公开(公告)号：US09457405B2

公开(公告)日：2016-10-04

申请号：US13799796

申请日：2013-03-13

Applicant: Maria Bozena Winnicka ,  Gary A. Rozak

Inventor： Maria Bozena Winnicka ,  Gary A. Rozak

IPC: B22F5/10 ,  C30B11/00 ,  C30B15/10 ,  B22F3/00 ,  B22F3/04 ,  B22F3/10 ,  B22F5/00 ,  B22F7/06 ,  C30B35/00 ,  C30B29/20

CPC classification number: C30B35/002 ,  B22F3/001 ,  B22F3/04 ,  B22F3/1007 ,  B22F3/1017 ,  B22F3/16 ,  B22F3/24 ,  B22F5/00 ,  B22F5/10 ,  B22F7/008 ,  B22F7/06 ,  B22F2003/248 ,  B22F2201/013 ,  B22F2301/20 ,  B22F2302/45 ,  B22F2998/10 ,  B22F2999/00 ,  C30B11/002 ,  C30B15/10 ,  C30B29/20 ,  Y10T117/1024 ,  B22F2201/016 ,  B22F2203/11 ,  B22F2207/01

Abstract: In various embodiments, a precursor powder is pressed into an intermediate volume and chemically reduced, via sintering, to form a metallic shaped article.

Abstract translation: 在各种实施方案中，将前体粉末压制成中间体积并通过烧结化学还原以形成金属成形制品。

公开(公告)号：US20160258044A1

公开(公告)日：2016-09-08

申请号：US15155632

申请日：2016-05-16

Applicant: HOGANAS AB (PUBL)

Inventor： Ola LITSTRÖM ,  Sven BENGTSSON ,  Robert FRYKHOLM ,  Ola Bergman

IPC: C22C33/02 ,  B22F9/08 ,  B22F1/00

CPC classification number: C22C33/0264 ,  B22F1/0011 ,  B22F1/0059 ,  B22F1/007 ,  B22F9/082 ,  B22F2009/0828 ,  B22F2998/10 ,  B22F2999/00 ,  C21D3/00 ,  C21D7/13 ,  C21D2211/005 ,  C21D2211/009 ,  C22C38/002 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/18 ,  C22C38/24 ,  B22F1/0085 ,  B22F2201/013 ,  B22F3/02 ,  B22F3/1007 ,  B22F3/17

Abstract: A water atomized pre-alloyed iron-based steel powder which includes by weight-%: 0.4-2.0 Cr, 0.1-0.8 Mn, less than 0.1 V, less than 0.1 Mo, less than 0.1 Ni, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron.

Abstract translation: 一种水雾化的预合金铁基钢粉末，其包括重量％：0.4-2.0Cr，0.1-0.8Mn，小于0.1V，小于0.1Mo，小于0.1Ni，小于0.2Cu，小于 0.1 C，小于0.25 O，小于0.5的不可避免的杂质，余量为铁。

公开(公告)号：US20160225500A1

公开(公告)日：2016-08-04

申请号：US15010539

申请日：2016-01-29

Applicant: TODA KOGYO CORP.

Inventor： Shohei KANEKO ,  Kuniyoshi SHIGEOKA ,  Nobuhiro KATAYAMA ,  Koichiro MORIMOTO

IPC: H01F1/08 ,  C22C38/10 ,  B22F9/02 ,  C22C38/00 ,  H01F1/053 ,  C22C38/14 ,  C22C38/06

CPC classification number: H01F1/083 ,  B22F9/023 ,  B22F2201/013 ,  B22F2203/13 ,  B22F2301/355 ,  B22F2998/10 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C2202/02 ,  H01F1/0572 ,  H01F1/0573 ,  H01F1/0578

Abstract: A process for producing R-T-B-based rare earth magnet powder having excellent coercive force and high remanent flux density. A process for producing R-T-B-based rare earth magnet powder by HDDR treatment, in which a raw material alloy for the R-T-B-based rare earth magnet powder includes R (wherein R represents at least one rare earth element including Y), T (wherein T represents Fe, or Fe and Co) and B (wherein B represents boron), and has a composition including R in an amount of between 12.0 atom % and 17.0 atom %, and B in an amount of between 4.5 atom % and 7.5 atom %; the HDDR treatment includes a DR step including a preliminary evacuation step and a complete evacuation step; and a rate of pressure reduction caused by evacuation in the preliminary evacuation step is not less than 1 kPa/min and not more than 30 kPa/min.

