公开(公告)号：US3699196A

公开(公告)日：1972-10-17

申请号：US3699196D

申请日：1970-01-19

Applicant: REYNOLDS METALS CO

Inventor： JOYCE JOHN FREDERICK ,  DAUGHERTY T STEVENS

IPC: B22F9/10 ,  B22F9/00

CPC classification number: B22F9/10 ,  B22F2999/00 ,  Y10S264/19 ,  B22F2201/05 ,  B22F2201/00

Abstract: In a process of cooling and solidifying molten metal particles, gas substantially free from nascent and molecular oxygen (argon, helium, nitrogen, carbon dioxide and carbon monoxide) is bubbled through a liquid, thereby creating at the surface of the liquid a layer of foam of bubbles containing some of the gas. Additional gas is retained in the space adjacent the foam. Molten metal particles are formed by being centrifugally projected through holes extending through a side wall of a rotating pot disposed within the space. The molten particles are decelerated and cooled by passing into said foam, and rupture some of the bubbles, so that the gas contained within them flows into the space. The particles then leave the foam and pass into the liquid, becoming further cooled, and are thereafter recovered solidified, substantially unoxidized, and with a minimum of distortion, thereby being suitable for forming into strip. New gas-containing bubbles are created by bubbling additional gas through the liquid, so as to maintain the layer of foam.

Abstract translation: 在冷却和固化熔融金属颗粒的过程中，基本上没有新生和分子氧（氩，氦，氮，二氧化碳和一氧化碳）的气体被鼓泡通过液体，从而在液体表面产生一层泡沫 的气体含有一些气体。 附加气体保留在泡沫附近的空间中。 熔融金属颗粒通过离心地突出通过延伸穿过设置在该空间内的旋转锅的侧壁的孔而形成。 熔融颗粒通过进入所述泡沫体而减速并冷却，并且使一些气泡破裂，使得其中所含的气体流入空间。 然后颗粒离开泡沫并进入液体，进一步冷却，然后回收固化，基本上未氧化，并且具有最小的变形，从而适于形成条带。 通过将另外的气体鼓泡通过液体来产生新的含气泡，从而保持泡沫层。

公开(公告)号：US11948730B2

公开(公告)日：2024-04-02

申请号：US17082372

申请日：2020-10-28

Applicant: SEIKO EPSON CORPORATION

Inventor： Yasutaka Matsumoto

IPC: B22F1/02 ,  B22F1/102 ,  B22F1/16 ,  H01F1/24 ,  H01F3/08 ,  H01F27/255 ,  H01F41/02

CPC classification number: H01F3/08 ,  B22F1/102 ,  B22F1/16 ,  H01F1/24 ,  B22F2301/15 ,  B22F2301/35 ,  H01F27/255 ,  H01F41/0246 ,  B22F2999/00 ,  B22F1/102 ,  B22F2201/10 ,  B22F2201/03 ,  B22F2201/05 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2201/12 ,  B22F2202/13

Abstract: An insulator-coated magnetic alloy powder particle includes a magnetic alloy powder particle and an insulator that coats a surface of the magnetic alloy powder particle and that has a plurality of protrusions at a surface thereof, wherein the insulator includes a first insulator in a particulate form enclosed in the protrusion, and a second insulator in a film form that coats at least a part of a surface of the first insulator.

公开(公告)号：US20170343044A1

公开(公告)日：2017-11-30

申请号：US15533716

申请日：2015-11-20

Applicant: NTN CORPORATION

Inventor： Naoki YASHIRO ,  Kouya OOHIRA

IPC: F16C33/14 ,  B22F3/02 ,  F16C33/10 ,  B22F3/24 ,  F16C33/12

CPC classification number: F16C33/145 ,  B22F1/0007 ,  B22F1/02 ,  B22F3/02 ,  B22F3/11 ,  B22F3/225 ,  B22F3/24 ,  B22F3/26 ,  B22F5/10 ,  B22F2003/242 ,  B22F2009/0828 ,  B22F2301/35 ,  B22F2998/10 ,  F16C33/1025 ,  F16C33/128 ,  F16C2220/20 ,  B22F3/1021 ,  B22F2201/05

