铜硬钎焊散热器制造工艺技术的核心是无焊剂、无铅钎焊合金以及抗退火材料。
The key technology of radiator manufacture by Cup ro Braze is not necessary to use flux, kupper solder and annealing resistance mate rial.
焊剂中较高的松香浓度明显有益于焊点的抗剪切蠕变强度，而对瞬时剪切强度影响不大。
It was also found that higher concentration of rosin in flux is beneficial for shear creep resistance of the joints, while its effect on the instantaneous shear strength is less obvious.
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