2022-01-03
Electronic factory DIP plug-in soldering false solder and false solder bad detection - {AOI inspection equipment}
DIP is to insert components by hand, such as some large connectors, the equipment is not prepared to hit the PCB board, through the human or other automated equipment inserted into the PCB board.
DIP line is mainly cast board clerk, demolition board clerk, plug-in clerk, furnace worker, visual inspection of the solder joint after the furnace.
AOI can be placed in different positions after printing, before soldering, after soldering and before or after wave soldering DIP furnace.
1.AOI placed after printing - can detect the printing quality of solder paste for the process. It can detect the amount of solder paste is too much or too little, the position of the solder paste pattern is not shifted, and there is no adhesion between the solder paste patterns.
2.AOl placed after the mounting machine, before soldering - can be placed on the quality of the process inspection. Can detect component paste wrong, component shift, component paste reverse (such as resistor flip), component side stand, component loss, polarity error, as well as the patch pressure is too large caused by the adhesion between the solder paste graphics.
3.AOl placed in the reflow and wave soldering oven after - can be used for soldering quality inspection. Can detect component paste wrong, component shift, component paste reverse (such as resistor flip), component loss, polarity error, solder joint wetting humidity, too much solder, too little solder, leakage, false solder, bridging, solder ball (solder ball between pins), component warpage (vertical monument) and other welding defects.