PRE-HEATER UNIT AND WAVE SOLDERING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a pre-heater unit to heat a work in advance by a first stage of a solder tank, and a wave soldering device using this pre-heater which are adaptable to lead-free solder. SOLUTION: A fan unit 13 is installed on a lower portion of a heater case 12, and a heater 15 with a fin to heat air fed from the fan unit 13 is installed in a heating chamber 14 in the heater case 12. A radiation plate 17 is installed on an upper portion of the heater case 12. This radiation plate 17 has a large number of holes 16 to feed hot air heated by the heater 15 with the fin to a work W, and the work W is irradiated with far-infrared rays generated by heating the heater 15 with the fin. A collecting means 41 to collect hot air fed to the work W from the radiation plate 17 and circulate the hot air in the fan unit 13 is provided. COPYRIGHT: (C)2004,JPO&NCIPI