Ultrasonic testing device for weld seams in pipes, sheets and containers
    1.
    发明授权
    Ultrasonic testing device for weld seams in pipes, sheets and containers 失效
    超声波检测设备用于管道,床单和容器中的焊缝

    公开(公告)号:US5677490A

    公开(公告)日:1997-10-14

    申请号:US505339

    申请日:1996-08-18

    摘要: The ultrasonic testing device for weld seams (28) in pipes, sheets and containers, preferably for circumferential welds in pipelines, is fitted with two identical test head supports (20), each fitted with at least one test head (e.g., 23), arranged in lateral inversion to the weld seam, which acoustically irradiate from the basic material (30) of the pipes or sheets laterally into the weld seam (28) and are coupled to the surface of the basic material (30) opposite the root (32) of the weld seam (28). Each test head support (20) has a plurality of immersion test heads (22-24) arranged one behind the other or side-by-side transversely to the weld seam (28) in such a way that their acoustic irradiation entry regions into the basic material (30) are as close together as possible and of which a) one immersion test head (22) is directed so that it generated a creeping wave in the basic material (30) on the side of the root (36) of the weld seam (28) which spreads out at the surface and of which b) at least two other immersion test heads (23, 24) irradiate at a flatter angle than the first-mentioned head (22) for longitudinal fault testing, and one of these immersion test heads (23) for longitudinal faults irradiates the weld seam (28) in the region of the root (32).

    摘要翻译: PCT No.PCT / DE94 / 00151 Sec。 371日期1996年2月16日 102(e)日期1996年2月16日PCT提交1994年2月14日PCT公布。 公开号WO94 / 19686 日期1994年9月1日管道,片材和容器中焊缝(28)的超声波检测装置,优选用于管道中的圆周焊缝,配有两个相同的测试头支撑件(20),每个测试头支架均装有至少一个测试头 例如23),其横向反转设置在焊接缝上,该焊缝从管道或片材的基本材料(30)侧向地声学照射到焊缝(28)中并且耦合到基材(30)的表面, 与焊缝(28)的根部(32)相对。 每个测试头支撑件(20)具有多个浸入式测试头(22-24),这些浸入式测试头(22-24)以横向于焊缝(28)的方式并排设置,使得它们的声辐射入口区域进入 基本材料(30)尽可能靠近在一起,并且其中a)一个浸入式测试头(22)被引导为使得其在所述基础材料(30)的根部(36)侧产生蠕变波 焊缝(28),其在表面上展开,其中b)至少两个其它浸没试验头(23,24)以比先前提及的头部(22)更平坦的角度照射用于纵向故障测试,并且 这些用于纵向断层的浸没试验头(23)照射在根部(32)的区域中的焊缝(28)。