| 摘要 |
<P>PROBLEM TO BE SOLVED: To form uniform stable jet stream on a blow port by jetting molten solder from each part of the blow port of a blow port body for forming the jet stream with uniform pressure and speed and achieve soldering having uniform soldering quality at any position of a printed wiring board in a flow soldering method. Ž<P>SOLUTION: In a solder jet stream forming device for forming the jet stream of the molten solder on the blow port of the blow port body by connecting a molten solder supply means with the blow port body, the solder jet stream forming device has a meandering channel between the blow port and the molten solder supply means, and the meandering channel is formed by making a length of a channel shorter or the longitudinal cross-section of the channel larger at a position having larger supply pressure of the molten solder which is supplied to the blow port from the molten solder supply means. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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