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    • 7. 发明申请
    • Ferromagnetic amorphous alloy ribbon with reduced surface protrusions, method of casting and application thereof
    • 具有减小的表面突起的铁磁性非晶合金带,铸造方法及其应用
    • US20120062351A1
    • 2012-03-15
    • US12923224
    • 2010-09-09
    • Eric A. TheisenJames PerroziYuichi OgawaYuji MatsumotoDaichi AzumaRyusuke Hasegawa
    • Eric A. TheisenJames PerroziYuichi OgawaYuji MatsumotoDaichi AzumaRyusuke Hasegawa
    • H01F27/25B22D11/00H01F7/06H01F1/01
    • B22D11/0611B22D11/001H01F1/15308H01F1/15333H01F27/25H01F41/0226Y10T29/49071
    • A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5≦a≦83 at. %, 0.5≦b≦6 at. %, 12≦c≦16.5 at. %, 0.01≦d≦1 at. % with a+b+c+d=100 and incidental impurities, the ribbon being cast from a molten state of the alloy with a molten alloy surface tension of greater than or equal to 1.1 N/m on a chill body surface; the ribbon having a ribbon length, a ribbon thickness, and a ribbon surface facing the chill body surface; the ribbon having ribbon surface protrusions being formed on the ribbon surface facing the chill body surface; the ribbon surface protrusions being measured in terms of a protrusion height and a number of protrusions; the protrusion height exceeding 3 μm and less than four times the ribbon thickness, and the number of protrusions being less than 10 within 1.5 m of the cast ribbon length; and the alloy ribbon in its annealed straight strip form having a saturation magnetic induction exceeding 1.60 T and exhibiting a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level in its annealed straight strip form. The ribbon is suitable for transformer cores, rotational machines, electrical chokes, magnetic sensors, and pulse power devices.
    • 铁磁非晶合金带包括具有由FeaSibBcCd表示的组成的合金,其中80.5< 1; a≦̸ 83 at。 %,0.5≦̸ b≦̸ 6 at。 %,12≦̸ c≦̸ 16.5 at。 %,0.01≦̸ d≦̸ 1 at。 %+ a + b + c + d = 100和偶然的杂质,该带从合金的熔融状态浇铸,熔融合金的表面张力大于或等于1.1N / m; 所述带具有带长度,带厚度和面向所述冷却体表面的带状表面; 所述带状带表面突起形成在所述带状表面上面向所述冷却体表面; 根据突出高度和突出数量来测量带状表面突起; 突出高度超过3μm且小于带厚度的四倍,并且在铸带长度的1.5μm内的突起数量小于10; 并且其退火的直条形状的合金带形状具有超过1.60T的饱和磁感应,并且在其退火的直条形式下以60Hz和1.3T的感应电平测量时,磁芯损耗小于0.14W / kg。 该带适用于变压器铁芯,旋转机,电扼流圈,磁传感器和脉冲功率器件。
    • 8. 发明申请
    • Ferromagnetic amorphous alloy ribbon and fabrication thereof
    • 铁磁非晶合金带及其制造
    • US20120049992A1
    • 2012-03-01
    • US12923076
    • 2010-08-31
    • Daichi AzumaRyusuke HasegawaYuichi OgawaEric A. TheisenYuji Matsumoto
    • Daichi AzumaRyusuke HasegawaYuichi OgawaEric A. TheisenYuji Matsumoto
    • H01F27/25B22D11/00H01F1/153
    • B22D11/0611H01F1/15308H01F1/15333H01F27/25H01F41/0226
    • A ferromagnetic amorphous alloy ribbon includes an alloy having a composition represented by FeaSibBcCd where 80.5≦a≦83 at. %, 0.5≦b≦6 at. %, 12≦c≦16.5 at. %, 0.01≦d≦1 at. % with a+b+c+d=100 and incidental impurities; the ribbon being cast from a molten state of the alloy, with a molten alloy surface tension of greater than or equal to 1.1 N/m; the defect length along a direction of the ribbon's length being between 5 mm and 200 mm, the defect depth being less than 0.4×t μm and the defect occurrence frequency being less than 0.05×w times within 1.5 m of ribbon length, where t is the ribbon thickness and w is the ribbon width, and the ribbon having a saturation magnetic induction exceeding 1.60 T and exhibiting a magnetic core loss of less than 0.14 W/kg when measured at 60 Hz and at 1.3 T induction level in an annealed straight strip form, and a core magnetic loss of less than 0.3 W/kg and an exciting power of less than 0.4 VA/kg in an annealed wound transformer core form. The ribbon is suitable for use in transformer cores, rotational machines, electrical chokes, magnetic sensors and pulse power devices.
    • 铁磁非晶合金带包括具有由FeaSibBcCd表示的组成的合金,其中80.5< 1; a≦̸ 83 at。 %,0.5≦̸ b≦̸ 6 at。 %,12≦̸ c≦̸ 16.5 at。 %,0.01≦̸ d≦̸ 1 at。 %+ a + b + c + d = 100和杂质; 该钢带从合金的熔融状态铸造,熔融合金表面张力大于或等于1.1N / m; 沿着带长度的方向的缺陷长度在5mm和200mm之间,缺陷深度小于0.4×tμm,缺陷发生频率在丝带长度的1.5μm内小于0.05×w倍,其中t是 带状厚度和w是带宽,并且具有超过1.60T的饱和磁感应的带,并且在退火的直条中以60Hz和1.3T的感应水平测量时,磁芯损耗小于0.14W / kg 形式,并且在退火的卷绕变压器铁芯形式中的小于0.3W / kg的磁芯损耗和小于0.4VA / kg的激励功率。 该带适用于变压器铁芯,旋转机,电扼流圈,磁传感器和脉冲功率器件。
    • 10. 发明授权
    • Group communication method, communication device and management device
    • 组通信方式,通信设备和管理设备
    • US08050209B2
    • 2011-11-01
    • US11329483
    • 2006-01-10
    • Yuji Matsumoto
    • Yuji Matsumoto
    • H04H20/71
    • H04L41/0893H04L12/185H04L63/065
    • A group communication method capable of performing group communication without additional functions provided on a network and with preventing excessive network traffic. Each communication device first transmits an enrollment message. A providing device groups the communication devices, creates a group key specifying the communication devices that are identified as a same subgroup, and transmits the group key to the communication devices. The communication devices receive and store the group key. To transmit distribution data to a subgroup, the providing device transmits the data together with data corresponding to the group key to a selected communication device of the subgroup. When the communication devices recognize the distribution data, the communication devices determine whether to receive the distribution data, based on the distribution data and the stored group key.
    • 一种群组通信方法,能够进行群组通信,而无需在网络上提供的附加功能并防止过多的网络流量。 每个通信设备首先发送注册消息。 提供设备对通信设备进行分组,创建指定被识别为相同子组的通信设备的组密钥,并将组密钥发送到通信设备。 通信设备接收并存储组密钥。 为了将分发数据发送到子组,提供设备将数据与对应于组密钥的数据一起发送到所选择的子组的通信设备。 当通信设备识别分发数据时,通信设备基于分发数据和存储的组密钥来确定是否接收分发数据。