公开(公告)号：US11648611B2

公开(公告)日：2023-05-16

申请号：US16641920

申请日：2018-09-20

申请人： Diamet Corporation

发明人： Yoshinari Ishii ,  Tsuneo Maruyama

IPC分类号： B22F5/00 ,  B22F3/10 ,  C22C1/04 ,  C22C33/02 ,  C22C38/16 ,  C22C38/00 ,  B22F1/052

CPC分类号： B22F3/1035 ,  B22F5/00 ,  C22C1/0475 ,  C22C33/0278 ,  C22C38/16 ,  B22F1/052 ,  B22F2005/004 ,  C22C38/008

摘要： Provided is a novel sintered oil-impregnated bearing superior in wear resistance and cost performance under a severe use condition where the bearing collides with a shaft due to a high load and vibration, such as a condition associated with an output shaft of an electric motor installed in a vehicle and a wiper motor installed therein. The sintered oil-impregnated bearing contains: 15 to 30% by mass of Cu; 1 to 4% by mass of C; and a remainder consisting of Fe and inevitable impurities, in which a metal structure with copper being melted therein is provided at least on a bearing surface; pearlite or a pearlite with ferrite being partially scattered therein is provided in a matrix; a copper-rich phase arranged in a mesh-like manner is also provided in the matrix; and a free graphite is dispersed and distributed in the matrix as well.

公开(公告)号：US20220001446A1

公开(公告)日：2022-01-06

申请号：US17432782

申请日：2020-02-21

申请人： DIAMET CORPORATION

发明人： Tsuneo Maruyama ,  Shinichi Takezoe ,  Hideo Sakai

IPC分类号： B22F5/10 ,  F16C17/02 ,  F16C33/14 ,  B22F7/08

摘要： A sintered component forming step is for forming a sintered component by powder molding. An insert forming step is for forming a sintered insert component in which an exterior component is integrated on an outer peripheral portion of the sintered component. One or more grooves or ridges are formed on an outer peripheral portion of a region except for one end portion of the sintered component in the sintered component forming step. The insert forming step includes a step for bringing the outer peripheral portion of the end portion into contact with an inner peripheral surface of an insert forming mold along a circumferential direction and covering the one or more grooves or ridges by the insert forming mold with an interval to form a cavity on an outer peripheral portion of the sintered component and a step for filling a melted material in the cavity.

公开(公告)号：US20210131494A1

公开(公告)日：2021-05-06

申请号：US16492520

申请日：2018-06-28

申请人： DIAMET CORPORATION

发明人： Tsuneo MARUYAMA ,  Yoshinari ISHII

IPC分类号： F16C33/12 ,  B22F5/10 ,  C22C9/06 ,  C22C1/04 ,  F16C17/02

摘要： Provided is a bearing for a motor-type fuel injection pump. This bearing is composed of a Cu—Ni-based sintered alloy, inexpensive and has a superior corrosion resistance and abrasion resistance. The bearing contains 10 to 20% by mass of Ni, 2 to 4.5% by mass of Sn, 0.05 to 0.4% by mass of P, 2 to 7% by mass of C, and a remainder consisting of Cu and inevitable impurities. The bearing has a metal structure where Sn is uniformly dispersed and distributed in a metal matrix, and has a porosity of 7 to 17% where a free graphite is dispersed and distributed in pores.

公开(公告)号：US20200180032A1

公开(公告)日：2020-06-11

申请号：US16641920

申请日：2018-09-20

申请人： Diamet Corporation

发明人： Yoshinari ISHII ,  Tsuneo MARUYAMA

IPC分类号： B22F5/00 ,  C22C1/04 ,  C22C38/16 ,  C22C33/02

摘要： Provided is a novel sintered oil-impregnated bearing superior in wear resistance and cost performance under a severe use condition where the bearing collides with a shaft due to a high load and vibration, such as a condition associated with an output shaft of an electric motor installed in a vehicle and a wiper motor installed therein. The sintered oil-impregnated bearing contains: 15 to 30% by mass of Cu; 1 to 4% by mass of C; and a remainder consisting of Fe and inevitable impurities, in which a metal structure with copper being melted therein is provided at least on a bearing surface; pearlite or a pearlite with ferrite being partially scattered therein is provided in a matrix; a copper-rich phase arranged in a mesh-like manner is also provided in the matrix; and a free graphite is dispersed and distributed in the matrix as well.

公开(公告)号：US20200016662A1

公开(公告)日：2020-01-16

申请号：US16335532

申请日：2017-10-26

申请人： Diamet Corporation

发明人： Yoshiki TAMURA ,  Shinichi TAKEZOE

IPC分类号： B22F5/10 ,  F16C17/02 ,  F16C33/10 ,  F16C33/12

摘要： An oil-impregnated sintered bearing in which a Fe—Cu-based sintered body is impregnated with a lubricant and which has a bearing hole that is configured to support a rotary shaft inserted therethrough, in which an inner circumferential surface of the bearing hole includes at least a first region including a central portion in a shaft direction and a second region forming a portion from a first end portion of the first region to a first opening of the bearing hole, and, in a friction surface of the second region, an area of a Fe phase is larger and an area of a Cu phase formed of Cu powder including Cu-based flat raw material powder is smaller than those in a friction surface of the first region.

