The top and bottom of the solder pot and drawing out adopt the warm mechanism method, and aim at the improvement of maintenance.

焊锅底部和顶部以及回火采用暖温机械方法，目的是改善维修。

In the forming process of the solder embossment, a top (27) of a plurality of solder embossments (22) is flatted and roughened.

在焊料突起成形工序中，对多个焊料突起(22)的顶部(27)进行平坦化及粗糙化。

In the supply process of solder, a welding fluid (28) is supplied to the top (27) of a plurality of solder embossments (22) which is flatted and roughened.

在焊剂供给工序中， 向已被平坦化及粗糙化的多个焊料突起（22）的顶部（27）供给焊剂 （28）。