[KongchangAI]
Unverified92% confidenceFactTime unknown

有铅锡丝(Sn63/Pb37)熔点183℃,共晶点低、流动性好、上手容易,适合业余爱好者和维修;无铅锡丝(如Sn99.3/Cu0.7或含银SAC305)熔点217-227℃,需更高烙铁温度且润湿性略差

1
Sources
92%
Confidence
Long-term
Relevance
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