公开(公告)号：US10018196B2

公开(公告)日：2018-07-10

申请号：US15106090

申请日：2015-01-07

申请人： Diamet Corporation

发明人： Naotaka Honda

IPC分类号： F04C2/08 ,  F04C2/10 ,  F04C15/00 ,  F04C18/10

CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/10 ,  F04C15/0073 ,  F04C15/0076 ,  F04C18/10 ,  F04C2230/10 ,  F04C2240/20

摘要： A novel rotating body, its material, and manufacturing method thereof, shortening a distance for cutting a bore surface in its axial direction, reducing processing costs, enabling lower-cost manufacture of inner rotor. A metallic rotating body 11 has a bore surface 12 for press-fitting a shaft thereinto, including a cutting-processed portion 13 at first end and an unprocessed portion 14 at second end. The processed portion 13 has an inner diameter formed smaller than the unprocessed portion 14. A chamfer 15 at first end of the bore surface 12 is cut, while a chamfer 6 at the second end not. A bore surface 2 of material 1 processed into the rotating body 11 includes a small-diameter portion 3 at first end and a large-diameter portion 4 at second end. A step 5 is formed between the small- and large-diameter portions 3, 4, with the chamfer 6 formed at second end.

公开(公告)号：US20170002809A1

公开(公告)日：2017-01-05

申请号：US15106090

申请日：2014-01-07

申请人： Diamet Corporation

发明人： Naotaka HONDA

IPC分类号： F04C2/10 ,  F04C18/10

CPC分类号： F04C2/102 ,  F04C2/084 ,  F04C2/10 ,  F04C15/0073 ,  F04C15/0076 ,  F04C18/10 ,  F04C2230/10 ,  F04C2240/20

摘要： A novel rotating body, its material, and manufacturing method thereof, shortening a distance for cutting a bore surface in its axial direction, reducing processing costs, enabling lower-cost manufacture of inner rotor. A metallic rotating body 11 has a bore surface 12 for press-fitting a shaft thereinto, including a cutting-processed portion 13 at first end and an unprocessed portion 14 at second end. The processed portion 13 has an inner diameter formed smaller than the unprocessed portion 14. A chamfer 15 at first end of the bore surface 12 is cut, while a chamfer 6 at the second end not. A bore surface 2 of material 1 processed into the rotating body 11 includes a small-diameter portion 3 at first end and a large-diameter portion 4 at second end. A step 5 is formed between the small- and large-diameter portions 3, 4, with the chamfer 6 formed at second end.

摘要翻译： 一种新颖的旋转体及其材料及其制造方法，缩短了在轴向上切割孔表面的距离，降低了加工成本，能够实现内转子的低成本制造。 金属旋转体11具有用于将轴压入其中的孔表面12，包括在第一端处的切割处理部分13和在第二端处的未处理部分14。 处理部分13具有比未加工部分14小的内径。在孔表面12的第一端处的倒角15被切割，而在第二端处的倒角6不被切割。 加工成旋转体11的材料1的孔表面2包括第一端的小直径部分3和第二端部的大直径部分4。 在小直径部分3,4和大直径部分4之间形成有台阶5，倒角6形成在第二端。

公开(公告)号：US09269481B2

公开(公告)日：2016-02-23

申请号：US11814603

申请日：2005-11-02

申请人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

发明人： Muneaki Watanabe ,  Ryoji Nakayama ,  Gakuji Uozumi

IPC分类号： B32B5/16 ,  B32B15/00 ,  H01F1/33 ,  B22F1/02 ,  C22C33/02 ,  H01F1/147 ,  H01F1/24 ,  H02K1/02

CPC分类号： H01F1/33 ,  B22F1/02 ,  B22F2998/00 ,  C22C33/0207 ,  H01F1/14766 ,  H01F1/24 ,  H02K1/02 ,  Y10T428/2991 ,  Y10T428/2993 ,  Y10T428/32 ,  B22F2207/07

摘要： Oxide-coated Fe powder for producing various electromagnetic circuit components requiring high resistivity is provided. The oxide-coated Fe powder is a Mg-containing oxide film-coated iron powder coated with an Mg—Fe—O ternary-based deposition film at least containing (Mg, Fe)O. The (Mg,Fe)O is a crystalline MgO-dissolving wustite. The Mg—Fe—O ternary-based oxide deposition film has a sulfur-enriched layer containing a higher concentration of sulfur than that of central portion of the iron powder, fine crystalline texture having a grain size of 200 nm or less, and the outermost surface is substantially composed of MgO. A composite soft magnetic material using the Mg-containing oxide film-coated iron powder is also provided.

