To enhance resin close adhesiveness by introducing a metal strip into the nip between a pair of laminating rolls of which the lower parts are immersed in cooling water to supply a resin to both surfaces of the metal strip under pressure to bond the same to the metal strip and cooling a resin film laminated metal strip while jetting cooling water to the surface of the resin film laminated metal strip in the cooling water on the outlet side of the laminating rolls to cool the same.
A steel strip 1 (steel panel) is preheated to 260-300°C and introduced into the, nip of laminating rolls 3, 3a of which the lower parts are immersed in cooling water 2 and, at the same time, resin films 4, 4a prepeated to 100-200°C are supplied to the upper and rear surfaces of the steel strip 1 between the laminating rolls 3,3a to be bonded and laminated to the steel strip 1 under pressure by the laminating rolls 3, 3a to obtain a resin film laminated surface-treated steel strip 1a. This strip 1a is immersed in the cooling water 2 immediately after the outlet side of the laminating rolls 3, 3a to be quenched and cooling water 2a is jetted to both surfaces of the resin laminated surface- treated steel strip 1a in the cooling water 2 on the outlet side of the laminating rolls 3, 3a from nozzles 5, 5a to accelerate cooling.
| JP3029529 | POLYCARBONATE RESIN COATED METAL PANEL |
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KIKUCHI HIDEFUMI
ITO TSUYOSHI
INOUE MAMORU
MURATA AKIHIRO
