C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 9/56 (2006.01) C21D 9/60 (2006.01) C21D 9/64 (2006.01)
Patent
CA 2065316
Process and device (1) for the heat treatment of at least one metal wire (4) using capstans (2, 3) characterised by the following features: a) the wire (4) is brought around at least two capstans (2, 3) which conduct the heat and which include recesses (11). The wire (4) is reeved and crossed in said recesses (11), the width of the recesses (11) being slightly greater than that of the wire (4); b) the capstans (2, 3) are heated or cooled by means of at least one gas (27), which passes between the capstans and a part which is in contact with a heat exchanging fluid; c) the thickness of the gas layer is chosen according to the heat treatment to be applied. Installations for the heat treatment of metal wires (4) include at least one device (1), metal wires (4) treated by the process and/or the device (1), and/or the installations according to the invention, as well as items reinforced by said wires (4), in particular tyre treads.
2065316 9104345 PCTABS00104 Procédé et dispositif (1) permettant de traiter thermiquement au moins un fil métallique (4) à l'aide de cabestans (2, 3) caractérisés par les points suivants: a) on fait passer le fil (4) sur au moins deux cabestans (2, 3) conduisant la chaleur comportant des gorges (11), le fil (4) étant mouflé croisé dans ces gorges (11), la largeur des gorges (11) étant légèrement supérieure à celle du fil (4); b) on chauffe ou on refroidit les cabestans (2, 3) par l'intermédiaire d'au moins un gaz (27), disposé entre les cabestans et une pièce qui est au contact d'un fluide caloporteur. c) on choisit l'épaisseur de la couche de gaz en fonction du traitement thermique à effectuer. Installations de traitement thermique de fils métalliques (4) comportant au moins un dispositif (1); fils métalliques (4) traités avec le procédé et/ou le dispositif (1) et/ou les installations conformes à l'invention; articles renforcés par ces fils (4) de tels articles étant notamment des enveloppes de pneumatiques.
Compagnie Generale Des Etablissements Michelin - Michelin & Cie
Robic
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