X-ray Orientation Analyzer advantages:
   X-ray real-time imaging is intuitive, photographic film can be stored for a long time, and the sensitivity of non-destructive testing of thin-walled workpieces is high. Sensitive to volumetric defects, the planar distribution of defect images is true and dimensionally measured. There is no strict requirement on the surface finish of the workpiece. The grain size of the material has little effect on the test results and can be applied to the detection of internal defects of various materials. Therefore, it is widely used in the welding quality inspection of pressure vessels.
X-ray directional analyzer disadvantages:
   It is not sensitive to surface defects, the radiation is harmful to the human body, the radiation source is expensive, and the protection cost is higher. The radiographic film has a long evaluation period and low sensitivity to thick-walled workpieces.
 

Introduction and scope of common standards for industrial X-ray directional analyzers
1. China's boiler and pressure vessel industry radiographic inspection standards:
JB/T4730.2—2005 Non-destructive testing of pressure equipment - Part 2: Radiographic testing
GB/T3323-2005 Steel-melting welding butt joint radiography and weld quality classification
2. American Standard: ASME Volume 5, Volume A, Chapter 2, Chapter B, Chapter 22;
3. National standard:
DG1410---2006 Radiation inspection (general requirements)
DG1410.1---2006 Radiographic inspection procedures for steel butt joints
DG1410.2---2006 Radiographic inspection procedures for small-diameter pipe butt joints
DG1410.3---2006 Small-diameter pipe butt joint ray real-time imaging inspection gauge
4. JB/T4730.2—2005 The standard divides the quality of weld radiography into three grades: A grade, AB grade and B grade (different grades, photographic sensitivity, clarity,
Different contrast)
Class B is generally used for nuclear container weld inspection;
Class A is low grade and can be applied to weld inspection of general structural parts;
AB is an intermediate grade and is mainly used for the inspection of pressure butt welds of boilers and pressure vessels;
5. The JB/T4730.2-2005 standard divides the weld quality into four levels;
Grade 1 is commonly used for the quality inspection of butt welds with specially required equipment;
Grade 2 is mainly used for quality acceptance of important pressure butt welds of boilers and pressure vessels.
Grade 3 is mainly used for the quality acceptance of important structural parts and general pressure butt welds of boilers and pressure vessels.
4 Extremely low grade, products requiring a weld quality of 4 grades should not be subjected to RT test.
Wait for some standards