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How to praise the quality of wood?

This depends on your own knowledge accumulation, choose the wood

Manchurian ash: the wood grain is obvious, the sapwood is yellow-white, the heartwood is brown and slightly yellow, and the wood color is slightly lighter after sawing and planing. Cash yellow. The material is medium hard, with smooth texture, beautiful patterns, good processing performance and paint performance, water and wear resistance, and small deformation. Ash is an ideal surface material and is suitable for high-end furniture imitating teak color.

Birch, basswood, and colored wood are also three good surface materials. They have a loose texture and are suitable for panels. The difference between the core and sapwood of these three types of wood is not obvious, and the chord section has beautiful patterns. Basswood has a soft texture and good processing, tinting and paint properties. It can also be dyed and bleached. When dyed red, it can replace red fragrant wood and be used for surface inlay. It has low shrinkage and is not easily deformed. Birch and colored wood have fine structures, high strength, good color, and are easy to process. However, they are prone to cracking, warping, and deformation when dry. Special attention should be paid when using them. They are suitable for making furniture footrests, door frame strips, etc.

Cinnamomum, beech, paulownia, oak, castanopsis, etc. are southern woods. These woods have fine texture, dense structure, high strength and are relatively hard.

In today’s home decoration, Ash is used more often because of its lower price and more uniform color. However, the pattern of Ash is large, the wood is not delicate, and the color is yellowish. Currently, white beech and red are used. Beech is increasingly replacing ash wood.

Among furniture materials, mahogany refers to the high-quality dark heartwood of precious tree species in the genus Pterocarpus and Dalbergia of the Leguminosae family.

Beware of the traps of unscrupulous timber merchants

According to reports, the most common method used by unscrupulous merchants to deceive consumers is measurement fraud. According to international regulations, the width of sawn timber should be measured at the narrowest point within the length of the timber, excluding 15 centimeters from both ends. However, unscrupulous merchants take advantage of ordinary consumers' lack of knowledge in this area and choose to measure in the middle of the sawn timber. It seems that Fair enough, I've actually killed you.

There are also many problems with the timber merchants’ inspection tools. These tools have not been inspected by the national technical supervision department, and many of them are privately manufactured. Some are 20 centimeters longer by 1 centimeter, and others are 19 feet or 28 feet. Some shop owners even carry fake ones when selling. Two rulers.

Another "trap" that consumers need to be wary of is substandard wood species that are passed off as high-quality. According to national standards, wood grades are divided into first, second, third and fourth grades. Wood scars, internal voids, loose wood, etc. will all affect the wood grade. However, in order to make huge profits, unscrupulous merchants often pass off low-grade wood as high-grade wood and sell it. For example, hemlock is used as Douglas fir, and Scotch pine is used as redwood. In particular, Northeastern elm is commonly used as ash. Since the texture of Northeastern elm is similar to that of Manchurian ash, it is difficult to distinguish without careful identification. Unscrupulous merchants take advantage of this loophole and stack Northeastern elm and Manchurian ash together. When customers come to buy Manchurian ash, they mix them and sell them together. Each cubic meter Can earn more than 500 yuan.

Redwood and its wood characteristics

1. Rosewood (sandalwood)

English names: RISEWOOD, RED SANDALWOOD, REDSANDERS.

Alias: red sandalwood, red sandalwood, mahogany, rosewood, rosewood, sea rosewood.

Characteristics: The sapwood is narrow and white; the heartwood is bright red or orange-red, and turns purple-reddish brown after being exposed to air for a long time; the wood color is relatively uniform, and purple-brown is common. Growth rings are not obvious. Glossy, with special aroma, staggered texture, dense structure, corrosion resistance and durability. The material is hard, heavy and delicate.

2. Huanghuali wood (Dalbergia rosewood)

English name: SCENTED ROSEWOOD.

Alias: Alpinx, fragrant rosewood, flower palm, fragrant branch, rosewood.

Characteristics: The sapwood is light yellowish-brown, and the heartwood is reddish-brown to purple-reddish brown, which will turn into dark color over time; the wood color is uneven, often mixed with dark brown stripes. The growth rings are slightly obvious. The radial markings are slightly obvious, and the string mask has ripple marks. Glossy and spicy aroma. The texture is oblique or staggered, the structure is fine and even, and it has strong corrosion resistance and durability. The material is hard and heavy with high strength.

3. Rosewood (Dalbergia)

English names: ROSEWOOD, BLACKWOOD, etc.

