SMT factory incoming material quality inspection standard
◆ Main factors affecting the viscosity of solder paste: 1. Shape and temperature, 2. Thixotropic coefficient of solder paste, 3. Wettability of solder paste
Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
SMT process 17 requirements for component layout design
Component layout shall be designed according to SMT electronic processing production equipment and process characteristics and requirements. Different processes, such as reflow welding and wave soldering, have different layouts for components.
SMT factory mounting process quality inspection and analysis
The cleaning quality detection methods of PCBA are as follows: 1. Test methods of ion pollutants: (1) extraction solution resistivity test method, (2) ion chromatography test method
How does SMT plant clean PCB after surface mounting and welding
Significance of PCB cleaning after surface mounting welding: 1. PCB cleaning after surface mounting welding can prevent the occurrence of electrical defects. 2. PCB cleaning after surface mounting and welding can eliminate corrosive substances. 3. The PCB
The key technology of reflow welding machine in SMT patch processing
SMT basic process elements: solder paste printing -> Parts mounting --> Reflow welding --> AOI Optical Detection --> Maintenance --> The board is divided.
SMT factory component assembly and welding
SMT process flow chart: 1. Material preparation and inspection, 2. Template preparation, 3. Solder paste printing, 4. SMC placement, 5. Reflow welding, 6. Cleaning and inspection
Factors affecting SMT welding quality in PCBA machining
The demand for multifunctional, miniaturized, high-density, high-performance and high-quality electronic products is increasing. High welding quality has become the life insurance of electronic products.
SMT patch processing repair some skills to share
There are two ways to judge the quality of the circuit board: 1. standard rules of size and thickness, 2. light color, 3. Welding appearance
How to reduce the casting rate in SMT patch proofing
The latest quotation of PCBA is determined by the following three parts: 1. PCB plate: 2. SMT Patch Processing Plate: 3.
SMT patch processing basic introduction
SMT patch processing basic introduction: high assembly density, small size of electronic products, light weight, high reliability, strong vibration resistance. Low defect rate of solder joint, good high-frequency characteristics, reduce electromagnetic an
How does smt plant improve production efficiency?
In the main PCB circuit boards and components are not possible to increase the price, so the cost is reflected in the link of assembly. : 1, auxiliary materials: tin paste, tin strip, flux, UV glue, through the furnace fixture, 2, smt patch processing, 3,
smt plant now has what kind of type?
smt plant basically has the following types at present: one, technology, two, processing, three, service, four, trade content
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