Steel sheet heating method and steel sheet heating apparatus
AssigneeNippon Steel & Sumitomo Metal Corporation
InventorsHiroshi FUKUCHI, Naruhiko NOMURA, Atsushi SETO
Life of this patent
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Abstract
A steel sheet heating method that heats a steel sheet (K) to be pressed before hot press molding includes: bringing the steel sheet into a heating furnace (10) including a heater (15) on an inside surface of the heating furnace in a state where the steel sheet is supported in a vertical direction while an unnecessary portion of the steel sheet that becomes unnecessary after molding is fixedly supported by a support member (30); and performing heating at a prescribed temperature in the heating furnace, then taking the steel sheet out of the heating furnace, and after that cutting and removing the unnecessary portion before hot press molding or during hot press molding.
Claims13
1-8. (canceled)
A steel sheet heating method that heats a steel sheet to be pressed before hot press molding,
- the steel sheet heating method comprising:
- bringing the steel sheet into a heating furnace including a heater on an inside surface of the heating furnace in a state where the steel sheet is supported in a vertical direction while an unnecessary portion of the steel sheet that becomes unnecessary after molding is fixedly supported by a support member;
- and
- performing heating at a prescribed temperature in the heating furnace, then taking the steel sheet out of the heating furnace, and after that removing the unnecessary portion.
A steel sheet heating apparatus that heats a steel sheet to be pressed before hot press molding,
- the steel sheet heating apparatus comprising:
- a heating furnace capable of accommodating the steel sheet in a vertical state;
- and
- a conveyance apparatus that allows the steel sheet to pass through a conveyance path of the heating furnace in a state of being supported in a vertical direction by a support member,
- wherein the heating furnace includes the conveyance path of the steel sheet formed between side walls facing each other and a heater that is provided on at least one surface of the side walls and heats the steel sheet, and
- wherein the conveyance apparatus includes the support member that supports the steel sheet while fixedly supporting an unnecessary portion of the steel sheet that becomes unnecessary after molding and a moving mechanism that moves the support member along a rail provided from above an upstream side of an entrance to above a downstream side of an exit of the heating furnace.
Dependencies are inferred from the claim text.