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When purchasing wood-based panels, it's essential to understand their raw materials to gain a clearer understanding of their properties. Next, let's learn about wood-based panels, starting with the wood itself.
1. What is the structure of tree bark?
To understand wood, one must first understand the composition of the trunk and bark. The trunk is the most basic structure of a tree. If observed in a cross-section, its structure includes bark, cambium, xylem, and pith. Bark is the outermost layer of the trunk; all tissue outside the cambium can be called bark. Bark can be further divided into outer bark, periderm, and inner bark. The cambium is mainly located between the phloem and xylem of the trunk. It is a narrow layer with meristematic capacity, capable of producing mother cells and continuously generating daughter cells. The xylem is located between the cambium and pith; it is the most economically valuable part of the trunk and the most important part of the wood. The pith is located in the center of the trunk, tightly surrounded by xylem. It is a thin-walled tissue that primarily transports and stores nutrients for the tree, maintaining its healthy growth.
2. What is the structure of wood?
The structure of wood is quite interesting and can be simply divided into three sections: cross section, radial section, and tangential section. Cutting wood according to different sections results in different grain patterns on the flooring. The cross section is the part perpendicular to the main axis of the trunk. Except for the annual rings, the grain characteristics of the trunk can be understood through this section. The cross section is the best way to judge wood quality because it is very hard, wear-resistant, and suitable for paving blocks. The radial section is parallel to the main axis of the trunk and passes through the pith. Boards made from this section shrink less and are less prone to warping, making them suitable for making rulers or instrument soundboards. The tangential section is also parallel to the main axis of the trunk, but does not pass through the pith or tangent to the annual rings. It is a tangent to one annual ring and a tangential line to another. The physical property of wood is that its integrity is not affected, and its chemical composition remains unchanged.
The above is a summary of information about selecting and manufacturing wood-based panels. China Wood-Based Panel Network will guide you through understanding wood-related topics. We hope this information is helpful.