Reflow method and reflow device
    2.
    发明授权
    Reflow method and reflow device 失效
    回流方式和回流装置

    公开(公告)号:US06402011B1

    公开(公告)日:2002-06-11

    申请号:US09633293

    申请日:2000-08-04

    IPC分类号: B23K3102

    摘要: For reflow soldering, radiant heating is applied to one surface of a printed circuit board on which electronic components are placed and onto which cream solder is supplied and at the same time hot air is blown locally and roughly perpendicular to to-be-connected points on said one surface of the printed circuit board. This reflow method permits secure soldering even if the hot air is set at a temperature not exceeding the heat resistance of the electronic components, which is possilbe because of its combination with the radiant heat. Moreover, this reflow method can permit soldering in such a manner that only the to-be-connected points are heated selectively, because the hot air is blown locally and roughly perpendicular to the points to be connected. Thus, this reflow method prevents heat damage to other sections than the to-be-connected points and ensures that the solder at the to-be-connected points is melted.

    摘要翻译: 对于回流焊接,辐射加热被施加到印刷电路板的放置电子部件的一个表面上,并且在其上供应奶油焊膏,并且同时热空气局部地被吹送并大致垂直于待连接点 所述印刷电路板的一个表面。 这种回流方法即使热空气被设定在不超过电子部件的耐热性的温度下,由于与辐射热的组合,所以能够进行安全的焊接。 此外,这种回流方法可以以这样的方式允许焊接,即只有待连接点被选择性地加热,因为热空气局部地吹动并且大致垂直于要连接的点。 因此,这种回流方法可防止对待连接点的其他部分的热损伤,并确保待连接点处的焊料熔化。