Metal plate material hot press molding apparatus and hot...

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 22/20 (2006.01) B21D 24/00 (2006.01) B21D 37/16 (2006.01) B30B 15/34 (2006.01)

Patent

CA 2540737

In a metal plate material hot molding apparatus for press molding a heated metal plate material (1), supply piping (6) for a cooling medium is provided in a mold (2, 3), and ejection holes (4) penetrating from a molding surface of the mold (2, 3) to the supply piping (6) are provided. Discharge piping (7) for the cooling medium may be provided in the mold (2, 3), and discharge holes (5) penetrating from the molding surface of the mold (2, 3) to the discharge piping (7) may be provided, and further, cooling piping (8) may be provided. Molding is performed while the cooling medium is ejected from the ejection holes (4) to a gap between the metal plate material (1) and the mold (2, 3).

L'invention concerne un appareil de formage par compression à chaud d'une plaque de métal (1) chauffée, qui présente une tuyauterie d'alimentation (6), qui sert à l'alimentation en fluide de refroidissement et est placée dans la partie latérale d'une matrice métallique (2, 3), ainsi qu'un trou d'éjection (4) qui s'étend de la surface de formage de la matrice (2, 3) jusqu'à la tuyauterie d'alimentation (6). Dans une variante, la tuyauterie de décharge (7) amenant le fluide de refroidissement est placée à l'intérieur de la matrice (2, 3), et un trou de décharge (5) s'étend de la surface de formage de la matrice (2, 3) jusqu'à la tuyauterie de décharge (7), ledit appareil pouvant en outre comprendre une tuyauterie de refroidissement (8). Le fluide de refroidissement est éjecté du trou d'éjection (4) vers un espace compris entre la plaque métallique (1) et la matrice (2, 3), et le formage est exécuté.

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