Blockboard, also known as Daxinban, is one of the main varieties of wood-based panels for decoration. In the production process, the blockboard will have problems such as excessive formaldehyde emission, unsatisfied transverse static bending strength, unqualified product moisture content, and low bonding strength. Therefore, when purchasing, it must be carefully assessed.
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1. Look at the appearance. The appearance should be smooth and flawless, and the logo should be complete. One side of the blockboard must be a whole board, and only one seam is allowed on the other side. The quality blockboard panel has no defects, such as no dead knots, digging, leaking, etc.; the thickness of the middle plate is uniform, there is no overlap, from the seam phenomenon; the splicing of the core board is tight, in particular, the ends of the block board cannot have dry crack phenomenon. . When erected, the corners should be straight and the diagonal error should not exceed 6 mm. Touch the surface with your hand. High-quality blockboard should be dry and smooth.
2. Look at the intrinsic quality. Observe the bright light, such as the white note that the splicing of the sticks is not tight enough; when you hear the sound when you pick up, there is a buzzing sound to indicate that the gluing strength is not good; raise the end of a blockboard, squeak, the high-quality blockboard should have a Kind of overall sense, heavy feeling. Tap on the surface of the plate with a sharp-nosed instrument to see if the sound is very different. If the sound changes, there is a hollow inside the plate. These phenomena will reduce the overall bearing capacity of the plate. Uneven stress will cause the plate structure to be distorted and deformed, affecting the appearance and the effect of use.
In addition, the inspection of the quality of the inside saw a corner, the quality of the large core board, which among the small wooden strips, there are zigzag-shaped mouth meet, the gap can not exceed 5 mm.
3. Look at the formaldehyde content. If the blockboard is made of eco-friendly glue, only the dried wood smells, and the smell of formaldehyde is not smelling. If the blockboard emits a pungent odor, it means that the formaldehyde emission is high and it is best not to purchase it.
4. One-time purchase. When purchasing the panel, you should try to purchase all the panels at the same time to avoid the difference in lines and color on the same accessories.
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