CONTINUOUS SINTERING FURNACE AND USE THEREOF

摘要

A continuous sintering furnace has an entrance-side deaerating chamber 23 through which trays 22 each with an material 1 to be sintered being mounted thereon may pass, preheating, heating and cooling zones 37, 38 and 39 into which the trays 22 are sequentially fed from the deaerating chamber 23, an exit-side deaerating chamber 26 through which the trays 22 having passed through the cooling zone 39 may pass, a pusher 35 for pushing the tray 22 from the deaerating chamber 23 to the preheating zone 37, a pulley 36 for pulling the tray 22 from the cooling zone 39 to the deaerating chamber 26, an intermediate pulley 43 for pulling the tray 22 from the heating zone 38 to the cooling zone 39, a vertically movable door 28 between the deaerating chamber 23 and the preheating zone 37, a vertically movable intermediate door 41 adjacent to the door 28 and arranged at an upstream end of the preheating zone 37 in the direction of transportation of the trays 22, a vertically movable intermediate door 42 between the heating and cooling zones 38 and 39 and a vertically movable door 29 between the cooling zone 39 and the deaerating chamber 26. With the door 42 being at its lowered position for closing, heat input is suppressed to the cooling zone 39. Movement of the trays 22 in the cooling zone 39 is effected bythe intermediate puller 43 so as to decrease the number of trays 22 to be pushed by the pusher 35.