论文部分内容阅读
薄板奥氏体不锈钢(这里指厚度3≤δ<10mm的板材)在压力容器中应用十分广泛。在压力容器检验中,奥氏体不锈钢容器常用检验方法中除了宏观检验外,着色探伤是最主要的无损检测手段。但着色探伤只能检查表面缺陷,对在用奥氏体不锈钢压力容器来说,很多缺陷都是内部缺陷,因此应用超声波探伤,对压力容器检验有着重要的实用价值。1探伤方法的选择在JB/T4730.3—2005超声检测标准中,对奥氏体不锈钢焊缝采用纵波斜探头,一次波法探伤,且规定该方法仅适用母材厚度δ≥10mm。显然,当
Plate austenitic stainless steel (here refers to the thickness of 3 ≤ δ <10mm plate) is widely used in pressure vessels. In the pressure vessel inspection, austenitic stainless steel containers commonly used test methods in addition to macro tests, the color test is the most important non-destructive testing methods. But the color inspection can only check the surface defects, the use of austenitic stainless steel pressure vessels, many defects are internal defects, the application of ultrasonic testing, the pressure vessel inspection has an important practical value. A choice of testing methods JB / T4730.3-2005 ultrasonic testing standards, austenitic stainless steel weld using longitudinal wave oblique probe, primary wave method testing, and provides that the method is only applicable to the base metal thickness δ ≥ 10mm. Obviously, when