FIELD: process engineering.
SUBSTANCE: invention relates to woodwork, particularly to production of plywood and plywood boards. Veneer sheet surface is processed in two steps, veneer sheet is heated after first step, veneer sheet surface is processed at second step in applying glue layer containing phenol-formaldehyde glue. Veneer sheets are stacked and compressed to perform hot pressing of the stack. At first step, veneer sheet surface is processed by water solution of arabinogalactan, heated to complete drying with deposition of the latter. Glued is applied on veneer sheet surface in amount of 110-130 g/m2. Said arabinogalactan is applied on veneer sheet surface in amount of 5-10 g/m2 in terms of dry substances.
EFFECT: simplified production, lower consumption of glue.
4 cl
| Title | Year | Author | Number |
|---|---|---|---|
| SYNTHETIC GLUE FOR MANUFACTURE OF PLYWOOD, PLYWOOD, AND METHOD FOR MANUFACTURE THEREOF | 2020 |
|
RU2757429C1 |
| METHOD FOR MANUFACTURE OF PASTED LAMINATED WOOD MATERIALS FROM VENEER | 2002 |
|
RU2222425C2 |
| METHOD FOR LEAD GLUEING | 0 |
|
SU1646865A1 |
| METHOD OF PRODUCTION OF SHAPED ARTICLES BASED ON WOODEN VENEER | 1997 |
|
RU2122942C1 |
| LOW-TOXIC ADHESIVE COMPOSITION FOR VENEER PRODUCTION | 2010 |
|
RU2429267C1 |
| PLYWOOD PRODUCTION METHOD | 1995 |
|
RU2080247C1 |
| METHOD OF PRODUCING LARGE-SIZE PLYWOOD | 2000 |
|
RU2185957C1 |
| METHOD OF MANUFACTURING FIRE-PROOF PLYWOOD | 1995 |
|
RU2080246C1 |
| GENERAL PURPOSE PLYWOOD CONSTRUCTION | 2021 |
|
RU2762418C1 |
| FILLING PASTE FOR COVERING VENEER DEFECTS AND METHOD OF PRODUCING PLYWOOD USING FILLING PASTE | 2019 |
|
RU2708582C1 |
