Wood Encyclopedia - Balsa
Chinese name: light wood species alias: Bashamu, Balsamu
Bombacaceae tree, scientific name Ochroma pyramidale or Ochroma lagopus. Native to the tropical regions of South America, the material is extremely light.
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Wood processing looks similar to white pine or eucalyptus. Dry balsa is only 6-8 pounds (2.7-3.6 kg) per cubic foot.
Buoyancy is about twice that of cork and is suitable for lifebuoys and life jackets. Because of its good elasticity, it is also an excellent shockproof material for packaging furniture and other items and manufacturing machine seat cushions.
It also has good insulation properties, can be used as insulation material for incubators, refrigerators and cold rooms, and is a good material for manufacturing solid carbon dioxide containers. It can also be used in the cockpit of an aircraft and to make aircraft and ship models.
Balsa seed fibers are commercially known as grass duck down or rabbit claws and are used as fillers for mattresses and cushions. A blend of balsa fiber and some other seed fibers, often sold as plant fibers. In South America, Ecuador is rich in balsa wood, a thick and long wood, and two people lifted up and flew. Light wood is half as light as the cork of cork, the lightest tree in the world.
It weighs only 115 kg per cubic meter. A normal adult can lift up to 8 times as much lightwood as his own. Balsa is the only evergreen medium tree in the genus Kapokaceae and balsa. A 10-year-old balsa can be as high as 16 meters and 50-60 cm in diameter. The leaves are broadly heart shaped and alternately grow on the branches. The flowers are large, yellow and white, and they are born on the top of the canopy. The knot has a long round capsule with a cotton tuft inside and consists of five fruit petals. The seeds are obovate, reddish or brown, and densely covered with fluff, like cotton seeds.
Balsa is native to South America and the West Indies, and the locals call it “Bal Shamuâ€. "Balsa" means "scorpion" in Spanish, and the use of balsa wood as a scorpion has a particularly large buoyancy and can carry more things. Balsa is one of the fastest growing tree species in the world. It can grow up to five or six meters a year and has a diameter of 5-13 cm. Due to the rapid renewal of cellular tissues in the body, all parts of the plant are extremely soft and elastic. Light wood, also known as Baise wood, belongs to the family Kapokaceae and light wood. It is an evergreen tree.
A 10-12 year old balsa trader can reach 16-18 meters and a bust of 1.5-1.8 meters. Its trunk is straight and the bark is brown.
Its tfL is broadly heart-shaped, and the single leaves of the slices are alternately arranged on the branches, and the edges of the leaves have a prismatic deep crack. The flowers grow very large, are white, and are born on the upper layer of the canopy. The fruit is called capsule, oblong, with cotton-like tufts inside, composed of 5 fruit petals. The seeds are obovate, pale red or brown, and densely covered with fluff, just like cotton seeds. This kind of tree is twice as light as the cork ridge used for cork.
A l0 meter long, holding a thick balsa, even a woman can easily pick it up. The dry balsa wood has a specific gravity of only 0.1-0.2. Because of its low thermal conductivity and good physical properties, it is both heat-insulating and sound-insulating. It is therefore a good material for insulating materials, soundproofing equipment, life-saving chest straps, water buoys and aircraft manufacturing.
Because of its smallest wood capacity, it is not easy to deform, the volume stability is good, the material is uniform, and it is easy to process. Therefore, various exhibition models and plastic veneers can also be produced. In addition, its hair can still be used as a filling material for pillows and sputum. "
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