| 摘要 |
PURPOSE:To provide method, with which neither crack nor fracture develops in the case of effecting cold drawing or bending of a metallic laminate cladded with polyamide resin. CONSTITUTION:In cold working such as drawing, bending or the like of a metallic laminate, which is prepared by covering one side or both sides of metal sheet with polyamide resin layer, cold working is carried out after the polyamide resin layer is treated so as to absorb water in advance. As a result, since neither crack nor fracture develops in the cladded resin layer at cold working, the laminate concerned can be used for manufacturing electronic part, which requires various insulation properties, and various containers, which require appearance characteristics. |
