公开(公告)号：US20050034788A1

公开(公告)日：2005-02-17

申请号：US10834302

申请日：2004-04-28

申请人： Sang-Myun Kim ,  Dong-Hwan Kim

发明人： Sang-Myun Kim ,  Dong-Hwan Kim

IPC分类号： H01F41/02 ,  H01F1/03

CPC分类号： H01F41/028 ,  Y10T29/49076 ,  Y10T29/49078

摘要： Disclosed is a method of manufacturing a laminated polar anisotropic hybrid magnet, which includes separately mixing first permanent magnet powders having low magnetic properties and second permanent magnet powders having high magnetic properties with a thermoplastic resin to prepare first and second compound pellets, respectively, and firstly injecting the first compound pellets by use of a first injection mold, to prepare a polar anisotropic and anisotropic resin magnet, which is then placed into a second injection mold having an outer diameter lager than that of the first mold, followed by secondly injecting in a magnetic field together with the second compound pellets. The manufacturing method of the current invention is advantageous in terms of exhibition of higher magnetic properties of the laminated polar anisotropic hybrid magnet, and reduction of the use of expensive materials, thus generating economic benefits. Further, a flux density wave of the magnet can be easily controlled on the magnet surface to be suitable for performances and characteristics of the motors, and temperature properties of the magnet can be enhanced. Thereby, the entire manufacturing method can be efficiently carried out, therefore increasing productivity and reliability in practical use thereof.

摘要翻译： 本发明公开了一种层叠极性各向异性混合磁体的制造方法，其特征在于，分别将具有低磁特性的第一永久磁铁粉末和具有高磁性的第二永久磁铁粉末与热塑性树脂分开混合，分别制备第一和第二复合粒料， 通过使用第一注射模具注入第一复合粒料，制备极性各向异性和各向异性树脂磁体，然后将其放入具有比第一模具的外径更大的外径的第二注射模具中，然后第二次注入 磁场与第二复合粒料一起。 本发明的制造方法在层叠极性各向异性混合磁体的较高磁性的展示方面是有利的，并且减少了昂贵材料的使用，从而产生经济效益。 此外，可以容易地将磁体的磁通密度波控制在磁体表面上以适合电动机的性能和特性，并且可以提高磁体的温度特性。 由此，可以有效地进行整个制造方法，从而提高其实际应用中的生产率和可靠性。

公开(公告)号：US07328500B2

公开(公告)日：2008-02-12

申请号：US10834302

申请日：2004-04-28

申请人： Sang-Myun Kim ,  Dong-Hwan Kim

发明人： Sang-Myun Kim ,  Dong-Hwan Kim

IPC分类号： H01F3/08

CPC分类号： H01F41/028 ,  Y10T29/49076 ,  Y10T29/49078

摘要： Disclosed is a method of manufacturing a laminated polar anisotropic hybrid magnet, which includes separately mixing first permanent magnet powders having low magnetic properties and second permanent magnet powders having high magnetic properties with a thermoplastic resin to prepare first and second compound pellets, respectively, and firstly injecting the first compound pellets by use of a first injection mold, to prepare a polar anisotropic and anisotropic resin magnet, which is then placed into a second injection mold having an outer diameter lager than that of the first mold, followed by secondly injecting in a magnetic field together with the second compound pellets. The manufacturing method of the current invention is advantageous in terms of exhibition of higher magnetic properties of the laminated polar anisotropic hybrid magnet, and reduction of the use of expensive materials, thus generating economic benefits. Further, a flux density wave of the magnet can be easily controlled on the magnet surface to be suitable for performances and characteristics of the motors, and temperature properties of the magnet can be enhanced. Thereby, the entire manufacturing method can be efficiently carried out, therefore increasing productivity and reliability in practical use thereof.

