LAMINATE METAL PLATE AND LAMINATING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a laminate metal plate which reduces entrained bubbles which can cause defects such as film peeling in carrying out a severe forming work to a laminate metal band, and a high-speed laminating technique. SOLUTION: The resin film laminate metal plate in which a metal plate surface projection area of the largest bubble present on a resin-metal plate boundary face is 300μm2or less is provided. Further, in a method of thermal-laminating a resin film on a metal band at speeds of 150 m/min or more, after the resin film is thermal-laminated on the metal band in an atmosphere containing a gas having a molecular weight of less than 45 except nitrogen, for example, a carbon dioxide gas, helium gas, or oxygen gas at an amount of 90 vol% or more, a surface pressure of≥1×106Pa and≤6×107Pa is given by a roll within 1.5 s for≥0.002 s and≤0.04 s. COPYRIGHT: (C)2007,JPO&INPIT