Method of manufacturing powder metal plates

B - Operations – Transporting – 22 – F

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B22F 3/16 (2006.01) B22F 3/18 (2006.01)

Patent

CA 2761644

A method of manufacturing powder metal plates comprising feeding a predetermined mass of metal powder onto a moving tape (101), restricting the metal powder by surrounding the metal powder with vibrating boundary- walls (201, 202) extending parallel to the direction of movement of the tape, rolling the metal powder at an ambient temperature to form a green compact strip (GS), continuously sintering the green compact strip in a furnace (400), forming the green compact strip to a net shape part (NS) while in the furnace, and cooling the net shape part in a non- oxidizing environment (404) at a temperature in excess of 1000 degrees Celsius.

L'invention porte sur un procédé de fabrication de plaques métalliques à base de poudre, lequel procédé comprend la délivrance d'une masse prédéterminée de poudre métallique sur une bande mobile (101), la restriction de la poudre métallique par le fait d'entourer la poudre métallique avec des parois de limitation vibrantes (201, 202) s'étendant parallèlement à la direction de déplacement de la bande, laminage de la poudre métallique à une température ambiante de façon à former une bande compacte crue (GS), le frittage en continue de la bande compacte crue dans un four (400), la formation de la bande compacte crue sous la forme d'une partie de forme nette (NS) lorsqu'elle se trouve dans le four, et le refroidissement de la partie de forme nette dans un environnement non oxydant (404) à une température supérieure à 1 000 degrés Celsius.

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