公开(公告)号：US5182474A

公开(公告)日：1993-01-26

申请号：US675168

申请日：1991-03-26

申请人： Yuji Kaneko

发明人： Yuji Kaneko

IPC分类号： B23H1/02

CPC分类号： B23H1/022

摘要： This invention provides a ROM (10) which stores circuit function definition data for defining specified logic circuits relating to electric discharge machining and a programmable IC (20) which defines a specified logic circuit according to the circuit function definition data. This configuration is cost effective and minimizes hardware space requirements compared with configurations which used different logic circuits combined together. Further, when hardware needs to be reconfigured, the change can be achieved easily by replacing ROM (10) only.

摘要翻译： 本发明提供了一种ROM（10），其存储用于定义与放电加工相关的指定逻辑电路的电路功能定义数据和根据电路功能定义数据定义指定逻辑电路的可编程IC（20）。 与使用不同逻辑电路组合在一起的配置相比，该配置具有成本效益并最大限度地减少了硬件空间需求。 此外，当需要重新配置硬件时，只需更换ROM（10）即可轻松实现更改。

公开(公告)号：US09514870B2

公开(公告)日：2016-12-06

申请号：US13978788

申请日：2012-02-13

申请人： Yuji Kaneko ,  Hisaaki Takao ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

发明人： Yuji Kaneko ,  Hisaaki Takao ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

IPC分类号： C23C10/28 ,  C23C10/06 ,  H01F1/08 ,  H01F41/02 ,  C22C38/00 ,  C22C38/10 ,  C22C38/16 ,  C22C1/00 ,  B22F3/10 ,  H01F41/00 ,  B22F3/24 ,  C22C1/02 ,  H01F1/057

CPC分类号： H01F1/086 ,  B22F3/1007 ,  B22F3/24 ,  B22F2003/241 ,  B22F2203/11 ,  B22F2207/01 ,  C22C1/00 ,  C22C1/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/005 ,  H01F41/0266 ,  H01F41/0293

摘要： A rare earth magnet production method of the present invention includes a placing step of placing a magnet material including a compact or a sintered body of powder particles having a rare earth magnet alloy, and a diffusing material containing a diffusing element to improve coercivity, in a vicinity of each other; and a diffusing step of diffusing the diffusing element into an inside of the magnet material by exposing the magnet material heated to vapor of the diffusing element evaporated from the diffusing material heated; and wherein the diffusing step is a step of heating the diffusing material independently of the magnet material to diffusing material temperature which is different from heating temperature of the magnet material called magnet material temperature.

摘要翻译： 本发明的稀土类磁体制造方法包括：放置步骤，放置包括具有稀土类磁体合金的粉末颗粒的致密体或烧结体的磁体材料和包含扩散元件的扩散材料以提高矫顽力， 相邻; 以及扩散步骤，通过使被加热的扩散材料蒸发的扩散元件被加热至蒸汽的磁体材料暴露而将漫射元件扩散到磁体材料的内部; 并且其中所述漫射步骤是独立于所述磁体材料加热所述漫射材料以扩散材料温度的步骤，所述扩散材料温度不同于称为磁体材料温度的所述磁体材料的加热温度。

公开(公告)号：US20130335180A1

公开(公告)日：2013-12-19

申请号：US14000537

申请日：2012-03-08

申请人： Yuji Kaneko ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

发明人： Yuji Kaneko ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

IPC分类号： H01F7/02 ,  H01F41/02

CPC分类号： H01F7/02 ,  B22F3/24 ,  B22F2003/241 ,  B22F2003/248 ,  C23C10/28 ,  H01F1/0577 ,  H01F41/0293

摘要： A process for producing a rare earth magnet comprises: an adhesion step of causing a diffusion element capable of diffusing inwardly to adhere to the surface part of a magnet material comprising a compact or sintered body of rare earth alloy particles; and an evaporation step of heating the magnet material in vacuum to evaporate at least a portion of the diffusion element having been retained on or in the surface part of the magnet material.

