1. Trees: According to the shape of the leaves, they can be divided into: coniferous and broad-leaved;
Needles: commonly known as cork and softwood;
Features: straight texture, soft wood, easy processing, small deformation; for example: North: Korean pine, larch
South: fir, cypress, spruce
Broadleaf: commonly known as hardwood and hardwood;
Features: beautiful texture, hard wood, high density, easy to deform, difficult to process (all veneers are made of the advantages of its texture)
Hardwood is divided into:
Hard miscellaneous wood: the miscellaneous wood in hardwood, its hardness is lower than that of hardwood; for example: Fraxinus mandshurica, basswood
Cherry wood: not real cherry wood, in fact birch wood, its texture is close to cherry wood (note: real cherry wood is not a good material, nor can it be used for decoration)
Note: Furniture is different from decoration. The wood used for furniture is generally hardwood with beautiful texture, while the real good hardwood has a low rate and high cost, and belongs to the high-end category; hardwood is generally used in the Ming and Qing dynasties;
Second, wood products
1. Plywood (commonly known as: three PCT, five PCT or three plywood, five plywood)
Southern name: three plywood, five plywood. The official name of the company: three-centimeter board, five-centimeter board (thickness in mm)
Production: Rotary cut from the log into several layers of skin, and then layer the cut several layers together;
(1) Features:
A. Save wood in use;
B. Cutting the wood into thin plates destroys its internal stress, and then passes through the lamination process to make the internal stress smaller, so it is not easy to bend;
2. Hard paper fiberboard (less used in decoration)
3. Wood wool board (rarely used)
Production: Use wood scraps to plan wood wool, add cement and glass glue to press it;
Features: heat preservation, dust collection
Note: The client will consult some architects before the decoration. If wood wool board is mentioned, please note that the wood wool board has been eliminated)
4. Veneer shredded wood board (big core board)
(1) Fabrication: Artificial board made of unfinished wood with glue, laminated and veneer; its core is made of cork (cork core is better), which is not easy to deform and easy to process; the single material the better; The veneer is thicker than the veneer of the veneer
(2) Thickness: uniform; 18mm is the best;
(3) Seam: AAA: board seam not more than 2mm; AA: board seam not more than 3mm;
Note: If the customer asks whether it can be guaranteed to be less than 2mm, we can only answer that if the customer does not meet the standard, we guarantee to replace it;
(4) Appearance: smooth, uniform thickness, good finish;
5. Medium-density board: The waste material is broken into broken foam, which is made by adding glue and high pressure. The processing technology is complicated; because it is broken into broken foam, its stress is small, and there is a layer of wax on the surface, so it is not afraid Water; but the section of the board is particularly afraid of water.
6. Particleboard:
The wood waste and branches are broken into slag, and then glued and pressed; the process is relatively simple; when the wood is broken into broken slag, the stress still exists, so it is deformed; because a large amount of glue needs to be added during the processing, it is easy to be afraid Water, easy to become damp; (not used by the company)
7. Decorative panel:
(Its various temperaments and various styles are different. Don't let everyone rush into it. Just add design and it will become a special style and personality. For example: "a piece of beech in the whole country")
The veneer on the surface is hardwood with beautiful texture; its quality is related to the thickness; generally it is 3mm, and the skin is very thin, and it is easy to crack; the imported one is 3.6mm, but its price is high;
Different veneers have different colors and textures, and their effects are also different; Note: Generally, wood has brown eyes (high-grade wood has small brown eyes), and light-colored wood should not be used in large areas, such as maple, White rafters, white beech, etc.), the overlapping points of knots and textures can easily cause the effect of dirty spots, so when using it, it should be used in contrast with dark wood; the more high-end, the larger the brown eyes, the easier the coloring.
Three, teak
Thai teak: teak produced in Thailand (divided into pattern, straight grain, black thread straight grain)
Beautiful teak: the texture is dull, use with caution;
Golden teak: use with caution;
Oak: very similar to Quliu;
Beech:
Walnut:
Cherry wood: It is not a real cherry wood, and it is not a timber; it is actually birch (birch, both in the south and the north) used on the ground; <but I don't know what is in the veneer>.
Rosewood: also known as rosewood; it is not used much in the finishing industry;
Note: When choosing high-grade wood, the darker, more uniform, and clearer the black line is the best; when the customer is buying, they should inform the customer that what they usually buy is not as good as the model;
Four, wooden floor
1. High-strength composite board: wear-resistant, impact-resistant, relatively cheap;
2. Solid wood floor: It is made directly from mined wood. The upper layer is hardwood, and the lower two layers are solid wood, which is easy to shrink and deform; but it feels good and is noble; usually the upper layer is painted.
3. Plain wood floor: that is, without paint, high hardness, bright, and good leveling performance; it is easy to crack when dried by the earth kiln method, and the quality cannot be guaranteed;
4. Solid wood composite floor: The method is similar to that of the large core board, with broken wood in the middle, which has natural texture but poor hardness;
Five, wood indicators
1. Moisture content: The state stipulates that the moisture content of wood is 15%;
2. Fiber saturation point: the highest saturation point is 30%;
3. Anti-deformation:
(1) Reduce the moisture content of wood;
(2) The humidity in the air is connected to the brown eyes, and the brown eyes should be covered with paint on the surface of the wood to prevent deformation;
(3) Drying: use drying method;
A. Relative drying: earth kiln method; using the heat of the smoke to increase the indoor temperature and reduce the moisture content of the wood; disadvantages: if the temperature is not high, the cells still exist and cannot be completely dried; the complete drying is probably 20-30 days;
B. Real drying: steam and infrared drying;
Features: It can kill the cells in the wood and suck out the resin, making it difficult to absorb external water, but its yield rate is low, so the cost is very high;
4. Anticorrosion:
(1) The reduction of moisture content is related to the deformation of wood; when the moisture content is less than 18%, wood-rot fungi are not easy to survive;
(2) Ventilation;
(3) Add preservatives;
