C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 2/22 (2006.01) B05C 1/08 (2006.01) B05D 1/28 (2006.01) C23C 2/04 (2006.01) C23C 2/40 (2006.01)
Patent
CA 2352136
The invention concerns a method for continuously coating at least a metal strip (1) with a crosslinkable polymer fluid film free of non-reactive solvent or diluent and whereof the softening temperature is higher than 50 DEG C. The method consists in continuously unwinding the metal strip (1) on at least a back-up roll (30); forming by forced flow on an applicator roll (20) with deformable surface a layer of said crosslinkable polymer; forming on the applicator roll (20) the crosslinkable polymer film and transferring said film from the applicator roll onto the metal strip. The invention also concerns a coating device for implementing said method.
L'invention a pour objet un procédé de revêtement en continu d'au moins une bande métallique (1) par un film fluide en polymère réticulable exempt de solvant ou de diluant non réactif et dont la température de ramollissement est supérieure à 50 °C. Le procédé consiste à faire défiler en continu la bande métallique (1) sur au moins un cylindre de support (3), à former par écoulement forcé sur un cylindre applicateur (20) de surface déformable une nappe dudit polymère réticulable, à former sur le cylindre applicateur (20) le film en polymère réticulable et à transférer ce film du cylindre applicateur sur la bande métallique. L'invention a également pour objet un dispositif de revêtement pour la mise en oeuvre de ce procédé.
Bonnebat Claude
Jenny Frederic
Soas Thierry
Smart & Biggar
Sollac
Usinor
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