Date：2022-10-27 11:00:00

FMEA is a systematic activity in the product design stage and the process design stage, which analyzes the subsystems and parts constituting the product and each process constituting the process one by one, finds out all potential failure modes, and analyzes their possible consequences, so as to take necessary measures in advance to improve the quality and reliability of the product. This paper collects and sorts out some materials, hoping to be of great reference value to all readers. View >>

Date：2022-10-26 16:13:45

Metal welding is a relatively technical process, so it is often difficult to operate. During low-temperature welding construction, attention shall be paid to temperature, welding materials, preheating, welding seam and cooling. At low temperature, the surface of weldment is easy to frost and slide, which brings difficulties to welding operation. Therefore, the following links should be paid close attention to when using welding tools to ensure that the welding process is completed with high quality under low temperature environment. View >>

Date：2022-10-26 16:11:44

Non destructive testing refers to a test method to inspect the surface and internal quality of the inspected parts without damaging the working conditions of the workpiece or raw materials. It is a test method to inspect the surface and internal quality of components. It is the general term of all technical means to detect whether there are defects or nonuniformities in the inspected object by using acoustic, optical, magnetic, electrical and other characteristics without damaging or affecting the service performance of the inspected object, and to give the size, location, nature, quantity and other information of defects, so as to determine the technical state (such as whether the inspected object is qualified, remaining life, etc.) of the inspected object. View >>

Date：2022-10-24 18:24:46

Most electronic products have precise internal structure, small components, high electronic integration and high requirements for welding. Welding technology plays an important role in the assembly of electronic products. Wave soldering and reflow soldering are two important technologies in the development of electronic welding. To help you understand, the following contents are organized by the Core Creation Detection Network for your reference. View >>

Date：2022-10-21 15:01:28

PCB (printed circuit board) can be divided into rigid PCB and flexible PCB. The former can be divided into three types: single-sided PCB, double-sided PCB and multi-layer PCB. After PCB manufacturing, inspection must be carried out to determine whether the quality is compatible with the design requirements. Differences in PCB quality levels lead to differences in complexity and testing and inspection methods. So far, rigid double-sided PCBs and multilayer PCBs account for relatively large applications in electronic products, and sometimes flexible PCBs are used in some cases. Next, we will introduce the quality inspection standards for PCB: View >>

Date：2022-10-21 15:00:00

The purpose of environmental stress screening is to accelerate the internal potential defects into faults, find and eliminate them by applying reasonable environmental stress to the products. The purpose is to eliminate the early faults of the products. In the working process of electronic products, in addition to the electrical stresses such as voltage and current of electrical loads, environmental stresses also include high temperature and temperature cycle, mechanical vibration and impact, humidity and salt spray, electromagnetic interference, etc. Under the action of the above environmental stress, the product may have performance degradation, parameter drift, material corrosion, etc., or even failure. This paper collects and sorts out some materials, hoping to be of great reference value to all readers. View >>

Date：2022-10-20 16:35:02

There are many electronic components, such as resistors, capacitors, chips, diodes and transistors. The application fields of electronic components are also very wide, such as thyristor (silicon controlled rectifier), inductance coil, transformer, crystal oscillator, earphone, resistor, capacitor, etc., which all use electronic components. Any product will have some bad appearance during production, and electronic components are no exception. How to check the appearance quality of electronic components? If you are interested in the content to be covered in this article, please read on. View >>

Date：2022-10-20 16:33:00

Due to the environmental hazards associated with lead, the electronics industry is in the process of eliminating lead from all manufactured products. RoHS helps to reduce the damage to human beings and the environment in the third world countries. In these third world countries, today's "high-tech waste" mostly ends with this kind of waste. The use of lead-free solders and components provides direct health benefits to electronics workers in prototype manufacturing and production operations. View >>

Date：2022-10-19 16:58:36

Soldering is a science. Its working principle is to heat and melt the solid solder wire with a heated soldering iron, and then make it flow into the metal to be welded with the help of the flux. After cooling, a firm and reliable welding point is formed. Electronic components are components of electronic components and small electrical machines and instruments. They are often composed of several parts and can be used in similar products; It often refers to some industrial parts such as electrical appliances, radios and meters, such as capacitors, transistors, hairspring, spring and other sub devices. Welding components with electric soldering iron is a basic assembly process, which plays a key role in ensuring the quality of electronic products. The welding points of some components are introduced below. View >>

Date：2022-10-19 16:32:00

In many electronic and electrical circuits, switching power supply is a circuit with high failure rate. Once the switching power supply fails, it will lead to various other failures. Switching power supply has many advantages, such as high efficiency, small size, voltage rise and fall, negative pressure output, etc. However, in the actual use process, many designers ignored the test items of the switching power supply or did not understand the test items, resulting in many power supply products not meeting the specifications after being designed, or the function, performance and life are not up to the standard, so they need to redesign. This paper collects and sorts out some materials, hoping to be of great reference value to all readers. View >>