摘要翻译： 本发明公开了一种层叠极性各向异性混合磁体的制造方法，其特征在于，分别将具有低磁特性的第一永久磁铁粉末和具有高磁性的第二永久磁铁粉末与热塑性树脂分开混合，分别制备第一和第二复合粒料， 通过使用第一注射模具注入第一复合粒料，制备极性各向异性和各向异性树脂磁体，然后将其放入具有比第一模具的外径更大的外径的第二注射模具中，然后第二次注入 磁场与第二复合粒料一起。 本发明的制造方法在层叠极性各向异性混合磁体的较高磁性的展示方面是有利的，并且减少了昂贵材料的使用，从而产生经济效益。 此外，可以容易地将磁体的磁通密度波控制在磁体表面上以适合电动机的性能和特性，并且可以提高磁体的温度特性。 由此，可以有效地进行整个制造方法，从而提高其实际应用中的生产率和可靠性。

公开(公告)号：US07470309B2

公开(公告)日：2008-12-30

申请号：US11413348

申请日：2006-04-27

申请人： Sang-Myun Kim ,  Hyun-Ho Lee ,  Min-Sun Hur

发明人： Sang-Myun Kim ,  Hyun-Ho Lee ,  Min-Sun Hur

IPC分类号： B22F9/20

CPC分类号： B22F9/20 ,  B22F1/0003 ,  B22F1/0018 ,  B22F2998/10 ,  B82Y30/00 ,  B22F1/0088 ,  B22F2201/03 ,  B22F2201/013 ,  B22F2201/30 ,  B22F9/04 ,  B22F1/0059

摘要： The present invention relates to an economically excellent method for manufacturing ultra fine tungsten carbide-cobalt composite powder having tungsten compound and cobalt compound as its raw material. More particularly, the present invention provides a manufacturing method comprising a process for mixing tungsten compounds, cobalt compounds, grain-grown inhibitor compounds and oxide in a mechanical method, a calcination process for removing ammonia and moisture of the mixed powder and forming it into an composite oxide, a reduction process for manufacturing said calcined powder into pure metal powder, a mixing process for adding carbon source to said reduced powder, and a carburization process for manufacturing the mixed powder into a tungsten carbide-cobalt composite powder, which is the final form. Using the manufacturing method of the present invention, ultra-fine tungsten carbide-cobalt composite powder having an ultra-fine particle size of 0.1˜0.2 μm, 0.2˜0.3 μm,0.3˜0.4 μm and high properties such as high hardness, high toughness wherein the binder phase is uniformly mixed can be manufactured. In particular, a tungsten carbide-cobalt composite powder having economic advantages through price competitiveness of the compound using tungsten compounds and cobalt compounds and simplification of process can be manufactured.

摘要翻译： 本发明涉及一种以钨化合物和钴化合物为原料制造超细碳化钨 - 钴复合粉末的经济优良方法。 更具体地说，本发明提供了一种制造方法，其包括以机械方法混合钨化合物，钴化合物，晶粒生长抑制剂化合物和氧化物的方法，用于除去混合粉末中的氨和水分的煅烧方法，并将其形成为 复合氧化物，将煅烧粉末制成纯金属粉末的还原方法，将碳源添加到所述还原粉末中的混合方法，以及将该混合粉末制造成碳化钨 - 钴复合粉末的渗碳方法，其为最终 形成。 采用本发明的制造方法，超细度的碳化钨 - 钴复合粉末的超细粒度为0.1〜0.2μm，0.2〜0.3μm，0.3〜0.4μm的高硬度，高韧性 可以制造粘合剂相均匀混合的方法。 特别地，可以制造通过使用钨化合物和钴化合物的化合物的价格竞争力具有经济优势并简化工艺的碳化钨 - 钴复合粉末。

公开(公告)号：US20070214911A1

公开(公告)日：2007-09-20

申请号：US11413348

申请日：2006-04-27

申请人： Sang-Myun Kim ,  Hyun-Ho Lee ,  Min-Sun Hur

发明人： Sang-Myun Kim ,  Hyun-Ho Lee ,  Min-Sun Hur

IPC分类号： B22F9/20

CPC分类号： B22F9/20 ,  B22F1/0003 ,  B22F1/0018 ,  B22F2998/10 ,  B82Y30/00 ,  B22F1/0088 ,  B22F2201/03 ,  B22F2201/013 ,  B22F2201/30 ,  B22F9/04 ,  B22F1/0059