Abstract translation: 一种制造具有优良的矫顽力和高剩磁通密度的R-T-B系稀土磁体粉末的方法。 一种通过HDDR处理生产RTB的稀土磁体粉末的方法，其中用于RTB的稀土磁体粉末的原料合金包括R（其中R表示至少一种包含Y的稀土元素），T（其中T 表示Fe或Fe和Co）和B（其中B表示硼），并且其组成包括R为12.0原子％至17.0原子％的量，B为4.5原子％至7.5原子％ ; HDDR处理包括DR步骤，包括预抽真空步骤和完全抽空步骤; 并且在预抽真空步骤中由排气引起的压力降低率不小于1kPa / min且不大于30kPa / min。

公开(公告)号：US09378876B2

公开(公告)日：2016-06-28

申请号：US13980703

申请日：2012-01-19

Applicant: Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

Inventor： Migaku Takahashi ,  Tomoyuki Ogawa ,  Yasunobu Ogata ,  Naoya Kobayashi ,  Chammika Ruwan Polwatta Gallage ,  Kaori Kohara

IPC: H01F1/00 ,  H01F1/06 ,  B22F1/02 ,  B22F9/22 ,  H01F1/01 ,  C22C29/16 ,  H01F41/02 ,  C01B21/06 ,  H01F1/08 ,  H01F41/00 ,  C22C21/00

CPC classification number: H01F1/01 ,  B22F1/02 ,  B22F9/22 ,  B22F2999/00 ,  C01B21/0622 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/42 ,  C22C21/00 ,  C22C29/16 ,  H01F1/065 ,  H01F1/083 ,  H01F1/086 ,  H01F41/00 ,  H01F41/0266 ,  B22F2201/013

Abstract: Ferromagnetic particles including an Fe16N2 compound phase in an amount of not less than 80% as measured by Mössbauer spectrum and each having an outer shell in which FeO is present in the form of a film having a thickness of not more than 5 nm. Ferromagnetic particles may be made by subjecting iron oxide or iron oxyhydroxide having an average major axis diameter of 40 to 5000 nm and an aspect ratio (major axis diameter/minor axis diameter) of 1 to 200 as a starting material to dispersing treatment to prepare aggregated particles; subjecting the iron compound particles passed through a mesh to hydrogen reducing treatment at a temperature of 160 to 420° C.; and then subjecting the resulting particles to nitridation treatment at a temperature of 130 to 170° C.

Abstract translation: 包含Fe6N2化合物相的铁磁性粒子，其量通过莫斯鲍尔光谱测定为不小于80％，并且各自具有其中FeO以厚度不大于5nm的膜的形式存在的外壳。 铁磁颗粒可以通过使平均长轴直径为40〜5000nm，长径比（长轴径/短轴直径）为1〜200的氧化铁或羟基氧化铁作为起始原料进行分散处理，制成凝集体 粒子; 使通过网的铁化合物颗粒在160〜420℃的温度下进行氢还原处理。 然后在130〜170℃的温度下对得到的粒子进行氮化处理。

公开(公告)号：US09321103B2

公开(公告)日：2016-04-26

申请号：US13984409

申请日：2011-12-15

Applicant: Yasuhiko Sakaguchi ,  Toshio Maetani

Inventor： Yasuhiko Sakaguchi ,  Toshio Maetani

IPC: B22F1/00 ,  F27B9/04 ,  F27B9/24

CPC classification number: B22F1/0088 ,  B22F1/0003 ,  B22F1/0081 ,  B22F1/0085 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2201/32 ,  B22F2301/35 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/74 ,  C21D3/02 ,  C21D3/04 ,  C21D3/08 ,  F27B9/028 ,  F27B9/045 ,  F27B9/047 ,  F27B9/243 ,  F27D7/02

Abstract: In a finish heat treatment method and finish heat treatment apparatus for an iron powder, a raw iron powder is placed on a continuous moving hearth and continuously charged into the apparatus. In the pretreatment zone, the raw iron powder is subjected to a pretreatment of heating the raw iron powder in an atmosphere of hydrogen gas and/or inert gas at 450 to 1100° C. In decarburization, deoxidation, and denitrification zones, the pretreated iron powder is subsequently subjected to at least two treatments of decarburization, deoxidation, and denitrification. In the pretreatment zone, a hydrogen gas and/or an inert gas serving as a pretreatment ambient gas is introduced separately from an ambient gas used in the at least two treatments is introduced from the upstream side of the pretreatment zone and released from the downstream side so as to flow in the same direction as a moving direction of the moving hearth.

