FR2370104A1 - METHOD OF MANUFACTURING AN IRON-BASED POWDER CONTAINING COPPER INTENDED FOR POWDER METALLURGY - Google Patents
METHOD OF MANUFACTURING AN IRON-BASED POWDER CONTAINING COPPER INTENDED FOR POWDER METALLURGYInfo
- Publication number
- FR2370104A1 FR2370104A1 FR7732952A FR7732952A FR2370104A1 FR 2370104 A1 FR2370104 A1 FR 2370104A1 FR 7732952 A FR7732952 A FR 7732952A FR 7732952 A FR7732952 A FR 7732952A FR 2370104 A1 FR2370104 A1 FR 2370104A1
- Authority
- FR
- France
- Prior art keywords
- powder
- iron
- mixture
- copper
- particle size
- 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.)
- Granted
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
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Procédé de fabrication d'une poudre à base de fer consistant à préparer un mélange d'une poudre de fer ayant une granulométrie maximum < 350 mu m et de 1 à 20 % d'une poudre de cuivre ou de composés de cuivre réductibles ayant une granulométrie maximum < 175 mu m, à soumettre le mélange à un traitement thermique en atmosphère réductrice à une température de 700-950 pendant une durée allant de 15 mn à 10 h, de préférence 0,5-5 h, à broyer le mélange comprimé ainsi obtenu en une poudre ayant une granulométrie maximum < 350 mu m, le traitement thermique étant exécuté de telle façon que la compressibilité de la poudre traitée thermiquement, selon la norme ASTM B 331-64, soit inférieure au maximum de 0,15 g/cm**3 à la compressibilité du mélange correspondant de poudres de fer et de cuivre et que la teneur totate en oxygène n'excède pas 1,2 %, et à mélanger la poudre de fer ainsi obtenue avec de la poudre de fer pur en une quantité telle que le mélange ait la teneur en cuivre désirés, avec 0 à 2 % de graphite, 0 à 2 % de lubrifiant solide sous forme de poudre et, si on le désire, 0 à 5 % de Ni,0 à 2 % de Mo et 0 à 1,5 % de P séparément ou en combinaison. La poudre de fer de l'invention est utilisée pour la fabrication de pièces de précision par métallurgie des poudres.A method of manufacturing an iron-based powder comprising preparing a mixture of an iron powder having a maximum particle size <350 mu m and 1 to 20% of a powder of copper or reducible copper compounds having a maximum particle size <175 mu m, in subjecting the mixture to heat treatment in a reducing atmosphere at a temperature of 700-950 for a period ranging from 15 min to 10 h, preferably 0.5-5 h, in grinding the compressed mixture thus obtained in a powder having a maximum particle size <350 mu m, the heat treatment being carried out in such a way that the compressibility of the heat-treated powder, according to standard ASTM B 331-64, is less than the maximum of 0.15 g / cm ** 3 to the compressibility of the corresponding mixture of iron and copper powders and that the total oxygen content does not exceed 1.2%, and to mix the iron powder thus obtained with pure iron powder in an amount such that the mixture has the desired copper content, with 0 to 2% graphite, 0 to 2% solid lubricant in powder form and, if desired, 0 to 5% Ni, 0 to 2% Mo and 0 to 1.5% P separately or in combination . The iron powder of the invention is used for the manufacture of precision parts by powder metallurgy.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7612217A SE408435B (en) | 1976-11-03 | 1976-11-03 | WAY TO PRODUCE A COPPER-CONTAINING IRON POWDER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2370104A1 true FR2370104A1 (en) | 1978-06-02 |
| FR2370104B1 FR2370104B1 (en) | 1984-02-10 |
Family
ID=20329323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7732952A Granted FR2370104A1 (en) | 1976-11-03 | 1977-11-02 | METHOD OF MANUFACTURING AN IRON-BASED POWDER CONTAINING COPPER INTENDED FOR POWDER METALLURGY |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5392306A (en) |
| DE (1) | DE2749215C2 (en) |
| ES (1) | ES463769A1 (en) |
