公开(公告)号：US07192466B2

公开(公告)日：2007-03-20

申请号：US10363672

申请日：2001-09-20

Applicant: Stephane Revol ,  Regis Baccino

Inventor： Stephane Revol ,  Regis Baccino

IPC: B22F9/10

CPC classification number: B22F9/08 ,  B22F2009/0812 ,  B22F2009/0824 ,  B22F2009/0828 ,  B22F2009/0844 ,  B22F2009/0892 ,  B22F2999/00 ,  C22C43/00 ,  G21C3/60 ,  Y02E30/35 ,  Y02E30/38 ,  B22F2201/10 ,  B22F2202/03 ,  B22F2201/05

Abstract: Nuclear metal or alloy particle preparation method and device; said device comprising: means to prepare a fluid mass of the metal or alloy by melting; means to put the fluid mass of the metal or metal alloy in the form of a molten metal or alloy stream; means to impart a centrifugal rotation movement to a quenching fluid and carry out the atomisation of the molten metal or metal alloy stream particles and the quick quenching of the particles; means to melt the nuclear metal or metal alloy in an inert gas atmosphere, and means to surround the molten metal or metal alloy stream by a neutral gas envelope until quenching.

Abstract translation: 核金属或合金颗粒的制备方法和装置; 所述装置包括：通过熔化制备所述金属或合金的流体块的装置; 将金属或金属合金的流体质量置于熔融金属或合金流的形式的装置; 将淬火流体进行离心旋转运动并执行熔融金属或金属合金流颗粒的雾化以及颗粒快速骤冷的手段; 用于在惰性气体气氛中熔化核金属或金属合金的装置，以及通过中性气体包层围绕熔融金属或金属合金流直到淬火的手段。

公开(公告)号：US06764607B1

公开(公告)日：2004-07-20

申请号：US10069921

申请日：2002-04-02

Applicant: Takashi Ikegami

Inventor： Takashi Ikegami

IPC: C04B3504

CPC classification number: H01F1/0578 ,  B22F1/0088 ,  B22F2999/00 ,  H01F1/0571 ,  H01F41/026 ,  B22F2201/05

Abstract: A powder for forming a R—Fe—B bonded magnet, wherein an R compound, such as an R oxide, an R carbide, an R nitride or an R hydride, which is contained in a raw material powder such as a super rapidly cooled powder or a hydrogen treated powder (HDDR powder) and reacts with water vapor to change into R(OH)3, has been converted to a R hydroxide R(OH)3 being stable in the air by subjecting the raw material powder to a heat treatment in an atmosphere of a pressured water vapor. The powder for forming an R—Fe—B bonded magnet is free from the generation of a white powder in the surface of or inside a bonded magnet formed from the powder and accordingly, is free from the occurrence or cracking, chipping, swelling or the like in the bonded magnet caused by volume expansion of a white powder. Thus, the above powder can be used for preparing an R—Fe—B bonded magnet which is free from the white powder which has been observed in a conventional R—Fe—B bonded magnet in the use for a long period of time and is reduced in the occurrence of defects such as cracking, chipping, swelling and the like.

Abstract translation: 用于形成R-Fe-B粘结磁体的粉末，其中包含在诸如超快速冷却的原料粉末中的R化合物，例如R氧化物，R碳化物，R氮化物或R氢化物 粉末或氢处理粉末（HDDR粉末）并与水蒸汽反应以转化为R（OH）3，已经转化为在空气中稳定的氢氧化R（OH）3，使原料粉末受热 在压力水汽的气氛中进行处理。 用于形成R-Fe-B粘结磁体的粉末在由粉末形成的粘结磁体的表面或内部没有产生白色粉末，因此没有发生或开裂，碎裂，溶胀或 像粘结磁体一样，由白色粉末的体积膨胀引起。 因此，上述粉末可用于制备在常规R-Fe-B粘结磁体中长时间观察到的不含白色粉末的R-Fe-B粘结磁体，并且是 减少了诸如破裂，碎裂，膨胀等缺陷的发生。

公开(公告)号：US20030172776A1

公开(公告)日：2003-09-18

申请号：US10363672

申请日：2003-03-06

Inventor： Stephane Revol ,  Regis Baccino

IPC: B22F009/08

CPC classification number: B22F9/08 ,  B22F2009/0812 ,  B22F2009/0824 ,  B22F2009/0828 ,  B22F2009/0844 ,  B22F2009/0892 ,  B22F2999/00 ,  C22C43/00 ,  G21C3/60 ,  B22F2201/10 ,  B22F2202/03 ,  B22F2201/05

Abstract: Nuclear metal or alloy particle preparation method and device; said device comprising means to prepare a fluid mass of the metal or alloy by melting ; means to put the fluid mass of the metal or metal alloy in the form of a molten metal or alloy stream ; means to impart a centrifugal rotation movement to a quenching fluid and carry out the atomisation of the molten metal or metal alloy stream particles and the quick quenching of the particles means to melt the nuclear metal or metal alloy in an inert gas atmosphere, and means to surround the molten metal or metal alloy stream by a neutral gas envelope until quenching. Single figure.

