Quality judgment of particle board

1. From the appearance point of view, look at the size and shape of sawdust particles in the center of the cross section. The length is generally 5-10MM. The length is too long, the structure is loose, and the deformation resistance is too short. The so-called static bending strength does not meet the standard;

2. The moisture resistance of the wood-based panel depends on its density and moisture-proof agent. The moisture resistance in immersion in water is not good. Moisture-proof refers to moisture-proof, not waterproof, so it should be distinguished in the future use. The northern area, including The moisture content of plates in North China, Northwest and Northeast is generally controlled at 6-8%; the southern area including coastal areas should be controlled at 8-10%, otherwise the plates are easy to absorb moisture and deform.

3. In terms of surface smoothness and smoothness, it usually goes through 200 # sandpaper when leaving the factory. In general, it is better to be fine up and down, but in some cases, such as sticking fire board, it is too fine. Hang glue.