摘要翻译： 稀土类磁体的制造方法包括：使能够向内扩散的扩散元件附着在包含稀土类合金粒子的致密体或烧结体的磁体材料的表面部分的粘合工序; 以及蒸发步骤，在真空中加热所述磁体材料，以蒸发所述扩散元件的至少一部分已被保留在所述磁体材料的表面部分或其表面部分中。

公开(公告)号：US20130315775A1

公开(公告)日：2013-11-28

申请号：US13978788

申请日：2012-02-13

申请人： Yuji Kaneko ,  Hisaaki Takao ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

发明人： Yuji Kaneko ,  Hisaaki Takao ,  Yukio Takada ,  Motoki Hiraoka ,  Keiu Kanada

IPC分类号： H01F1/08 ,  H01F41/02 ,  H01F41/00

CPC分类号： H01F1/086 ,  B22F3/1007 ,  B22F3/24 ,  B22F2003/241 ,  B22F2203/11 ,  B22F2207/01 ,  C22C1/00 ,  C22C1/02 ,  C22C38/002 ,  C22C38/005 ,  C22C38/10 ,  C22C38/16 ,  C22C2202/02 ,  H01F1/0577 ,  H01F41/005 ,  H01F41/0266 ,  H01F41/0293

摘要： A rare earth magnet production method of the present invention includes a placing step of placing a magnet material including a compact or a sintered body of powder particles having a rare earth magnet alloy, and a diffusing material containing a diffusing element to improve coercivity, in a vicinity of each other; and a diffusing step of diffusing the diffusing element into an inside of the magnet material by exposing the magnet material heated to vapor of the diffusing element evaporated from the diffusing material heated; and wherein the diffusing step is a step of heating the diffusing material independently of the magnet material to diffusing material temperature which is different from heating temperature of the magnet material called magnet material temperature.

摘要翻译： 本发明的稀土类磁体制造方法包括：放置步骤，放置包括具有稀土类磁体合金的粉末颗粒的致密体或烧结体的磁体材料和包含扩散元件的扩散材料以提高矫顽力， 相邻; 以及扩散步骤，通过使被加热的扩散材料蒸发的扩散元件被加热至蒸汽的磁体材料暴露而将漫射元件扩散到磁体材料的内部; 并且其中所述漫射步骤是独立于所述磁体材料加热所述漫射材料以扩散材料温度的步骤，所述扩散材料温度不同于称为磁体材料温度的所述磁体材料的加热温度。

公开(公告)号：US08222557B2

公开(公告)日：2012-07-17

申请号：US12532115

申请日：2008-03-24

申请人： Yuji Kaneko ,  Takenori Harada

发明人： Yuji Kaneko ,  Takenori Harada

IPC分类号： B23H1/00

CPC分类号： B23H1/022

摘要： An electric discharge machining apparatus having a gate signal generator for generating a gate signal, a power source for applying a voltage across a work gap formed between a tool electrode and a workpiece, a gap voltage detector for detecting a gap voltage of the work gap, an electric discharge detector for supplying an electric discharge detection signal representing electric discharge to the gate signal generator. The electric discharge detector includes a counter for generating a sample clock having a frequency greater than the frequency of the gate signal, and a comparator for receiving the gap voltage and determining that a fall in the gap voltage is larger than a specified voltage difference in each sample clock. The electric discharge detection signal is generated in response to an output signal of the comparator.

摘要翻译： 一种放电加工装置，具有用于产生栅极信号的栅极信号发生器，用于在形成在工具电极和工件之间的工作间隙上施加电压的电源，用于检测工作间隙的间隙电压的间隙电压检测器， 放电检测器，用于将表示放电的放电检测信号提供给门信号发生器。 放电检测器包括：计数器，用于产生具有大于门信号频率的频率的采样时钟;以及比较器，用于接收间隙电压并确定间隙电压的下降大于每个中的指定电压差 抽样时钟。 响应于比较器的输出信号产生放电检测信号。

公开(公告)号：US20120114515A1

公开(公告)日：2012-05-10

申请号：US13384901

申请日：2010-09-10

申请人： Yuji Kaneko ,  Yukio Takada

发明人： Yuji Kaneko ,  Yukio Takada

IPC分类号： H01F1/01 ,  B22F3/12

CPC分类号： B22F1/0088 ,  B22F3/24 ,  C22C33/0278 ,  H01F1/0577 ,  H01F41/0246 ,  H01F41/0293

摘要： A method for producing a rare earth magnet material which allows efficient Dy or the like diffusion into an inside thereof. This method includes a preparation step of preparing a powder mixture of magnet powder including one or more rare earth elements including neodymium, boron, and the remainder being iron; and neodymium fluoride powder; a heating step of heating a compact of the powder mixture and causing oxygen around magnet powder particles to react with the fluoride powder, thereby obtaining a lump rare earth magnet material in which neodymium oxyfluoride is wholly distributed. The fluoride powder traps oxygen enclosed in the powder mixture and fixes the oxygen as stable NdOF. When Dy is diffused into this rare earth magnet material, Dy smoothly enters into its inside without being oxidized at grain boundaries. Consequently, coercivity of the entire rare earth magnet material can be efficiently increased without wasting scarce Dy.

