Date：2022-02-21 14:29:00

Nondestructive testing is to use the acoustic, optical, magnetic and electrical characteristics of materials to detect whether there are defects or non-uniformity in the tested object without damaging or affecting the service performance of the tested object, and give information such as the size, location, nature and quantity of defects. With the continuous improvement of testing requirements, nondestructive testing technology has widely adopted digital technology and has gradually entered the measurement field. For example, for the measurement of geometric quantities and material characteristic parameters, it is necessary to monitor and control the continuous stability of instrument indexes according to certain procedures, so as to improve the reliability of testing results. View >>

Date：2022-02-21 14:00:00

IC chip appearance detection system in the production process of IC integrated chip devices, the appearance quality detection of the chip is an essential link, including the detection items such as pin size, deformity, deflection, uneven spacing and poor flatness of the chip, and the above quality problems will directly affect the quality of circuit products. The automatic detection of appearance defects requires the use of electronic component appearance detection equipment. Then, how to detect the appearance defects of electronic components? View >>

Date：2022-02-21 13:39:29

Low temperature test is mainly used to evaluate the impact of low temperature conditions on the safety, integrity and performance of equipment during storage, work and disassembly. To determine the sequence of low temperature test, two principles should be followed: maximize the service life of equipment and the applied environment should be able to display the superposition effect to the greatest extent. View >>

Date：2022-02-21 13:25:02

Ultrasonic testing, also known as ultrasonic testing and ultrasonic flaw detection, is a kind of nondestructive testing. Nondestructive testing is a testing method to check the surface and internal quality of the inspected parts without damaging the working state of the workpiece or raw materials. Ultrasonic nondestructive testing (NDI) is a development and application of ultrasonic nondestructive testing. Its equipment includes: ultrasonic flaw detector, probe, coupling agent and standard test block. Its purpose is to detect casting shrinkage cavity, bubble, welding crack, slag inclusion, incomplete fusion, incomplete penetration and other defects and thickness measurement. View >>

Date：2022-02-18 16:23:00

Chemical analysis is classified into classical gravimetric analysis and volumetric analysis. Gravimetric analysis refers to the calculation of the chemical composition of the sample according to the mass of the product generated by the chemical experimental reaction of the sample. Most of them refer to the mass method. Volumetric method refers to the volume of standard test solution consumed by the sample in the reaction. The volumetric method can determine the main components of the sample and the secondary components of the sample. View >>

Date：2022-02-18 16:20:00

Alternating damp heat test includes constant damp heat test and alternating damp heat test. The test simulates the environment of tropical rain forest to determine the adaptability of products and materials to use and storage when temperature changes and product surface condensation. It is commonly used in life test, evaluation test and comprehensive test. The technical indexes include: temperature, relative humidity, conversion time and alternating times. View >>

Date：2022-02-18 16:00:00

Component analysis technology is mainly used to analyze unknown substances and unknown components. Through component analysis technology, you can quickly determine the various components in the target sample, help you conduct qualitative and quantitative analysis on the sample, and identify the materials, raw materials, additives, specific components and contents, foreign matters, etc. of polymer materials such as rubber. View >>

Date：2022-02-17 18:08:31

Inspection is the conformity evaluation of electronic products through observation and judgment, combined with measurement and trial test when appropriate. Product inspection is an essential means of quality control in the production of modern electronic enterprises. It mainly plays the role of process control, quality control and judging the qualification of products. The product inspection shall implement the "three inspection" system combining self inspection, mutual inspection and full-time inspection. View >>

Date：2022-02-16 18:17:03

Weldability of metal materials refers to the ability of metal materials to obtain excellent welded joints under certain welding processes, including welding methods, welding materials, welding specifications and welding structure forms. In order to help you have an in-depth understanding, this paper will summarize the relevant knowledge of metal material welding. If you are interested in what this article will cover, read on. View >>

Date：2022-02-16 18:14:27

When testing the chip, pay attention not to cause a short circuit between the pins. The short circuit at any moment can be caught, resulting in the chip burning out. Failure analysis is an important part of chip testing. Whether for mass-produced samples, design links or customer returned products, failure analysis can help reduce costs and shorten the cycle. View >>