公开(公告)号：US20100255332A1

公开(公告)日：2010-10-07

申请号：US12734775

申请日：2007-12-13

申请人： Tomoshige Ono ,  Shigeru Unami ,  Takashi Kawano ,  Yukiko Ozaki

发明人： Tomoshige Ono ,  Shigeru Unami ,  Takashi Kawano ,  Yukiko Ozaki

IPC分类号： B32B15/02 ,  B22F1/02

CPC分类号： B22F1/02 ,  B22F1/0077 ,  C22C33/02 ,  C22C33/0264 ,  Y10T428/12181

摘要： Flowability-improving particles are adhered to surfaces of iron powder through a binder to provide an iron-based powder for powder metallurgy which has excellent flowability and which is capable of uniformly filling a thin-walled cavity and compaction with high performance of ejection force.

摘要翻译： 流动性改善颗粒通过粘合剂粘附在铁粉表面上，得到粉末冶金用铁基粉末，其具有优异的流动性，并且能够均匀地填充薄壁腔体，并且具有高性能的喷射力。

公开(公告)号：US06638335B2

公开(公告)日：2003-10-28

申请号：US10123343

申请日：2002-04-16

申请人： Yukiko Ozaki ,  Masateru Ueta ,  Naomichi Nakamura

发明人： Yukiko Ozaki ,  Masateru Ueta ,  Naomichi Nakamura

IPC分类号： B22F100

CPC分类号： B22F1/0014 ,  C22C38/004

摘要： A highly compressible iron powder for powder metallurgy has an optimized particle size distribution. The Vickers microhardness of the particles that do not pass through the sieve having the nominal opening of 150 &mgr;m is controlled to be at most about 110. The iron powder is suitable for production of magnetic parts having high magnetism and mechanical parts having high mechanical strength.

摘要翻译： 用于粉末冶金的高度可压缩的铁粉具有优化的粒度分布。 不通过具有150μm标称开口的筛子的颗粒的维氏显微硬度被控制在至多约110.铁粉适用于生产具有高磁性的磁性部件和具有高机械强度的机械部件。

公开(公告)号：US5437741A

公开(公告)日：1995-08-01

申请号：US238330

申请日：1994-05-05

申请人： Yukiko Ozaki ,  Michio Shimotomai ,  Yasutaka Fukuda ,  Akira Fujita ,  Yoko Kitano ,  Junichi Shimomura

发明人： Yukiko Ozaki ,  Michio Shimotomai ,  Yasutaka Fukuda ,  Akira Fujita ,  Yoko Kitano ,  Junichi Shimomura

IPC分类号： C22C1/04 ,  C22C19/07 ,  H01F1/057

CPC分类号： H01F1/0577 ,  C22C1/0441 ,  C22C19/07

摘要： A corrosion-resistant rare earth metal-transition metal-boron permanent magnet having improved corrosion resistance and excellent magnetic properties, including RE: 10-25 at % (where RE is at least one of Y, Sc and lanthanides), B: 2-20 at % and the remainder being substantially Fe, Co and Ni. In this case, the magnet has an average crystal grain size of 0.1-50 .mu.m and includes a crystal grain boundary phase of RE(Ni.sub.1-x-y Co.sub.x Fe.sub.y) compound having a thickness of not more than 10 .mu.m.

摘要翻译： 具有改善的耐腐蚀性和优异的磁性能的耐腐蚀稀土金属 - 过渡金属 - 硼永磁体，包括RE：10-25at％（其中RE是Y，Sc和镧系元素中的至少一种），B：2- 20原子％，其余基本上为Fe，Co和Ni。 在这种情况下，磁体的平均晶粒尺寸为0.1-50μm，并且包括厚度不大于10μm的RE（Ni1-x-yCoxFey）化合物的晶界相。

公开(公告)号：US20100284239A1

公开(公告)日：2010-11-11

申请号：US12452857

申请日：2008-08-13

申请人： Yoshiaki Maeda ,  Kiyoshi Makino ,  Kotaro Okawa ,  Ichio Sakurada ,  Kuniaki Ogura ,  Yukiko Ozaki

