What exactly is Sulawesi ebony?

Sulawesi ebony, learning

Name:

Dalbergia

Silibica

Bach. Also known as "Indonesian ebony" or "striped ebony", it belongs to Peach Family.

Persimmon

Striped ebony, originally called "ebony", is called "striped ebony" in China, and now it is also called "Pometia".

Ebony is the English general term for all ebony, and there are 104 ebony in the world.

Species that grow near the equator.

Sulawesi striped ebony belongs to ebony, which is one of Indonesia's three national treasures except birds of paradise and arowana, and is called "black pearl in wood".

Sulawesi, Indonesia, mainly grows near the equator of the earth and is located in tropical Asia. This area is dry all year round and seldom rains. Most of the islands are cliff mountains, and the growth environment of trees is extremely bad. This is the main reason for its slow growth. It usually takes hundreds or even thousands of years, and it is a second-class national treasure plant in Indonesia.

As Indonesia's national treasure timber, Sulawesi striped ebony has been listed in the Convention on International Trade in Endangered Species of Wild Fauna and Flora (commonly known as the Washington Convention), and logging and export are prohibited. At present, Sulawesi striped ebony circulating in the market is collected and exported on the grounds of forest appearance, and the quantity is very small.

Morphological feature tree morphology

Evergreen broad-leaved trees, the tree height can reach 40m, the height under branches is usually 10~20m, and the DBH can reach1m. The bark is black, with grooves and peeling, and the bottom is ribbed.

There is a board root, which can reach 4m.

Overall characteristics

Wood is porous.

The difference between heartwood and sapwood is obvious. Heartwood is black or chocolate (chestnut brown) with dark and light stripes. The sapwood is yellowish white or reddish brown.

The rings are not obvious.

It is obvious under the magnifying glass of the tube hole; Slightly less, slightly small to medium; Diameter row; Chewing gum is very common.

The axial parenchyma can hardly be seen under the magnifying glass.

A glimpse under a wooden ray magnifying glass; Secret; Very narrow.

No ripple marks and intercellular channels can be seen.

There is a pungent smell.

Microscopic characteristics

The cross section of the catheter is mostly oval, with single tube hole as the main part, and a few radial multi-tube holes (2~5, 2 ~ 3 more), and the tube hole group is rare.

Trailing or scattered.

5~ 10 pieces/mm2; Maximum chord diameter 145μm, average118μ m; The length of the vessel molecule is 550 microns; Chewing gum is very common.

Pit alternation between pipes; Polygon.

The perforated plate is monolithic, parallel and slightly inclined.

The perforation between the catheter and the ray is similar to the perforation between the tubes.

Axial parenchyma is banded (mostly in a single row, rarely in pairs or two rows), wavy, scattered and scattered, and a few are sparse tubes; Most parenchyma cells contain colloid, but no crystals are found.

Wood fiber wall thickness, diameter 19μm, length 1 12 1μm, simple pit or slightly narrow.

Wood ray13 ~17/mm; Non-overlapping

Single ray (sparse pair or 2 lines, even 3 lines), 1 ~ 32 (most 10 ~ 20) cell height.

X-ray tissue is alien.

Vertical or square ray cells are higher than horizontal ray cells, and a few cells are round and oval; Most cells contain colloid; Diamond crystals are very common.

No intercellular bundle was found.

Features: truth, goodness and beauty

Sulawesi ebony is a collection of Indonesian ebony, which is loved by thousands of people and has amazing "truth", "goodness" and "beauty".

1. Truth: The identification data of true colors and masculinity show that the air-dry density of Sulawesi ebony is1.24g/cm3; The total shrinkage is 6.2% in radial direction and 7.8% in chord direction; Compressive strength is 66.4Mpa, bending strength115.3 MPa; The shear strength of radial plane is 6.5Mpa, and that of chord plane is 7.3Mpa.

It can be seen that some performance indexes of Sulawesi ebony are even better than "the king of wood" rosewood.

There is a story about the masculinity of Sulawesi ebony.

