The appearance should be smooth and defect-free, and the logo should be complete.
One side of the joinery board must be the whole board, and only one flat seam is allowed on the other side.
High-quality joinery boards should be dry, smooth and free from defects, such as knots, repairs and glue leakage. The thickness of the medium plate should be uniform, and there should be no overlapping and separation. The core boards should be spliced tightly, especially the joinery boards should not have dry cracks at both ends.
Vertical placement, the four corners should be straight, and the diagonal error should not exceed 6 mm
The whole set of joinery boards should be completely bonded together.
Secondly, touch the surface of the blockboard with your hands. High-quality blockboard should feel dry, flat and smooth.
Look at the internal quality.
Observing under the light, if it is transparent, it means that the wood strips are not tightly spliced; Pick it up and listen to the sound. A creaking sound indicates that the bonding strength is not good. Lift one end of the joinery board and weigh it. High-quality blockboard should have a sense of integrity and weight.
Of course, this kind of thick induction feels like a good board when it is dry, otherwise it is not dry enough.
Then tap the disk with a sharp-billed instrument to see if there is a big difference in sound. If the sound changes, there is a hole in the plate.
These phenomena will weaken the overall bearing capacity of the plate, and the long-term uneven stress will distort the plate structure and affect the appearance and use effect.
Furthermore, if the blockboard is made of environmentally friendly glue, then the production site will only smell the dry board, and will not hear the pungent formaldehyde smell.
Taizhou Decoration Network reminds that if the blockboard emits a pungent smell, it means that the formaldehyde emission is high, and it is best not to.
Check the quality inside and see what you see in a corner.
Good quality large core board, with serrated tenons between small wooden strips, the gap should not exceed 5 mm