Date：2022-08-03 18:03:55

Reliability design is an important part of the overall engineering design of the system. It is a series of analysis and design techniques to ensure the reliability of the system. As an important component in an electronic system, the reliability of power supply determines the reliability of the whole system. Switching power supply is widely used in various fields because of its small size and high efficiency. How to improve its reliability is an important aspect of power electronics technology. View >>

Date：2022-08-02 18:08:39

In the process of using connectors, it is inevitable to encounter the failure of connectors. Although each connector has a rated service life, for connectors used in industrial machinery and equipment, some factors will also lead to premature failure of connectors, and even damage to expensive machinery and equipment. This article will introduce the causes of connector connection failure. In addition, this paper will also describe the matters needing attention in the test of board to board connectors. View >>

Date：2022-08-02 17:45:57

High and low temperature test is used for adaptability test of electrical, electronic products, components and materials when they are stored, transported and used in high and low temperature environment, and whether electronic products can adapt to harsh environment. High and low temperature experiment is a necessary test item for product reliability. What adverse effects will high and low temperature have on products? This article has collected and sorted out some materials, which are expected to be of great reference value to readers. View >>

Date：2022-07-29 14:37:47

Material fatigue test technology refers to the technology that characterizes the degradation of mechanical properties of materials under alternating load, which is widely used in the study of fatigue resistance of materials and components such as metals, rubber, composites and so on. Fatigue test can predict the fatigue strength of materials or components under alternating load. Generally, this kind of test cycle is long and the required equipment is complex. However, because general mechanical tests such as static tension, hardness and impact tests can not provide the performance of materials under repeated alternating load, it is necessary to carry out fatigue test for important components. This article has collected and sorted out some materials, which are expected to be of great reference value to readers. View >>

Date：2022-07-29 14:29:47

Failure analysis can evaluate the effectiveness of different test vectors, provide necessary supplements for production testing, and provide necessary information basis for verification test process optimization. Failure analysis often requires electrical measurement and advanced physical, metallurgical and chemical analysis methods. The purpose of failure analysis is to determine the failure mode and failure mechanism, put forward corrective measures, and prevent the recurrence of this failure mode and failure mechanism. Failure mode refers to the observed failure phenomena and forms, such as open circuit, short circuit, parameter drift, function failure, etc. Failure mechanism refers to the physical and chemical processes of failure, such as fatigue, corrosion and overstress. The following is a brief analysis of the failure analysis steps of integrated circuits for your reference. View >>

Date：2022-07-29 14:14:01

Welding materials shall meet the design requirements and relevant standards, and quality certificates and baking records shall be checked. View >>

Date：2022-07-28 16:00:00

Electronic components often fail in the process of use. Failure means that the circuit may fail, thus affecting the normal operation of the equipment. The failure causes and common faults of common components are analyzed here. Most of the faults in electronic equipment are ultimately caused by the failure of electronic components. If you are familiar with the failure causes of components and locate the failure causes of components in time, you can eliminate the faults in time and make the equipment operate normally. View >>

Date：2022-07-28 15:00:00

In order to obtain the sensitive environment of electronic components, the typical failure modes related to the environment are analyzed, as shown in the table. View >>

Date：2022-07-28 14:30:00

Because fatigue fracture usually occurs from the weakest part of the machine or the stress concentration caused by external defects, fatigue fracture is very sensitive to many factors, such as cyclic stress characteristics, environmental media, temperature, surface state of the machine, internal structural defects, etc., which lead to the generation of fatigue cracks or rapid crack growth and reduce the fatigue life. In order to improve the fatigue resistance of machine parts and prevent the occurrence of fatigue fracture accidents, reasonable structural shapes should be selected during the design and processing of machine parts to prevent surface damage and stress concentration. There are many factors that affect the fatigue strength of metal materials. Here are some common factors that affect the fatigue strength. View >>

Date：2022-07-27 16:53:19

As one of the five conventional inspection methods in radiology, X-ray transmission inspection can provide photos of whether there are defects and relevant dimensions in the inspection parts of castings. In industrial applications, X-ray is often used for defect detection of auto parts manufacturing, internal defect detection of aluminum alloy castings, quality screening of magnesium alloy castings, automobile hub detection, subframe detection, hinge quality detection, etc., to ensure that the tested industrial products have high strength; At the same time, in the field of weld detection, we often use X-ray to carry out cylinder weld detection, pipe weld detection, boiler weld detection, aerospace parts weld detection, etc. View >>