发明名称 Method of forming corrugated panel
摘要 A corrugated panel in which at least the central corrugated sheet is formed from an elastically deformable material such as polyethylene synthetic plastic or spring steel is disposed and secured between a pair of cover sheets. The method of forming the panel includes stretching out a first of the cover sheets and thereafter attaching the ends of the sheet to be corrugated to the first sheet while maintaining the spacing between the remainder of the sheet. This forms a half sinusoidal shape from the sheet to be corrugated. A compressive force is thereafter applied to the sheet to be corrugated which forms it into a number of corrugations having ridges and furrows. The furrows are bonded to the base sheet and a third sheet is positioned on and bonded to the ridges of the corrugated sheet.
申请公布号 US4708757(A) 申请公布日期 1987.11.24
申请号 US19860887448 申请日期 1986.07.21
申请人 GUTHRIE, WALKER L. 发明人 GUTHRIE, WALKER L.
分类号 B32B37/14;(IPC1-7):B32B31/00 主分类号 B32B37/14
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