| 摘要 |
PURPOSE:To prevent deterioration of a quality of a product due to an effect of an open air temperature and dispersion in distribution of a temperature within a furnace upon obtaining a maldistribution prevention effect of resin and removal effect of thermal residual stress of the same, by shifting molds provided sideways at predetermined intervals while the molds are being rotated within a curing furnace. CONSTITUTION:A curing furnace 6 is provided with a preheating zone 11, primary curing zone 12, secondary curing zone 13 and cooling zone 14 which are divided by a dividing plate 10 within a furnace body 9 having an inlet 7 and outlet 8. Hot air circulation ports from heat source, which are independent of each other are provided at least on the primary and secondary curing zones 12, 13. A first chain conveyor 15 is constituted so that it conveys a mold 1 rotatably sideways. A second chain conveyor 16 gives torque to the mold by engaging with a sprocket wheel 4 of the mold 1. With this construction, curing of resin is performed while the mold 1 which is turned and shifted is being passed through the furnace 6. |
