Method for electron beam welding
    4.
    发明授权
    Method for electron beam welding 失效
    电子束焊接方法

    公开(公告)号:US4376886A

    公开(公告)日:1983-03-15

    申请号:US222722

    申请日:1981-01-02

    IPC分类号: B23K15/00

    CPC分类号: B23K15/0053

    摘要: This invention concerns a process of welding by an electron beam. The process is one in which the beam is rapidly deflected from point to point of a predetermined matrix of spots over which the beam rests for predetermined lengths of time in order to produce a predetermined distribution of energy over a defined area along the surface of the material being welded along a seam formed at the adjacent edges of workpieces. The length of time the beam is maintained at each position and the total beam power may be varied from spot to spot in order to produce a desired distribution of energy over a given area. This process is useful to avoid defects in partial penetration welds and in the welding of joints in which the gap between the edges to be welded may approach the diameter of the electron beam. The method is also useful in avoiding defects which may normally occur at the beginning and end of a weld seam.

    摘要翻译: 本发明涉及一种通过电子束焊接的方法。 该过程是其中光束从点的预定矩阵的点到点快速偏转,光束在该位置上搁置预定长度的时间,以便在沿着材料表面的限定区域上产生预定的能量分布 沿着形成在工件的相邻边缘处的接缝焊接。 在每个位置处保持光束的时间长度和总光束功率可以从现场改变,以便在给定区域上产生期望的能量分布。 该过程对于避免部分穿透焊缝中的缺陷以及焊接中的待焊接边缘之间的间隙可能接近电子束直径的接头是有用的。 该方法也可用于避免通常在焊缝开始和结束处发生的缺陷。

    High power x-ray welding of metal-matrix composites
    5.
    发明授权
    High power x-ray welding of metal-matrix composites 失效
    金属基复合材料的大功率x射线焊接

    公开(公告)号:US5994660A

    公开(公告)日:1999-11-30

    申请号:US974167

    申请日:1997-11-19

    IPC分类号: B23K28/00

    CPC分类号: B23K28/00

    摘要: A method for joining metal-matrix composites (MMCs) by using high power x-rays as a volumetric heat source is provided. The method involves directing an x-ray to the weld line between two adjacent MMCs materials to create an irradiated region or melt zone. The x-rays have a power density greater than about 10.sup.4 watts/cm.sup.2 and provide the volumetric heat required to join the MMC materials. Importantly, the reinforcing material of the metal-matrix composites remains uniformly distributed in the melt zone, and the strength of the MMCs are not diminished. In an alternate embodiment, high power x-rays are used to provide the volumetric heat required to weld metal elements, including metal elements comprised of metal alloys. In an alternate embodiment, high power x-rays are used to provide the volumetric heat required to weld metal elements, including metal elements comprised of metal alloys.

    摘要翻译: 提供了一种通过使用高功率x射线作为体积热源来连接金属基质复合材料(MMC)的方法。 该方法包括将X射线引导到两个相邻的MMC材料之间的焊接线以产生照射区域或熔融区。 x射线的功率密度大于约104瓦/ cm2,并提供加入MMC材料所需的体积热量。 重要的是,金属基复合材料的增强材料保持均匀分布在熔融区域,并且MMC的强度不会降低。 在替代实施例中,高功率x射线用于提供焊接金属元件所需的体积热量,包括由金属合金组成的金属元件。 在替代实施例中,高功率x射线用于提供焊接金属元件所需的体积热量,包括由金属合金组成的金属元件。

    Air bag having inflation indicator and method of determining proper
spacing between loads supported thereby
    6.
    发明授权
    Air bag having inflation indicator and method of determining proper spacing between loads supported thereby 失效
    具有充气指示器的气囊和确定由此支撑的负载之间的适当间隔的方法

    公开(公告)号:US5678969A

    公开(公告)日:1997-10-21

    申请号:US522691

    申请日:1995-09-01

    IPC分类号: B60P7/135 B60P7/16 B61D45/00

    CPC分类号: B60P7/16 B60P7/135

    摘要: The present invention presents an air bag, and a method of using the same, which has at least one indicator line marking thereon for providing a visual indication of when the air bag is in a properly inflated condition for filling a void between loads, such as cargo or the like, in a truck, airplane, train or the like. Each indicator line includes a center portion which is of a first design, such as being blue-colored, and having easily identifiable ends. Preferably, each indicator line has end portions of a second design, such as being red-colored, which are on opposite sides of the center portion of the line and which are visually distinct from the first design. The center portion of the indicator line has a length which is substantially equal to the maximum thickness of the air bag. The air bag is properly inflated when the end portions of the line are not visible, or the center portion of the line marking is completely visible between the loads and the junctions between the center portion and the end portions of the line marking are just visible between the loads. When inflated to the latter, the air bag is also inflated to its maximum pressure. In a second embodiment, the indicator lines extend vertically from the top seam to the bottom seam of the air bag. The air bag is properly inflated when the inner edges of the lines are visible between the loads.

    摘要翻译: 本发明提出了一种气囊及其使用方法,该方法在其上具有至少一个指示线标记,用于提供当气囊处于适当充气状态时的充气状况的视觉指示,以填充载荷之间的空隙,例如 货物等,在卡车,飞机,火车等中。 每个指示线包括具有第一设计的中心部分,例如是蓝色的,并且具有容易识别的端点。 优选地,每个指示线具有在线的中心部分的相对侧上并且在视觉上与第一设计不同的第二设计的端部,例如是红色的。 指示线的中心部分的长度基本上等于气囊的最大厚度。 当线的端部不可见时,或者线路标记的中心部分在负载之间完全可见并且线路标记的中心部分和端部之间的接合部之间的空气袋恰当地充气,其间可以在 负载。 当充气到后者时,气囊也膨胀到其最大压力。 在第二实施例中,指示线从顶部接缝垂直延伸到气囊的底部接缝。 当线路的内边缘在负载之间可见时,气囊被充分充气。

    Beam position correction device
    7.
    发明授权
    Beam position correction device 失效
    光束位置校正装置

    公开(公告)号:US4721842A

    公开(公告)日:1988-01-26

    申请号:US901947

    申请日:1986-08-29

    IPC分类号: B23K15/00 H01J37/304

    CPC分类号: H01J37/3045 B23K15/0013

    摘要: A method and apparatus for correcting the undeflected resting position of an electron beam which has been displaced from its previous resting position because of physical or positional changes in elements of the electron gun which is generating the electron beam. The electron beam is directed towards a detector which determines the direction and amplitude of the deviation along mutually perpendicular axes of the point of impingement of the electron beam from a given reference point. The signals generated by the detector, in cooperation with a computer-controlled deflection system of the electron gun, cause the beam to be displaced in a series of iterative steps to the reference point. The distance and direction of the beam from its resting position to the reference point is maintained in the memory of the computer.

    摘要翻译: 用于校正电子束的未偏转静止位置的方法和装置,其由于产生电子束的电子枪的元件的物理或位置变化而已经从其先前的静止位置移位。 电子束被引向检测器,该检测器确定沿给定参考点的电子束撞击点的相互垂直轴线的偏差的方向和振幅。 由检测器产生的信号与电子枪的计算机控制的偏转系统配合使得光束以一系列迭代步骤移位到参考点。 将光束从其静止位置到参考点的距离和方向保持在计算机的存储器中。