CN1347801A - 粉末充填装置、采用该粉末充填装置的加压成型装置、粉末充填方法及烧结磁铁制造方法 - Google Patents
粉末充填装置、采用该粉末充填装置的加压成型装置、粉末充填方法及烧结磁铁制造方法 Download PDFInfo
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/004—Filling molds with powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/029—Feeding the unshaped material to moulds or apparatus for producing shaped articles through a sieve or grid, e.g. to ensure evenly filling of cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
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- H—ELECTRICITY
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
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- 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
- H01F41/0253—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 for manufacturing permanent magnets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- H—ELECTRICITY
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- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
方式 | 给粉时间 | 单重离差(R/AVE) | 厚度离差(R/AVE) | |
实施例1 | 撞击式粉末充填装置 | 12秒 | 2.67% | 1.54% |
实施例2 | 撞击式粉末充填装置+分隔板 | 10秒 | 2.35% | 1.12% |
比较例1 | 摇动式粉末充填装置 | 15秒 | 5.40% | 2.74% |
成型体 | 成型尺寸:80mm×52.2mm×20mm加压个数:1个/一次加压原料: Nd-Fe-B系合金粉末用带材铸造法制造(平均粒径2μm~5μm)添加己酸甲酯(润滑剂)成型密度:4.1g/cm3充填密度:(加压成型装置10):1.8g/cm3充填密度:(现有技术装置):2.3g/cm3 |
供料箱 | 摇动:相对于模具面在水平方向10次往复(与现有装置相同)杆状部件的大小:直径3mm杆状部件的材质:不锈钢线状部件的大小:直径0.15mm线状部件的材质:铜合金线状部件相互的间隔:2mm杆状部件与线状部件的间隔:2mm~4mm |
加压 | 加压方式:磁场加压朝着垂直于加压方向的方向,一边施加磁场一边加压模孔尺寸:80mm×52.2mm充填深度:50mm |
测定 | 成型后、经过烧结·时效处理·切断加工后测定。仅对切断得到的烧结磁铁中的中央的烧结磁铁进行测定,测定部位是烧结磁铁的主面。 |
Claims (25)
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CNB2004101029037A Expired - Lifetime CN1270854C (zh) | 2000-09-12 | 2001-09-12 | 粉末充填装置及方法、加压成型装置及烧结磁铁制造方法 |
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- 2001-09-06 US US09/946,962 patent/US6656416B2/en not_active Expired - Lifetime
- 2001-09-12 CN CNB011314958A patent/CN1226113C/zh not_active Expired - Lifetime
- 2001-09-12 CN CNB2004101029037A patent/CN1270854C/zh not_active Expired - Lifetime
- 2001-09-12 DE DE10144937A patent/DE10144937B4/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
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US20020051726A1 (en) | 2002-05-02 |
CN1270854C (zh) | 2006-08-23 |
US6656416B2 (en) | 2003-12-02 |
DE10144937B4 (de) | 2007-03-15 |
CN1618551A (zh) | 2005-05-25 |
CN1226113C (zh) | 2005-11-09 |
DE10144937A1 (de) | 2002-03-21 |
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