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    • 6. 发明授权
    • Production of short metal fibers
    • 生产短金属纤维
    • US4640156A
    • 1987-02-03
    • US660559
    • 1984-10-15
    • Takeo NakagawaKiyoshi Suzuki
    • Takeo NakagawaKiyoshi Suzuki
    • B23B25/02B23B29/12B23P17/06B23B1/00B23B37/00
    • B23B25/02B23B29/125B23P17/06Y10T29/143Y10T407/137Y10T407/235Y10T407/24Y10T82/10
    • Short metal fibers are directly produced from a work metal block. The product fibers are very thin and short, e.g., 200 .mu.m in diameter and 20 mm in length to the maximum. A bar like or pillar like metal bar is rotated, to which an elastic cutting tool is contacted. The entering width of cutting edge corresponds to length of fiber to be obtained. The tool is effected with fine feed and at the same time positively generated with self excited vibrations. The self excited vibration forcibly separates and divides a thin layer fiber accumulating at the cutting edge of the tool one by one without having connections in length of the fibers to each other. The process produces needle like fibers of microscopic cross sectional area. The thin and short metal fibers are produced in the same number as number of the self excited vibrations, and the fiber is right angled in axis with the cutting direction.
    • 短金属纤维由工件金属块直接生产。 产品纤维非常薄且短,例如直径为200μm,长度为20mm。 杆状或柱状的金属棒被旋转,弹性切削工具与之接触。 切削刃的进入宽度对应于要获得的纤维的长度。 该工具用精细的进料实现,同时由自激振动积极产生。 自激振动强制地分离和分割在工具的切割边缘处累积的薄层纤维,而不会使纤维的长度彼此连接。 该过程产生具有微观横截面积的针状纤维。 薄金属纤维和短金属纤维的产生与自激振动的数量相同,并且纤维与切割方向成直角。
    • 9. 发明授权
    • Apparatus and method for mirror surface grinding and grinding wheel
therefore
    • 因此,镜面磨削和砂轮的设备和方法
    • US5639363A
    • 1997-06-17
    • US388410
    • 1995-02-14
    • Hitoshi OhmoriTakeo NakagawaKatsuhiko Karikomi
    • Hitoshi OhmoriTakeo NakagawaKatsuhiko Karikomi
    • B24B1/00B24B53/00B24D3/06C25F3/16C25F3/30C25F7/00
    • B24D3/06B24B53/001
    • An apparatus and a method for mirror surface grinding which enables high quality, stable ELID grinding; and a grinding wheel for electrolytic dressing. The apparatus comprises a grinding wheel 3 having a contact surface 2 for contacting a workpiece 1, an electrode 4 facing the surface 2, nozzles 5 for supplying conductive fluid between the grinding wheel 3 and the electrode 4, and a power source 6 and feeder 7 for applying a voltage between the grinding wheel and the electrode 4. The bond material, which is selected from among iron, ferrous metal, cobalt, nickel and combinations of two or more thereof, along with grains and sintering aid are molded together and sintered to obtain the conductive grinding wheel. Next, a conductive water-soluble grinding fluid containing an alkanolamine and anions is supplied between the grinding wheel and the electrode, and a pulse wave voltage is applied between the grinding wheel and the electrode to dress the grinding wheel electrolytically during grinding.
    • 一种用于镜面研磨的设备和方法,可实现高质量,稳定的ELID研磨; 和用于电解敷料的砂轮。 该设备包括具有用于接触工件1的接触表面2,面向表面2的电极4,用于在砂轮3和电极4之间供应导电流体的喷嘴5以及电源6和进料器7的砂轮3 用于在砂轮和电极4之间施加电压。将选自铁,黑色金属,钴,镍及其两种或多种的组合以及颗粒和烧结助剂的粘合材料一起模塑并烧结至 获得导电砂轮。 接下来,在砂轮和电极之间提供含有链烷醇胺和阴离子的导电性水溶性研磨液,并且在研磨轮和电极之间施加脉搏波电压,以在研磨中电解地研磨砂轮。
    • 10. 发明授权
    • Superconductor wire and process for production thereof
    • 超导线及其制造方法
    • US5204315A
    • 1993-04-20
    • US837918
    • 1992-02-20
    • Yoshitaka ItoMasami IshiiTetsuo OkaTakeo NakagawaLihong Zhang
    • Yoshitaka ItoMasami IshiiTetsuo OkaTakeo NakagawaLihong Zhang
    • B21C23/26H01B12/04H01B12/10H01B13/00H01L39/24
    • H01L39/248Y10S505/704Y10S505/74
    • A process for production of superconductor wire having multiple rings, comprising the steps of: preparing a silver mixture comprising a silver or silver-gold alloy mixed with a bonding agent, and a superconductor mixture comprising a superconductor powder with bonding agent; arranging both the silver mixture and the superconductor mixture in a extrusion die; extruding a wire having at least one ring of the superconductor mixture and one ring of the silver mixture in the radial direction; and heating the wire at the sinter temperature of the oxide superconductor so that the bonding agent is removed and the oxide superconductor powder and the silver powder are sintered. A superconductor wire comprising an inner core and an outer ring covering the core, wherein one of the ring on the core comprises a sintered silver powder and the other of the ring on the core comprises a sintered oxide superconductor powder.
    • 一种制造具有多个环的超导线的方法,包括以下步骤:制备包含与粘合剂混合的银或银 - 金合金的银混合物,以及包含超导体粉末与粘合剂的超导体混合物; 将银混合物和超导体混合物布置在挤出模具中; 在径向上挤出具有超导体混合物的至少一个环和银混合物的一个环的导线; 并在氧化物超导体的烧结温度下加热导线,从而去除粘合剂,并烧结氧化物超导体粉末和银粉。 一种超导线,其包括内芯和覆盖芯的外环,其中芯上的环中的一个包括烧结银粉,芯上的另一个环包括烧结氧化物超导体粉末。