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1. 发明申请

US20210254894A1 HEATING FURNACE 有权
公开(公告)号：US20210254894A1
公开(公告)日：2021-08-19
申请号：US17275876
申请日：2019-04-11
申请人： NIPPON STEEL TEXENG. CO., LTD.
发明人： Shinjiro KUWAYAMA , Tetsuya IRIE
IPC分类号： F27D11/02 , F27B17/00
摘要： This heating furnace includes a housing having a pair of side walls, a workpiece support material configured to support a workpiece having a flat plate shape in a horizontal posture between the pair of side walls, a planar heater configured to heat the workpiece supported by the workpiece support material from above or below, a power feeding device configured to feed power to the planar heater, and a heater support material configured to support the planar heater in a horizontal posture. The planar heater has a plurality of heating bodies disposed side by side in a conveyance direction and in a left-right direction orthogonal to the conveyance direction in a plan view, the plurality of heating bodies each have a heating wire and a sintered body configured to accommodate the heating wire, include two or more kinds of heating bodies having different dimensions or shapes, and include an intermediate heating body alongside which other heating bodies are disposed at both end portions in the left-right direction, and the power feeding device has a feeding unit configured to feed power to each of the heating bodies from the side wall.

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