Abstract: A green compact according to the present invention is a green compact, which is obtained by compaction-molding raw material powder containing metal powder as a main raw material, the green compact including an oxide film formed between particles of the raw material powder forming the green compact, the oxide film binding the particles of the raw material powder to each other, in which the metal powder to toe used includes metal powder showing a circularity R at a cumulative frequency of 80% of 0.75 or more, the circularity R being expressed by Equation (1), where S represents a two-dimensional projected area of the metal powder and L represents a two-dimensional projected circumferential length of the metal powder. R = 4  π × S L 2 ( 1 )

公开(公告)号：US09759304B2

公开(公告)日：2017-09-12

申请号：US14607304

申请日：2015-01-28

Applicant: Alan G. Turek ,  Jeffrey E. Beyerlein ,  Niklaus A. Von Matt

Inventor： Alan G. Turek ,  Jeffrey E. Beyerlein ,  Niklaus A. Von Matt

IPC: B22F3/24 ,  F16H55/06 ,  F16H55/17 ,  B62D5/04 ,  B22F3/02 ,  B22F3/10 ,  B22F3/26 ,  B22F5/08 ,  B29C65/46 ,  B29C65/00 ,  F16H55/22 ,  F16H57/04

CPC classification number: F16H55/06 ,  B22F3/02 ,  B22F3/10 ,  B22F3/24 ,  B22F3/26 ,  B22F5/08 ,  B22F2998/10 ,  B22F2999/00 ,  B29C65/46 ,  B29C66/026 ,  B29C66/0344 ,  B29C66/1122 ,  B29C66/5324 ,  B29C66/73161 ,  B29C66/7392 ,  B29C66/742 ,  B29D15/00 ,  B29L2015/006 ,  B62D5/0403 ,  F16H55/17 ,  F16H55/22 ,  F16H57/04 ,  F16H57/041 ,  F16H2055/065 ,  B22F2003/242 ,  B22F2207/20 ,  B22F2201/05 ,  B22F2201/03

Abstract: A method of making a worm gear is provided. The method comprises forming a gear hub from a powdered metal material. Thereafter an outer surface of the gear hub is sealed.

公开(公告)号：US09449752B2

公开(公告)日：2016-09-20

申请号：US14522162

申请日：2014-10-23

Applicant: Hitachi Metals, Ltd.

Inventor： Masami Taguchi ,  Shigeho Tanigawa ,  Shin Noguchi

IPC: H01F27/02 ,  H01F27/255 ,  B22F1/02 ,  H01F41/02 ,  H01F1/153 ,  B22F5/10

CPC classification number: H01F27/255 ,  B22F1/02 ,  B22F5/106 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2200/02 ,  C22C2202/02 ,  H01F1/15308 ,  H01F27/02 ,  H01F41/0246 ,  B22F1/0059 ,  B22F3/02 ,  B22F2003/248 ,  B22F2202/05 ,  B22F2201/05

Abstract: It is an objective of the invention to provide a dust core made of an Fe-based amorphous metal powder having excellent magnetic properties, in which the dust core has a higher-than-conventional density, excellent magnetic properties and a high mechanical strength. There is provided a dust core including a mixture powder compacted, the mixture powder including: an Fe-based amorphous metal powder having a crystallization temperature Tx (unit: K), the Fe-based amorphous metal powder being plastically deformed, the plastically deformed metal Fe-based amorphous metal powder having a filling factor in the dust core higher than 80% and not higher than 99%; and a resin binder having a melting point Tm (unit: K), in which the Tx and Tm satisfy a relationship of “Tm/Tx≧0.70”.

Abstract translation: 本发明的目的是提供一种由具有优异的磁性能的Fe基非晶态金属粉末制成的防尘芯，其中该防尘芯具有高于常规密度，优异的磁性能和高的机械强度。 本发明提供一种压粉粉体，其特征在于，包括：具有结晶化温度Tx（单位：K）的Fe系非晶态金属粉末，所述Fe系非晶金属粉末发生塑性变形，所述塑性变形金属 在粉尘芯中具有填充因子的Fe基非晶金属粉末高于80％且不高于99％; 和具有熔点Tm（单位：K）的树脂粘合剂，其中Tx和Tm满足“Tm /Tx≥0.70”的关系。

公开(公告)号：US20160054061A1

公开(公告)日：2016-02-25

申请号：US14783377

申请日：2014-03-25

Applicant: Josef KEUSCHNIGG

Inventor： JOSEF KEUSCHNIGG ,  JOSEF KEUSCHNIGG, JR.

