Date：2023-01-10 14:42:44

Because welding is simple, economical, safe and can simplify the manufacturing process of complex parts, welding technology has been widely used in the mechanical manufacturing industry, and many riveted structures have been replaced by weldments in the past. Therefore, the application of welding technology will be more and more extensive, and the metallographic inspection of weldments will be more and more. In order to help you understand in depth, this paper will summarize the relevant knowledge of welding metallographic inspection. If you are interested in the content to be covered in this article, please read on. View >>

Date：2023-01-10 14:37:33

ROHS certification is also called environmental protection certification. RoHS certification actually refers to the test of a hazardous substance. This standard has been formally implemented since July 1, 2006, and is mainly used to standardize the material and process standards of electronic and electrical products, making it more conducive to human health and environmental protection. View >>

Date：2023-01-09 15:41:27

Tin blasting is a poor welding phenomenon in the PCBA processing process, specifically refers to the phenomenon that the solder paste at the solder joints produces explosive bombs during the welding process. Tin blasting will lead to incomplete PCBA solder joints, such as air holes, etc. At the same time, tin blasting is also the main reason for the occurrence of solder beads. So what is the reason for the occurrence of tin blasting? Let's take a closer look. View >>

Date：2023-01-09 15:37:24

Environmental reliability test is an activity to evaluate the product's ability to complete specified functions under specified environmental conditions and within specified time in order to maintain functional reliability in all environments such as expected use, transportation or storage during the specified service life. In addition, the environmental test can be used to analyze and verify the impact of various environmental factors on product efficiency and the mechanism of action, involving the application fields of electronics, automobiles, rail transit, universe, ships, homes, information technology equipment, etc., which is helpful to help enterprises improve their products, save the cost of product development and production, and improve the quality of products. View >>

Date：2023-01-06 14:54:34

Failure analysis refers to all technical activities aimed at finding out the cause of failure and taking preventive measures for failed components. It is equivalent to material diagnostics. Various analytical instruments and methods are used to comprehensively analyze fracture defects, find out the causes of failure, and take measures to prevent the recurrence of similar failures. Failure analysis is not only a technical activity to analyze the causes of failed parts, but also a quality management activity, involving design, production, use, maintenance and other fields. Effective failure analysis can often find problems in terms of design rationality, process stability, product reliability, safety and practicality, so that we can improve and prevent them and fundamentally improve product quality. View >>

Date：2023-01-06 14:52:42

The application of laser welding technology in the world is more and more extensive, and many industrial manufacturing fields in China need to cooperate with laser welding machines to complete the processing of some objects. How to correctly set and control these parameters in the high-speed continuous laser welding process, and control them within the appropriate range, so as to ensure the welding quality. Laser cutting manufacturers believe that the reliability and stability of weld formation is an important issue related to the practicality and industrialization of laser welding technology. The main factors affecting the quality of laser welding are welding equipment, workpiece conditions and process parameters. View >>

Date：2023-01-05 16:27:39

Castings are metal shaped objects obtained by various casting methods, that is, smelting good liquid metal. By using casting, injection, suction or spray casting methods in other pre prepared molds, and cooling through subsequent treatment after grinding, the metal castings obtained will form a certain shape, size and product performance. View >>

Date：2023-01-05 16:25:55

The laboratory shall specify the person in charge of safety and the management department of inspection consumables. The management department shall formulate corresponding purchase, storage and use procedures and corresponding assessment system. The department using consumables shall specify its own safety responsible person and consumables management personnel. View >>

Date：2023-01-04 15:12:06

CMA is the laboratory qualification accreditation, also known as metrological certification. It can only be obtained after passing the metrological verification, testing ability and reliability assessment of the laboratory by the metrological administrative department of the people's government at or above the provincial level. The qualification accreditation of legally established inspection and testing institutions shall be organized and implemented by the State Administration of Market Supervision; The qualification accreditation of other inspection and testing institutions shall be organized and implemented by the market supervision and administration department at the provincial level in their administrative regions. If a laboratory or organization wants to apply for CMA qualification and obtain the qualification for product quality inspection and testing, what conditions should the inspection and testing organization applying for qualification certification meet? View >>

Date：2023-01-04 15:11:48

X-RAY detection realizes the disadvantage of not being able to see through the opaque objects with the naked eye, and is widely used to detect the internal defects of the opaque materials, such as detecting whether there are gold wire abnormalities in the encapsulated IC chip, detecting whether the BGA solder has a high bubble void rate, detecting whether the internal wire core of the wire is broken, and so on. The purpose of detection is achieved through the light and dark images formed by the density difference of different materials. As the mainstream of the market, X-RAY non-destructive testing equipment, although only auxiliary testing, can be used to detect whether there are defects on solder joints. View >>