钢焊缝的超声波检测_PPT资料.ppt

钢焊缝的超声波检测_PPT资料.ppt

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钢焊缝的超声波检测LiuLiuJianJianPingPing目录ContentsSAW（CJP）缺陷形成机理、倾向性、规律性2其它焊接方法缺陷形成机理、倾向性3焊缝裂纹形成的原因、倾向性、规律性4焊缝超声波检测必须重视的几个问题5焊缝横波超声波检测定位原理及基本公式6焊缝的相关知识1目录Contents超声仪时间轴线的调整及其方法8距离-波幅曲线的绘制9检测面10波程位置的准确标记11距离-波幅曲线灵敏度的调整12焊缝检测准备工作7目录Contents管座角焊缝、角钢和T型焊缝横、纵波UT14分割式探头在焊缝检测中的试验15对接焊缝横波检测的定量16焊缝横波超声波检测缺陷形状的推断17焊缝超声波检测记录和等级分类18对接焊缝的超声波检测13目录Contents对接焊缝超声波检测真伪缺陷回波的识别20报告的签发、缺陷返修、报告管理21焊缝超声波检测的质量评级19一、关于焊缝的有关知识为使检测者对被检焊缝有个基本的了解为使检测者对被检焊缝有个基本的了解,以下把焊接以下把焊接工艺中有关的焊接方法、焊接型式、坡口型式以及工艺中有关的焊接方法、焊接型式、坡口型式以及焊缝中可能产生的各种缺陷作一简介焊缝中可能产生的各种缺陷作一简介:

@#@1.焊接方法主要有手工电弧焊、埋弧自动焊、气体保护焊和电渣焊等。

@#@1）手工电弧焊它是焊条与母材之间产生电弧,靠电弧的高温熔化焊条与部分母材,在两焊件（母材）之间形成熔池,熔融金属在熔池中经过冶金反应后冷却,形成焊缝,把两焊件连接起来。

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