Notes On the Manufacture of Plywood Rev September 1922
Notes On the Manufacture of Plywood Rev September 1922
Forest Products Laboratory Us
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The use of constant tempera- ture and humidity conditions which will dry the panels to a definite moisture content makes the drying simple, safe, and easy. For panels, of three and five-ply veneer or of veneer faces and cros standing and a thick core and glued at a low moisture content, drying at 120 degrees Fahrenheit and the necessary maximum humidity may "be accomplished in from a few hours to over night, Temperatures above 120 degrees Fahrenheit have the advantage of decreasing the drying t...ime but are more liable to lowsr the quality of the panel "by inducing checking, warping, and open joints, Panels dried from a high to an excessively low moisture content are very liable to warp and should be dried rela- tively slowly. L26 543 -7- Gluing; "by a Dry Glue Proc esjs. In connection witli aircraft work a process of laying veneer with dry blodd glue was worked out at the Tores t Products Laboratory, " It consists of making an . Adhesive by coating a tissue paper with "blood albumin glue, allowing it to dry, and using the coated paper as the glue .
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