| 摘要 |
PURPOSE:To provide an extremely thin solder tape which permits easy reduction in wall thickness in casting structure and has excellent strength, solder spreadability and punchability by consisting the tape of Pb, Sn, Cd, Bi, Zn, Al, In, Ag or Au. CONSTITUTION:A molten metal 5 of the above-described metallic solder material is charged into a crucible 4 and the molten metal 5 is ejected through a nozzle 3 onto a cooling roll 1 rotating at a high speed in an arrow direction, by which the molten metal is quickly cooled and solidified. An extremely thin solder tape 6 having 15-70mum thickness of the casting structure is thus obtd. Since the wall thickness of the tape 6 is extremely thin, the spreading of the solder coating part is small and sticking of the excess solder is obviated. The tape is excellent in terms of energy consumption as well. |
