how to identify the structure of wood

panel furniture is to teach you how to identify the structure of wood?

Wood Ray: panel furniture by countless cells, has same properties of cells together, form of organization. Wood, With trees in the wood into vertical axis of parenchyma cells, constitute a “ray”. Same, in lumber ray three views of the form, ray in a cross-section of radial radial lines (which is the name ray source), its length and width, In a horizontal short -cut diameter, its length and belt height, In a short -cut string linear, its width and height. The width of the ray with tree species, are generally classified into three kinds:! Wide type, such as X-ray sawtooth oak wood, oak, birch, etc. “Narrow type, such as wood of northeast China ash, basswood ray, is extremely narrow wooden rays, such as type of acerola materials and broadleaf timber, birch, Yang ray is wood, etc. In the axles, only the horizontal arrangement. In lumber utilization, it constitutes one of the factors of wood beautiful pattern. Therefore, the width of the tree ray, suitable for furniture, wooden rays. However, is composed by parenchyma cells in the wood and lower strength is fragile, and timber drying often occur along the direction of crack ray, reduce use value.

Pipe hole: in broadleaf timber cross-sections, we often see some of different size holes in radial section, a chord -cut different length of groove, these holes and grooves called “hole”. Pipe hole in the trees grow up with moisture and nutrients transport. Some species began to grow the birth canal holes special bulky, young long pipe is small, the holes in the transverse have obvious difference, namely in an earlier material pipe hole within the rings, a large ring, so called KongCai ring. Some species of holes in cross-section, even no much difference, and dispersed evenly in the ring and scattered in the hole KongCai broadleaf timber pipe size, arrangement and combination, reflect different laws. Understand the rules for identification of wood, it has important significance.

Some species and sapwood aggravate xylem ofiice  furnitureto bark part of shallow color, and cut down the trees, moisture content, says the sapwood, In the center of the trees, aggravate. Aging, woodiness is sapwood aggravate deposited lots of resins, pigments and tannins, etc. The strength and sapwood aggravate there, but almost aggravate the corrosion resistance stronger. Some species have obvious difference and sapwood aggravate, aggravate species. Some species of xylem color, but the center part of moisture content is lesser, says the steady aggravate species. As spruce, fir. Some species of color and moisture content in xylem is consistent, say, this kind of tree species in the sapwood is broadleaf timber. Such as birch, poplars. In the process of making furniture, often use of color characteristics and sapwood aggravate, create beautiful office furniture.

In cross-section ring: color depth differ alternate with coarse woodiness structure, there is a fine of concentric ring shape, rows of these circular called rings. Most species of tree rings approximate circle, a few of the rings is irregular waves. Rings inside, in every part of the year by the spring is in the growth, its lighter color, soft tissue is loose, material, called material (spring) earlier, On the outside part of the growth is late, darker, compact structure, material, called a late autumn XiaCai (,). Due to late early wood structure of different materials, there is a line in the material, the boundary line, to identify whether the tree. In a concentric rings in circular arc, or in a year round section size in parallel bars, cut-side up on a parabola string round the pattern. Mountain or