[KongchangAI]
Unverified82% confidenceFactTime unknown

无铅焊接因锡铜/锡银铜熔点更高(约217-227度)、润湿性差,需要活性更强的专用无铅助焊剂,用传统有铅松香会上锡不良

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82%
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Long-term
Relevance
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