两种药芯钎料在850℃时润湿面积均达到最大值,润湿面积分别为374mm2和275mm2。在850℃之前两种药芯钎料润湿铺展面积随温度升高而增加,在温度达到850℃之后润湿面积随温度升高而急剧下降。
The wetted areas of the two cored solders reached the maximum at 850°C, and the wetted areas were 374mm2 and 275mm2, respectively. Before 850℃, the wetted and spreading area of the two core solders increased with the increase of temperature, and after the temperature reached 850℃, the wetted area decreased sharply with the increase of temperature.