| 摘要 |
A heating zone (4), a cooling zone (5), and a quenching zone (6) are provided inside a linear furnace body in this order, the heating zone (4), the cooling zone (5), and the quenching zone (6) being separated by partition doors (2, 3). Conveying means of a work (W) is a tray pusher (7) in the heating zone (4) and conveying means of the work (W) is roller hearths (8, 9) in the cooling zone (5) and the quenching zone (6), the roller hearths (8, 9) being independently driven. <IMAGE> |