| FR (1) | FR2370104A1 (en) |
| GB (1) | GB1595346A (en) |
| IT (1) | IT1090423B (en) |
| SE (1) | SE408435B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468467A2 (en) * | 1990-07-24 | 1992-01-29 | Citizen Watch Co., Ltd. | Process for producing precision metal parts by powder moulding |
| CN112008072A (en) * | 2019-07-13 | 2020-12-01 | 安徽中弘鑫源机械制造股份有限公司 | Intercooler air inlet pipe material and preparation method thereof |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6075501A (en) * | 1983-09-29 | 1985-04-27 | Kawasaki Steel Corp | Alloy steel powder for high strength sintered parts |
| JPH0649881B2 (en) * | 1986-02-19 | 1994-06-29 | 住友電気工業株式会社 | Method for producing copper-oxide dispersion strengthening material |
| JPS6389601A (en) * | 1986-10-01 | 1988-04-20 | Kawasaki Steel Corp | Alloy steel powder for powder metallurgy |
| WO1990011855A1 (en) * | 1989-04-07 | 1990-10-18 | Aktiebolaget Electrolux | Manufacture of dimensionally precise pieces by sintering |
| US5069714A (en) * | 1990-01-17 | 1991-12-03 | Quebec Metal Powders Limited | Segregation-free metallurgical powder blends using polyvinyl pyrrolidone binder |
| US5403376A (en) * | 1992-03-18 | 1995-04-04 | Printron, Inc. | Particle size distribution for controlling flow of metal powders melted to form electrical conductors |
| SE9401623D0 (en) * | 1994-05-09 | 1994-05-09 | Hoeganaes Ab | Sintered products having improved density |
| ES2656345T3 (en) | 2006-12-29 | 2018-02-26 | Höganäs Ab (Publ) | Iron-based powder, component made of it, and methods of manufacturing them |
| JP6141181B2 (en) * | 2010-05-19 | 2017-06-07 | ヘガナーズ・コーポレーション | Compositions and methods for improved dimensional control in iron powder metallurgy applications |
| JP5442145B1 (en) * | 2012-10-24 | 2014-03-12 | Ｎｔｎ株式会社 | Sintered bearing |
| CA3017996C (en) | 2016-03-23 | 2023-11-21 | Hoganas Ab (Publ) | Iron based powder |
| CN111451519B (en) * | 2020-04-03 | 2022-10-14 | 龙门金南磁性材料有限公司 | Preparation method of brass-coated iron powder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2077565A1 (en) * | 1969-12-20 | 1971-10-29 | Krebsoege Gmbh Sintermetall | |
| US3752712A (en) * | 1971-06-07 | 1973-08-14 | Domtar Ltd | Iron copper prealloys |
| FR2253101A1 (en) * | 1973-11-29 | 1975-06-27 | Hoeganaes Ab |
-
1976
- 1976-11-03 SE SE7612217A patent/SE408435B/en not_active IP Right Cessation
-
1977
- 1977-11-02 FR FR7732952A patent/FR2370104A1/en active Granted
- 1977-11-02 ES ES463769A patent/ES463769A1/en not_active Expired
- 1977-11-02 GB GB4562877A patent/GB1595346A/en not_active Expired
- 1977-11-02 IT IT5165877A patent/IT1090423B/en active
- 1977-11-03 DE DE19772749215 patent/DE2749215C2/en not_active Expired
- 1977-11-04 JP JP13162877A patent/JPS5392306A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2077565A1 (en) * | 1969-12-20 | 1971-10-29 | Krebsoege Gmbh Sintermetall | |
| US3752712A (en) * | 1971-06-07 | 1973-08-14 | Domtar Ltd | Iron copper prealloys |
| FR2253101A1 (en) * | 1973-11-29 | 1975-06-27 | Hoeganaes Ab |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0468467A2 (en) * | 1990-07-24 | 1992-01-29 | Citizen Watch Co., Ltd. | Process for producing precision metal parts by powder moulding |
| EP0468467A3 (en) * | 1990-07-24 | 1992-04-01 | Citizen Watch Co. Ltd. | Process for producing precision metal parts by powder moulding |
| CN112008072A (en) * | 2019-07-13 | 2020-12-01 | 安徽中弘鑫源机械制造股份有限公司 | Intercooler air inlet pipe material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| SE408435B (en) | 1979-06-11 |
| IT1090423B (en) | 1985-06-26 |
| FR2370104B1 (en) | 1984-02-10 |
| DE2749215C2 (en) | 1983-11-03 |
| JPS5392306A (en) | 1978-08-14 |
| ES463769A1 (en) | 1978-06-01 |
| DE2749215A1 (en) | 1978-05-18 |
| GB1595346A (en) | 1981-08-12 |
| SE7612217L (en) | 1978-05-04 |
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