发明人： Yoshiaki Maeda ,  Kiyoshi Makino ,  Kotaro Okawa ,  Ichio Sakurada ,  Kuniaki Ogura ,  Yukiko Ozaki

IPC分类号： B01F15/06

CPC分类号： B22F1/0077 ,  B22F1/0085 ,  C22C33/0264

摘要： The present invention provides a method for mixing a raw material powder for powder metallurgy that allows efficient mixing at a low cost with a simple measure and easy adjustment of the apparent density by performing first agitation mixing in which a powder mixture obtained by adding, to an iron powder, one or two or more members selected from lubricant powders, free-machining agent powders, and lubricant powders for sliding surface, an alloying powder, and a binding agent is agitated while increasing the temperature to a temperature TK equal to or higher than the melting point TM of the binding agent, the resultant is agitated while maintaining the temperature TK, and the resultant is further agitated while reducing the temperature from the temperature TK, and performing second agitation mixing in which the obtained powder mixture is agitated while cooling.

摘要翻译： 本发明提供一种混合粉末冶金用原料粉末的方法，其能够通过进行第一搅拌混合，通过简单的测量和容易调节表观密度，以低成本进行有效的混合，其中将通过添加到 铁粉，从润滑剂粉末，自由加工剂粉末和滑动表面用润滑剂粉末，合金粉末和粘合剂中选择的一种或两种以上的成分，同时将温度升高至等于或高于 粘合剂的熔点TM，在保持温度TK的同时搅拌所得物，并且在温度TK降低温度的同时进一步搅拌所得物，并进行第二搅拌混合，其中所得粉末混合物在冷却的同时被搅拌。

公开(公告)号：US07384446B2

公开(公告)日：2008-06-10

申请号：US10560080

申请日：2005-04-21

申请人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

发明人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

IPC分类号： B22F1/02

CPC分类号： C22C33/0207

摘要： Mo of 0.05 to 1.0% by mass is adhered to the surfaces of an iron-based powder containing Mn of 0.5% by mass or less and Mo of 0.2 to 1.5% by mass as prealloyed elements by diffusion bonding, whereby an alloy steel powder is formed. Furthermore, a Ni powder of 0.2 to 5% by mass and/or a Cu powder of 0.2 to 3% by mass are added to the alloy steel powder, whereby a mixed powder for powder metallurgy is formed. The mixed powder for powder metallurgy according to the present invention enables production of sintered bodies having high density as well as superior tensile strength and rotating bending fatigue strength.

摘要翻译： 通过扩散接合将0.05〜1.0质量％的Mo粘附到作为预合金元素的Mn为0.5质量％以下且Mo为0.2〜1.5质量％的铁基粉末的表面，由此合金钢粉末为 形成。 此外，在合金钢粉末中加入0.2〜5质量％的Ni粉末和/或0.2〜3质量％的Cu粉末，形成粉末冶金用混合粉末。 根据本发明的用于粉末冶金的混合粉末能够生产具有高密度以及优异的拉伸强度和旋转弯曲疲劳强度的烧结体。

公开(公告)号：US20070089562A1

公开(公告)日：2007-04-26

申请号：US10560080

申请日：2005-04-21

申请人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

发明人： Shigeru Unami ,  Satoshi Uenosono ,  Yukiko Ozaki

IPC分类号： B22F1/02

CPC分类号： C22C33/0207

摘要： Mo of 0.05 to 1.0% by mass is adhered to the surfaces of an iron-based powder containing Mn of 0.5% by mass or less and Mo of 0.2 to 1.5% by mass as prealloyed elements by diffusion bonding, whereby an alloy steel powder is formed. Furthermore, a Ni powder of 0.2 to 5% by mass and/or a Cu powder of 0.2 to 3% by mass are added to the alloy steel powder, whereby a mixed powder for powder metallurgy is formed. The mixed powder for powder metallurgy according to the present invention enables production of sintered bodies having high density as well as superior tensile strength and rotating bending fatigue strength.