摘要： The present invention relates to an economically excellent method for manufacturing ultra fine tungsten carbide-cobalt composite powder having tungsten compound and cobalt compound as its raw material. More particularly, the present invention provides a manufacturing method comprising a process for mixing tungsten compounds, cobalt compounds, grain-grown inhibitor compounds and oxide in a mechanical method, a calcination process for removing ammonia and moisture of the mixed powder and forming it into an composite oxide, a reduction process for manufacturing said calcined powder into pure metal powder, a mixing process for adding carbon source to said reduced powder, and a carburization process for manufacturing the mixed powder into a tungsten carbide-cobalt composite powder, which is the final form. Using the manufacturing method of the present invention, ultra-fine tungsten carbide-cobalt composite powder having an ultra-fine particle size of 0.1˜0.2 μm, 0.2˜0.3 μm, 0.3˜0.4 μm and high properties such as high hardness, high toughness wherein the binder phase is uniformly mixed can be manufactured. In particular, a tungsten carbide-cobalt composite powder having economic advantages through price competitiveness of the compound using tungsten compounds and cobalt compounds and simplification of process can be manufactured.

摘要翻译： 本发明涉及一种以钨化合物和钴化合物为原料制造超细碳化钨 - 钴复合粉末的经济优良方法。 更具体地说，本发明提供了一种制造方法，其包括以机械方法混合钨化合物，钴化合物，晶粒生长抑制剂化合物和氧化物的方法，用于除去混合粉末中的氨和水分的煅烧方法，并将其形成为 复合氧化物，将煅烧粉末制成纯金属粉末的还原方法，将碳源添加到所述还原粉末中的混合方法，以及将该混合粉末制造成碳化钨 - 钴复合粉末的渗碳方法，其为最终 形成。 采用本发明的制造方法，超细度的碳化钨 - 钴复合粉末的超细粒度为0.1〜0.2μm，0.2〜0.3μm，0.3〜0.4μm的高硬度，高韧性 可以制造粘合剂相均匀混合的方法。 特别地，可以制造通过使用钨化合物和钴化合物的化合物的价格竞争力具有经济优势并简化工艺的碳化钨 - 钴复合粉末。

公开(公告)号：US06351052B1

公开(公告)日：2002-02-26

申请号：US09611476

申请日：2000-07-07

申请人： Sang-Myun Kim

发明人： Sang-Myun Kim

IPC分类号： H02K100

CPC分类号： H02K3/04 ,  H02K23/58 ,  Y10T29/49009

摘要： The present invention provides a method of winding an armature coil on a cylindrical resin insulator of coreless motors while improving magnetic flux efficiency of the coil. This method allows a resulting motor to effectively generate desired torque by an application of a low current, thus conserving electricity. This method also simplifies the production process of the coreless motors, thus reducing the production cost of the motor and improving productivity and economical efficiency of the motors. In order to wind an armature coil on an insulator, the coil is repeatedly wound on the insulator, with each turn of the coil linearly extending on the upper surface, vertically extending down on the sidewall and linearly extending on the lower surface prior to vertically extending up on the sidewall of the insulator. In another embodiment, the coil may be repeatedly wound on the insulator in a way such that each turn of the coil extends on the upper surface while passing over the sidewall of an upper center projection of the insulator, vertically extends down on the sidewall and extends on the lower surface while passing over the sidewall of a lower center projection prior to vertically extending up on the sidewall of the insulator.

摘要翻译： 本发明提供了一种将电枢线圈卷绕在无芯电动机的圆柱形树脂绝缘体上同时提高线圈的磁通效率的方法。 该方法允许所得到的电动机通过施加低电流有效地产生期望的扭矩，从而节省电力。 该方法也简化了无芯电机的生产过程，从而降低了电机的生产成本，提高了电机的生产效率和经济性。 为了将电枢线圈缠绕在绝缘体上，线圈被重复缠绕在绝缘体上，线圈的每一圈在上表面上线性延伸，在侧壁上垂直向下延伸并且在垂直延伸之前在下表面上线性延伸 在绝缘体的侧壁上。 在另一个实施例中，线圈可以以这样的方式重复地缠绕在绝缘体上，使得线圈的每一圈在上表面上延伸，同时穿过绝缘体的上中心突起的侧壁，在侧壁上垂直向下延伸并延伸 在垂直向上延伸到绝缘体的侧壁上之前在下表面上经过下中心突起的侧壁。