摘要翻译： 一种稀土类磁铁材料的制造方法，其特征在于，能够有效地将Dy等扩散到内部。 该方法包括制备包括一种或多种稀土元素的磁粉的粉末混合物的制备步骤，所述稀土元素包括钕，硼，其余为铁; 和氟化钕粉末; 加热粉末混合物的粉末并使磁体粉末颗粒周围的氧与氟化物粉末反应的加热步骤，从而获得其中全氟分布有氟化钕的块状稀土磁体材料。 氟化物粉末将氧气封闭在粉末混合物中并固定氧气作为稳定的NdOF。 当Dy扩散到这种稀土磁体材料中时，Dy平滑地进入其内部而不在晶界处被氧化。 因此，可以有效地提高整个稀土磁体材料的矫顽力，而不会浪费稀少的Dy。

公开(公告)号：US07867343B2

公开(公告)日：2011-01-11

申请号：US11819196

申请日：2007-06-26

申请人： Hiroyuki Tomizawa ,  Yuji Kaneko

发明人： Hiroyuki Tomizawa ,  Yuji Kaneko

IPC分类号： H01F1/057

CPC分类号： C22C28/00 ,  C22C38/002 ,  C22C38/005 ,  C22C38/06 ,  C22C38/10 ,  C22C45/02 ,  H01F1/0571 ,  H01F1/0573 ,  H01F1/0577 ,  H01F1/058 ,  H01F1/059

摘要： In a rare earth magnet, an added heavy rare earth element RH such as Dy is effectively used without any waste, so as to effectively improve the coercive force. First, a molten alloy of a material alloy for an R-T-Q rare earth magnet (R is a rare earth element, T is a transition metal element, and Q is at least one element selected from the group consisting of B, C, N, Al, Si, and P), the rare earth element R containing at least one kind of element RL selected from the group consisting of Nd and Pr and at least one kind of element RH selected from the group consisting of Dy Tb, and Ho is prepared. The molten alloy is quenched, so as to produce a solidified alloy. Thereafter, a thermal treatment in which the rapidly solidified alloy is held in a temperature range of 400° C. or higher and lower than 800° C. for a period of not shorter than 5 minutes nor longer than 12 hours is performed. By the thermal treatment, the element RH can be moved from the grain boundary phase to the main phase, so that the coercive force is increased.

摘要翻译： 在稀土类磁铁中，可以有效地使用Dy等添加的重稀土元素RH，而不会有任何浪费，有效地提高矫顽力。 首先，用于RTQ稀土类磁铁的材料合金的熔融合金（R是稀土元素，T是过渡金属元素，Q是选自B，C，N，Al中的至少一种元素 ，Si和P），制备含有选自Nd和Pr中的至少一种元素RL的稀土元素R和选自Dy Tb和Ho的至少一种元素RH， 。 熔融合金淬火，以产生固化合金。 此后，进行快速凝固的合金在400℃以上且低于800℃的温度范围内进行5分钟以上12小时以下的热处理。 通过热处理，元件RH可以从晶界相移动到主相，从而增强矫顽力。

公开(公告)号：US20100090708A1

公开(公告)日：2010-04-15

申请号：US12532115

申请日：2008-03-24

申请人： Yuji Kaneko ,  Takenori Harada

发明人： Yuji Kaneko ,  Takenori Harada

IPC分类号： H01H31/12 ,  B23H1/02

CPC分类号： B23H1/022

摘要： An electric discharge machining apparatus having a gate signal generator for generating a gate signal, a power source for applying a voltage across a work gap formed between a tool electrode and a workpiece, a gap voltage detector for detecting a gap voltage of the work gap, an electric discharge detector for supplying an electric discharge detection signal representing electric discharge to the gate signal generator. The electric discharge detector includes a counter for generating a sample clock having a frequency greater than the frequency of the gate signal, and a comparator for receiving the gap voltage and determining that a fall in the gap voltage is larger than a specified voltage difference in each sample clock. The electric discharge detection signal is generated in response to an output signal of the comparator.