摘要翻译： 通过扩散接合将0.05〜1.0质量％的Mo粘附到作为预合金元素的Mn为0.5质量％以下且Mo为0.2〜1.5质量％的铁基粉末的表面，由此合金钢粉末为 形成。 此外，在合金钢粉末中加入0.2〜5质量％的Ni粉末和/或0.2〜3质量％的Cu粉末，形成粉末冶金用混合粉末。 根据本发明的用于粉末冶金的混合粉末能够生产具有高密度以及优异的拉伸强度和旋转弯曲疲劳强度的烧结体。

公开(公告)号：US20060065072A1

公开(公告)日：2006-03-30

申请号：US11230714

申请日：2005-09-20

申请人： Yukiko Ozaki ,  Hiroshi Sugihara ,  Satoshi Uenosono

发明人： Yukiko Ozaki ,  Hiroshi Sugihara ,  Satoshi Uenosono

IPC分类号： C22C1/05

CPC分类号： C22C33/0228 ,  B22F1/0059

摘要： The invention provides an iron-based mixed powder for powder metallurgy enabling the iron-based mixed powder to improve the machinability, without being accompanied by degrading the mechanical property of a sintered body. In order to obtain the purpose of the invention, the iron-based mixed powder comprises a mixture of an iron-based powder, a powder for an alloy, a powder for machinability improvement, while further adding lubricant. And, (1) the powder for machinability improvement comprises a manganese sulfide powder, and at least one selected from the group consisting of a calcium phosphate powder and a hydroxy apatite powder, or, (2) the powder for machinability improvement has an average particle diameter of 1 to 60 micrometers and is at least one selected from the group consisting of manganese sulfide powder and calcium fluoride powder.

摘要翻译： 本发明提供一种用于粉末冶金的铁基混合粉末，使得铁基混合粉末能够提高机械加工性，而不会降低烧结体的机械性能。 为了获得本发明的目的，铁基混合粉末包含铁基粉末，合金粉末，可加工性改进用粉末，同时进一步添加润滑剂的混合物。 另外，（1）可提高切削性的粉末包括硫化锰粉末和选自磷酸钙粉末和羟基磷灰石粉末中的至少一种，或（2）用于机械加工性改善的粉末具有平均粒子 直径为1至60微米，并且是选自硫化锰粉末和氟化钙粉末中的至少一种。

公开(公告)号：US06503445B2

公开(公告)日：2003-01-07

申请号：US09767111

申请日：2001-01-22

申请人： Yukiko Ozaki ,  Satoshi Uenosono ,  Kuniaki Ogura

发明人： Yukiko Ozaki ,  Satoshi Uenosono ,  Kuniaki Ogura

IPC分类号： B22F302

CPC分类号： B22F1/0062 ,  B22F1/0059 ,  B22F1/0077 ,  B22F1/0096 ,  B22F2998/00 ,  C22C33/0207

摘要： A process for producing an iron-based powder composition for powder metallurgy having excellent flowability at room temperature and a warm compaction temperature, having improved compactibility enabling lowering ejection force in compaction, and to provide a process for producing a compact of a high density from the iron-based powder composition, wherein the iron-based powder composition comprises an iron-based powder, a lubricant, and an alloying powder, and at least one of the iron-based powder, the lubricant, and the alloying powder is coated with at least one surface treatment agent selected from the group of surface treatment agents of organoalkoxysilanes, organosilazanes, titanate coupling agents, fluorine-containing silicon silane coupling agents, and wherein the iron-based powder composition is compacted at a temperature not lower than the lowest melting point of the employed lubricants, but not higher than the highest melting point of the employed lubricants.

