Four common faults of soldering irons
1. No heat after power on
If the soldering iron does not heat up after being energized, it means that the soldering iron has a circuit breakage, and the fault point is not fixed and may be scattered in multiple places. For example, at the plug of the soldering iron, the soldering iron core is broken, the lead of the soldering iron core is broken, and the fault point of the soldering iron is not fixed. Power cord break, etc.
2. The soldering iron head does not eat tin.
The soldering iron tip does not absorb tin. If the newly purchased soldering iron tip is used directly without modification, the soldering iron tip will not be tinned. The soldering iron tip that has been used for a long time will not be tinned, and the soldering iron tip will be burned out and needs to be repaired.
3. The soldering iron is charged
A charged soldering iron is very dangerous for welders and can lead to serious electric shock accidents.
When you find that the soldering iron is charged, immediately cut off the power supply and then conduct a check.
There are several reasons why the soldering iron becomes electrified. The power cord is connected to the terminal of the ground wire. The power cord falls off from the terminal of the soldering iron core and then touches the screw of the ground wire. This causes the soldering iron tip to become charged and the power lead is entangled, causing leakage, and the power ground. The wire itself is leaking, etc.
4. Pit appears on the soldering iron tip
When a soldering iron is used for a period of time, pits or an oxidized corrosion layer may appear on the soldering iron tip, causing the blade shape of the soldering iron tip to change.
Solution: Use a file to remove the oxide layer and pits, file them into their original shape, then tin-plate them, and then you can resume use.
Soldering tip production process
1. Straightening: Finished copper is generally in large rolls and needs to be stretched and straightened. Straightening is the beginning of producing soldering iron tips. Straightening must be very straight, otherwise the product quality will be affected.
2. Cutting: Cut into different lengths according to different models of products.
3. Head turning: The precision of the turner determines the appearance of the soldering iron head. In addition to the common industry standards, the factory also accepts customized samples and customized products based on drawings.
4. Polishing and degreasing: Use a vibration polishing machine to polish and remove the burrs on the turning head.
5. Iron plating: The key to the quality of soldering iron tips is also the core technology of all soldering iron tips. In order to improve the quality of the soldering iron tip, pure iron plating is no longer used. All is electroplated iron alloy. The ratio of additives in the electroplating process will also determine the quality of the soldering iron tip.
6. Correction: The iron-plated material is prone to deformation and needs to be corrected to the required size.
7. Polishing: Prepare the surface for electroplating.
8. Tinning: Pre-tinting is to prepare the soldering iron tip for use.
9. Surface plating: Generally, there are white chromium plating (shown as silvery white), nickel chromium plating (shown as bright color), and black chrome plating (shown as black). No matter what appearance it is, it is inseparable from chromium, and its function is to prevent tin from climbing.
