摘要
超声检测在焊缝缺陷检测中具有非常广泛的应用,能够依托于反馈波形与能量消耗大小等判定缺陷位置、大小以及类型等,依照超声检测工作原理、波形、探头数量以及人工干预程度等进行分类,可以将超声检测划分为多种类型。起重机属于特种设备中的一种,其焊缝质量直接关系到结构的稳定性与安全性,加强起重机T型焊缝缺陷检测十分有必要。起重机T型焊缝缺陷主要表现为根部位置未融合与未焊透缺陷、坡口位置焊趾裂纹与坡口未融合缺陷、焊缝中间位置夹渣与气孔缺陷,根据焊接板厚度,合理选取探头K值,结合纵波探伤法与横波探伤法,实现对T型焊缝的全面探测。
Ultrasonic testing has a very wide range of applications in weld defect detection.It can rely on feedback waveforms and energy consumption to determine the location,size and type of defects,and classify them according to the working principle of ultrasonic testing,waveform,number of probes,and degree of manual intervention.,ultrasonic testing can be divided into several types.Crane is one of the special equipment,and its weld quality is directly related to the stability and safety of the structure.It is necessary to strengthen the detection of crane T-weld defects.Crane T-shaped weld defects are mainly manifested as unfusion and incomplete penetration defects at the root position,weld toe cracks and groove unfusion defects at the groove position,and slag inclusion and porosity defects at the middle of the weld.According to the thickness of the welded plate,the probe should be selected reasonably The K value,combined with the longitudinal wave flaw detection method and the transverse wave flaw detection method,realizes the comprehensive detection of the Tshaped weld.
作者
李建梅
LI Jian-mei(HezeProduct Inspection and Testing Research Institute,Heze 274000,China)
出处
《内燃机与配件》
2022年第6期118-120,共3页
Internal Combustion Engine & Parts
