| 摘要 |
The continuous carburizing furnace of this invention provides a furnace, a lift mechanism and a plurality of pushers. A furnace has a carburizing zone and a plurality of regions including a first region and a second region at the upstream side of said carburizing zone. The second region and the first region being disposed successively along a direction of conveyance of workpieces loaded upon a tray in this order. The lift mechanism lowers a tray in some region, among the plurality of regions, other than the region most to the upstream side in the direction of conveyance. A plurality of pushers includes a first pusher and a second pusher. The first pusher pushes a tray in said first region to said carburizing zone. The second pusher pushes a tray in said second region to said first region. A plurality of pushers are arranged the lower, the further towards the downstream side in said direction of conveyance is the position at which they push said trays.
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