How does X-ray inspection technology realize non-destructive testing of products?

Date：2022-12-27 15:53:06Views：379

Based on strict control of product quality, X-RAY testing equipment is often used for product fault analysis, and its nondestructive testing features are very efficient for detecting internal defects of products. X-ray has a certain penetrability, which can accurately detect the defects in the product and find the root cause of the defects. At the same time, the product structure is processed and displayed on the screen or TV screen to obtain the X-ray image with black and white contrast and sense of hierarchy.

The light source is ductile radiation and characteristic radiation, with different generation mechanisms and excitation mechanisms. Tough radiation is caused by the sudden deceleration of high-speed electrons. When charged particles are slowed down by the Coulomb field, the lost kinetic energy will be converted into emitted photons, which is a continuous spectrum of ductile radiation.

Non destructive detection technology refers to the detection method to obtain information, characteristics or components related to the quality of physical and chemical information without destroying the original state and chemical properties of the tested substance. NDT This technology has been widely used in automobile, additive manufacturing, smart phone and other industries, and can be used for lithium battery SMT welding, IC packaging, IGBT semiconductor, LED light strip backlight bubble duty cycle inspection, casting welding defect inspection, electronic equipment internal structure nondestructive inspection, etc.

X-ray testing equipment is divided into medical and industrial, medical is biological and human body examination. X-ray scattering, differential absorption, light sensitivity, flash, etc. Through comparison, combined with clinical symptoms, laboratory results and pathological diagnosis, it can be determined whether a certain position of the body is normal. X-ray diagnostic technology has become the earliest non planing visceral examination technology in the world.

The target objects of industrial x-ray testing equipment are industrial products, such as components, electronic products, etc. Non destructive testing of product surface quality and internal quality mainly refers to rapid testing of products, followed by radiographic image analysis, or the working state of raw materials. Find out the causes of product defects and deal with problems encountered in production. Industrial x-ray machine and x-ray detector actually have the same effect.

There are many kinds of rays, including X-ray, γ X-rays and neutron rays. All three are used for NDT, including NDT. X， γ Radiation is widely used in defect detection of industrial products and structural materials such as boiler and pressure vessel welds, while neutron radiation is only used in some special places.

The main application of radiation testing is usually to detect the macroscopic geometric defects inside the side sample according to different characteristics (such as the type of radiation used, recorded equipment, process and technical characteristics, etc.). Radiation detection can be divided into many different methods: Radiography refers to X-ray or γ Radiographic testing method is the most basic and commonly used radiographic testing method.

Radiography: X-ray radiation comes from X-ray tubes, which are bipolar tubes. Energize the cathode tungsten wire to release incandescent electrons in vacuum. If dozens of KV are added between the two poles at a voltage of 100 volts (called the pipe voltage), the electrons will accelerate the voyage from the negative pole to the anode, and obtain a lot of kinetic energy. When these high-speed electrons collide with the anode. X-ray is released under the influence of coulomb field outside the anode metal nucleus. Part of the kinetic energy of the electron becomes x-ray energy, and most of it becomes heat energy. The electronic machine moves from the negative pole to the anode, and the current moves from the anode to the negative pole. This current is called pipe current. To adjust the pipe current, just adjust the tungsten wire heating current. The pipeline voltage is adjusted by adjusting the main voltage of the main transformer of the X-ray equipment.

X-RAY detection equipment has a wide range of applications and application scenarios, including electronic semiconductors, industrial casting, lithium battery new energy, food foreign matter detection, public safety, etc., with numerous subdivisions. That's all for this article. I hope it can help you. We will bring more wonderful content later. The company's testing services cover: testing and verification of electronic components, IC authenticity identification, product design material selection, failure analysis, functional testing, factory incoming material inspection, tape weaving and other test items. Welcome to call Chuangxin Testing, we will serve you wholeheartedly.