| 摘要 |
PROBLEM TO BE SOLVED: To eliminate the need for maintenance cost and to execute soldering with stable soldering quality by obtaining a sufficiently stable jet wave and dissolving the maintenance work of the cleaning work of a rectifying board, which was required in prior art. SOLUTION: A chevron-shape member 53 whose cross section is a chevron form and in which multiple through holes whose shortest facing distances are not less than 8 mm are installed at the base, is provided for the blow out port 28 of a blow out port body 25 which forms the jet wave 29 of melting solder 10. Chevron-shaped guide boards 55 parallel to the member are installed and a stable jet wave 29 even with the large holes is formed. A convergent member which converges the flow of a melting solder 10 is installed on the upstream-side of the chevron shape member 53. Consequently, a more stable jet wave 29 can be obtained.
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