China board trading network news:
The plywood is made of boiled and softened logs, and is peeled into large sheets. Then the wood fibers are laid perpendicular to each other, bonded with a good water-resistance synthetic resin glue, and then pressed, dried, sawn, and surface-refined. Plate. The number of layers is odd, generally 3-13 layers, which are called plywood, pentane, etc. The types of trees used to make plywood are eucalyptus, birch, ash, eucalyptus, sapwood, and eucalyptus.
The fiberboard is a plate made by crushing, soaking, grinding wood wastes such as bark, shavings, and branches into wood pulp, and then press-forming and drying. Due to different temperature and pressure during molding, it can be divided into three types: hard, semi-rigid, and soft.
Chipboard is a sheet made by pressing wood shavings or wood fiber material with or without glue. Particleboard density is small, uniform material, but easy to absorb moisture, low strength.
The blockboard uses the corner waste generated during the wood processing and is a man-made board that is shaped, planed, glued, spliced, and veneered. The board core is generally made of fully dried short wooden strips with a single layer of thin wood or plywood. The blockboard is not only an effective measure for the comprehensive utilization of wood, but also has a uniform structure, a stable dimension, a large size, and a large thickness. In addition to surface decoration, it can also serve as structural material.
Other commentary versions and emerging processes on the man-made board production process: The raw materials used for the man-made board, except for plywood, are logs, most of which are from harvesting and processing residues, and small diameter materials (diameter below 8 cm). Pieces, strips, needles, and granular materials made by crushing or chipping and then shredding can be used for particleboard manufacturing. The chips are separated by fibers and used for fiberboard manufacturing. In this way, the wood utilization rate can be increased by 20 to 25% compared with the traditional utilization mode. In the 1970s, attention was paid to the use of bark and sawdust as artificial board raw materials, but the bark could only be used in the middle layer of the particle board, and the amount should not exceed 8%, otherwise it would reduce the product strength. In addition, non-wood materials have also received increasing attention. In addition to bagasse, hemp stalks, etc., which have long been used in the production of wood-based panels, they have been extended to a variety of plant stems and seed shells.
The above information, relevant Baoyuan plate supply information, plate purchase, etc. Please pay attention to the Chinese plate trading network
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