ROLLER HEARTH TYPE CONTINUOUS FURNACE

• Main Authors: OTA KAZUFUMI, YOSHIMOTO NARUMI, CHAKI TOSHIO
• Format: Patent
• Language: English
• Published: 11.11.2010
• Subjects: BLASTING; CHEMISTRY; CONVEYING; FURNACES; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; KILNS; LIGHTING; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OPEN SINTERING OR LIKE APPARATUS; OVENS; PACKING; PERFORMING OPERATIONS; PNEUMATIC TUBE CONVEYORS; RETORTS; SHOP CONVEYOR SYSTEMS; STORING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a roller hearth type continuous furnace preventing scratches on a treatment object even if the treatment object meanders or bends. SOLUTION: The roller hearth type continuous furnace 20 includes both right and left sidewalls 11, 12 forming a furnace body, a plurality of columnar conveyance rollers 13 arranged in parallel with each other in a horizontal direction in the furnace body, in fore and aft at the same height, and rotatably supported. Heat treatment is applied to the treatment object P while moving the treatment object P mounted on the conveyance rollers 13 forward by rotation of the conveyance rollers 13. It includes a plurality of columnar guide rollers 27, 28 extending perpendicularly with respect to a fore and aft direction from above the conveyance rollers 13 of both the right and left sidewalls 11, 12 toward between the conveyance rollers 13 and rotatably supported, A diameter D2 of the guide rollers 27, 28 is provided as the same diameter D1 of the conveyance rollers 13, and the guide rollers 27, 28 are rotated at the same rotational speed as the conveyance rollers 13. COPYRIGHT: (C)2011,JPO&INPIT