Difference between lead-free reflow and leaded reflow
Release time:
2023-05-16 09:33
Source:
Lead-free reflow soldering is because the solder paste it uses is lead-free environmental protection solder paste, and the products are lead-free environmental protection products. There are some differences between lead-free reflow welding and general lead reflow welding. The following are the main differences shared by Rising Tech.
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1. Different welding temperatures: the welding temperature of lead-free reflow welding is high, while that of lead reflow welding is low.
2, different environmental protection: lead-free reflow environmental protection does not prohibit lead products, must be lead-free environmental protection products.
3. Different high temperature resistance: the high temperature resistance of lead-free reflow welding is better than that of lead reflow welding.
4. Low melting point of lead solder alloy, low welding temperature, less thermal damage to electronic products; Lead solder alloy wetting Angle is small, good weldability, product solder joint "false welding" possibility is small; The toughness of the solder alloy is good, and the vibration resistance of the solder joint is better than that of the lead-free solder joint.
Lead-free reflow welder belongs to one kind of reflow welding. Early reflow soldering was done with lead-based materials. With the development of environmental protection, people pay more and more attention to lead-free technology (the current lead-free reflux welding). The biggest change is in materials, especially solder. And in the process, the biggest impact is the welding process. This is mainly due to the characteristics of the solder alloy and the corresponding flux.
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