SMTThere are two ways of patching, which can be leaded and lead-free respectively. The influence of lead on the living environment is very bad. However, lead-free is gradually replacing lead-containing.SMTThe surface mount technology (SMT) method is mostly lead-free processing. The following is provided by JJYSolder paste manufacturerExplain to the friendsSMTWhat are the differences between the two methods of patching?

    Different amounts of alloy. In lead processing, the two components commonly used are tin and lead. However,Lead-freeThe components of the alloy are mostly tin, silver and copper, but there is also a relatively low content of lead, which has no impact on the environment.

    Different melting points. The melting point and temperature of lead and tin are lower than those of lead-free tin. As the tin content increases, the melting point and temperature will also increase somewhat, but the difference will not be significant.

    Different costs. Tin is more expensive than lead. When lead-free materials replace lead-containing ones, it indicates that the amount of tin in the soldering materials will increase, which will also lead to a significant increase in the cost of the soldering materials. It can be seen from this that the cost of lead-free processing is much higher than that of leaded processing by several times.

    Different processing methods.There is leadThe partners have also seen quite a few lead-free processed products. However, for some processing equipment, such as wave soldering furnaces, solder paste printing equipment, manual soldering irons and other welding materials and parts machinery and equipment, they are all different.

    As mentioned above, leaded processing has better weldability than lead-free processing, but lead-free processing is more environmentally conscious. Want to know aboutSMTFor other issues regarding solder paste in surface mount technology, please feel free to consult usShenzhen JJY Industrial Technology Co., LTDLet's learn and grow together!