摘要翻译： 一种放电加工装置，具有用于产生栅极信号的栅极信号发生器，用于在形成在工具电极和工件之间的工作间隙上施加电压的电源，用于检测工作间隙的间隙电压的间隙电压检测器， 放电检测器，用于将表示放电的放电检测信号提供给门信号发生器。 放电检测器包括：计数器，用于产生具有大于门信号频率的频率的采样时钟;以及比较器，用于接收间隙电压并确定间隙电压的下降大于每个中的指定电压差 抽样时钟。 响应于比较器的输出信号产生放电检测信号。

公开(公告)号：US20080251159A1

公开(公告)日：2008-10-16

申请号：US10597853

申请日：2005-04-27

申请人： Tomoori Odaka ,  Yuji Kaneko

发明人： Tomoori Odaka ,  Yuji Kaneko

IPC分类号： C22F1/16 ,  C22F3/00

CPC分类号： B22F9/023 ,  B22F9/002 ,  B22F2003/1032 ,  B22F2998/10 ,  B22F2999/00 ,  C21D1/19 ,  C22C1/0441 ,  C22C1/0491 ,  C22C33/0278 ,  C22C38/005 ,  H01F1/0577 ,  H01F1/058 ,  H01F1/059 ,  H01F41/0266 ,  B22F9/04 ,  B22F3/02 ,  B22F3/1035 ,  B22F2203/11

摘要： A method of making a material alloy for an R-T-Q based rare-earth magnet according to the present invention includes the steps of: preparing a melt of an R-T-Q based rare-earth alloy, where R is rare-earth elements, T is a transition metal element, Q is at least one element selected from the group consisting of B, C, N, Al, Si and P, and the rare-earth elements R include at least one element RL selected from the group consisting of Nd, Pr, Y, La, Ce, Pr, Sm, Eu, Gd, Er, Tm, Yb and Lu and at least one element RH selected from the group consisting of Dy, Tb and Ho; cooling the melt of the alloy to a temperature of 700° C. to 1,000° C. as first cooling process, thereby making a solidified alloy; maintaining the solidified alloy at a temperature within the range of 700° C. to 900° C. for 15 seconds to 600 seconds; and cooling the solidified alloy to a temperature of 400° C. or less as a second cooling process.

摘要翻译： 根据本发明的制备用于RTQ基稀土磁体的材料合金的方法包括以下步骤：制备RTQ基稀土合金的熔体，其中R是稀土元素，T是过渡金属 元素，Q是选自B，C，N，Al，Si和P中的至少一种元素，稀土元素R包括至少一种选自以下的元素R L 由Nd，Pr，Y，La，Ce，Pr，Sm，Eu，Gd，Er，Tm，Yb和Lu组成的组和至少一种选自Dy， Tb和Ho; 将合金熔体冷却至700〜1000℃的温度作为第一冷却工序，由此形成固化合金; 将固化合金保持在700℃至900℃的温度范围内15秒至600秒; 并将固化的合金冷却至400℃以下的温度作为第二冷却工序。

公开(公告)号：US07390369B2

公开(公告)日：2008-06-24

申请号：US10553968

申请日：2004-04-21

申请人： Tomoori Odaka ,  Yuji Kaneko

发明人： Tomoori Odaka ,  Yuji Kaneko

IPC分类号： H01F1/057

CPC分类号： B22F1/0003 ,  B22F2999/00 ,  H01F1/0577 ,  H01F41/0266 ,  B22F9/008

摘要： An inventive method of making a rare-earth alloy powder is used to produce a rare-earth sintered magnet, whose main phase has a composition R2T14A (where R is one of the rare-earth elements including Y; T is Fe with or without a non-Fe transition metal; and A is boron with or without carbon). The method includes the steps of: preparing a first rare-earth rapidly solidified alloy, having a columnar texture with an average dendritic width within a first range, by subjecting a melt of a first rare-earth alloy with a first composition to a rapid cooling process; preparing a second rare-earth rapidly solidified alloy, having a columnar texture with an average dendritic width smaller than that of the first rare-earth rapidly solidified alloy and falling within a second range, by subjecting a melt of a second rare-earth alloy with a second composition to the rapid cooling process; making a first rare-earth alloy powder by pulverizing the first solidified alloy; making a second rare-earth alloy powder by pulverizing the second solidified alloy; and making a powder blend including the first and second rare-earth alloy powders.

摘要翻译： 使用制造稀土合金粉末的本发明的方法来制造稀土烧结磁体，其主相具有组成R 2 T 14 N（其中R 是包括Y的稀土元素之一; T是具有或不具有非Fe过渡金属的Fe; A是具有或不具有碳的硼）。 该方法包括以下步骤：通过使具有第一组分的第一稀土合金的熔体经受快速冷却而制备具有平均树枝状宽度在第一范围内的柱状织构的第一稀土快速凝固合金 处理; 制备第二稀土类快速凝固合金，其具有平均树枝状宽度小于第一稀土快速凝固合金的柱状结构并落在第二范围内，通过将第二稀土合金的熔体与 第二组合物用于快速冷却过程; 通过粉碎第一固化合金制备第一稀土合金粉末; 通过粉碎第二固化合金制备第二稀土合金粉末; 并制备包括第一和第二稀土合金粉末的粉末混合物。