In order to test the heat of human gas field, an internationally renowned laboratory illuminates people with infrared cameras.

At that time, people were sitting in ordinary chairs, and the test values were within the normal range; People sit on chairs made of ebony in Indonesia, and the red part is obviously stronger, and the test value is far beyond the normal range.

The results show that the "Oriental Shenmu" with full yang and vivid charm can actually change people's gas field, which is amazing.

If the characteristics of wood endow it with profound, dignified and magnificent connotation, "relying on favor but not arrogance" will highlight the true man nature of Indonesian ebony.

When the value of Huang Huali, rosewood and rosewood hit record highs, and Jin Sinan continued to interpret the myth of sky-high prices, Sulawesi ebony never claimed to be a luxury, and its market positioning of "high-end but not high-priced" made it increasingly win the favor of consumers.

Second, goodness: keep fit.

Sulawesi ebony, the product of evil spirits, has strong vitality.

Located between light and darkness, between heaven and earth, it absorbs the essence of the sun and the moon, serves the spirits of the five parties and adopts the spirit of the earth. After thousands of years of suffering and condensation, it has formed an abundant energy gas field, which has always been regarded as something for fitness.

Plaque in Umelin, Indonesia can enter the human body through pheromones, antibiotics and other natural molecules, which can inhibit and kill protoviruses and bacteria in the human body.

At the same time, Indonesian ebony is regarded as a good product to avoid disasters because of its beautiful and smooth texture, corrosion resistance, colorfastness and moth-proofing. Now, the Buddhist temples and shrines are made of Indonesian ebony.

In addition, long-term use of ebony furniture and absorption of cosmic energy extracted from Sulawesi ebony can promote the life energy of human body, stimulate human cells, make exhausted cells show exuberant vitality, achieve the effect of nourishing qi and heart, and achieve the noble spiritual realm of harmony between man and nature.

Third, beauty: vivid charm

The utility beauty of making furniture with Sulawesi ebony is the process of deducing "Oriental Aesthetics" with "Oriental Shenmu".

Wood properties

Wood has luster, no special smell and taste, slow drying and easy cracking; The kiln dry temperature should be 30~50℃, and the relative temperature is 88% ~ 365438 0%.

Wood is resistant to corrosion and difficult to handle.

Wood is heavy and hard, and consumes a lot of electricity; Good turning, planing and gluing performance.

The wood grain is shiny until it is staggered, and the structure is thin and uniform.

Wood is very heavy, with air-dried density 1.09g/cm. High strength, along the grain compressive strength of 60Mpa, bending strength11MPa, bending elastic modulus 147 10Mpa.

High hardness, the end hardness is greater than 65.

MPa .

Dry shrinkage is big, dry shrinkage is big. The drying shrinkage from raw materials to furnace shaft is 6.2% in radial direction, 7.8% in chord direction, and the volume drying shrinkage coefficient is greater than 0.65%.

Slow drying speed, easy to crack and slightly deformed.

Wood is antiseptic, insect-proof and corrosion-resistant.

Difficult, but good paint and adhesion.

Initial density (g/cm3) compressive strength and bending strength along grain

Elastic modulus and shear strength of parallel bending

(Diameter

Chord) basic

|

Air-dried Indonesia

|

1.0960.2

(65.4) 1 10.7

( 1 15.3)

147 10

( 1428 1)

5.7,6.4

(6.5, 7.3) Use

Sulawesi ebony is generally used in interior decoration, vehicle materials, high-grade furniture, musical instruments, handicrafts and veneer materials.

Furniture has the characteristics of pleasing to the eye, harmonious texture, fine and uniform structure, hard material and stable dry material size. The furniture has beautiful lines, smooth lines, clear texture, dignified and noble, and full of vitality. Therefore, Sulawesi ebony is mainly used for high-grade furniture, especially suitable for imitating Ming and Qing dynasties, styles and furniture styles with some western classical styles, which can well reflect charm, breeze and quaint fashion, and its main consumption is also here.