| 摘要 |
PROBLEM TO BE SOLVED: To provide a jet stream soldering device, which is suitable for unleading of a soldering while a desired soldering quality is obtainable in an inert atmosphere. SOLUTION: A soldering work space 13 is covered by a covering element 14, and the work W1 enter, exit openings 15, 21, 22 are formed on the covering element. An inert gas of high temperature, which can restrain a temperature decrease of a melted solder 11, is jetted from a high temperature gas jetting nozzle 18 against a jet flow tip end side of a melted solder so as to make a working space as of a high temperature inert atmosphere. At the openings of the cover element, a gas curtain 17 is formed by providing a curtain forming nozzle 16 for confining the high temperature inert gas in the work space by preventing an air entanglement to be caused by passing of the work.
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