Small knowledge of soldering station-the difference between leaded or lead-free solder wire
1. The difference between leaded and lead-free solder wire is only the difference in content.
2. Lead-containing solder wire needs to be artificially added with lead. The best known soldering ratio is tin-lead solder wire (national standard: tin content 63%, lead content 37%).
3. Lead-free solder wire also contains very little lead, and there is no completely pure metal product at present. Usually lead-free solder wire is called lead-free solder wire. Lead-free does not mean that it does not contain lead at all. Lead-free means that the lead content is relatively low, which can be roughly regarded as lead-free. The EU defines lead-free standards as: 1000PPm. Considering the possibility of further pollution in welding and post-processing, in order to ensure that the customer's finished product meets the EU standard, the lead content of the general solder wire will be much lower than this standard.
4. Both leaded and lead-free solder wires will corrode the tip of the soldering iron, because the lead-free soldering temperature is higher than that of the leaded solder wire, and the alloy composition is different, the lead-free solder wire is more likely to corrode the soldering iron, due to lead-free requirements And corrosiveness, it is recommended to use a lead-free special electric soldering iron when soldering lead-free tin wire.
