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    • 3. 发明申请
    • CUTTING TOOL
    • 切割用具
    • US20130022415A1
    • 2013-01-24
    • US12998888
    • 2010-03-04
    • Jiro OsawaYasuyuki EndohTamotsu Nagai
    • Jiro OsawaYasuyuki EndohTamotsu Nagai
    • B23B27/00B23B51/00B23G5/06B23C5/22
    • B23C5/10B23B31/1107B23B31/1122B23C2210/02B23C2210/03Y10T407/1932
    • To provide a cutting tool in which the amount of waste of a main body unit and a cutting head can be suppressed and oscillation at the time of a cutting process can be suppressed. In a cutting tool 100, a helisert 20 made of steel that is lower in rigidity than cemented carbide is provided between an external screw unit 32 and an internal screw unit 11. Accordingly, the external screw unit 32 and the internal screw unit 11 are prevented from being brought into contact with each other, so that a thread 33 of the external screw unit 32 and a thread 12 of the internal screw unit 11 can be prevented from being damaged. Further, oscillation of a cutting head 30 against the main body unit 10 can be absorbed by providing the helisert 20 between the external screw unit 32 and the internal screw unit 11 because steel is lower in rigidity than cemented carbide.
    • 提供一种可以抑制主体单元和切割头的浪费量并且可以抑制切割时的振动的切削工具。 在切削工具100中,在外螺纹单元32和内螺纹单元11之间设置有刚性低于硬质合金的由钢制成的螺旋20。因此,防止外螺纹单元32和内螺纹单元11 从而可以防止外螺纹单元32的螺纹33和内螺纹单元11的螺纹12的损坏。 此外,由于钢的刚性低于硬质合金,所以可以通过在外螺纹单元32和内螺纹单元11之间设置螺线管20来吸收切割头30抵靠主体单元10的振动。
    • 7. 发明授权
    • Method of operating a blast furnace
    • 操作高炉的方法
    • US4248625A
    • 1981-02-03
    • US63969
    • 1979-08-06
    • Sakae TamuraKyoji OkabeTsuyoshi FukutakeSeiji TaguchiTamotsu NagaiMitsuo SainoTadaaki Iwamura
    • Sakae TamuraKyoji OkabeTsuyoshi FukutakeSeiji TaguchiTamotsu NagaiMitsuo SainoTadaaki Iwamura
    • C21B5/00G05B13/02
    • G05B13/0265C21B5/006
    • A method of operating a blast furnace comprising the steps of selecting sight factors mathematically and statistically as effective in determining the operating condition of a blast furnace, sensing the eight factors as sample data, converting the sample data into variable factors, comparing the sample data and the variable factors with predetermined limiting factors, generating numerical non-dimension values corresponding to the level of satisfaction between the sample date or variable factors and the corresponding limiting values, multiplying the numerical non-dimensional values by predetermined corresponding weight allocation indices, summing separately the results of the multiplication for the sample data and the variable factors to form a numerical factor grand addition output and a variable factors grand addition output, summing the numerical factors grand addition output and the variable factors grand addition output to form an overall grand addition output and taking appropriate action to control the furnace based upon the values of the overall grand addition output, numerical factors and variable factors grand addition outputs and the numerical non-dimensional values.
    • 一种操作高炉的方法,包括以下步骤:数学和统计学上选择视觉因子,以确定高炉的运行状况,感测八个因素作为样本数据,将样本数据转换为可变因子,比较样本数据和 具有预定限制因素的可变因子,产生对应于采样日期或可变因子之间的满意程度的数值非维值与相应的限制值,将数值非维值乘以预定的对应权重分配指数,分别相加 样本数据乘积和可变因子的结果形成数值因子大加法输出和可变因子大加法输出,总和加法输出的数值因子和可变因子大加法输出,形成总体大加法输出, 适当地 基于总体大加法输出值,数值因子和可变因子大加法输出值和数值无量纲值来控制炉的作用。
    • 9. 发明申请
    • Ball endmill
    • 球端铣刀
    • US20070172321A1
    • 2007-07-26
    • US11578750
    • 2005-01-18
    • Tamotsu Nagai
    • Tamotsu Nagai
    • B26D1/12
    • B23C5/1009B23C2210/03B23C2210/0407B23C2210/0485B23C2222/28B23C2226/125B23C2226/315Y10T407/1946
    • A ball endmill includes a cylindrical tool body that is to be rotated about its axis, ball-nosed end cutting edges located in an axially distal end portion of the tool body and describing a semi-spherical-shaped locus during rotation of the tool body, and spiral gashes located in the axially distal end portion of the tool body and defining rake faces of the respective ball-nosed end cutting edges. The tool body is made, at least at its part providing each ball-nosed end cutting edge, of a hard sintered body. Each ball-nosed end cutting edge is inclined with respect to the axis by a helix angle in a range from about 10° to about 30°. The tool body has, in its distal end, a non-gashed central area in which the spiral gashes do not exist. A ratio of a size of the non-gashed central area to a ball nose radius is in a range from about 0.03 to about 0.1.
    • 球头铣刀包括圆筒形工具主体,其围绕其轴线旋转,位于工具主体的轴向远端部分中的球形端切削刃,并且在工具主体旋转期间描述半球形轨迹, 以及位于所述工具主体的轴向远端部分中并且限定相应的球形端切削刃的前刀面的螺旋形气体。 该工具主体至少在其部分上提供硬质烧结体的每个球形端切削刃。 每个球头端切削刃相对于轴线倾斜约10°至约30°的螺旋角。 工具主体在其远端具有不存在螺旋形气体的非气化中心区域。 非气泡中心区域的尺寸与球头半径的比率在约0.03至约0.1的范围内。