摘要翻译： 一种粉末冶金用铁基粉末组合物的制造方法，其在室温下具有优异的流动性和温暖的压实温度，具有改善的压实性，从而能够降低压缩时的喷射力，并且提供了一种从 铁基粉末组合物，其中所述铁基粉末组合物包含铁基粉末，润滑剂和合金粉末，并且所述铁基粉末，所述润滑剂和所述合金粉末中的至少一种涂覆有 至少一种选自有机烷氧基硅烷的表面处理剂，有机硅氮烷，钛酸酯偶联剂，含氟硅烷偶联剂的表面处理剂，其中铁基粉末组合物在不低于最低熔点的温度下压实 的使用润滑剂，但不高于所用润滑剂的最高熔点。

公开(公告)号：US06464751B2

公开(公告)日：2002-10-15

申请号：US09897395

申请日：2001-07-03

申请人： Satoshi Uenosono ,  Yukiko Ozaki

发明人： Satoshi Uenosono ,  Yukiko Ozaki

IPC分类号： B22F100

CPC分类号： B22F1/0077 ,  B22F1/0014 ,  B22F1/0059 ,  B22F2001/0066 ,  B22F2998/00 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0207 ,  B22F9/082 ,  B22F1/0003 ,  B22F1/0096 ,  B22F9/22

摘要： An iron-based mixed powder for use in powder metallurgy has an apparent density of at least about 3.1 Mg/m3, is excellent in die filling property and compressibility and without segregation, and includes an iron-based powder to which alloying powder is adhered at the surface by binder and free lubricant. The iron-based powder includes an atomized iron powder, or a mixed powder of an atomized iron powder and a reduced iron powder.

摘要翻译： 用于粉末冶金的铁基混合粉末具有至少约3.1Mg / m 3的表观密度，模具填充性和压缩性优异且无偏析，并且包括在其上附着合金粉末的铁基粉末 表面用粘合剂和游离润滑剂。 铁基粉末包括雾化铁粉或雾化铁粉和还原铁粉的混合粉末。

公开(公告)号：US06355208B1

公开(公告)日：2002-03-12

申请号：US09631033

申请日：2000-08-02

申请人： Shigeru Unami ,  Yukiko Ozaki ,  Satoshi Uenosono

发明人： Shigeru Unami ,  Yukiko Ozaki ,  Satoshi Uenosono

IPC分类号： B22F312

CPC分类号： B22F3/02 ,  B22F2998/00 ,  B22F2999/00 ,  B22F2003/023 ,  B22F2003/145 ,  B22F2003/026 ,  B22F2202/06

摘要： A process for producing a high-density iron-based green compact is provided that can form a green compact with a high density. Also provided is a process for producing a sintered compact from the green compact. A specified combination lubricant is applied to the surface of a die for compacting by electrical charging, wherein the combination lubricant includes a first lubricant having a melting point that is higher than a preset compacting temperature, and a second lubricant having a melting point that is lower than a compacting temperature. A heated iron-based powder mixture is filled into the die, followed by compacting, whereby a green compact is formed. The green compact can be sintered to provide a sintered compact. The powder mixture comprises an iron-based powder, a lubricant and a graphite powder, wherein the lubricant includes a first lubricant having a melting point that is lower than the compacting temperature and in an amount from 10 to 75% by mass, and a second lubricant having a melting point that is higher than the compacting temperature, and the content of the graphite powder is less than 0.5% by mass based on the total amount of the iron-based powder mixture.

摘要翻译： 提供了一种生产高密度铁基生坯的方法，其可以形成高密度的生坯。 还提供了一种用于从压坯生产烧结体的方法。 通过充电将特定的组合润滑剂施加到用于压实的模具的表面上，其中所述组合润滑剂包括具有高于预设压实温度的熔点的第一润滑剂和具有较低熔点的第二润滑剂 比压实温度高。 将加热的铁基粉末混合物填充到模具中，随后压实，由此形成生坯。 可以将生坯压坯烧结成烧结体。 粉末混合物包含铁基粉末，润滑剂和石墨粉末，其中润滑剂包括熔点低于压实温度的第一润滑剂，其量为10〜75质量％，第二润滑剂为 具有高于压实温度的熔点的润滑剂，并且相对于铁基粉末混合物的总量，石墨粉末的含量小于0.5质量％。