A work roll for and a method of producing metal foil

Details A work roll for and a method of producing metal foil A work roll for and a method of producing metal foil

B - Operations, Transporting

21

B

B21B 1/40 (2006.01) B21B 1/22 (2006.01) B21B 27/00 (2006.01) B21B 27/03 (2006.01) F16C 13/00 (2006.01) B21B 1/28 (2006.01) B21B 1/36 (2006.01) B21B 1/38 (2006.01) B21B 3/00 (2006.01) B21B 13/02 (2006.01) B21B 27/02 (2006.01)

Patent

CA 2412933

Improved work roll, particularly for use in closed gap rolling, has a composite structure comprising a cylindrical outer layer (14) made of steel, and providing the work surface of the roll, separated from a steel core (12) by an intermediate layer (13) of material such as aluminium or copper having a lower Young's modulus than that of the layer (14). Provided that the dimensions of the outer layer (14) and intermediate layer (13) are chosen appropriately, this combination can realise a work roll having an effective Young's modulus which is lower than that of steel whilst at the same time retaining the advantages of a steel work surface and enabling higher rolling speeds.

L'invention concerne un cylindre de travail amélioré, destiné notamment à être utilisé dans le cadre du laminage en espace fermé, qui comprend une structure composite constituée d'une couche extérieure cylindrique (14) en acier, laquelle structure constitue la surface de travail du cylindre, séparée de l'âme en acier (12) par une couche intermédiaire (13) d'un matériau, tel que l'aluminium ou le cuivre, qui a un module de Young inférieur à celui de la couche (14). Si l'on choisit les dimensions de la couche extérieure (14) et de la couche intermédiaire (13) de façon appropriée, cet ensemble permet la réalisation d'un cylindre de travail caractérisé par un module de Young effectif inférieur à celui de l'acier, mais qui possède toutefois les mêmes avantages qu'une surface de travail en acier et qui tolère les vitesses de laminage élevées.

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