IPC: F27B7/20 ,  F27B7/00 ,  F27B7/34

CPC classification number: H01M8/0232 ,  B22F1/0003 ,  B22F3/162 ,  B22F5/00 ,  B22F5/006 ,  B22F9/20 ,  B22F2003/247 ,  B22F2005/005 ,  B22F2201/013 ,  B22F2201/03 ,  B22F2201/04 ,  B22F2201/05 ,  B22F2301/20 ,  B22F2998/10 ,  B22F2999/00 ,  C04B7/434 ,  C22C1/045 ,  C22C1/08 ,  C22C1/1078 ,  C22C27/06 ,  C22C32/0026 ,  C23C8/12 ,  C23C8/16 ,  F23C3/008 ,  F27B7/00 ,  F27B7/20 ,  F27B7/2016 ,  F27B7/2033 ,  F27B7/34 ,  F27D99/0033 ,  H01M2/202 ,  H01M8/0243 ,  H01M8/12 ,  H01M2008/1293 ,  B22F3/1007 ,  B22F2201/20 ,  B22F9/04 ,  B22F3/02

Abstract: A combustion device includes a combustion chamber having an exhaust gas opening. The combustion chamber has a first region having a plurality of circular-segment-shaped cross-sections, which are parallel to each other and each have a circle centre point. A connection of the circle centre points lies substantially on an axis. A gas supply line is connected to the combustion chamber in such a way that a discharge point is formed, that the combustion chamber has a mixing region in the region of the discharge point for mixing gas supplied via the gas supply line with gas rotating in the combustion chamber, and that the discharge point is arranged on a bottom side of the combustion chamber in an operating position, wherein gas supplied via the gas supply line flows against the first region tangentially from below.

Abstract translation: 燃烧装置包括具有废气开口的燃烧室。 燃烧室具有第一区域，该第一区域具有多个圆形截面形状的横截面，它们彼此平行并且各自具有圆形中心点。 圆心点的连接基本上位于轴上。 气体供给管线以与排出点形成的方式与燃烧室连接，燃烧室在排出点的区域具有混合区域，用于混合通过气体供给管线供给的气体与在 燃烧室，并且排放点在操作位置设置在燃烧室的底侧，其中经由气体供应管供应的气体从下方切向地流过第一区域。

公开(公告)号：US08206485B2

公开(公告)日：2012-06-26

申请号：US12169916

申请日：2008-07-09

Applicant: Steven C. Larink, Jr.

Inventor： Steven C. Larink, Jr.

IPC: C22C27/04

CPC classification number: B22F9/026 ,  B22F1/0074 ,  B22F1/0077 ,  B22F2998/00 ,  B22F2201/05 ,  B22F2202/01 ,  B22F3/115

Abstract: A method for producing a metal powder product involves: Providing a supply of a precursor metal powder; combining the precursor metal powder with a liquid to form a slurry; feeding the slurry into a pulsating stream of hot gas; and recovering the metal powder product.

Abstract translation: 金属粉末制品的制造方法包括：提供前体金属粉末; 将前体金属粉末与液体组合以形成浆料; 将浆料送入脉动的热气流中; 并回收金属粉末产品。

公开(公告)号：US20100275731A1

公开(公告)日：2010-11-04

申请号：US12834431

申请日：2010-07-12

Applicant: Walter Curlook ,  Dmitri S. Terekhov ,  Sergiy Kovtun ,  Olujide Babatunde Olurin ,  Nanthakumar Victor Emmanuel

Inventor： Walter Curlook ,  Dmitri S. Terekhov ,  Sergiy Kovtun ,  Olujide Babatunde Olurin ,  Nanthakumar Victor Emmanuel

IPC: C22B5/12 ,  C22B23/00 ,  C22B15/00

CPC classification number: C22B23/065 ,  B22F9/22 ,  B22F9/305 ,  B22F2201/013 ,  B22F2201/04 ,  B22F2201/05 ,  B22F2998/10 ,  B22F2999/00 ,  C22B5/12 ,  C22B15/0026 ,  C22B23/021 ,  C22C19/03 ,  B22F2201/03

Abstract: An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the respective metals, the improvement wherein the atmosphere further comprises water vapour at a concentration, temperature and time to effect selective reduction of the oxides of nickel cobalt and copper relative to the iron oxide to produce the metallic mixture having a reduced ratio of metallic iron relative to metallic nickel, cobalt and copper.

