Red oak, white oak, rubber wood, what are the differences in these kinds of furniture materials?
Red oak, white oak, rubber wood are common materials for solid wood furniture. They differ significantly in plant classification, wood microstructure and use. In general, red oak and white oak are horizontally contrasted in performance and price. , red oak furniture>white oak furniture>rubber wood furniture. When purchasing solid wood furniture, only by fully understanding the detailed differences between the three kinds of wood, will not be "fishing mixed".
In the classification of plants, oak belongs to the genus Alder. Foreign countries usually divide oak into two categories: Red Oak and White Oak. The national standard GB / T 16734-1997 "China's main wood name" divides oak into paralyzed (red oak) and enamel ( White oak) two categories. Oaks are mainly distributed in North America and Asia and Europe. In the United States, oak is the most abundant broad-leaved tree species in the United States, accounting for about 20% of the country's broad-leaved wood billets (about 4% for red oak); Europe does not produce red oak, only white oak; domestic oak gaps need to be large The United States, Germany and other countries import.
1, Red oak
Red oak is a precious tree species, its mechanical performance index far exceeds that of rubber wood, and it is better than white oak, while domestic red oak has replaced foreign red oak. In the past, Red Oak covered a wide range of fields such as construction, railway, and national defense. As the variety of materials became more and more precious, red oak can only be made of high-grade solid wood furniture or wood-based panels. Domestic red oak has thicker bark and its economic value is higher than that of wood itself. Cork made from this bark is a good material for insulation and impact resistance.
Red oak usually has a straight texture, a thick structure, heavy and hard, medium or large dry shrinkage, medium to high strength, and high impact strength. In terms of structure, the sapwood of red oak is dark yellow brown or grayish brown, which is distinct from the heartwood. The heartwood is light reddish brown; the wood is shiny, no special smell, the growth wheel is very obvious; the wood ray is slightly dense. The surface of the string cut is brown spindle-shaped, and the broad-cut ray pattern of the diameter cut surface is obvious; the red oak belongs to the ring-shaped hole material, the width is uniform, the early material tube hole is usually too large, a few through, even visible to the naked eye, the late material tube hole is slightly smaller, the diameter Column.
2, White oak
White oak is also a precious tree species. Its mechanical properties are much lower than rubber wood, second only to red oak. The application field is basically the same as that of red oak. Very resistant to corrosion, it is most suitable for making wine barrels. After a selection of white oak, it can be made into a fine wine barrel. Red wine, whiskey, brandy and other wines are stored in oak barrels to create a unique aroma and flavor.
In terms of structure, the sapwood of white oak is light in color, the heartwood is light chestnut, the white oak is straight, the structure is slightly thick and uneven, the wood is hard, the weight is medium to heavy, the shrinkage is medium or large, the strength is medium to high, and the impact strength is high. . Brown or chestnut brown, the thickness of the invaded body in the heartwood; the wood ray is wide but scattered, the cross-cut surface is obvious, the distribution is very uniform, the short vertical line is presented on the chord-cut surface, and the wide ray pattern is on the diameter of the cut surface. Very obvious (silver light texture); white oak is a ring-shaped hole material, the early material tube hole is visible under the naked eye, and the late material tube hole is visible under the magnifying glass, which is flaming.
3, Rubber wood
Rubber wood belongs to the genus of rubber trees in the classification of plants. It has milk (ie natural rubber) in the skin. It is native to the Amazon River in Brazil and is planted in tropical Southeast Asia. It is equally abundant in Yunnan, Guangdong, Guangxi, Hainan and Fujian every year. Introduction and cultivation, especially in Hainan and Yunnan.
The rubber wood texture is oblique, the structure is usually fine to medium, uniform, light and soft, dry shrinking, easy to dry, not resistant to corrosion, easy to change blue, easy to cut, no cracking, but weak nail holding power. In terms of structure, the rubber wood is light brown, the difference between heartwood and sapwood is not obvious, the luster of the wood is weak, there is no special smell, the growth rings are obvious, the bands are dark bands, 1 to 2 rounds per cm; the wood ray of rubber wood Medium to slightly dense, obvious under the magnifying glass, the ray pattern of the diameter section is visible to the naked eye; the rubber wood is a loose hole material, the tube hole is small, the distribution is uniform, and the diameter is arranged.
The economic value of rubber trees is mainly harvested rubber. The economic life is generally 25 years. After the rubber can not be produced, it can be cut and replanted. After the felled wood is treated with anti-corrosion and insect-repellent treatment, it can be widely used in furniture manufacturing, interior decoration and wood-based panel industry. And other fields. Malaysia, which is rich in rubber wood, is the fourth largest producer of MDF in the world; in addition, 80% of Malaysian solid wood furniture is made of rubber wood. It is possible to upgrade key technologies such as anti-corrosion (unreasonable anti-corrosion treatment, possible environment) and human body damage. Rubber wood is used in the manufacture of solid wood furniture.