Alias: purple elm, mahogany, black wood, etc.

Characteristics: The sapwood is yellow-white to yellow-brown, and some tree species are tan, etc.; the heartwood is uneven in orange, light reddish brown, reddish brown, and purple, with obvious dark stripes. The wood is shiny, with a sour or sour aroma (a few have rose aroma), and the texture is slanted or staggered. Thin and even (a few are medium), corrosion-resistant and durable. The material is hard, heavy and strong, and usually sinks in water. The main species of commercial wood include: Dalbergia latifolia, black Dalbergia, knife-shaped rosewood, Brazilian black rosewood, East African black rosewood, Cochin rosewood, Burmese rosewood, Bali rosewood, Madagascar rosewood, slightly concave rosewood, etc.

4. Rosewood (red sandalwood)

English names: PADEUK, MNARRA, etc.

Alias: New pear, fragrant rosewood, etc.

Characteristics: sapwood is yellow-white to gray-brown; heartwood is light yellow-brown, orange-brown, reddish-brown, purple-red to purple-brown; the wood color is relatively uniform, with dark stripes visible. The wood is shiny, with a slight or obvious fragrance; the texture is staggered, the structure is fine and even (some products from South America and Africa are slightly thicker), and it is corrosion-resistant and durable. The material is hard and heavy (some are medium), has high strength (some is medium), and usually floats in water. The main species of commercial wood are: Burmese rosewood, Vietnamese rosewood, black-footed rosewood, Andaman rosewood, Indian rosewood, thorn rosewood, African rosewood, etc.

What are the advantages of mahogany furniture?

High-end solid wood furniture made of mahogany, after years of historical changes, now has many advantages, mainly including:

Reasonable functions

Is mahogany furniture not as ergonomic as ordinary modern furniture? This is a common misunderstanding. In fact, after long-term deliberation and improvement, many mahogany furniture are designed according to the functional proportions of the human body, which are more in line with the requirements of the human body and are highly scientific. Take chairs as an example. The curved back chairs and armchairs all meet the needs of the human body and feel comfortable to sit on.

Beautiful shape

The solemn and elegant mahogany furniture is not unified in the changes, with fine carvings and smooth lines. There are simple and elegant imitation Ming style, as well as elaborate imitation Qing style with carved dragons and phoenixes, as well as elegant and generous French style, etc., which are suitable for different people's aesthetic needs.

Rigorous structure and fine workmanship

Mahogany furniture is mostly made of quasi-mao joints. The method is clever and coincident, strong and durable, and has strong scientific basis from a mechanical point of view. Moreover, my country's traditional mahogany furniture is basically made by craftsmen with one knife, one saw and one plane. Each cut requires the craftsman's effort, and at the same time, the harmony and unity of the overall art must be paid attention to.

Be particular about the materials used

Genuine traditional Chinese mahogany furniture is made of precious hardwood (i.e. mahogany) that is fine in texture, hard and durable, has a calm texture, is beautiful and elegant, and is rich in luster.

Value preservation

It integrates practicality, appreciation and value preservation. Traditional Chinese mahogany furniture with great age and high quality is a treasure coveted by Zhongwu collectors. In addition, the resources of mahogany are limited, and the growth cycle of mahogany is very long, some of which can last hundreds of years. Therefore, mahogany furniture that is "rare and valuable" will become more and more unique.

Veneer materials

Decorative veneer veneer plywood (decorative board for short) is commonly known as "veneer" in the market, and ash veneer is commonly known as "curved veneer" and beech veneer. Commonly known as "Beech board". Decorative boards are commonly used decorative materials for home decoration nowadays. Choose high-quality decorative panels, and their stable and reliable structural decoration will make the room sparkle; however, if consumers choose inferior decorative panels, the surface will bulge and crack. Choosing high-quality decorative panels has become a concern for consumers.

There are rules to follow when purchasing decorative boards

1. Recognize the difference between artificial thin wood veneers and natural wood veneers: the texture of the former is basically a straight texture, with a texture pattern. There are rules; while the latter is a natural wood pattern, and the artistic patterns are naturally more variable and irregular.

2. Good decorative properties: The decorative board should have a good aesthetic appearance, and the material should be fine and even, with clear color. The wood grain should be beautiful. The textures of the panels and parquet should be arranged according to a certain pattern. The wood color should be similar, and the seams and panel edges should be nearly parallel.