Abstract translation: 核金属或合金颗粒的制备方法和装置; 所述装置包括通过熔化来制备金属或合金的流体块的装置; 将金属或金属合金的流体质量置于熔融金属或合金流的形式的装置; 对淬火流体进行离心旋转运动并执行熔融金属或金属合金流粒子的雾化的手段，并且颗粒的快速骤冷意味着在惰性气体气氛中熔化核金属或金属合金，并且意味着 通过中性气体包围围绕熔融金属或金属合金流直到淬火。 单身人物

公开(公告)号：US20240110265A1

公开(公告)日：2024-04-04

申请号：US18120258

申请日：2023-03-10

Applicant: HYUNDAI MOTOR COMPANY ,  KIA CORPORATION

Inventor： Hak Soo Kim

IPC: C22C38/22 ,  B22F1/10 ,  B22F3/10

CPC classification number: C22C38/22 ,  B22F1/10 ,  B22F3/10 ,  B22F2201/013 ,  B22F2201/02 ,  B22F2201/05 ,  B22F2301/35 ,  B22F2998/00

Abstract: A sintered material for aluminum die casting can prevent the strength from being lowered even after steam treatment. The sintered material for aluminum die casting is a sintered material used as an insert at the time of aluminum die casting, and contains Cr: 0.71 to 0.97 wt %, Mo: 0.10 to 0.20 wt %, and C: 0.64 to 0.87 wt %, with the remainder being Fe and other unavoidable impurities.

公开(公告)号：US20190232365A1

公开(公告)日：2019-08-01

申请号：US16092790

申请日：2017-04-10

Applicant: AP&C ADVANCED POWDERS & COATINGS INC.

Inventor： Frédéric LAROUCHE ,  Frédéric MARION ,  Matthieu BALMAYER

IPC: B22F1/02 ,  B22F1/00 ,  B22F9/08 ,  B33Y70/00

CPC classification number: B22F1/02 ,  B22F1/0088 ,  B22F9/082 ,  B22F2999/00 ,  B33Y70/00 ,  B22F2201/03 ,  B22F2201/04 ,  B22F2201/05

Abstract: There are provided reactive metal powder in-flight heat treatment processes. For example, such processes comprise providing a reactive metal powder; and contacting the reactive metal powder with at least one additive gas while carrying out said in-flight heat treatment process, thereby obtaining a raw reactive metal powder.

公开(公告)号：US20180236548A1

公开(公告)日：2018-08-23

申请号：US15750703

申请日：2017-04-04

Applicant: Sumitomo Electric Industries, Ltd. ,  SUMITOMO ELECTRIC SINTERED ALLOY, LTD.

Inventor： Tomoyuki Ishimine ,  Tetsuya Hayashi ,  Terukazu Tokuoka ,  Toshihiko Kaji

IPC: B22F3/10 ,  B22F3/03 ,  B22F5/08 ,  C22C33/02

CPC classification number: B22F3/10 ,  B22F1/0007 ,  B22F1/0059 ,  B22F3/03 ,  B22F5/008 ,  B22F5/06 ,  B22F5/08 ,  B22F5/085 ,  B22F5/10 ,  B22F2003/026 ,  B22F2003/247 ,  B22F2009/0828 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/02 ,  C22C33/0264 ,  C22C38/00 ,  B22F3/02 ,  B22F2009/0824 ,  B22F2201/30 ,  B22F2201/05 ,  B22F2201/01

Abstract: A sintered body manufacturing method includes: a preparation step of preparing a raw material powder containing an iron-based metal powder; a molding step of subjecting the raw material powder to uniaxial pressing using a die to produce a green compact having an overall average relative density of 93% or more; a machining step of machining the green compact to produce a machined compact; and a sintering step of sintering the machined compact to obtain a sintered body.

公开(公告)号：US20170098496A1

公开(公告)日：2017-04-06

申请号：US15382672

申请日：2016-12-18

Applicant: SHENYANG GENERAL MAGNETIC CO., LTD.

