公开(公告)号：US07056397B2

公开(公告)日：2006-06-06

申请号：US10275158

申请日：2001-05-16

Applicant: Dag Noréus ,  Ye Zhou

Inventor： Dag Noréus ,  Ye Zhou

IPC: C21D10/00

CPC classification number: H01M4/383 ,  B22F1/0088 ,  B22F2999/00 ,  B22F2201/05 ,  B22F9/16 ,  B22F2201/013

Abstract: The invention concerns a method of improving the properties of a hydrogen storage alloy powder for a negative electrode of a rechargeable nickel hydride battery. The method comprises the steps of hydriding a powdered alloy starting material, oxidizing the obtained hydride alloy powder and washing the oxidized powder. The invention also concerns the obtained powder.

Abstract translation: 本发明涉及一种改善可再充电镍氢电池负极的储氢合金粉末的性能的方法。 该方法包括氢化粉末合金原料，氧化所得氢化物合金粉末并洗涤氧化粉末的步骤。 本发明还涉及获得的粉末。

公开(公告)号：US06537489B2

公开(公告)日：2003-03-25

申请号：US09972915

申请日：2001-10-10

Applicant: Sven Allroth ,  Björn Johansson ,  Paul Skoglund

Inventor： Sven Allroth ,  Björn Johansson ,  Paul Skoglund

IPC: B22F308

CPC classification number: C22C33/02 ,  B22F3/087 ,  B22F2003/023 ,  B22F2003/026 ,  B22F2003/145 ,  B22F2998/00 ,  B22F2999/00 ,  C22C33/0207 ,  B22F9/082 ,  B22F2201/05

Abstract: The present invention concerns a method of preparing PM products by high velocity compaction of iron or iron-based powers having irregular powder particles.

公开(公告)号：US06355087B1

公开(公告)日：2002-03-12

申请号：US09618725

申请日：2000-07-18

Applicant: Johan Arvidsson ,  Ola Eriksson

Inventor： Johan Arvidsson ,  Ola Eriksson

IPC: B22F904

CPC classification number: C22C33/0264 ,  B22F1/0085 ,  B22F1/0088 ,  B22F2999/00 ,  C21D3/02 ,  B22F9/082 ,  B22F2201/05 ,  C21D3/04

Abstract: The invention concerns a low pressure for the preparation of an iron-based, optionally alloyed powder comprising the steps of preparing a raw powder essentially consisting of iron and optionally at least one alloying element selected from the group consisting of chromium, manganese, copper, nickel, vanadium, niobium, boron, silicon, molybdenum and tungsten; charging a gas tight furnace with the powder in an essentially inert gas atmosphere and closing the furnace; increasing the furnace temperature; monitoring the increase of the formation of CO gas and evacuating gas from the furnace when a significant increase of the CO formation is observed and cooling the powder when the increase of the formation of CO gas diminishes.

Abstract translation: 本发明涉及用于制备铁基，任选合金粉末的低压，包括以下步骤：制备基本上由铁组成的原料粉末和任选的至少一种选自铬，锰，铜，镍的合金元素 ，钒，铌，硼，硅，钼和钨; 在基本上惰性气体气氛中将粉末装入气密炉中并关闭炉子; 提高炉温; 当CO气体形成的显着增加被观察到时，监测CO气体形成的增加和从炉中排出气体的增加，并且当CO气体的形成增加时，粉末冷却。

公开(公告)号：US06342087B1

公开(公告)日：2002-01-29

申请号：US09465324

申请日：1999-12-17

Applicant: Johan Arvidsson ,  Alf Tryggmo

Inventor： Johan Arvidsson ,  Alf Tryggmo

IPC: B22F100

CPC classification number: C22C33/0285 ,  B22F2998/10 ,  B22F2999/00 ,  B22F9/082 ,  B22F1/0088 ,  B22F2201/013 ,  B22F2201/05

Abstract: The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10% of chromium, adjusting the carbon content of the melt to a value which is decided by the expected oxygen content after water atomising; water-atomising the melt and annealing the as-atomised powder at a temperature of at least 1120° C. in a reducing atmosphere containing controlled amounts of water. The invention also concerns a water-atomised powder including 10% by weight of chromium and having a carbon content between 0.2 and 0.7, preferably between 0.4 and 0.6% by weight and an oxygen/carbon ratio of about 1 to 3 and at most 0.5% of impurities, as well as the annealed powder obtained according to the process.

Abstract translation: 本发明涉及一种生产低氧，基本上不含碳的不锈钢粉末的方法，该方法包括以下步骤：制备钢铁，除了含铁和至少10％的铬之外，还将铁熔体的碳含量调节至一个值 由水雾化后预期的氧含量决定; 使熔融物雾化并在至少1120℃的温度下在含有受控量的水的还原气氛中将雾化的粉末退火。 本发明还涉及一种水雾化粉末，其包括10重量％的铬，其碳含量在0.2和0.7之间，优选在0.4-0.6重量％之间，氧/碳比约为1到3，最多为0.5％ 的杂质，以及根据该方法获得的退火粉末。

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。