JPWO2016114142A1 - 還元鉄粉およびその製造方法並びに軸受 - Google Patents
還元鉄粉およびその製造方法並びに軸受 Download PDFInfo
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- JPWO2016114142A1 JPWO2016114142A1 JP2016521370A JP2016521370A JPWO2016114142A1 JP WO2016114142 A1 JPWO2016114142 A1 JP WO2016114142A1 JP 2016521370 A JP2016521370 A JP 2016521370A JP 2016521370 A JP2016521370 A JP 2016521370A JP WO2016114142 A1 JPWO2016114142 A1 JP WO2016114142A1
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- Japan
- Prior art keywords
- powder
- iron powder
- reduced iron
- bearing
- iron
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
-
- 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
-
- 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
- B22F1/05—Metallic powder characterised by the size or surface area of the 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
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/09—Mixtures of metallic powders
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- 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
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
- B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
-
- 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
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
-
- 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
- B22F2304/00—Physical aspects of the powder
- B22F2304/10—Micron size particles, i.e. above 1 micrometer up to 500 micrometer
-
- 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
- C22C33/0235—Starting from compounds, e.g. oxides
Abstract
Description
1.見掛密度が1.00〜1.40Mg/m3であることを特徴とする還元鉄粉。
レーザー回折法による測定による平均粒子径が3.0μm以下である原料酸化鉄粉を塊成化して酸化鉄粉とする工程と、
その後、前記酸化鉄粉を800〜1000℃で水素を用いて還元して還元鉄粉とする工程と、
を有することを特徴とする還元鉄粉の製造方法。
原料酸化鉄粉の平均粒子径は、体積基準のレーザー回折法で測定した。
酸化鉄粉中の鉄分は、JIS-M-8212に則り測定した値を用いた。
塊成化後の酸化鉄粉の平均粒子径は、レーザー回折法で測定し、50%粒子径を用いた。
還元鉄粉の平均粒子径は、体積基準のレーザー回折法で測定し、50%粒子径を用いた。
還元鉄粉のBET法による比表面積は、窒素ガスを用いて測定した。
還元鉄粉中の酸素量は、不活性ガス燃焼−赤外線吸収法(the inert gas fusion infrared absorption method;GFA)により測定した。
気孔率の測定は水銀圧入法により行った。
Claims (7)
- 見掛密度が1.00〜1.40Mg/m3であることを特徴とする還元鉄粉。
- 前記還元鉄粉中の酸素量が0.38mass%以下であることを特徴とする請求項1に記載の還元鉄粉。
- 前記還元鉄粉の比表面積が0.20m2/g以上であることを特徴とする請求項1または2に記載の還元鉄粉。
- 請求項1〜3のいずれか1項に記載の還元鉄粉を製造する方法であって、
レーザー回折法による測定による平均粒子径が3.0μm以下である原料酸化鉄粉を塊成化して酸化鉄粉とする工程と、
その後、前記酸化鉄粉を800〜1000℃で水素を用いて還元して還元鉄粉とする工程と、
を有することを特徴とする還元鉄粉の製造方法。 - 前記酸化鉄粉の還元前に、前記酸化鉄粉を分級して、前記酸化鉄粉のレーザー回折法による測定による平均粒子径を50〜200μmとすることを特徴とする請求項4に記載の還元鉄粉の製造方法。
- 前記酸化鉄粉中の鉄分を68.8mass%以上とすることを特徴とする請求項4または5に記載の還元鉄粉の製造方法。
- 請求項1〜3のいずれか1項に記載の還元鉄粉を原料とする軸受。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015005264 | 2015-01-14 | ||
JP2015005264 | 2015-01-14 | ||
PCT/JP2016/000170 WO2016114142A1 (ja) | 2015-01-14 | 2016-01-14 | 還元鉄粉およびその製造方法並びに軸受 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2016114142A1 true JPWO2016114142A1 (ja) | 2017-04-27 |
JP6197953B2 JP6197953B2 (ja) | 2017-09-20 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2016521370A Active JP6197953B2 (ja) | 2015-01-14 | 2016-01-14 | 還元鉄粉の製造方法および軸受の製造方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20180221960A1 (ja) |
