WO2017050572A1 - Teil aus einem sinterwerkstoff und verfahren zu seiner herstellung - Google Patents
Teil aus einem sinterwerkstoff und verfahren zu seiner herstellung Download PDFInfo
- Publication number
- WO2017050572A1 WO2017050572A1 PCT/EP2016/071042 EP2016071042W WO2017050572A1 WO 2017050572 A1 WO2017050572 A1 WO 2017050572A1 EP 2016071042 W EP2016071042 W EP 2016071042W WO 2017050572 A1 WO2017050572 A1 WO 2017050572A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- weight
- powder
- sintering
- sintered
- sintered powder
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/20—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of particles, e.g. powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
Definitions
- the present invention relates to a method of producing a part by means of sintering. Furthermore, it relates to a part which can be produced by means of the method.
- the part has in particular low magnetic reversal losses.
- Powder metallurgy parts made of pure iron materials and iron cobalt materials show increased static and dynamic magnetic losses in a large number of applications.
- actuators for example as anchor materials
- a sensor and in electrical machines for example as a stator and / or rotor
- low core losses and soft magnetic properties of the parts ie a coercive force H c of less than 20 A / cm are required.
- Such properties can be achieved by using low-carbon iron or cobalt powders as starting materials in a sintering process for producing the materials.
- a first sintering powder and a second sintering powder are used.
- the first sintered powder is an iron powder containing 49-99.97% by weight of iron, 0-7% by weight of silicon, 0-20% by weight of chromium, 0-50% by weight of cobalt and 0.03 - 2.00 wt .-% carbon, preferably 0.06 - 1.00 wt .-% carbon, particularly preferably 0.06 - 0.4 wt .-% carbon. It is therefore a cost-effective carbon-rich sintered powder.
- the first Sinter powder 0 - 5 wt .-% contain other elements.
- the further elements are in particular selected from the group consisting of manganese, molybdenum, tungsten, vanadium, sulfur and phosphorus, ie those elements which typically occur associated with iron.
- the sum of the constituents in the first sinter powder is 100% by weight.
- the second sintered powder contains 0-90% by weight of iron, 0-90% by weight of silicon, 0
- the second sintering powder is preferably eutectic
- the second sintered powder is homogeneously mixed with the first sintering powder.
- the number-average particle size of the first sintering powder is greater than the number-average particle size of the second sintering powder.
- the first sintering powder preferably has a number-average particle size in the range of 10 to 500 ⁇ m
- the second sintering powder has a number-average particle size in the range of preferably 1 to 400 ⁇ m, particularly preferably 1 to 200 ⁇ m.
- the part made of a sintered material can be produced by sintering the powder mixture.
- the elements of the second sintering powder diffuse into one another with those of the first sintering powder.
- the solubility of carbon in the material of the first or second sintered powder is reduced.
- the carbon dissolved in the sintering powder therefore migrates to its grain boundary or to carbides already formed in the sintered powder and precipitates, for example, as cementite, which occurs in the material, for example, partially as perlite.
- carbon or a carbonaceous powder may be used as the second sintering powder. In this way, the carbon can be additionally introduced via the second sintering powder is in a
- the first sintering powder and the second sintering powder are homogeneously distributed in the powder mixture before sintering, so that the elements of the sintering powders uniformly diffuse into one another to produce a total sintered powder throughout cause similar excretion of carbon.
- the decisive factor is that there is no random distribution of carbides, which are obstacles to
- the sintering is preferably carried out at a temperature above the
- Melting temperature of the second sintered powder or the resulting from the elements of the first and second sintered powder alloy (transient liquid phase sintering). In this way, preference is given to wetting the particles of the first sintering powder with molten second sintering powder, which causes the diffusion of the elements of the second sintering powder and of the first
- Sinter powder facilitates each other and increases the density of the resulting component.
- the part obtainable in this way consists of a sintered material which has a microstructure with an ordered carbide network due to the precipitated carbon.
- the carbide microstructure is in particular a cementite structure, which for example is partially present as a perlite structure.
- the part of the invention in particular a reduction of its core losses of at least 10% at least in the range 20 - 90% of the material saturation and a frequency of 100 - 1000 Hz. Furthermore, the part has in particular soft magnetic properties.
- Fig. 1 shows schematically the diffusion of two sintered powders into each other in one embodiment of the method according to the invention.
- Fig. 2 shows schematically particles of a sintered powder, which in a
- Fig. 3 shows schematically a section of a part according to a
- a powder mixture is first prepared by mixing 90 g of a first sintered powder 1 with 10 g of a second sintered powder 2.
- the first sintered powder 1 is an iron-based material containing 99% by weight of iron and 0.06% by weight.
- the second sintered powder 2 is a powder consisting of 80% by weight of iron and 20% by weight of silicon. It has a melting point of 1,172 ° C and an average particle size of 73 ⁇ .
- the powder mixture is added with a lubricant. It is then mixed homogeneously and pressed into a green body. Finally, a heat treatment in inert
- the first sintered powder 1 initially still contains a high proportion of carbon C, which is dissolved in the iron Fe.
- Embodiment of the invention attached to a lubricant. It is then mixed homogeneously and pressed into a green body. Finally, a heat treatment in an inert nitrogen atmosphere in an oven at a temperature of 1200 ° C. After one hour, the obtained part is cooled and obtained in this way a comparison part.
