| 摘要 |
FIELD: wood-working industry; production of laminated materials. SUBSTANCE: the offered material is glued of three sheets of birch veneer, one sheet of decorative paper impregnated with MP resin, one sheet of protective film (overlay paper impregnated with MP resin), one sheet of kraft paper impregnated with phenol-formaldehyde resin, and five sheets of Bakelite film used as glue layers. Reduced after pressing with use of aluminum spacers is material with uniform dull surface with no defects caused usually by lines on surface of aluminum spacers, defects of peeling on veneer sheet located under decorative coating and insufficient pressing of material. EFFECT: higher efficiency. 3 cl, 1 dwg |