摘要翻译： 提供了用于生产需要高电阻率的各种电磁电路部件的氧化物涂覆的Fe粉末。 氧化物被覆的Fe粉末是含有至少含有（Mg，Fe）O的Mg-Fe-O三元系沉积膜的含Mg氧化物膜被覆铁粉末。 （Mg，Fe）O是结晶的MgO溶解的方钨矿。 Mg-Fe-O三元基氧化物沉积膜具有含有比铁粉中心部分更高浓度的硫的富集层，具有200nm以下的粒径的微细晶体结构， 表面基本上由MgO构成。 还提供了使用含Mg氧化物膜的铁粉的复合软磁性材料。

公开(公告)号：US08999232B2

公开(公告)日：2015-04-07

申请号：US13876084

申请日：2011-11-07

申请人： Yoshinari Ishii ,  Tsuneo Maruyama ,  Yoshiki Tamura

发明人： Yoshinari Ishii ,  Tsuneo Maruyama ,  Yoshiki Tamura

IPC分类号： C22C9/02 ,  C22C9/06 ,  C22C1/04 ,  F04D29/02 ,  F04D29/046 ,  C22C19/03 ,  F16C33/12 ,  F04D5/00 ,  F04D29/047

CPC分类号： C22C9/06 ,  C22C1/02 ,  C22C1/0425 ,  C22C9/02 ,  C22C19/03 ,  F04D5/002 ,  F04D29/026 ,  F04D29/046 ,  F04D29/047 ,  F05D2230/22 ,  F05D2300/1723 ,  F16C33/128 ,  F16C33/145 ,  F16C2204/10

摘要： There is provided a bearing for motor-powered fuel injection pumps, made from Cu—Ni-based sintered alloy, which is able to be obtained at a low cost, having excellent corrosion and abrasion resistances. The bearing contains 10 to 20% by mass of Ni, 5 to 13% by mass of Sn, 0.1 to 0.8% by mass of P, 1 to 6% by mass of C, and a remainder containing Cu and inevitable impurities, and is formed with a Ni—Sn—Cu—P phase containing at least 30% by mass of Sn in a grain boundary, and has a 8 to 18% porosity. The Ni—Sn—Cu—P phase contains 30 to 49% by mass of Ni, 10 to 30% by mass of Cu, 0.5 to 1.5% by mass of P, and a remainder containing Sn and inevitable impurities.

摘要翻译： 提供了一种由Cu-Ni系烧结合金制成的电动燃油喷射泵的轴承，其能够以低成本获得，具有优异的耐腐蚀和耐磨性。 该轴承含有10〜20质量％的Ni，5〜13质量％的Sn，0.1〜0.8质量％的P，1〜6质量％的C，剩余部分含有Cu和不可避免的杂质，并且 由在晶界中含有至少30质量％的Sn的Ni-Sn-Cu-P相形成，并且具有8〜18％的孔隙率。 Ni-Sn-Cu-P相含有30〜49质量％的Ni，10〜30质量％的Cu，0.5〜1.5质量％的P，余量含有Sn和不可避免的杂质。

公开(公告)号：US20130298730A1

公开(公告)日：2013-11-14

申请号：US13979988

申请日：2012-02-22

申请人： Hiroaki Ikeda ,  Hiroshi Tanaka ,  Kazunori Igarashi

发明人： Hiroaki Ikeda ,  Hiroshi Tanaka ,  Kazunori Igarashi

IPC分类号： H01F1/24 ,  H01F41/02

CPC分类号： H01F1/24 ,  B22F1/02 ,  B22F1/025 ,  B22F3/16 ,  B22F3/24 ,  B22F2998/10 ,  B22F2999/00 ,  C22C33/0214 ,  C22C33/0278 ,  C22C38/02 ,  C22C2202/02 ,  H01F1/26 ,  H01F1/33 ,  H01F3/08 ,  H01F27/255 ,  H01F41/0246 ,  B22F3/02 ,  B22F2003/248 ,  B22F2201/02 ,  B22F2201/20

摘要： A composite soft magnetic material having low magnetostriction and high magnetic flux density contains: pure iron-based composite soft magnetic powder particles that are subjected to an insulating treatment by a Mg-containing insulating film or a phosphate film; and Fe—Si alloy powder particles including 11%-16% by mass of Si. A ratio of an amount of the Fe—Si alloy powder particles to a total amount is in a range of 10%-60% by mass. A method for producing the composite soft magnetic material comprises the steps of: mixing a pure iron-based composite soft magnetic powder, and the Fe—Si alloy powder in such a manner that a ratio of the Fe—Si alloy powder to a total amount is in a range of 10%-60%; subjecting a resultant mixture to compression molding; and subjecting a resultant molded body to a baking treatment in a non-oxidizing atmosphere.

摘要翻译： 具有低磁致伸缩性和高磁通密度的复合软磁材料包含：通过含Mg绝缘膜或磷酸盐膜进行绝缘处理的纯铁类复合软磁性粉末颗粒; 和包含11质量％-16质量％的Si的Fe-Si合金粉末颗粒。 Fe-Si合金粉末颗粒的总量与总量的比例为10质量％〜60质量％。 复合软磁材料的制造方法包括以下步骤：将纯铁类复合软磁粉末与Fe-Si合金粉末混合，使Fe-Si合金粉末与总量 在10％-60％的范围内; 对所得混合物进行压塑; 并在非氧化气氛中对所得成型体进行烘烤处理。