Cast iron semi-finished product excellent in workability and method of production of the same
    1.
    发明授权
    Cast iron semi-finished product excellent in workability and method of production of the same 有权
    铸铁半成品优良的加工性和生产方法相同

    公开(公告)号:US08302667B2

    公开(公告)日:2012-11-06

    申请号:US13173154

    申请日:2011-06-30

    IPC分类号: B22D11/10 B22D27/00

    摘要: The present invention provides tough cast iron and cast iron semi-finished products excellent in workability without heat treatment requiring massive heat energy and long time and a method of production enabling these to be efficiently produced, that is, cast iron of ingredients of white cast iron where particles of spheroidal graphite or flattened graphite are dispersed, cast iron where the ingredients of the white cast iron satisfy, by wt %, (% C)≦4.3−(% Si)÷3 and C≧1.7% and where the particles of spheroidal graphite are dispersed at a density of 50 particles/mm2 or more, or cast iron where the particles of flattened graphite have a width of 0.4 mm or less and a length of 50 mm or less.

    摘要翻译: 本发明提供了在不需要大量热能和长时间的热处理的情况下,具有优异的可加工性的铸铁和铸铁半成品,以及能够有效地生产这些材料的生产方法,即白铸铁成分的铸铁 其中分散有球状石墨或扁平石墨的颗粒,其中白铸铁的成分满足重量%(%C)≦̸ 4.3 - (%Si)÷3和C≥1.7%的铸铁,其中颗粒 球状石墨以50个/ mm 2以上的密度分散,或者扁平石墨的粒子的宽度为0.4mm以下,长度为50mm以下的铸铁。

    Surface acoustic wave filter with attenuation poles
    4.
    发明授权
    Surface acoustic wave filter with attenuation poles 失效
    具衰减极的表面声波滤波器

    公开(公告)号:US06960966B2

    公开(公告)日:2005-11-01

    申请号:US10668379

    申请日:2003-09-24

    IPC分类号: H03H9/64

    CPC分类号: H03H9/6433

    摘要: A high-performance SAW filter is to be provided which has lower insertion loss in a pass band and high attenuation in an attenuation band on the low frequency side of the pass band. In a SAW filter with attenuation poles configured of a two-port circuit for filtering for forming a ladder type SAW filter using a SAW resonator and a two-port circuit for impedance formed of an impedance serially connected, the impedance of the two-port circuit for impedance is configured so as to form an attenuation band of a predetermined width having a sufficient attenuation characteristic on the low frequency side of a pass band.

    摘要翻译: 提供一种在通带中具有较低插入损耗的高性能SAW滤波器,并且在通带的低频侧的衰减频带中具有较高的衰减。 在具有由用于形成使用SAW谐振器形成梯形SAW滤波器的二端口电路和由阻抗串联连接的阻抗的双端口电路构成的衰减极的SAW滤波器中,双端口电路的阻抗 阻抗被配置为在通带的低频侧形成具有足够衰减特性的预定宽度的衰减带。

    Single crystal production method
    5.
    发明授权
    Single crystal production method 有权
    单晶生产方法

    公开(公告)号:US06899759B2

    公开(公告)日:2005-05-31

    申请号:US10283683

    申请日:2002-10-30

    摘要: A single crystal production method based on the Czochralski method comprises controlling a number of crucible rotations and crystal rotations so that a number of vibrations for driving a melt, determined on the basis of the number of crucible and crystal rotations during a single crystal growing procedure, is outside a range from 95% to 105% of a number of sloshing resonance vibrations of the melt. In another embodiment, the method comprises controlling a number of rotations of a crystal and crucible, so that when a number of vibrations for driving a melt, determined by the number of crucible and crystal rotations during a single crystal growing procedure, is within a range from 95% to 105% of a number of sloshing resonance vibrations of the melt, the number of vibrations of the melt due to sloshing does not exceed 2000 times during a period when the number of vibrations is within that range.

