Powdered lubricant composition for hot working and method for manufacturing seamless tubes
    32.
    发明授权
    Powdered lubricant composition for hot working and method for manufacturing seamless tubes 有权
    用于热加工的粉末润滑剂组合物和用于制造无缝管的方法

    公开(公告)号:US07919439B2

    公开(公告)日:2011-04-05

    申请号:US11798950

    申请日:2007-05-18

    摘要: With a powdered lubricant composition by the invention, in addition to the blending of one of anhydrous, pentahydrate or decahydrate salt in sodium borate and one of sodium or calcium salt of fat acid, mixing calcium or lithium carbonate as an auxiliary lubricant can prevent sodium borate (Na2B4O7), solidified as amorphous after a tube-making process, from moisture absorbance, drying and crystallization to thereby suppress the formation of Na2B4O7.5H2O on inside surfaces of finished-product tubes, thus enabling to circumvent occurrence of the white scales. Concurrently, they provide good diffusivity toward the working surface of workpiece, thus enabling to prolong a life of the mandrel bar and to widely be adopted as the most suitable powdered lubricant for manufacturing seamless tubes by Mandrel Mill rolling.

    摘要翻译: 通过本发明的粉末状润滑剂组合物,除了在硼酸钠和脂肪酸的钠盐或钙盐之一中的无水五水合物或十水合物盐之一的混合之外,混合碳酸钙或碳酸锂作为辅助润滑剂可以防止硼酸钠 (Na2B4O7),在制管过程中固化为无定形,从吸湿度,干燥和结晶,从而抑制成品管内表面上形成Na 2 B 4 O 7·5H 2 O,从而能够绕过白色鳞片的发生。 同时,它们对工件的工作表面提供良好的扩散性,从而能够延长芯棒的使用寿命,并被广泛地用作通过心轴轧机轧制制造无缝管的最合适的粉末润滑剂。

    Control of a light source providing excitation light
    33.
    发明授权
    Control of a light source providing excitation light 有权
    控制提供激发光的光源

    公开(公告)号:US07911685B2

    公开(公告)日:2011-03-22

    申请号:US11945566

    申请日:2007-11-27

    IPC分类号: H01S4/00 H04B10/17

    CPC分类号: H04B10/2931

    摘要: A controller monitors output level variation rate of excitation light outputted by a light source in accordance with a drive current of the light source and provided to a rare-earth doped amplifying medium so that a signal light is amplified as the signal light travels through the amplifying medium. In an embodiment, the controller decreases the drive current when the monitored output level variation rate is larger than a threshold value, to thereby reduce power level of the outputted excitation light and thereby delay progress of degradation of the light source indicated by the monitored output level variation rate being larger than the threshold value.

    摘要翻译: 控制器根据光源的驱动电流来监视由光源输出的激发光的输出电平变化率,并提供给稀土掺杂的放大介质,使得当信号光通过放大电路时,信号光被放大 中。 在一个实施例中,当监视的输出电平变化率大于阈值时,控制器降低驱动电流,从而降低输出的激发光的功率电平,从而延迟由监视的输出电平指示的光源的劣化进展 变化率大于阈值。

    Flaw detection apparatus and method for tubes
    36.
    发明申请
    Flaw detection apparatus and method for tubes 有权
    缺陷检测装置及方法

    公开(公告)号:US20080216537A1

    公开(公告)日:2008-09-11

    申请号:US12068044

    申请日:2008-02-01

    申请人: Kenichi Sasaki

    发明人: Kenichi Sasaki

    IPC分类号: B21B38/04 B21B37/18

    摘要: A flaw detection apparatus and flaw detection method for automatically detecting the occurrence of a flaw in a mother tube manufactured by rolling a hollow shell using a mandrel mill are provided.A flaw detection apparatus 100 according to the present invention includes a wall thickness gauge 1 which is installed on the exit side of a mandrel mill M and which measures the tube wall thickness in each of the reducing directions of a hollow shell P in the #1-#5 stands of the mandrel mill, rolling load measuring devices 2 which measure the rolling load in the #1-#5 stands, and a decision unit 3 which determines whether there are flaws in the mother tube based on the measured value of the tube wall thickness in each of the reducing directions of the hollow shell P and the measured value of the rolling load in each stand. The decision unit 3 determines that a flaw has occurred in the mother tube when the measured value of the tube wall thickness in any of the reducing direction in the #1-#5 stands locally varies by at least a predetermined amount and the measured value of the rolling load in any of the #1-#5 stands locally varies by at least a predetermined amount.

