Patent ID: 11655515

Abstract:
The present invention provides a far-infrared radiation heating furnace for steel sheets for hot stamping configured to inhibit thermal deformation of the furnace body and furnace body parts. A far-infrared radiation heating furnace (10) includes heating units (13-1) to (13-6), a ceiling unit (19), and a furnace body frame (12) made of steel, the heating units including: blocks made of a thermal insulation material, the blocks being disposed around horizontal planes of spaces for accommodating the steel sheets for hot stamping; and far-infrared radiation heaters positioned above and below the steel sheets for hot stamping to heat the steel sheets for hot stamping, the furnace body frame being disposed around the heating units and the ceiling unit. The furnace body frame includes spacers (17-1) to (17-7) that space the heating units and the ceiling unit apart from the furnace body frame and support them.