    摘要翻译: 基于切克劳斯基法的单晶制造方法包括:控制多个坩埚旋转和晶体旋转,使得在单晶生长过程中,基于坩埚的数量和晶体旋转确定的用于驱动熔体的多个振动, 在熔融物的共振振动的数量的95%至105%的范围之外。 在另一个实施例中,该方法包括控制晶体和坩埚的旋转次数,使得当在单晶生长过程期间由坩埚的数量和晶体旋转确定的用于驱动熔体的多个振动在一定范围内 熔体共振振动数量的95%至105%时,在振动次数在该范围内的期间,由于晃动引起的熔体振动次数不超过2000次。

    Surface acoustic wave filter
    6.
    发明授权
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号:US06861925B2

    公开(公告)日:2005-03-01

    申请号:US10273888

    申请日:2002-10-21

    IPC分类号: H03H9/72 H03H9/64 H03H9/73

    CPC分类号: H03H9/6483

    摘要: A surface acoustic wave filter includes an antenna terminal, an antenna, a transmitting filter, a branching line and a receiving filter. The antenna is coupled to the antenna terminal. The transmitting filter is coupled to the antenna terminal. The transmitting filter receives an electrical power. The branching line is coupled to the antenna terminal. The branching line has a first length that is longer than λ/4 length so that the electrical power received by the transmitting filter when the antenna terminal is opened is smaller than when the antenna terminal is terminated, wherein λ is a wave length of a center frequency of transmitted and received bands of the surface acoustic wave filter. The receiving filter is coupled to the branching line.

    摘要翻译: 表面声波滤波器包括天线端子,天线,发射滤波器,分支线路和接收滤波器。 天线耦合到天线终端。 发射滤波器耦合到天线端子。 发射滤波器接收电力。 分支线耦合到天线端子。 分支线具有长于λ/ 4长度的第一长度,使得当天线端子打开时由发射滤波器接收的电力小于天线端子终止时的电力,其中λ是中心的波长 表面声波滤波器的发射和接收频带的频率。 接收滤波器耦合到分支线。

    Method for controlling early casting stage in continuous casting process
    9.
    发明授权
    Method for controlling early casting stage in continuous casting process 失效
    控制连铸过程中早期浇铸阶段的方法

    公开(公告)号:US4771821A

    公开(公告)日:1988-09-20

    申请号:US899483

    申请日:1986-08-22

    IPC分类号: B22D11/16 B22D11/18

    CPC分类号: B22D11/181 B22D11/161

    摘要: A method for controlling an early stage casting in a continuous casting process comprising the steps of commencing to pour molten steel into a mold provided with a dummy bar head through an immersion nozzle provided with a flow rate control device, detecting that a steel level in the mold has reached a predetermined drawing commencement level and commencing drawing of the dummy bar head. A holding time for molten steel in the mold is predetermined, from the commencement of pouring molten steel into the mold to a commencement of the drawing of the dummy bar head, through a solidified shell formation velocity under prevailing operating conditions, and a prediction is made of whether or not, when the steel level has reached the predetermined level, a molten metal holding time substantially equal to the predetermined molten metal holding time can be obtained, and the flow rate of the molten steel is controlled in accordance with the result of the prediction.

    摘要翻译: 一种用于控制连续铸造工艺中的早期铸造的方法,包括以下步骤:通过设有流量控制装置的浸入式喷嘴将钢水倒入设置有虚拟棒头的模具中,检测钢水平 模具已经达到预定的绘图开始水平并开始绘制虚拟棒头。 从浇铸钢水开始到模具开始,通过在主要运行条件下的凝固壳形成速度,模具中的钢水保持时间是预先确定的,并且进行预测 当钢水位达到规定水平时,可以获得基本上等于预定的熔融金属保持时间的熔融金属保持时间,并根据其结果控制钢水的流量 预测。