Inventor： Baoyu Sun ,  Yongli Duan

IPC: H01F1/057 ,  C22C38/16 ,  C22C38/14 ,  C22C38/10 ,  C22C38/06 ,  C22C38/00 ,  C22C33/04 ,  B22F9/08 ,  B22F1/00 ,  B22F9/04 ,  B22F3/16 ,  B22F3/087 ,  B22F3/10 ,  C21D9/00 ,  C21D6/00 ,  H01F41/02

CPC classification number: C21D6/007 ,  B22F1/0055 ,  B22F3/101 ,  B22F3/16 ,  B22F3/162 ,  B22F2998/10 ,  B22F2999/00 ,  C21D9/00 ,  C22C33/02 ,  C22C33/04 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C38/14 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F1/059 ,  H01F41/0293 ,  B22F9/08 ,  B22F2009/048 ,  B22F2009/044 ,  B22F3/02 ,  B22F3/10 ,  B22F2201/02 ,  B22F2201/20 ,  B22F2201/05

Abstract: A high-performance NdFeB permanent magnet including a nitride phase and a production method thereof are provided. A main phase of the NdFeB permanent magnet has a structure of R2T14B; a grain boundary phase is distributed around the main phase and contains N, F, Zr, Ga and Cu; a composite phase containing R1, Tb and N exists between the main phase and the grain boundary phase and includes a phase having a structure of (R1, Tb)2T14(B, N). R represents at least two rare earth elements, and includes Pr and Nd; T represents Fe, Mn, Al and Co; R1 represents at least one rare earth element, and includes at least one of Dy and Tb; the main phase contains Pr, Nd, Fe, Mn, Al, Co and B; and the grain boundary phase further contains at least one of Nb and Ti. Through placing partially B by N, a magnetic performance is increased.

公开(公告)号：US20170025215A1

公开(公告)日：2017-01-26

申请号：US15124942

申请日：2015-03-12

Applicant: HITACHI METALS, LTD.

Inventor： Kazunori NISHIMURA ,  Shin NOGUCHI ,  Toshio MIHARA

IPC: H01F27/255 ,  H01F1/147 ,  H01F1/22 ,  H01F41/02

CPC classification number: H01F27/255 ,  B22F1/02 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0278 ,  C22C38/00 ,  C22C2202/02 ,  H01F1/147 ,  H01F1/22 ,  H01F1/26 ,  H01F41/0246 ,  B22F1/0059 ,  B22F3/22 ,  B22F3/02 ,  B22F3/16 ,  B22F2003/248 ,  B22F1/0011 ,  B22F9/082 ,  B22F2009/0828 ,  B22F2009/0824 ,  B22F1/0096 ,  B22F3/1017 ,  B22F2003/023 ,  B22F2003/245 ,  B22F3/10 ,  B22F2003/026 ,  B22F2201/05 ,  B22F2201/03

Abstract: An object of the invention is to provide a method that is for manufacturing a powder magnetic core through simple compression molding and capable of manufacturing a complicatedly shaped powder magnetic core with reliable high strength and insulating properties. The invention is directed to a method for manufacturing a powder magnetic core with a metallic soft magnetic material powder, the method including: a first step including mixing a soft magnetic material powder and a binder; a second step including compression molding the mixture obtained after the first step; a third step including performing at least one of grinding and cutting on the compact obtained after the second step; and a fourth step including heat-treating the compact after the third step, wherein in the fourth step, the compact is heat-treated so that an oxide layer containing an element constituting the soft magnetic material powder is formed on the surface of the soft magnetic material powder.

Abstract translation: 本发明的目的是提供一种通过简单的压缩成型制造粉末磁芯并且能够制造具有可靠的高强度和绝缘性能的复杂形状的粉末磁芯的方法。 本发明涉及一种用金属软磁性材料粉末制造粉末磁芯的方法，所述方法包括：第一步骤，包括混合软磁性材料粉末和粘合剂; 第二步骤，包括在第一步骤后获得的混合物压缩成型; 第三步骤，包括对在第二步骤之后获得的压块进行研磨和切割中的至少一个; 以及在第三工序之后进行热处理的第四工序，其中在第四工序中，对压制体进行热处理，使得在软磁体的表面上形成含有构成软磁性材料粉末的元素的氧化物层 材料粉。

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。

公开(公告)号：US20150115766A1

公开(公告)日：2015-04-30

申请号：US14522162

申请日：2014-10-23

Applicant: Hitachi Metals, Ltd.

Inventor： Masami TAGUCHI ,  Shigeho TANIGAWA ,  Shin NOGUCHI

IPC: H01F1/153 ,  H02K1/06 ,  H01F27/255 ,  B22F3/12 ,  B22F1/02

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。