    摘要翻译: 提供了一种用于自动检测通过使用芯棒式无缝管轧机轧制中空壳而制造的母管中的缺陷的发生的缺陷检测装置和缺陷检测方法。 根据本发明的探伤装置100包括安装在芯棒式无缝管轧机M的出口侧的壁厚计1,其测量#1中的中空壳P的每个还原方向的管壁厚度 - #5#机架,第1〜5号机架的滚动负荷测定装置2以及决定单元3,该判断单元3根据测定的母体管的测定值,判断母管是否存在缺陷 中空壳体P的各个还原方向的管壁厚度和各支架的轧制负荷的测定值。 当#1-#5中的任一方向的管壁厚度的测量值局部地变化至少预定量时,判定单元3确定在母管中发生了缺陷,并且测量值 #1#5站中的任一个中的轧制负荷在本地变化至少预定量。

    INFRARED SIGNAL RECEIVER, LIQUID CRYSTAL DISPLAY AND OPTICAL ELEMENT
    37.
    发明申请
    INFRARED SIGNAL RECEIVER, LIQUID CRYSTAL DISPLAY AND OPTICAL ELEMENT 失效
    红外信号接收器,液晶显示器和光学元件

    公开(公告)号:US20080165310A1

    公开(公告)日:2008-07-10

    申请号:US11769446

    申请日:2007-06-27

    IPC分类号: H04B10/06 G02F1/133

    CPC分类号: H04B10/1141

    摘要: There is provided an infrared signal receiver which includes a photo-detector unit receiving light in a predetermined infrared wavelength region, sent from a remote operating unit; and an optical element disposed in front of the photo-detector unit, allowing the light of the predetermined infrared wavelength region to transmit therethrough in preference to other infrared wavelength region. In the receiver, the predetermined signal wavelength region is a region of 930 nm or longer and 960 nm or shorter, and mean transmittance of light of the optical element in the predetermined signal wavelength region is larger than mean transmittance of light in a region of 900 nm or longer and shorter than 930 nm, and/or, mean transmittance of light in a region of longer than 960 nm and 1,020 nm or shorter.

    摘要翻译: 提供了一种红外线信号接收器,其包括从远程操作单元发送的接收预定红外波长区域的光的光电检测器单元; 以及设置在光检测器单元前面的光学元件,其允许预定的红外波长区域的光优先于其它红外波长区域透射。 在接收机中,预定信号波长区域是930nm以上且960nm以下的区域,光学元件在预定信号波长区域中的光的平均透射率大于900nm区域的光的平均透射率 nm以上且小于930nm,和/或在960nm以上且1020nm以下的区域中的光的平均透射率。

    Method of manufacturing a seamless steel tube
    38.
    发明申请
    Method of manufacturing a seamless steel tube 审中-公开
    制造无缝钢管的方法

    公开(公告)号:US20080047317A1

    公开(公告)日:2008-02-28

    申请号:US11889609

    申请日:2007-08-15

    申请人: Kenichi Sasaki

    发明人: Kenichi Sasaki

    IPC分类号: B21B17/04

    摘要: A seamless steel tube is manufactured from a high alloy steel containing at least 5% of Cr while effectively preventing mandrel bar withdrawal troubles after elongation rolling of a material being rolled. A seamless steel tube of a high alloy steel containing at least 5% of Cr is manufactured by subjecting a material being rolled 3 to elongation rolling using a retained mandrel mill 1 in which the speed of a mandrel bar 2 in the axial direction is maintained constant while the speed of movement Vb of the mandrel bar 2, the speed Vi of the material being rolled 3 on the inlet side of the retained mandrel mill 1, and the speed Ve of the material being rolled 3 on the exit side of the retained mandrel mill 1 satisfy the relationship: 0.15 ≦Vb/{Vi+Ve)/2}≦0.70 by controlling the speed of movement Vb of the mandrel bar 2.

    摘要翻译: 无缝钢管由含有至少5%Cr的高合金钢制造,同时有效地防止在轧制材料的延伸轧制之后的芯棒退出问题。 含有至少5%Cr的高合金钢的无缝钢管是通过使用保持的芯棒式无缝管1连续轧制轧制的材料3进行伸长轧制而制造的,其中芯棒2的轴向速度保持恒定 而芯棒2的运动速度Vb,被保持的芯棒式无缝管轧机1的入口侧的被轧制材料3的速度Vi和被轧制材料3的速度Ve在保持的芯轴的出口侧 轧机1通过控制芯棒2的移动速度Vb满足关系:0.15 <= Vb / {Vi + Ve)/ 2} <= 0.70。

    Method of manufacturing a seamless pipe
    40.
    发明申请
    Method of manufacturing a seamless pipe 有权
    制造无缝管的方法

    公开(公告)号:US20060059969A1

    公开(公告)日:2006-03-23

    申请号:US11232853

    申请日:2005-09-23

    IPC分类号: B21B13/12

    摘要: When manufacturing a seamless pipe by carrying out elongation rolling and sizing on a mother tube for forming a seamless pipe, the occurrence of portions of thickness variation in the seamless pipe is suppressed by previously identifying the portions of wall thickness variation where the thickness varies in the circumferential direction of the seamless pipe, and carrying out elongation rolling so that the thickness of the portions of the mother tube corresponding to the portions of wall thickness variation of the seamless pipe are different in thickness at the completion of elongation rolling from that of other portions of the mother tube. As a result, local variations in wall thickness in the circumferential direction of a seamless pipe are prevented.

    摘要翻译: 通过在用于形成无缝管的母管上进行伸长率轧制和上浆而制造无缝管时,通过预先识别厚度变化部分的厚度变化的部分在无缝管中的发生被抑制, 无缝管的圆周方向,并进行伸长轧制,使得与无缝管的壁厚变化部分相对应的母管部分的厚度在延伸轧制完成时的厚度与其它部分的厚度不同 的母管。 结果,防止无缝管的圆周方向的壁厚的局部变化。