超声检测前,探伤仪校准的主要内容是仪器的扫描速度和检测系统的水平线性校准。...
Thursday, September 22, 2022
用X射线透照小径管,DL/T821-2002允许的黑度范围为(),JB/T4730、2-2005允许的黑度范围为()。...
Saturday, September 17, 2022
荧光增感屏和铅箔增感屏相比,荧光增感屏的主要优点是()...
Thursday, September 22, 2022
Thursday, September 15, 2022
直径80mm、长200mm的圆钢棒,轴向通电磁化时,为了使表面磁场强度达到100Oe,所需要的电流值是()...
Wednesday, September 14, 2022
涡流探伤的相似率,指的各种试件探伤结果相似时,必定有相同的()。...
Monday, September 19, 2022
Thursday, September 22, 2022
探测薄壁管时,常采用下列哪种人工反射体来调整灵敏度()...
Wednesday, September 21, 2022
超声波从一种介质进入另一种介质而改变传播方向的现象叫做()...
Thursday, September 22, 2022
Thursday, September 22, 2022
已知入射光强10000cd/m2,则底片黑底为3的区域透过的光强是()cd/m2。...
Wednesday, September 21, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
按GB/T11345-89标准规定:在B级检验、板厚为45mm时,缺陷反射波幅位于Ⅱ区,指示长度为12mm的缺陷,评定为...
Wednesday, September 21, 2022
计算连续X射线谱的最短波长,一般用下列哪一计算式?()(式中:λ0-最短波长[];V-KV)...
Saturday, September 17, 2022
Thursday, September 15, 2022
轴类锻件,一般来说用纵波直探头作轴向探测,检测效果最佳。...
Thursday, September 22, 2022
施加探伤剂时,应注意使渗透剂在工件表面上始终保持湿润状态。...
Wednesday, September 21, 2022
金属凝固过程中,由于内部释放的气体没有逸出而形成的孔洞叫做()。...
Thursday, September 22, 2022