Glad to share you our SMT line production process from Sorotec solar inverter (off grid solar inverter and on&off hybrid solar inverter) manufacturer. Our REVO VM II PRO series solar inverter is the hottest solar inverter in the market.
Today we will show you how these components put into the PCB boards.
Here recommend our PCB board production process.
The preparation work of solder paste.First,the solder paste was stocked in the refrigerator. Then take out into to this temperature recovery machine. After reach the certain temperature then to the mix machine. The solder paste is prepared well.
Next we introduce the PCB production process in details. First, all of the PCB boards will be washed by this Plasma cleaning machine. This is a very important process to keep the board clean also improve the welding quality to avoid empty welding, false welding, short circuit issues.
Its function is to leak the solder paste onto the PCB boards through the stencil. Prepare for the soldering of components.
The components are put on the PCB board right location by this Samsung or Panasonic brands automatic Mounter.
These boards are sent into the re-flow machine. The reflow oven remelts the solder paste pre-distributed on the PCB board pads. It realizes the connection between the pins and the boards of the surface components. This the temperature curve of reflow machine. Actually, there are 3 process. First , the The first is the preheating stage to remove the moisture of the PCB boards. Second, it remelts the solder paste. Third , it is the cooling process.
We use the AOI(automated optical inspection) machine to inspect perform welding quality on the welded PCB board.
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