Metal deforming – By deflecting successively-presented portions of work during... – By use of deflectors arranged to bend work longitudinally of...
Patent
1983-07-27
1985-07-16
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of deflectors arranged to bend work longitudinally of...
493459, 427172, 264280, 29829, 72160, B21D 100, B21D 102
Patent
active
045288330
ABSTRACT:
A method for removal of curling of a circuit printable flexible substrate comprising a metal foil and a film layer of an aromatic polyamideimide or an aromatic polyimide formed by coating on the said metal foil a solution of an aromatic polyamideimide, an aromatic polyimide precursor or an aromatic polyimide, and drying the coated solution layer to setting, whose curling is produced to direct the metal foil surface to face outside, which comprises sliding under tension the curled circuit printable flexible substrate on a curved surface of a bar having a curvature radius of 0.5-25 mm, at which the substrate is turned back at a turning angle of not less than 90.degree., placing the metal foil layer in contact with the bar, at a temperature of not higher than 80.degree. C. A method employing two such bars is also disclosed.
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Inaike Toshihiro
Inoue Toshihiro
Ushimi Katsuhiko
Crane Daniel C.
Ube Industries Ltd.
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