Automation with Dry-Film Adhesives

A hypothetical, one-grade plywood mill is described, and recommendations are given on log selection, standardized clipping and peeling, defect limitations, green-chain sorting, and layup practices with a dry-film adhesive system. The proposed mill would produce utility or core panels and would feature automatic defect detecting and clipping devices. It would require no sorting for grades at the green chain and the loading and pressing operations could be either standard or automatic. The film glue suggested was a pure phenol-formaldehyde resin supported on a cellulosic carrier and made by Reichhold.

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