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    • 3. 发明授权
    • Method and apparatus for producing metal blanks, in particular steel
slabs, which at least in a predetermined surface area have
substantially no defects
    • 至少在预定表面积中基本上没有缺陷的用于生产金属坯料,特别是钢坯的方法和设备
    • US4138277A
    • 1979-02-06
    • US677078
    • 1976-04-15
    • Per-Olle Karlsson
    • Per-Olle Karlsson
    • B24B27/033B23D36/00B23K7/06G01N27/20G01N27/90
    • G01N27/9093
    • Method and apparatus for producing metal blanks, in particular steel slabs, which at least in a predetermined surface area have substantially no defects such as cracks, seams, bubbles, scabs, or the like, at least the surface portion to be made free of defects being systematically and substantially completely scanned by means of at least one inspecting device which detects such defects at and closely beneath the surface as regards location and depth and a working means being controlled by means of the recorded defects, which by scarfing, grinding, milling, planing and/or another cutting machine and/or local material melt deposition and/or material replacement or the like removes the defects detected, the defects being recorded with their depth for surface sub-areas whose width transversely of the working means is sustantially equal or less than the smallest working width of the working means and the working depth of the working means being controlled in accordance with the maximum defect depth recorded for the particular surface sub-area to be worked, wherein defects which occur within a surface sub-areas in a defect accumulation exceeding a predetermined defect minimum number and/or defects having a longitudinal extent whose direction deviates appreciably from the rolling direction are especially marked and/or taken into account with a weight changed with respect to a single defect in the determination of the maximum defect depth.
    • 至少在预定表面积中至少具有缺陷,例如裂纹,接缝,气泡,疤痕等的金属坯料,特别是钢板坯的制造方法和装置,至少要形成缺陷的表面部分 通过至少一个检查装置系统地和基本上完全地扫描,该检查装置在位置和深度方面检测和紧密地在表面下方的这种缺陷,并且通过记录的缺陷来控制工作装置,其通过烧结,研磨,铣削, 刨削和/或另一种切割机和/或局部材料熔体沉积和/或材料替换等去除所检测的缺陷,其工作装置横向宽度的表面子区域的深度被记录的缺陷维持在相等或 小于工作装置的最小工作宽度,并且工作装置的工作深度根据最大失败进行控制 记录特定表面子区域的ct深度,其中在超过预定缺陷最小数量的缺陷累积的表面子区域内发生的缺陷和/或具有方向从滚动方向明显偏离的纵向范围的缺陷 在确定最大缺陷深度时相对于单个缺陷改变的重量被特别标记和/或考虑。
    • 4. 发明授权
    • Apparatus for testing metal blanks utilizing at least one inspecting
head moved along the surface thereof
    • 用于利用沿其表面移动的至少一个检查头测试金属坯料的装置
    • US4041379A
    • 1977-08-09
    • US591938
    • 1975-06-30
    • Per-Olle Karlsson
    • Per-Olle Karlsson
    • G01N19/08G01N27/87G01N27/90G01R33/12
    • G01N27/9093
    • Apparatus for non-destructive testing of metal blanks, in particular steel slabs, flat steel, billets or blooms, for defects such as cracks, seams, cavities, bubbles or the like disposed at or near the surface comprising one or more inspecting heads movable relatively to the surface of the test objects and provided with inspecting means for detecting such defects, said inspecting heads being held by means of pressure and tension members which are carried by a common support arm and transmit the pressure and tension forces substantially separately from each other so as to be individually movable up and down perpendicularly to the slab surface and constrained to move in the travelling direction in engagement with the slab surface.
    • 用于金属坯料,特别是钢板,扁钢,坯料或花纹的非破坏性测试的装置,用于设置在表面或附近的缺陷,例如裂缝,接缝,空腔,气泡等,包括可相对移动的一个或多个检查头 检测对象的表面并具有用于检测这些缺陷的检查装置,所述检查头通过压力和张力构件保持,所述压力和张力构件由共同的支撑臂承载并且将压力和张力基本上彼此分开地传递到 可以单独地上下垂直于板坯表面移动,并被限制为在与板坯表面接合的行进方向上移动。