Process Features

1. Use good pine and eucalyptus whole core boards, and there are no holes in the middle of the blank boards after sawing;

2. The surface coating of the construction plywood is phenolic resin glue with strong waterproof performance, and the core board adopts three ammonia glue (single-layer glue is up to 0.45KG), and layer-by-layer glue is adopted;

3. First cold-pressed and then hot-pressed, and pressed twice, the construction plywood is glued and the structure is stable.

Problems and Prevention

1. Cracks: Reasons: panel cracks, rubber board cracks. Preventive measures: When screening (when selecting boards), pay attention to pick them out, screen non-destructive plastic boards, and arrange them neatly.

2. Overlap: Reason: plastic board, dry board, the filling is too large (the interval is too large (too small). Preventive measures: fill the hole according to a certain size, and cannot exceed the original hole.

3. White leakage: Reason: It is not uniform enough when the red oil is passed once or twice. Preventive measures: During the inspection, manually add red oil.

4. Explosion board: Reason: wet board (plastic board) is not dry enough. Precautions: Inspect wood core boards when shipping.

5. The board surface is rough: Reason: fill the hole, the wood core board knife tail is thinner. Preventive measures: try to choose a flat wood core board.

Parameter