试样表面镀锡使ADI的抗拉强度和伸长率下降,镀锡层不能有效防止ADI的水脆化。
Soldering on ADI surface decreased the ADI tensile strength and elongation, and solder coating could not prevent from water embrittlement.
材质为T2紫铜料表面镀锡,保证了可靠的导电率,端头尾部内孔有螺纹线,绝缘套为硬质,不断裂,不回弹。
They are tinned T2 copper which assure the credible conductivity. There is thread in the inner hole of the afterbody of terminals, the insulation covering is hard, there is no break no rebound.
对测定镀锡板表面涂油量的测定方法进行了综述,这些方法包括重量法、亲水天平法、分子光谱法和椭圆偏振法等。
Methods for determination oil volume on tin plate surface were reviewed, which include gravimetry, hydrophil balance method, molecular spectrometry and ellipsometry etc.
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