"Large rosin lead-free tin wire"

The characteristics of Da Song Xiang tin wire (medicine core solder wire) mainly include:

High flux content
The content of built-in rosin flux is usually above 2.5%, which can quickly remove the oxide film on the metal surface during welding and improve welding efficiency by about 40%.  ‌
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Strong brightness of solder joints
The surface smoothness of solder joints is 20% -30% higher than that of solid core types, suitable for welding precision components and appearance sensitive products.  ‌
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High residual impedance
The residue can pass high-voltage testing and is suitable for PCB board soldering and high reliability requirements in the electronics industry.  ‌
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Sealed storage is required
After opening, it is necessary to seal it in a timely manner. Long term exposure can lead to a decrease of more than 15% in flux activity, affecting the welding effect.  ‌
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Applicable scenarios
Suitable for mass production, automatic soldering machine assembly line operations, and scenarios that require fast and continuous soldering