molded and sintered into a predetermined shape.
- a method of manufacturing a metal product of a predetermined shape there are forging, forging, rolling, squeeze-out, etc., but a special material such as one having a precise and complicated shape, or a magnetic part, etc.
- a powder metallurgy method is used in which metal powder (powder) is used as a metal material, pressed into a predetermined shape to obtain a green compact, and then the green compact is heated and sintered. Is often used.
- a metal powder having a particle diameter of 1 ⁇ m to 100 ⁇ m manufactured by an atomizing method or the like is mainly used (see Patent Document 1).
- Metal powder produced by the atomization method is a force in which the powder particles are almost spherical. This spherical powder is cast by pouring into a mold with less friction between the powder particles and high fluidity. It was convenient to do. For this reason, spherical powder is mainly used in powder metallurgy!
- FIG. 5 schematically shows a manufacturing process of a metal product by conventional powder metallurgy.
- spherical metal powder 11 manufactured by an atomizing method or the like is used as a sintering material.
- the metal powder 11 is molded and solidified into a predetermined shape by press molding using a mold (compact molding).
- a binder (binding agent) is usually used. Noinda is mixed into the metal powder.
- spherical granules (cluster spheres) of a predetermined size are granulated with metal powder and a binder, and this granulated body is press-molded into a predetermined shape.
- the formed green compact (molded and solidified product) 31 is subjected to a sintering treatment at a high temperature after undergoing a drying process or the like. As a result of this sintering, the powder particles of the green compact 31 are partially fused (diffused) and united, and finally a metal product 32 having a fixed shape is obtained.
- Patent Document 1 JP 2002-294308 A Disclosure of the invention
- the spherical metal powder obtained by the atomizing method has a limitation in densification that the porosity of the pressed powder compact is large. For this reason, it has been difficult to obtain a metal product that requires a high degree of mechanical strength or a metal product that requires a dense structure in the material.
- the pressed green compact is consolidated by consolidation of powder particles by sintering, and this sintered body is in a state in which the powder particles substantially maintain their respective particle shapes. It has a granular structure that has been condensed. This granular structure is peculiar to powder metallurgy, but such a structural structure has a problem that it is brittle with low mechanical strength, particularly impact resistance. For this reason, metal products that require a high degree of mechanical strength are often produced by methods other than powder metallurgy, such as forging, rolling, and extrusion.
- Metal products are often required to have a material with an amorphous structure such as amorphous or a dense structure without continuous fine voids.
- Powder metallurgy with a granular structure cannot be applied to this requirement.
- the sintering is carried out at a sufficiently high temperature for a sufficient amount of time, the voids between the granular structures can be reduced. In this case, however, a sintering process at a high temperature for a long time is required. Problems arise.
- the present invention has been made in view of the technical problems as described above, and the object thereof is to enable high densification of the tissue structure, which has been difficult to realize with conventional powder metallurgy, For example, metal products with high mechanical strength, especially high impact resistance, can be produced by powder metallurgy.
- Another object of the present invention is to provide a metal product that is a powder metallurgy product but has a fine structure and excellent mechanical strength.
- the present invention provides the following solutions.
- a method for producing a metal product in which a metal powder is press-molded into a predetermined shape and then fused between the powder particles of the molded body by sintering.
- a method for producing a metal product characterized by using random amorphous metal flakes formed by crushing with a high-speed gas swirl flow of a jet mill.
- random amorphous flaky metal fine powder formed by crushing a metal pulverizer with a high-speed gas swirl flow of a jet mill has a predetermined size.
- a method for producing a metal product characterized in that granulation is further performed, the granulated body is molded into a predetermined shape with a molding die, and then the molded body is sintered.
- a metal made by the method of the above means (1) or (2)
- [0017] (4) Random amorphous flakes formed by crushing a metal crushed material with a high-speed gas swirl flow, with a spherical granular metal powder as the main material and a particle size smaller than that of the metal powder.
- the powder particles of the main material are sintered in contact with each other, and the powder particles of the auxiliary material are filled in the gaps between the powder particles of the main material.
- a metal product characterized by having a structure that is sintered in a state of contact.
