Importance

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Abstract

A heat treatment furnace may include: a furnace body comprising an entrance, an exit, and a heat treatment space having a temperature-rising space and a temperature-maintained space that are configured to thermally treat a plurality of objects; conveying plates on which the plurality of objects is to be placed; a pusher configured to push the conveying plates in a front direction from the entrance to the exit of the furnace body; and a plurality of heaters extending in an up-down direction and aligned in the front direction in the heat treatment space. Each of the plurality of heaters may include a heating part configured to generate heat. Positions of the heating parts of the plurality of heaters in the up-down direction may vary from the heater closest to the entrance toward the heater closest to the exit.

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First Claim