论文部分内容阅读
通过几何作图的方法并从声学原理的角度讨论在对高频焊直缝纲管的焊缝进行超声横波探伤时，应该注意选择适当晶片尺寸的问题。指出在管直径较小时使用较大尺寸的晶片会在工件上产生表面波及其他波型的干扰，从而影响纯横波探伤时对焊缝缺陷的正确判断，给出了品片尺寸与管半径的关系供选择探头时参考。并对于其他同类型的管材横波探伤也有参考意义。
Through the method of geometric drawing and discussion from the principle of acoustics, we should pay attention to the problem of selecting the appropriate wafer size when conducting ultrasonic transverse wave inspection on the weld of the straight seam welded joints of high frequency welding. It is pointed out that when the tube diameter is small, the use of larger size wafers will cause surface wave and other wave modes to interfere with the workpiece, which will affect the correct judgment of weld defects in pure transverse wave inspection. The relationship between the size and the tube radius For the choice of the probe reference. And for other similar types of pipe transverse wave testing is also of reference.