| 摘要 |
A method of heating lamellae (11) which comprises conveying the lamellae through a tunnel oven (42) in spaced array with their planes generally parallel and approximately perpendicular to the direction of travel, the lamellae being preceded and succeeded by baffle plates or doors (47) which move with the lamellae, lie in planes approximately parallel to the lamellae and have dimensions which approximately match the cross sectional dimensions of the tunnel. The baffles may be attached to racks (13) in which the lamellae are carried but they may be movable through the oven independently of the lamellae. A preferred procedure is as follows: position two doors, A and B, at the entrance end of the oven, move the doors forward with the first door A being releasably held at the exit end and the second door B being releasably held at the entry end of the oven, then introduce a batch of lamellae (11) to the entry end of the oven while moving the second door B through the oven to the exit end and moving the first door A out of the oven; then introduce third and fourth doors C and D to the entry end of the oven and move the third door C through the oven behind the lamellae to the exit end and releasably hold the third door there; and hold the fourth door D at the entry end. |
