1. The setting of SMT reflow oven temperature zone cannot be adjusted at will. The parameters of temperature zone in the above list are basically determined according to the actual curing effect that the area of the welding PCB plate takes up 90% of the effective area of the transmission steel mesh in the welding furnace and the belt moving rate is 75cm±10cm/S. When there is a large discrepancy in the area of the processed PCB, the belt speed should be fine-tuned to achieve a good welding effect. The general principle of adjustment is: when the area of PCB board is small, the net is taken away a little faster, when the area of PCB board is large, the net is taken away a little slower, all to achieve good welding effect shall prevail;
2. PID parameters of the temperature control meter shall not be arbitrarily set;
3. The inlet and outlet of reflow oven machine should avoid the external natural wind blowing in the process of use and the dynamic temperature balance in the furnace, which will affect the welding quality;
4. When the PCB workpiece at the outlet of reflow furnace is sent out, the accident of scald operator's hand should be avoided. It is also necessary to prevent the PCB board from piling up at the discharge port, which will cause the PCB board to fall down or the SMD components with low solder strength under the high temperature state of the PCB board at the exit will fall off due to falling or extrusion impact;
5. Perform daily maintenance of PCB Soldering Machine: clean the surface of the equipment every day to make it free of pollution; when refueling manual mode, click the refueling button once a week to lubricate the rolling chain with high temperature lubricating oil (BIO-30); In continuous production, no less than twice a month: check to add high temperature lubricating oil to the furnace motor and each rotating shaft wheel;
6. Check whether the grounding wire of the welding machine is connected reliably before starting up every day;
7. After troubleshooting, turn on the main power supply of the equipment and turn the red mushroom shaped emergency stop switch clockwise to recover and return to the original working state. When shutdown, PCB and transmission steel mesh belt should not stop in the furnace under the condition of high temperature. The conveyor belt should be stopped after the temperature in the machine drops.