| 摘要 |
PURPOSE: An automatic soldering device of a bi-material tube and a bi-material tube are provided to improve the soldering and adhesion efficiency of a bi-material tube by maintaining a temperature proper for soldering and allowing a filler material to uniformly melt into the junction of tubes. CONSTITUTION: An automatic soldering device of a bi-material tube comprises a bi-material tube(C), a nitrogen gas supply unit which prevents the oxidation of the bi-material tube, a control panel(28), a transfer unit in which rollers installed on an upper table of a main body frame(22) are driven with a lower roller driving unit and a suction tube and a capillary tube are transferred side by side, a flux supply unit(40) which puts flux in the junction of the bi-material tube, a preheating unit which heats the bi-material tube first with a high frequency coil(52), a heating unit(60) which heats the pre-heated bi-material tube secondly, a filler material supply unit(70) which puts a filler material to the junction of the heated bi-material tube for soldering, a cooling unit which cools the welded tube, and a loading unit(100) which delivers the welded tube into a collecting box.
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