Water based cleaning process
The traditional way to clean printed circuit boards is to use organic solvents, but CFC-113 has been banned because of its damage to the atmospheric ozone layer.
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
Selective welding of printed circuit board
In PCB proofing, temperature sensitive elements can limit the application of reflow soldering, whether in cartridge or SMD. Therefore, selective welding can be used after reflow welding in most applications.
What are the PCB routing rules and techniques?
In PCB design, wiring is an important step to complete the product design, it can be said that the previous preparation work is done for it. PCB routing includes single - sided routing, double - sided routing and multi - layer routing.
The importance of the first part detection in PCBA processing
The purpose of thawing back temperature: can make the flux and tin powder evenly distributed, so as to give full play to the various characteristics of tin paste; The viscosity and activity of the solder paste after refrigeration are different from that o
SMT patch processing includes equipment and manufacturing processes
SMT SMT processing includes the following equipment: 1, board machine: 2, solder paste printing machine, 3, SPI(3D solder paste detector) : 4, SMT machine, 5, the first piece of detector: 6, reflow welding, 7, plate machine: 8, AOI detection, 9, X-Ray
PCB board welding requirements in PCBA processing
PCBA processing and welding process requirements for PCB board: 1. Heat resistance, 2. PCB shape, 3. PCB size, 5. PCB process edge, 6. PCB reference identification point, 7. Plate design, 8, can withstand solvent washing
How to deal with SMT patch bulk material?
The advantages of PCBA processing clean free technology: 1, a large amount of saving cleaning labor, equipment, site, material (water, solvent) and energy consumption; 2. Save working hours and improve production efficiency; 3, advanced production technol
Specification for PCB storage and inspection in SMT factory
PCB inspection contents: ① appearance inspection: ② size measurement: ③ furnace temperature test: ④ pad welding force test: ⑤ Check the PCB board factory report
Influence of SMT material on welding quality of PCBA
When the welding ends or pins of components are oxidized or contaminated, welding defects such as poor wetting, virtual welding and voids will occur in reflow welding. Poor coplanar properties of components will also lead to welding defects such as virtua
How do PCBA processing plants select high quality reflow soldering?
The heating methods of reflow welding are generally divided into two categories: one is by the red lamp and adapted tube heater; The other type is ceramic plate, aluminum plate and stainless steel plate heater.
PCBA board aging test standards and methods
pcba aging test standards: 1, low temperature work, 2, high temperature work, 3, high temperature and high humidity work
PCBA cleaning techniques
Wave soldering process: Insert components into corresponding PCBA through holes → spray flux → preheat (temperature 90-110℃) → wave soldering (240-260℃) → cooling → repair welding → remove pins of excess components → check solder joints
Достаточно загрузить файлы Gerber, BOM и проектные документы, и команда KINGFORD предоставит полное предложение в течение 24 часов.