Date：2022-09-07 16:42:35

Galvanic corrosion, also known as dissimilar metal corrosion or contact corrosion, refers to the phenomenon that when two materials with different electrochemical properties form a circuit with the surrounding media, the corrosion rate of the metal with positive potential slows down, while the corrosion of the metal with negative potential accelerates. The evaluation methods of galvanic corrosion of materials or components mainly include exposure evaluation experiments and electrochemical measurements. This article has collected and sorted out some materials, hoping to have greater reference value for all readers. View >>

Date：2022-09-07 16:40:56

The finer the salt spray particles, the larger the surface area formed, the more oxygen absorbed, and the stronger the corrosion. More than 90% of salt spray particles in nature have a diameter of less than 1 micron. Research results show that the oxygen adsorbed on the surface of salt spray particles with a diameter of 1 micron is relatively balanced with the dissolved oxygen in the particles. View >>

Date：2022-09-05 15:29:37

Capacitor is a kind of device that can accommodate electric charges. It is one of the electronic components widely used in electronic equipment. It is widely used in circuit isolation, AC, coupling, bypass, filtering, tuning loop, energy conversion, control and so on. The detection of capacitors can be divided into three categories: the detection of fixed capacitors, the detection of electrolytic capacitors and the detection of variable capacitors. What are the detection methods of capacitors? Detection technology plays an important role in all walks of life. Through detection, we can ensure product quality to a certain extent. View >>

Date：2022-09-05 15:27:30

It is necessary for manufacturers to ensure the safety and reliability of each component produced. With the higher and higher quality requirements of electronic products, inevitable defects will appear in the processing process. At this time, it is necessary to carry out various tests on the produced components. The quality of electronic products also plays a vital role in the development of the industry and social stability. The following is a brief analysis of the importance of DPA analysis and detection of electronic components for your reference. View >>

Date：2022-09-02 16:27:45

PCB has become the most important and key part of electronic information products. Its quality and reliability level determine the quality and reliability of the whole equipment. If the PCB has defects or manufacturing problems, the final product may fail and cause inconvenience. In these cases, manufacturers will have to recall these devices and spend more time and resources to repair the faults. PCB testing has become an indispensable part of the circuit board manufacturing process. It finds problems in time, assists staff to deal with them quickly, and ensures the high quality of PCB. View >>

Date：2022-09-02 16:22:00

ROHS certification covers a wide range of products, covering almost all electronic, electrical, medical, communication, toys, security information and other products. It includes not only the complete machine products, but also the parts, raw materials and packaging used in the production of the complete machine, which is related to the whole production chain. View >>

Date：2022-09-01 16:01:00

There are various reasons for the failure of integrated circuits. The common reasons are: manufacturing process defects, environmental factors, SMT process, product design defects, EMC design, overvoltage and overcurrent, electrostatic (ESD) damage, etc. View >>

Date：2022-09-01 15:55:00

In PCB processing, wave soldering is to make the welding surface of the plug-in board directly contact with high-temperature liquid tin to achieve the purpose of welding. The high-temperature liquid tin maintains a slope, and the liquid tin is shaped like waves by a special device. Therefore, it is called "wave soldering", and its main material is solder bar. In order to help you have a deeper understanding, the following contents are organized by Chuangxin testing network for your reference. View >>

Date：2022-09-01 15:38:00

Manual welding, as a basic skill that electronics enthusiasts must master, looks simple, but the correct welding steps are often ignored. The wrong operation method will directly affect the welding quality, leaving hidden dangers such as faulty welding and short circuit for products. Therefore, we must master the correct welding method in the process of learning and practice. View >>

Date：2022-08-31 17:19:03

With the continuous development of the electronic industry, the technical level of PCB is also improving. I believe those who have printed boards in various PCB sample factories know that there are many kinds of common Proofing processes, mainly including tin spraying, gold deposition, gold-plated OSP, etc. among them, tin spraying is also divided into lead-free and lead-free tin spraying. How can we distinguish lead-free and lead-free processes for PCB board proofing? View >>