| 摘要 |
<p>ABSTRACT A Process for Manufacture of Defect-Less Plywood A process for manufacturing defect less plywood comprises of: - Preparation of logs; - peeling of logs into veneer; - screening of defect less veneer; - repair of minor defects, if any, in veneer; - tenderizing by slit cutting into veneer surface; - drying of veneer; - conditioning of veneer for 24 hours ; - pre setting of small size veneer into actual size of the plywood to be prepared; - repair of natural defects found in veneer during pre setting; - gluing and assembly for making the core layer; - preparation of the core layer by cold pressing; - repair of the cold pressed core layer; - hot pressing of the repaired core layer; - stabilizing of the core layer for 12 hours; - trimming of four sides of core layer with margin; - calibration for uniform thickness ; - preparation of defect free surface of core layer; - glue application on the core layer; - overlaying the core layer with face veneer; - hot pressing of the combination of core layer and face veneer; - conditioning of plywood; - trimming to final size; - sanding of surface; - marking and dispatch</p> |