Abstract translation: 在热处理方法和铁粉末热处理装置中，将生铁粉放置在连续移动的炉床上，并连续地装入装置。 在预处理区域中，在450〜1100℃的氢气和/或惰性气体气氛中对生铁粉进行预处理。在脱碳，脱氧，脱氮区中，预处理的铁 粉末随后进行至少两次脱碳，脱氧和脱氮处理。 在预处理区域中，将氢气和/或用作预处理环境气体的惰性气体与从至少两个处理中使用的环境气体分开引入，从预处理区域的上游侧引入并从下游侧释放 以便沿与移动炉床的移动方向相同的方向流动。

公开(公告)号：US20160104580A1

公开(公告)日：2016-04-14

申请号：US14895187

申请日：2013-06-13

Applicant: ISHIHARA CHEMICAL CO., LTD.

Inventor： Takayuki MAESHIMA ,  Yasunori YONEHANA ,  Hisakazu SAKAI ,  Jyun FURUTANI ,  Issei SATOH

IPC: H01G9/042 ,  B22F1/00 ,  B22F9/22

CPC classification number: H01G9/042 ,  B22F1/0003 ,  B22F1/0018 ,  B22F9/22 ,  B22F2201/013 ,  B22F2301/20 ,  B22F2304/10 ,  C22C1/045 ,  H01G9/0029 ,  H01G9/15

Abstract: Method of producing Ta powder for tantalum solid electrolytic capacitor capable of stably providing CV value of more than 220 k and to provide the Ta powder and its Ta granulated powder. In method of producing Ta powder by vaporizing TaCl5 through heating and reducing with H2 gas, the reduction is performed under conditions that feeding rate of TaCl5 vapor passing through section area of reaction field of 1 cm2 for 1 minute is 0.05˜5.0 g/cm2·min and residence time of TaCl5 vapor in the reduction reaction field is 0.1˜5 seconds and reduction temperature of TaCl5 is 1100˜1600° C., whereby Ta powder including a single phase of β-Ta of tetragonal system or mixed phase of β-Ta and α-Ta of cubic system and having average particle size of 30˜150 nm is obtained. Further, Ta granulated powder is obtained by granulating the Ta powder.

Abstract translation: 制备能够稳定提供超过220k的CV值的钽固体电解电容器的Ta粉末的方法，并提供Ta粉末及其Ta粒状粉末。 在通过用氢气加热还原的TaCl 5蒸发生产Ta粉末的方法中，在通过1cm 2的反应场的面积的TaCl 5蒸气的进料速率为0.05〜5.0g / cm 2的条件下进行还原。 min和TaCl5蒸气在还原反应场中的停留时间为0.1〜5秒，TaCl 5的还原温度为1100〜1600℃，由此，包含单相的Ta粉末和-ba的四方晶系或混合相的Ta粉末 ; - 得到平均粒径为30〜150nm的立方体系的Ta和α-Ta。 此外，通过造粒Ta粉末获得Ta造粒粉末。

公开(公告)号：US20160096739A1

公开(公告)日：2016-04-07

申请号：US14867466

申请日：2015-09-28

Applicant: InNova Powders, Inc.

Inventor： Carla D. Di Luca

IPC: C01G49/06

CPC classification number: C01G49/06 ,  A23L29/015 ,  A23L33/16 ,  B22F1/0011 ,  B22F9/22 ,  B22F2999/00 ,  C01P2004/61 ,  C01P2006/12 ,  C22C33/02 ,  B22F2201/013 ,  B22F2202/15

Abstract: A porous iron powder consisting essentially of a reduced iron powder having a specific surface area above 3000 m2/kg. The reduced iron powder is ferric oxide in a hydrogen environment and mechanical fluid bed operating at barometric pressure. The hydrogen environment has a pH2/pH2O ratio above 2.3. The reduced iron powder is ferric oxide produced by roasting of a solution of ferrous chloride. The end-product particle size is between 1 and 45 microns and has an in-vitro dissolution rate of 100% in at most twenty minutes.

Abstract translation: 一种多孔铁粉，其主要由比表面积高于3000m2 / kg的还原铁粉组成。 还原铁粉是在氢环境中的氧化铁和在大气压力下操作的机械流化床。 氢环境的pH2 / pH2O比例高于2.3。 还原铁粉是通过焙烧氯化亚铁溶液而产生的氧化铁。 最终产品的粒度为1至45微米，并且在最多20分钟内具有100％的体外溶出速率。

