Which is better, lead-free solder paste or leaded solder paste？
First of all, the difference between lead-free solder paste and leaded solder paste is that its material contains no lead components. The tin component of leaded solder paste is lower than that of lead-free solder paste, and the price of lead components is not Therefore, in terms of cost, the cost of leaded solder paste will be lower, and in terms of printing effect and welding quality, because leaded solder paste has better viscosity and wettability, and less welding residues, Therefore, in terms of cost, printing effect and soldering quality, leaded solder paste is better than lead-free solder paste;
Lead-free solder paste is an environmentally friendly solder paste, the main components are tin and other metal alloys, almost no lead content, but because of its high tin content, the cost is expensive, and in terms of final welding quality and presentation effect, Such as solder joint plumpness, gloss, etc., lead-free solder paste is slightly weaker than lead-based solder paste. However, although lead-free solder paste is slightly weaker in these aspects, because lead-free solder paste is harmful to human health and environmental pollution The harm caused is the least, so in the actual patch processing, lead-free solder paste is the most mainstream soldering material. Most customers choose to use lead-free solder paste when choosing solder paste, especially foreign customers. This is the case; therefore, in terms of safety and pollution, lead-free solder paste is better than lead-based solder paste;
To sum up, I think everyone has a certain standard in mind about which lead-containing solder paste or lead-free solder paste is better. If you consider the cost and soldering quality, lead-based solder paste will be better. , and if the safety and pollution are considered, the lead-free solder paste will be better.
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