How to weld lead-free welding head soldering iron head before use?

In modern life, we can see a lot of lead-free welding head around us, and its application range is very wide, and the more it is used, the more familiar it is. Before using it, we should make preparations and know how to operate it, so that this gesture will not disturb our work. Let's learn how to weld the lead-free welding head soldering iron before use. The differences are as follows: How to weld the soldering iron before use? 

1. Check whether the soldering iron is well grounded before using the soldering iron.

2. Before welding, pay attention to whether the power of the soldering iron matches the solder joints.

3. Wash the welding head with sponge and plate it with tin. 

4. Clean the components to be welded, plate them with tin and lead-free welding head, and then weld them. The temperature should not be too high during welding. 

5. Pay attention to the permeability of solder joints, the distance between points and the cooperation between rosin and solder paste. 

6. After welding, it is necessary to check whether the welded parts have virtual welding, no welding, wrong welding and short circuit.

What should we pay attention to when using electric soldering iron? First, before using the soldering iron, check whether the applied voltage is consistent with the nominal voltage of the soldering iron; Second, the soldering iron should be grounded; Third, after the electric iron is electrified, it is impossible to knock, disassemble and install its electric heating parts; Four, electric iron should be kept dry, should not be used in excessively wet or wet environment; 

5. When dismantling the welding head, the lead-free welding head should be turned off; 

6. After turning off the power supply, apply a layer of tin on the welding head by using the waste heat to protect the welding head;

 7. When there is a black oxide layer on the welding head, wipe it off with emery cloth, then electrify it, and immediately apply it. 

8. Sponge is used to collect tin slag and tin beads, and it is appropriate to pinch it with your hands without water; Nine, do "5s" before welding and "5s" after welding.