公开(公告)号：US09279617B2

公开(公告)日：2016-03-08

申请号：US14079768

申请日：2013-11-14

Applicant: Ulrich Gerhard Baudis

Inventor： Ulrich Gerhard Baudis

IPC: C22B9/05 ,  F27B19/02 ,  B22F9/18 ,  C22B5/04

CPC classification number: F27B19/02 ,  B22F9/18 ,  B22F9/20 ,  B22F9/22 ,  B22F2999/00 ,  C22B5/04 ,  C22B34/10 ,  C22B34/1268 ,  C22B34/1277 ,  C22B34/14 ,  F27D2005/0075 ,  Y10T428/2982 ,  B22F2201/013 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2201/04 ,  B22F2201/30 ,  B22F2201/40

Abstract: A reaction vessel for making phlegmatized metal powder or alloy powder has a retort crucible with a heat-proof, coolable cover, a heatable reduction furnace into which the retort crucible may be inserted, and an inner crucible placed within the retort crucible and removable therefrom. At least one inlet is built into the coolable cover for adding a passivating gas. A heat-proof flange welded onto the retort crucible attaches the retort crucible to the heat-proof, coolable cover. A cooler welded onto a lower face of the heat-proof flange provides a cooling agent to the reaction vessel.

Abstract translation: 用于制造钝化金属粉末或合金粉末的反应容器具有带有耐热冷却盖的蒸煮坩埚，可插入蒸煮坩埚的可加热还原炉，以及放置在蒸煮坩埚内并可从其中除去的内坩埚。 至少一个入口内置在可冷却盖中，用于添加钝化气体。 焊接在蒸馏坩埚上的防热法兰将蒸馏坩埚连接到耐热可冷却的盖子上。 焊接到耐热凸缘的下表面上的冷却器向反应容器提供冷却剂。

公开(公告)号：US20160064125A1

公开(公告)日：2016-03-03

申请号：US14474990

申请日：2014-09-02

Applicant: TAIWAN POWDER TECHNOLOGIES CO., LTD.

Inventor： Kuen-Shyang HWANG ,  Yung-Chung LU ,  Yang-Liang FAN ,  Wei-Chen TSENG

IPC: H01F1/22 ,  B22F3/12 ,  H01F41/02

CPC classification number: H01F1/22 ,  B22F3/12 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0433 ,  C22C19/03 ,  C22C19/07 ,  C22C30/00 ,  C22C33/0285 ,  C22C38/00 ,  C22C38/002 ,  C22C38/02 ,  C22C38/08 ,  C22C38/10 ,  C22C2202/02 ,  H01F41/0246 ,  B22F9/026 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/013 ,  B22F2201/20 ,  B22F2201/02

Abstract: A powder metallurgical method for fabricating a high-density soft magnetic metallic material comprises steps of providing an initial powder; using a spray drying process to fabricate the initial powder into a spray-dried powder; placing the spray-dried powder in a mold and compacting the spray-dried powder under a compacting pressure and a compacting temperature to form a green compact; and sintering the green compact at a sintering temperature to form a soft magnetic metallic material. The spray-dried powder, which is fabricated by the spray drying process, has superior flowability, compactability and compressibility and is suitable for the press-and-sinter process. The soft magnetic metallic material fabricated by the present invention is outstanding in sintered density and magnetic performance. The present invention adopts the inexpensive press-and-sinter process and has a low fabrication cost.

Abstract translation: 一种用于制造高密度软磁金属材料的粉末冶金方法，包括提供初始粉末的步骤; 使用喷雾干燥方法将初始粉末制成喷雾干燥的粉末; 将喷雾干燥的粉末放置在模具中，并在压实压力和压实温度下压实喷雾干燥的粉末以形成生坯; 并在烧结温度下烧结生坯以形成软磁性金属材料。 通过喷雾干燥方法制造的喷雾干燥粉末具有优异的流动性，可压缩性和压缩性，并且适用于压制和烧结过程。 通过本发明制造的软磁性金属材料在烧结密度和磁性方面是突出的。 本发明采用廉价的压制和烧结工艺，制造成本低。

公开(公告)号：US09233419B2

公开(公告)日：2016-01-12

申请号：US13968770

申请日：2013-08-16

Applicant: Benno Gries

Inventor： Benno Gries

IPC: C22C27/04 ,  B22F1/00 ,  B22F9/22 ,  C22B5/14 ,  C22B34/34

CPC classification number: B22F1/0003 ,  B22F9/22 ,  B22F2201/013 ,  B22F2301/20 ,  B22F2999/00 ,  C22B5/14 ,  C22B34/34 ,  C22C27/04 ,  B22F2201/05 ,  B22F2201/02

Abstract: The invention relates to a process for producing sinterable molybdenum metal powder in a moving bed, sinterable molybdenum powder and its use.

Abstract translation: 本发明涉及一种在移动床，可烧结钼粉及其用途中生产可烧结钼金属粉末的方法。