JP (1) | JP6197953B2 (ja) |
KR (1) | KR102022947B1 (ja) |
CN (1) | CN107107186B (ja) |
CA (1) | CA2972864C (ja) |
SE (1) | SE542056C2 (ja) |
WO (1) | WO2016114142A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102097956B1 (ko) * | 2015-09-18 | 2020-04-07 | 제이에프이 스틸 가부시키가이샤 | 분말 야금용 혼합분, 소결체 및 소결체의 제조 방법 |
KR101878604B1 (ko) * | 2017-06-20 | 2018-07-13 | 현대자동차주식회사 | 레이저 초음파 측정을 이용한 환원 케이크 분쇄 방법 |
EP3978165A4 (en) | 2019-05-24 | 2022-11-09 | JFE Steel Corporation | IRON-BASED ALLOY SINTERED BODY AND MIXED IRON-BASED POWDER FOR POWDER METALLURGY |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938867A (ja) * | 1972-08-17 | 1974-04-11 | ||
JPS5247503A (en) * | 1975-10-15 | 1977-04-15 | Dowa Mining Co Ltd | Production process of iron-base sintered bearing having large oil-cont aining porosity ratio |
JPH07310101A (ja) * | 1994-05-12 | 1995-11-28 | Powder Tec Kk | 焼結含油軸受用還元鉄粉およびその製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5347783B2 (ja) * | 1973-04-14 | 1978-12-23 | ||
JPS52131960A (en) * | 1976-04-28 | 1977-11-05 | Dowa Mining Co | Feepbmaterial powder for presssformed powder piece and method of making the material powder |
JP2001132755A (ja) | 1999-11-04 | 2001-05-18 | Asmo Co Ltd | 多孔質軸受および含油軸受 |
US6589667B1 (en) * | 2000-09-26 | 2003-07-08 | Höganäs Ab | Spherical porous iron powder and method for producing the same |
US6464751B2 (en) * | 2000-10-06 | 2002-10-15 | Kawasaki Steel Corporation | Iron-based powders for powder metallurgy |
US6918945B2 (en) * | 2001-02-14 | 2005-07-19 | Jfe Steel Corporation | Method for producing sponge iron, and reduced iron powder and method for production thereof |
JP4667835B2 (ja) | 2004-11-25 | 2011-04-13 | Jfeケミカル株式会社 | 水素発生媒体およびその製造方法 |
JP4667937B2 (ja) | 2005-04-08 | 2011-04-13 | ウチヤ・サーモスタット株式会社 | 水素発生媒体およびその製造方法 |
-
2016
- 2016-01-14 SE SE1750827A patent/SE542056C2/en unknown
- 2016-01-14 WO PCT/JP2016/000170 patent/WO2016114142A1/ja active Application Filing
- 2016-01-14 CA CA2972864A patent/CA2972864C/en active Active
- 2016-01-14 JP JP2016521370A patent/JP6197953B2/ja active Active
- 2016-01-14 KR KR1020177021779A patent/KR102022947B1/ko active IP Right Grant
- 2016-01-14 US US15/542,459 patent/US20180221960A1/en not_active Abandoned
- 2016-01-14 CN CN201680005894.0A patent/CN107107186B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4938867A (ja) * | 1972-08-17 | 1974-04-11 | ||
JPS5247503A (en) * | 1975-10-15 | 1977-04-15 | Dowa Mining Co Ltd | Production process of iron-base sintered bearing having large oil-cont aining porosity ratio |
JPH07310101A (ja) * | 1994-05-12 | 1995-11-28 | Powder Tec Kk | 焼結含油軸受用還元鉄粉およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2016114142A1 (ja) | 2016-07-21 |
CA2972864C (en) | 2020-08-11 |
CN107107186B (zh) | 2019-05-31 |
SE542056C2 (en) | 2020-02-18 |
CN107107186A (zh) | 2017-08-29 |
KR102022947B1 (ko) | 2019-11-04 |
SE1750827A1 (en) | 2017-06-27 |
JP6197953B2 (ja) | 2017-09-20 |
KR20170102942A (ko) | 2017-09-12 |
US20180221960A1 (en) | 2018-08-09 |
CA2972864A1 (en) | 2016-07-21 |
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