| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively and securely cut a pseudo conduction part and to surely remove a defective article by sandwiching a printed board with heating plates whose surfaces are heated to a specified temperature and sandwiching it with cooling plates into which coolant is provided inside. SOLUTION: A heating plate 3 on an upstream side and a heating plate 4 on a down stream side are heated to 200 deg.C, 220 deg.C, for example. On the other hand, a cooling plate 5 on the upstream side is set to 100 deg.C, and a cooling plate 6 on the down stream side to 40 deg.C. When transportation blades 33 are stored in slits 15, 16, 19 and 20, upper plates 3b-6b are abutted on lower plates 3a-6a, and the surface/back of a printed board are simultaneously heated or cooled through a silicone rubber. Since the printed board is heated and cooled by sandwiching it by two upper/lower plates and by making the temperatures of the upper/lower plats to be equal, a pseudo conduction part owing to a heat difference can be cut and the warp and the bent of the printed board are corrected.
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