Abstract translation: 一种在氢气氛中还原包含镍，钴，铜和铁的氧化物的混合金属氧化物组合物以产生各种金属的混合物的改进方法，其中气氛还包括浓度，温度和时间的水蒸气 相对于氧化铁有效地选择性还原镍钴和铜的氧化物，以产生金属铁相对于金属镍，钴和铜的比例降低的金属混合物。

公开(公告)号：US20100035087A1

公开(公告)日：2010-02-11

申请号：US12535978

申请日：2009-08-05

Applicant: Hiroko Morii ,  Keisuke Iwasaki ,  Seiji Ishitani ,  Mineko Ohsugi ,  Shinji Horie ,  Toshiharu Harada ,  Takehiro Matsuo ,  Yosuke Yamamoto ,  Kazuyuki Hayashi

Inventor： Hiroko Morii ,  Keisuke Iwasaki ,  Seiji Ishitani ,  Mineko Ohsugi ,  Shinji Horie ,  Toshiharu Harada ,  Takehiro Matsuo ,  Yosuke Yamamoto ,  Kazuyuki Hayashi

IPC: G11B5/712 ,  B22F9/20 ,  B32B15/02

CPC classification number: G11B5/714 ,  B22F1/0025 ,  B22F9/22 ,  B22F2998/10 ,  B82Y30/00 ,  C22C2202/02 ,  G11B5/70642 ,  Y10T428/12014 ,  B22F2201/05 ,  B22F2201/013

Abstract: The present invention relates to ferromagnetic metal particles having an average major axis diameter (L) of 10 to 100 nm which satisfy a relationship between the average major axis diameter (L) and a particle SFD represented by the following formula: Particle SFD≦0.0001 L2−0.0217 L+1.75; a process for producing the ferromagnetic metal particles; and a magnetic recording medium using the ferromagnetic metal particles.

Abstract translation: 本发明涉及平均长轴直径（L）为10〜100nm的强磁性金属颗粒，其满足平均长轴直径（L）和由下式表示的颗粒SFD之间的关系：颗粒SFD 产生铁磁金属颗粒; 以及使用该强磁性金属粒子的磁记录介质。

公开(公告)号：US07517492B2

公开(公告)日：2009-04-14

申请号：US10580932

申请日：2003-12-01

Applicant: Jianxin Liu

Inventor： Jianxin Liu

IPC: B22F3/10

CPC classification number: B22F3/225 ,  B22F3/1007 ,  B22F2998/00 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y70/00 ,  C22C1/0416 ,  Y02P10/295 ,  B22F3/008 ,  B22F3/1055 ,  B22F2201/02 ,  B22F2201/05

Abstract: Methods for sintering aluminum powder comprise providing aluminum powder and heating the aluminum powder in a nitrogen atmosphere containing a partial pressure of water vapor in the range of about 0.001 kPa to about 0.020 kPa to sinter the aluminum powder to a transverse rupture strength of at least about 13.8 MPa. The aluminum powder is not pressed together by a mechanical force that substantially deforms particles of said aluminum powder either prior to or during the step of heating. Articles comprising sintered aluminum powder. The sintered aluminum powder has a transverse rupture strength of at least about 13.8 MPa. The microstructure of the sintered aluminum powder contains no compositional concentration gradients indicative of the use of a sintering aid and no evidence of particle deformation having occurred by an application of a mechanical force prior to or during the sintering of the aluminum powder.

Abstract translation: 烧结铝粉的方法包括提供铝粉末并在含有约0.001kPa至约0.020kPa范围内的水蒸气分压的氮气气氛中加热铝粉，以将铝粉末烧结至至少约的横向断裂强度 13.8MPa。 铝粉末不通过在加热步骤之前或加热步骤期间使铝粉末的颗粒基本上变形的机械力而被压在一起。 包含烧结铝粉末的制品。 烧结铝粉末的横向断裂强度为至少约13.8MPa。 烧结铝粉末的微结构不包含指示使用烧结助剂的组成浓度梯度，并且在铝粉烧结之前或期间不施加机械力而没有发生颗粒变形的迹象。