SMT X-ray inspection NDT Non Destructive Testing

Skyworth Group pay attention to products quality inspection Orinial:  Skyworth Group pay attention to products quality inspection Founded in 1988,  Skyworth Group Co., Ltd . is mainly engaged in multimedia (smart TV, content operation business), smart appliances (refrigerators, washing machines, air conditioners, kitchen appliances, etc.), intelligent system technology, modern services. Industry and other four major businesses, the group has Skyworth Group (H00751) and Skyworth Digital (000810) two listed companies, several high-tech enterprises, with state-level enterprise technology center, national industrial design center, is “Made in China 2025 The first batch of demonstration units have been among the top 100 Chinese electronics companies for many years. Skyworth Group Co., Ltd Pay Ateention to product quality and brand image all the time. Under the continuous wave of new technology, Skyworth has introduced automatic production lines and quality testing equipment to impr

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Why LED lamps are getting darker www.seamarkxray.com The LED light source module is generally composed of a substrate, a chip, a packaging material, a lens, etc. In daily use, the long-time operation of the LED easily causes the LED to become darker and darker, and even the light fails. For this problem, D.L. Barton has done research experiments. There are some reasons for the failure of the LED light source module. Generally, the following are the main points: LED lamps are getting darker reasons: 1.The packaging material is degraded; Under long-term work, the LED will cause the temperature of the LED to rise, resulting in a large decrease in the optical transparency of many polymers in the LED exterior packaging material (such as epoxy resin), resulting in a decrease in the light-emitting efficiency of the LED; The study found that when the LED temperature reaches 95 degrees and the current is greater than 40 mA, the LED package material will be carbonized; 2.During

Solder paste printing defects and solutions in SMT chip processing process www.seamarkxray.com    sales25@zhuomao.com.cn +8618779975930 In the SMT chip processing process, solder paste printing is very complicated, and it has very important significance for product quality. This article mainly discusses the common defects of solder paste printing. 1. Incomplete printing: The solder paste has insufficient viscosity and cannot be effectively attached to the PCB or the blade is worn; Solutions: ①Replace the solder paste. When selecting the solder paste, the size of the solid metal particulates should be considered, and the particle size should be smaller than the opening size of the steel mesh; ②Regularly check and replace the scraper; 2. Solder skip, Non-wetting/false soldering: insufficient solder paste or unqualified PCB, easy to appear Solder skip, Non-wetting/false soldering; Solutions: ①Choosing a well-known manufacturer of PCB board brands can reduce the probab