Is there poison in the soldering iron solder in PCBA processing?
Normally speaking, if the protection and raw material procurement in accordance with national standards, solder will not cause significant harm. Now it's basically lead-free products.
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PCBA processing plant 28 key manufacturing indicators
In the future, the application of KPI will become more and more important and will become an objective basis for the improvement and evaluation of intelligent manufacturing related projects.
Troubleshooting method of short circuit in PCBA processing
To introduce the troubleshooting method of short circuit in PCBA processing: Open the PCB design drawing on the computer, pay attention to the IC internal short circuit, three, if found short circuit, it is recommended to take a board secant line, step by
The reason and solution of PCBA processing false welding and false welding
The reason for the appearance of false welding/false welding; 1, solder pad and component pin oxidation, 2, less tin, 3, temperature is too high or too low, 4, low melting point of solder paste, 5, solder paste quality problem,
What are the PCBA processing steps
How to improve the welding hole of PCBA:(1) The PCB and parts will be exposed in the air for a long time to avoid moisture, (2) control the welding paste with moisture, It is very easy to cause skin pores and tin beads, (3) the environmental humidity cont
What is the difference between the lead process and the lead-free process in PCBA processing
PCB circuit boards will produce some bad problems in the overheating temperature, so for different materials of PCB circuit boards, the temperature resistance, need to be understood in detail, do not exceed its high limit temperature, so as to avoid the P
How to choose PCBA processing solder paste
How to choose PCBA processing solder paste: (1) according to the value and use of pcb circuit board products,(2) according to the storage time of PCB and components and surface oxidation degree determines the activity of solder paste. (3) Select solder pa
The causes and solutions of PCB board distortion in PCBA processing are analyzed
The measurement method is to dissolve the sample in hot alcohol with titanium phenol as an indicator, titration required potassium hydroxide milligram number, namely its acid value.
Frontal temperature gun circuit board PCBA processing
When the infrared frontal temperature gun is aimed at and close to the distance between the measured object and the tube measured by the sensor, the infrared sensor plate will collect the temperature and convert it into an electrical signal.
How to deal with PCBA processing correctly
In the choice of PCBA patch processing manufacturers, electronics factories are very careful, so we should choose from the following points: first, customer experience, second, production qualifications, three, cost, four, service
How to eliminate short circuit fault in PCBA processing
There are six points to evaluate the manufacturability of PCB design:1. DFM review of light board2. Check the consistency between the actual components and the pad3. Generate 3D graphics: heat, whether it is conducive to SMT reflow welding heat absorption
How does PCBA process solder paste printing
Solder paste printing is very important to PCBA in PCBA processing, which directly determines the overall welding effect of PCBA. In the process of PCBA processing, the printing effect of solder paste includes steel mesh, solder paste, printing process, d
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