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    • 91. 发明授权
    • Welding head rail squaring process
    • 焊头平整过程
    • US08487205B2
    • 2013-07-16
    • US12200575
    • 2008-08-28
    • Charles R. BattistiGary Barnhart
    • Charles R. BattistiGary Barnhart
    • B23K11/00B23K9/007B23K1/00B23K37/02B23K9/00B23K9/02
    • B23K9/0008B23K11/0073B23K11/04B23K11/046B23K2101/26
    • An improved method for executing a flash butt weld to join first and second rail segments includes applying a voltage to the first rail segment and the second rail segment to establish a voltage difference between the first and second rail segments. The rail end faces are brought into contact, resulting in an electrical current between the first rail end face and the second rail end face, resistively heating material at the interface. As material burns off at the interface, the power consumed at the rail end interface as a function of rail displacement is periodically sampled. If the comparison indicates that the power per unit of rail displacement is not increasing from sample to sample, the burn-off process is terminated. In a further aspect, if the power per unit of rail displacement exceeds a predetermined threshold, the burn-off process is terminated.
    • 用于执行闪光对接焊接以连接第一和第二轨道段的改进方法包括向第一轨道段和第二轨道段施加电压以建立第一和第二轨道段之间的电压差。 轨道端面接触,导致第一轨道端面和第二轨道端面之间的电流,在接口处电阻地加热材料。 当材料在接口处燃烧时,定期采样作为轨道位移的函数在轨端接口处消耗的功率。 如果比较表明每单位轨道位移的功率没有从样品到样品增加,则停止过程终止。 在另一方面,如果单位轨道位移的功率超过预定阈值,则停止燃烧过程。
    • 93. 发明申请
    • Method and apparatus for welding
    • 焊接方法和设备
    • US20040188405A1
    • 2004-09-30
    • US10404681
    • 2003-03-31
    • Todd E. HolversonJames L. UeckerRobert R. DavidsonRichard M. Hutchison
    • B23K009/09
    • B23K9/0008B23K9/067B23K9/073B23K9/09B23K9/095
    • A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode.
    • 一种用于焊接的方法和装置包括启动脉冲焊接过程包括通过提供CC型焊接电力来启动焊接电弧,通过提供CV型电力来维持电弧。 然后,提供脉冲型焊接电力。 该方法和系统可用于通过提供短路功率或给定模式的焊接功率而不是提供脉冲功率来启动短路或其他焊接过程。 而且,在一个替代方案中,启动脉冲,短路或给定焊接过程的方法和系统包括通过提供CC型焊接功率来起始焊接电弧,至少直到电弧的伪平衡被建立为止。 然后,提供脉冲,短路或给定模式的焊接电源。