China board trading network news:
Daxin board processing technology is divided into two kinds of fight and hand fight.
The manual spelling is to artificially set the wood strips into the splint. The wood strips are subjected to a smaller extrusion force, uneven splicing, large gaps, poor nail gripping force, and can not be sawed and processed, and are only suitable for partially refurbished subprojects. Such as doing solid wood floor mats, etc. The machine-suppressed panels are subjected to a large squeezing force, with minimal gaps, smooth splicing, uniform bearing weight, and long-term use. The compact structure is not easily deformed.
Different materials, different quality, Daxinban according to the pros and cons of the material and the texture of the surface material is divided into "excellent products", "first-class products" and "qualified products." Some companies also classify plate grades as Grade A, Double A, and Grade A. However, this is only a corporate behavior that is inconsistent with national standards. This type of labeling is currently not allowed on the market.
There are many species of large core board species, such as poplar, birch, pine, paulownia, etc., of which poplar, birch as the best, dense texture, wood is not soft not hard, strong nail grip, not easily deformed, and Paulownia The texture of the material is light, soft, and absorbs large moisture. It is difficult to hold nails because of the poor grip of nails. In the course of use, when the water is evaporated, the sheets are easily deformed by dry cracking. The hard wood is hard, difficult to suppress, the splicing structure is not good, the nail holding force is poor, and the deformation coefficient is large.
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