- the porosity of the press-molded green compact can be reduced. o This is due to the use of a powder material with a unique shape and properties formed by crushing a metal pulverizer with a jet mill high-speed gas swirl flow, that is, random amorphous flaky metal fine powder. In addition, the shape retention strength of the green compact can be ensured even when the amount of noinda used is small or no binder is used.
- the pressed green compact is mixed and dispersed as an auxiliary material between the particles of the spherical metal powder as the main material.
- the spherical metal powder forms a three-dimensional network (or lattice) skeletal structure, and the amorphous flaky metal fine powder is formed in the gap between the skeletal structures.
- a filled tissue structure is formed.
- FIG. 1 is a process schematic diagram schematically showing a method for manufacturing a metal product according to a first embodiment of the present invention. It is.
- the present invention relates to a metal product manufacturing method and metal product in which a metal powder is pressed into a predetermined shape and then fused between the powder particles of the molded body by sintering, and the metal powder used therefor
- the body has the following characteristics.
- metal fine powder 10 pulverized by a jet mill is used as the metal powder as the molding material.
- the jet mill pulverizes metal pulverized materials by collision of the crushed materials with a high-speed gas swirl flow.
- amorphous flaky metal fine powder 10 having a random shape is generated.
- This metal fine powder 10 is non-spherical and random in powder particle shape, so the size cannot be defined on the same scale as the conventional spherical granular powder, but it is approximately 0 .: m ⁇ several 10 / zm equivalent It is pulverized into fine particles.
- the metal fine powder 10 is formed into a compact body (molded and solidified product) 21 having a predetermined shape by press molding (pressure molding) using a mold. At the time of compacting, the metal fine powder 10 is shaped into a predetermined shape while the irregular flaky particle shape is freely deformed by molding pressure and is shaped to fill the gaps between the powder particles. Is done.
- the porosity between the powder particles can be reduced. Furthermore, since the powder particles are folded and solidified in a state where they are complicatedly entangled with each other, shape retention after molding can be achieved even if the amount of binder used is small or no binder is used. By increasing the strength, it is possible to obtain a green compact 21 that is less prone to chipping and cracking.
- the produced green compact 21 is a force in which the powder particles are fusion-bonded and firmly integrated by sintering.
- the complicatedly folded or entangled powder particles are It is sintered with a dense structure that does not leave large voids.
- the sintering temperature is significantly lower than that in the case of using a conventional spherical granular powder, and that a metal product 22 sintered at high temperature and high strength can be obtained.
- melt bonding is likely to occur because the powder particle shape is atypical flakes and the surface area ratio is high. In any case, this has made it possible to perform the sintering process required at a lower V sintering temperature than before, at a lower cost.
- granulation is performed in which the irregularly shaped flaky metal fine powder 10 is aggregated into a predetermined size, and this granulated body is formed into a predetermined shape with a molding die, and then the molding is performed.
- a granulation process may be included in the compacting process. In this case, in addition to the above effects, the homogeneity of the tissue structure can be greatly improved.
- FIG. 2 is a process schematic diagram schematically showing a method for manufacturing a metal product according to a second embodiment of the present invention.
- a spherical metal powder 11 obtained by an atomizing method or the like is used as a main material, and a jet mill that is smaller in particle size than the metal powder 11 and is crushed by a high-speed gas swirl flow is used.
- a jet mill that is smaller in particle size than the metal powder 11 and is crushed by a high-speed gas swirl flow is used.
- the generated random atypical flaky metal fine powder 10 as a secondary material, forming and sintering the secondary material (10) with the secondary material (10) dispersed between the primary material (11) to produce a metal product of a predetermined shape .
- the main material made of spherical metal powder 11 is mixed and dispersed with a predetermined ratio of the auxiliary material made of amorphous flaky metal powder 10, and this mixed material is used as a mold.
- the green compact 21 having a predetermined shape is formed by the press molding (pressure molding) used.
- the green compact 21 that has been press-molded is a gap between the particles of the spherical metal powder 11 that is the main material.
- the metal product 22 in which the powder particles are fused and bonded and the shape is firmly fixed can be obtained.
- the metal product 22 has a three-dimensional network (or lattice-like) skeletal structure formed by the spherical metal powder 11 having a large particle shape. It has a structure in which a gap between the skeletal tissues is filled with atypical flaky metal fine powder 10.
