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    • 71. 发明申请
    • METHOD AND APPARATUS FOR MONITORING WELD QUALITY
    • 用于监测焊接质量的方法和装置
    • WO01032346A1
    • 2001-05-10
    • PCT/US2000/027882
    • 2000-10-10
    • B23K31/00B23K9/095
    • B23K9/0953B23K9/0956B23K31/125
    • A method and apparatus for monitoring quality of a weld bead during a welding process utilizing an electronic controller (34) is disclosed. The method and apparatus includes determining an average power spectral density value for a first welding parameter signal between a first predetermined frequency and a second predetermined frequency, determining an average power spectral density value for a second welding parameter signal between a first predetermined frequency and a second predetermined frequency, and comparing the average power spectral density value for the second welding parameter signal with the average power spectral density value for the first welding parameter signal and terminating the welding process if the average power spectral density value for the first welding parameter signal exceeds the average power spectral density value for the second welding parameter signal.
    • 公开了一种在利用电子控制器(34)的焊接过程中监测焊道质量的方法和装置。 所述方法和装置包括确定第一预定频率和第二预定频率之间的第一焊接参数信号的平均功率谱密度值,确定第一预定频率和第二预定频率之间的第二焊接参数信号的平均功率谱密度值 将第二焊接参数信号的平均功率谱密度值与第一焊接参数信号的平均功率谱密度值进行比较,并且如果第一焊接参数信号的平均功率谱密度值超过 第二焊接参数信号的平均功率谱密度值。
    • 72. 发明申请
    • METHOD OF HOT-ROLLING METAL PIECES
    • 热轧金属板的方法
    • WO01019543A1
    • 2001-03-22
    • PCT/JP1999/005043
    • 1999-09-16
    • B21B1/26B21B1/28B21B15/00B21B37/26B21B39/12B21B39/14B21B45/00B23K20/00B23K20/02B23K31/00
    • B21B1/26B21B1/28B21B15/0007B21B15/0085B21B37/26B21B39/12B21B45/00B21B2015/0014B21B2201/08B21B2201/10
    • A hot rolling method which, even if an abnormality occurs before, during or after the joining of metal pieces, does not need to stop the operation of the line. The method is such that if, at the inlet side of a finish rolling machine (26), the leading end of a following metal piece is to be joined to the trailing end (10B) of a preceding metal piece so as to be subjected to finish hot rolling continuously with the preceding metal piece (10), it is decided whether or not endless rolling is possible before and after joining and if it is found impossible, joining is suspended and the following metal piece (12) is stopped so that after the trailing end (10B) of the preceding metal piece has passed through the finish rolling machine (26), the following metal piece (12) is retransferred and finish-rolled with a setting for batch rolling, and if an abnormality occurs in the joined portion after the joining, the joined portion (11) is cut off between the joining device and the finish rolling machine (26), and the material to be rolled is fed into the finish rolling machine with a setting for batch rolling.
    • 即使在金属片接合之前,期间或之后发生异常的热轧方法也不需要停止线的动作。 该方法是,如果在精轧机(26)的入口侧,将下一金属片的前端接合到前一金属片的后端(10B),以便经受 用前述金属片(10)连续进行热轧,判定接合前后是否能进行无端卷绕,如果发现不可能,则停止接合,并且停止下一个金属片(12),使得在 前一金属片的后端(10B)已经通过精轧机(26),随后的金属片(12)以分批轧制的设定进行再次精轧,如果在连接件 在接合装置和精轧机(26)之间切断接合部分(11),并将待轧制的材料以批量轧制的方式供给到精轧机中。