| 换流阀阀塔玻璃钢拉杆的超声检测 |
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| 引用本文： | 李晓红,赵洲峰,高亮,张益成.换流阀阀塔玻璃钢拉杆的超声检测[J].武汉大学学报(工学版),2010,43(6). |
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| 作者姓名： | 李晓红 赵洲峰 高亮 张益成 |
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| 作者单位： | 1. 武汉大学动力与机械学院,湖北,武汉,430072
2. 湖北电力试验研究院,湖北,武汉,430077 |
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| 摘 要： | 测定了阀塔玻璃钢拉杆轴向声学性能,用开发的UT-CAS系统计算了相控阵探头在拉杆内声场分布,以及螺纹与裂纹回波信号随距离的变化关系,设计确定了阀塔玻璃钢拉杆的超声相控阵检测工艺;用该工艺实际检测拉杆模拟裂纹,结果表明:在拉杆的重点检测区域内,深2mm的径向裂纹比同等深度螺纹波高6～13.1dB,能可靠地检出.
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| 关 键 词： | 阀塔拉杆 玻璃钢 超声检测 相控阵 裂纹 |
Ultrasonic testing on fiber glass reinforced rods of converter valve |
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| LI Xiaohong,ZHAO Zhoufeng,GAO Liang,ZHANG Yicheng.Ultrasonic testing on fiber glass reinforced rods of converter valve[J].Engineering Journal of Wuhan University,2010,43(6). |
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| Authors: | LI Xiaohong ZHAO Zhoufeng GAO Liang ZHANG Yicheng |
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| Abstract: | The axial acoustical properties of the fiber glass reinforced plastic(FRP) rods of converter valve are tested.Use UT-CAS to simulate the sound field distribution inside the rods and the flaw echo,which contributes to determine design the ultrasonic phase array testing technology of FRP rods of converter valve.Artificial cracks were tested by this testing technology.The results show that in key test zone,2mm crack echo is 6-13.1 dB higher than thread echo with same depth. |
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| Keywords: | valve rod fiber glass reinforced plastic(FRP) ultrasonic testing phase array crack |
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