- the Ummagnetleiterswe the part according to the embodiment of the invention are compared to the comparison part in the range 20 - 90% of
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Powder Metallurgy (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680055669.8A CN108026615A (zh) | 2015-09-25 | 2016-09-07 | 由烧结材料制成的部件及其制造方法 |
JP2018515612A JP6611924B2 (ja) | 2015-09-25 | 2016-09-07 | 焼結素材からなる部品およびその製造方法 |
KR1020187008306A KR20180057626A (ko) | 2015-09-25 | 2016-09-07 | 소결된 재료로 이루어진 부품 및 그 제조 방법 |
SE1850434A SE1850434A1 (sv) | 2015-09-25 | 2016-09-07 | Del framställd av sintermaterial och metod för framställningdärav |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015218440.4A DE102015218440A1 (de) | 2015-09-25 | 2015-09-25 | Teil aus einem Sinterwerkstoff und Verfahren zu seiner Herstellung |
DE102015218440.4 | 2015-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017050572A1 true WO2017050572A1 (de) | 2017-03-30 |
Family
ID=57003479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/071042 WO2017050572A1 (de) | 2015-09-25 | 2016-09-07 | Teil aus einem sinterwerkstoff und verfahren zu seiner herstellung |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP6611924B2 (de) |
KR (1) | KR20180057626A (de) |
CN (1) | CN108026615A (de) |
DE (1) | DE102015218440A1 (de) |
SE (1) | SE1850434A1 (de) |
WO (1) | WO2017050572A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102660345B1 (ko) * | 2018-12-28 | 2024-04-23 | 현대자동차주식회사 | 분말야금용 금속분말 및 이의 제조방법 |
KR102226328B1 (ko) | 2020-05-19 | 2021-03-11 | (주)동화산업 | 투명 커버 개방형 그레이팅 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190441A (en) * | 1978-03-02 | 1980-02-26 | Hoganas Ab Fack | Powder intended for powder metallurgical manufacturing of soft magnetic components |
US4933008A (en) * | 1988-02-05 | 1990-06-12 | Nissan Motor Co., Ltd. | Heat resistant and wear resistant iron-based sintered alloy |
US20020139448A1 (en) * | 2001-01-31 | 2002-10-03 | Hitachi Powdered Metals Co., Ltd. | Turbo component for turbocharger |
EP2482291A1 (de) * | 2011-01-28 | 2012-08-01 | Sumida Corporation | Magnetisches Pulver, verlustarmer magnetischer Verbundwerkstoff davon und mit diesem Verbundwerkstoff hergestelltes magnetisches Bauteil |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04176802A (ja) * | 1990-11-13 | 1992-06-24 | Sumitomo Cement Co Ltd | 高密度焼結体の製造方法 |
JPH07157838A (ja) * | 1993-12-06 | 1995-06-20 | Daido Steel Co Ltd | 焼結磁性合金の製造方法及び焼結磁性合金用粉末 |
JP3412719B2 (ja) * | 1994-11-01 | 2003-06-03 | 三菱製鋼株式会社 | 磁気センサーローター製造用粉末および磁気センサーローターの製造方法 |
BE1009811A3 (fr) | 1995-12-08 | 1997-08-05 | Union Miniere Sa | Poudre prealliee et son utilisation dans la fabrication d'outils diamantes. |
JPH10147832A (ja) * | 1996-11-18 | 1998-06-02 | Sumitomo Metal Mining Co Ltd | パーマロイ焼結体の製造方法 |
DE10361841A1 (de) | 2003-01-04 | 2004-07-22 | Daume Regelarmaturen Gmbh | Ventilanordnung zur Verminderung von Verschleiß |
JP5484899B2 (ja) | 2008-03-31 | 2014-05-07 | 日本ピストンリング株式会社 | バルブシート用鉄基焼結合金及び内燃機関用バルブシート |
JP5525986B2 (ja) | 2009-12-21 | 2014-06-18 | 日立粉末冶金株式会社 | 焼結バルブガイドおよびその製造方法 |
AT509868B1 (de) | 2010-06-10 | 2011-12-15 | Miba Sinter Austria Gmbh | Bauelement mit reduzierter metallhaftung |
-
2015
- 2015-09-25 DE DE102015218440.4A patent/DE102015218440A1/de not_active Withdrawn
-
2016
- 2016-09-07 KR KR1020187008306A patent/KR20180057626A/ko active Search and Examination
- 2016-09-07 CN CN201680055669.8A patent/CN108026615A/zh active Pending
- 2016-09-07 WO PCT/EP2016/071042 patent/WO2017050572A1/de active Application Filing
- 2016-09-07 SE SE1850434A patent/SE1850434A1/sv not_active Application Discontinuation
- 2016-09-07 JP JP2018515612A patent/JP6611924B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4190441A (en) * | 1978-03-02 | 1980-02-26 | Hoganas Ab Fack | Powder intended for powder metallurgical manufacturing of soft magnetic components |
US4933008A (en) * | 1988-02-05 | 1990-06-12 | Nissan Motor Co., Ltd. | Heat resistant and wear resistant iron-based sintered alloy |
US20020139448A1 (en) * | 2001-01-31 | 2002-10-03 | Hitachi Powdered Metals Co., Ltd. | Turbo component for turbocharger |
EP2482291A1 (de) * | 2011-01-28 | 2012-08-01 | Sumida Corporation | Magnetisches Pulver, verlustarmer magnetischer Verbundwerkstoff davon und mit diesem Verbundwerkstoff hergestelltes magnetisches Bauteil |
Also Published As
Publication number | Publication date |
---|---|
KR20180057626A (ko) | 2018-05-30 |
DE102015218440A1 (de) | 2017-03-30 |
SE1850434A1 (sv) | 2018-06-13 |
JP2018535312A (ja) | 2018-11-29 |
CN108026615A (zh) | 2018-05-11 |
JP6611924B2 (ja) | 2019-11-27 |
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