- the mixing ratio of the main material 11 and the sub-material 10 is theoretically set so that the sub-material 10 occupies an amount corresponding to voids formed when the main material 11 alone is formed and sintered. That's fine. If there is too much contamination of the secondary material, the powder particles of the primary material will not be in contact with each other and will be dispersed and released in the secondary material. Therefore, the mixing ratio of secondary materials to main materials should not exceed 50%. If the amount of the secondary material is too small, the porosity between the powder particles of the main material will increase. Therefore, the secondary material must be mixed (or added) so that the voids in the tissue structure are significantly reduced.
- FIGS. 4A to 4K each illustrate the shape of the metal product 22 that can be provided by the present invention.
- the present invention in addition to the shape accuracy and mechanical strength characteristics, for example, magnetic parts It can also be effectively applied to metal products that require specific material properties.
- FIG. 1 is a process schematic diagram schematically showing a method for producing a metal product according to a first embodiment of the present invention.
- FIG. 2 is a process schematic diagram schematically showing a method for producing a metal product according to a second embodiment of the present invention.
- FIG. 3 is an enlarged model diagram showing the structure of the metal product obtained by the second embodiment of the present invention.
- FIG. 4 is a perspective view showing an example of the shape of a metal product that can be provided by the present invention.
- FIG. 5 is a process schematic diagram schematically showing a conventional metal product manufacturing process by powder metallurgy. Explanation of symbols
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/791,231 US8439998B2 (en) | 2004-12-06 | 2005-12-02 | Manufacturing method of metal product and metal product |
JP2006546643A JPWO2006062039A1 (ja) | 2004-12-06 | 2005-12-02 | 金属製品の製造方法および金属製品 |
EP05811608A EP1839779A4 (en) | 2004-12-06 | 2005-12-02 | PROCESS FOR PRODUCING METALLIC PRODUCT AND METALLIC PRODUCT |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-353287 | 2004-12-06 | ||
JP2004353287 | 2004-12-06 |
Publications (1)
Publication Number | Publication Date |
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WO2006062039A1 true WO2006062039A1 (ja) | 2006-06-15 |
Family
ID=36577868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022179 WO2006062039A1 (ja) | 2004-12-06 | 2005-12-02 | 金属製品の製造方法および金属製品 |
Country Status (4)
Country | Link |
---|---|
US (1) | US8439998B2 (ja) |
EP (1) | EP1839779A4 (ja) |
JP (2) | JPWO2006062039A1 (ja) |
WO (1) | WO2006062039A1 (ja) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012012143A2 (en) * | 2010-07-21 | 2012-01-26 | Dresser-Rand Company | Multiple modular in-line rotary separator bundle |
CA3009630C (en) | 2015-12-16 | 2023-08-01 | Amastan Technologies Llc | Spheroidal dehydrogenated metals and metal alloy particles |
US10987735B2 (en) | 2015-12-16 | 2021-04-27 | 6K Inc. | Spheroidal titanium metallic powders with custom microstructures |
US11400655B2 (en) | 2018-04-30 | 2022-08-02 | Hewlett-Packard Development Company, L.P. | Fabrication of objects having different degree of solidification areas |
CN112654444A (zh) | 2018-06-19 | 2021-04-13 | 6K有限公司 | 由原材料制造球化粉末的方法 |
CN114007782A (zh) | 2019-04-30 | 2022-02-01 | 6K有限公司 | 机械合金化的粉末原料 |
