X-ray tube assembly source inspection technology, commonly known as automatic X-ray tube assembly inspection (AXI), is a technique used to inspect the hidden features of the target object or product that uses X-rays as the source. In the past, X-ray tube assembly inspection has been widely applied in many fields such as medical care, industrial control and aerospace. Regarding PCB inspection, X-ray tube assemblies are commonly used in the PCB assembly process to test the quality of PCBS. For PCB manufacturers that focus on quality, this is one of the important steps.
X-ray tube assembly inspection is a highly effective and indispensable method for detecting internal defects in materials or parts, which is widely used in industry by taking advantage of the transmission properties of various rays to materials and the different levels of absorption and attenuation of rays by various materials, so that the film is photosensitive to images of different blackness for inspection.
Advantages of X-ray tube assembly inspection
1. It is applicable to almost all materials and has no strict requirements for the geometric shape and surface roughness of parts. Currently, radiographic testing is mainly used for the inspection of castings and welded parts.
2. Radiographic testing can directly display defect images, facilitating qualitative, quantitative and location analysis of defects.
3. The radiographic film can be archived for a long time for future reference, which is convenient for analyzing the cause of the accident.
Defects detected in the X-ray tube assembly:
The X-ray tube assembly inspection has relatively high flexibility in detecting volumetric defects such as pores, slag inclusions, and porosity, but relatively low flexibility in detecting planar defects. For instance, it is difficult to detect planar defects (such as cracks) when the ray direction is perpendicular to them. In addition, radiation is harmful to the human body and requires protective measures.