城市建筑
城市建築
성시건축
URBANISM AND ARCHITECTURE
2012年
22期
173
,共1页
超声波%薄壁钢管%单晶斜探%双晶斜探头
超聲波%薄壁鋼管%單晶斜探%雙晶斜探頭
초성파%박벽강관%단정사탐%쌍정사탐두
ultrasonic%thin-wal ed steel pipe%monocrystal ine angle probe%double-crystal angle probe
钢管已广泛应用于建筑工程,但因其特殊的焊接结构和不规则的焊缝形状,使得其检测难度越来越高.这里主要针对薄壁管 Y 型节点焊缝进行研究,选择合适的超声波仪器,探头,试块和扫查方式进行探讨.最终通过实验数据的比较得出结论:双晶双斜探头相比单晶斜探头具有灵敏度高、杂波少、盲区小和近场短等优点,检测结果和理论分析相吻合.
鋼管已廣汎應用于建築工程,但因其特殊的銲接結構和不規則的銲縫形狀,使得其檢測難度越來越高.這裏主要針對薄壁管 Y 型節點銲縫進行研究,選擇閤適的超聲波儀器,探頭,試塊和掃查方式進行探討.最終通過實驗數據的比較得齣結論:雙晶雙斜探頭相比單晶斜探頭具有靈敏度高、雜波少、盲區小和近場短等優點,檢測結果和理論分析相吻閤.
강관이엄범응용우건축공정,단인기특수적한접결구화불규칙적한봉형상,사득기검측난도월래월고.저리주요침대박벽관 Y 형절점한봉진행연구,선택합괄적초성파의기,탐두,시괴화소사방식진행탐토.최종통과실험수거적비교득출결론:쌍정쌍사탐두상비단정사탐두구유령민도고、잡파소、맹구소화근장단등우점,검측결과화이론분석상문합.
Steel has been widely used in construction, but bec-ause of its special welding structure and irregular welds shape, which make its detection increasingly difficult. Here mainly aims at the weld joint of Y type thin-wal pipe, ultrasonic instrument, suitable probe, test block and scanning mode were discussed.Final y through the comparison of experimental data of the conclusion: compared with single oblique probe twin double oblique probe has the advantages of high sensitivity, less clut er, smal blind area and near field is shorter, the test results and theoretical analysis coincide.