WO2020223374A1 (en) | 2019-04-30 | 2020-11-05 | 6K Inc. | Lithium lanthanum zirconium oxide (llzo) powder |
CN110534283A (zh) * | 2019-09-18 | 2019-12-03 | 佛山市中研非晶科技股份有限公司 | 复合非晶磁粉芯及其制备方法 |
CN114641462A (zh) | 2019-11-18 | 2022-06-17 | 6K有限公司 | 用于球形粉末的独特原料及制造方法 |
US11590568B2 (en) | 2019-12-19 | 2023-02-28 | 6K Inc. | Process for producing spheroidized powder from feedstock materials |
EP4173060A1 (en) | 2020-06-25 | 2023-05-03 | 6K Inc. | Microcomposite alloy structure |
CN116547068A (zh) | 2020-09-24 | 2023-08-04 | 6K有限公司 | 用于启动等离子体的系统、装置及方法 |
US11919071B2 (en) | 2020-10-30 | 2024-03-05 | 6K Inc. | Systems and methods for synthesis of spheroidized metal powders |
US12042861B2 (en) | 2021-03-31 | 2024-07-23 | 6K Inc. | Systems and methods for additive manufacturing of metal nitride ceramics |
US12040162B2 (en) | 2022-06-09 | 2024-07-16 | 6K Inc. | Plasma apparatus and methods for processing feed material utilizing an upstream swirl module and composite gas flows |
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JP2003166001A (ja) * | 2001-11-28 | 2003-06-13 | Sumitomo Special Metals Co Ltd | 希土類合金の造粒粉の製造方法および希土類合金焼結体の製造方法 |
JP2004277877A (ja) * | 2003-02-25 | 2004-10-07 | Matsushita Electric Works Ltd | 金属光造形用金属粉末とその製造方法及び金属光造形による三次元形状造形物の製造方法並びに金属光造形物 |
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JPS6283401A (ja) * | 1985-10-07 | 1987-04-16 | Riken Corp | 電磁クラツチおよびブレ−キ用磁性粉末とその製造方法 |
JPH07107161B2 (ja) * | 1987-03-05 | 1995-11-15 | 大同特殊鋼株式会社 | ガス噴霧粉末を用いた焼結体の製造法 |
JP2816362B2 (ja) * | 1987-07-31 | 1998-10-27 | ティーディーケイ株式会社 | 磁気シールド用粉末、磁気シールド材及び粉末製造法 |
JPH02263901A (ja) * | 1989-04-04 | 1990-10-26 | Daido Steel Co Ltd | 金属射出成形用粉末およびその製造法 |
JPH05279701A (ja) * | 1992-02-06 | 1993-10-26 | Ngk Insulators Ltd | 金属粉末及びその製造方法並びに該金属粉末を用いた金属成形体及び金属ハニカムモノリスの製造方法 |
JPH0770601A (ja) * | 1993-09-06 | 1995-03-14 | Mitsubishi Steel Mfg Co Ltd | 球状化金属粉末およびその製造方法 |
US5724758A (en) | 1995-04-27 | 1998-03-10 | Eastman Kodak Company | Device and method for producing lenticular images with motion |
IT1290219B1 (it) * | 1997-01-30 | 1998-10-22 | Getters Spa | Dispositivo getter evaporabile con ridotto tempo di attivazione |
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DE10331785B4 (de) * | 2003-07-11 | 2007-08-23 | H. C. Starck Gmbh & Co. Kg | Verfahren zur Herstellung feiner Metall-, Legierungs-und Verbundpulver |
JP3818295B2 (ja) | 2004-02-27 | 2006-09-06 | オムロンヘルスケア株式会社 | 血圧計測装置 |
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2005
- 2005-12-02 JP JP2006546643A patent/JPWO2006062039A1/ja active Pending
- 2005-12-02 EP EP05811608A patent/EP1839779A4/en not_active Withdrawn
- 2005-12-02 US US11/791,231 patent/US8439998B2/en not_active Expired - Fee Related
- 2005-12-02 WO PCT/JP2005/022179 patent/WO2006062039A1/ja active Application Filing
-
2012
- 2012-11-30 JP JP2012262469A patent/JP2013060667A/ja active Pending
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JP2003166001A (ja) * | 2001-11-28 | 2003-06-13 | Sumitomo Special Metals Co Ltd | 希土類合金の造粒粉の製造方法および希土類合金焼結体の製造方法 |
JP2004277877A (ja) * | 2003-02-25 | 2004-10-07 | Matsushita Electric Works Ltd | 金属光造形用金属粉末とその製造方法及び金属光造形による三次元形状造形物の製造方法並びに金属光造形物 |
Non-Patent Citations (1)
Title |
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See also references of EP1839779A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1839779A4 (en) | 2009-12-30 |
JPWO2006062039A1 (ja) | 2008-06-05 |
US20080241568A1 (en) | 2008-10-02 |
EP1839779A1 (en) | 2007-10-03 |
JP2013060667A (ja) | 2013-04-04 |
US8439998B2 (en) | 2013-05-14 |
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