Chicken wing wood is hard wood and comes in three colors: black, white, and purple. It looks like chicken wing feathers and has bright and bright colors. However, because the wood contains impurities such as fine gravel, it is difficult to process and is good for decorative edge materials. It is difficult to see complete sets of wenge wood furniture on the market. For example, there are only a few precious tropical hardwoods included in the national mahogany standards: rosewood, huanghuali, ebony, rosewood, chicken wing wood, incense branch wood, etc. Some of these precious woods have no natural production for a long time, and other production is also very small. In addition to facing high market prices, customers must also be wary of counterfeit and shoddy products flooding the market. Therefore, the traditional mahogany furniture market is shrinking. It doesn’t make much sense to use ordinary wood to make traditional solid wood furniture.

3. Panel furniture refers to disassembly and assembly furniture with artificial panels as the main base material and panels as the basic structure. Common man-made panels include plywood, blockboard, particle board, MDF, etc. Plywood (plywood) is often used to make furniture that requires bending and deformation; the performance of blockboard is sometimes affected by the core material of the board; particle board (also called particle board, bagasse board) is loose in material and is only used for low-end furniture. The most cost-effective and most commonly used is medium density fiberboard (MDF). Common decorative materials for panel furniture include thin wood (commonly known as veneer), wood grain paper (commonly known as stickers), PVC rubber sheets, polyester paint (commonly known as baking paint), etc. The latter three finishes are usually used for mid- to low-end furniture, while natural wood veneer finishes are used for high-end products. Panel furniture is furniture made of medium-density fiberboard or particleboard with surface veneer and other processes. A large part of this kind of furniture is wood grain simulation furniture. The veneers of some panel furniture currently sold on the market are becoming more and more realistic, with good gloss and feel. Products with fine craftsmanship are also very expensive. The ideal space on the third floor of the Lize store is veneered, while the Jiahao room is veneered.

How to choose panel furniture?

The easiest way to distinguish whether panel furniture is made of paper veneer or wood veneer is to observe the pattern. Wood veneer has natural knots, color differences and texture changes, and then touch it with your hands. The feel is different. The edge sealing of panel furniture is very important. Pay attention to the quality of the edge sealing materials and whether the edges are uneven or warped. Special attention should be paid to whether it is edge-sealed on all six sides - although formaldehyde-free adhesive is used, there will be more or less volatile gases in the production process of artificial boards, and the edges are sealed tightly. There are certainly benefits to being environmentally friendly in your home. It also depends on the solidity of the furniture structure. One is the gap between the doors and drawers of the furniture. If the gap is large, it means the workmanship is rough and it will deform after a long time; the other is whether it is a single box or a double box. Usually, in addition to the outer layer of boards, there are also pieces inside the furniture. There should be a layer of panels, which is called a double box. Double box furniture is both beautiful and strong. The quality of the paint. Does the paint streak? Is the paint applied too thickly in the corners? Are there any cracks or bubbles? These need to be examined carefully. You also have to ask the salesperson how many coats of paint the furniture has been given. Of course, the more times you do it, the better. From the hinge grooves and holes, you can tell whether the panel furniture is made of medium density or particle board. One of the best ways is to carefully observe the hinge grooves and holes. If the internal structure is exposed, you can tell whether it is made of particle board or particle board. MDF. The use of hardware that can be disassembled, assembled and combined at will is the biggest advantage of panel furniture, so the quality of the connectors is closely related to the quality of the entire furniture. The price of imported furniture lies in these details.

Misunderstandings about modern wooden furniture

Myth 1: Only solid wood is good

The first thing many customers say when they see a product in a furniture store is I wonder if it’s all solid wood? As soon as he heard a negative answer, he turned around and left. In fact, this is due to their lack of understanding of modern panel furniture.

Modern panel furniture, which corresponds to traditional solid wood furniture, is centered on artificial panels. The most commonly used MDF is an artificial board made of wood fiber or other plant fibers as raw materials, adding resin and other adhesives, and subjecting it to high temperature and high pressure. In terms of material, MDF has a dense texture, a wide range of thickness and density, a large strength-to-weight ratio, low moisture content, and is not easily deformed. It is the most common high-quality furniture board in the world.

In terms of finishes, natural wood veneer is not only natural and beautiful, but also has a certain thickness (0.3-0.6mm), which has a good protective effect on the furniture. Therefore, solid wood edge sealing and wood veneer are the highest level practices for panel furniture, even if high-end European furniture is imported. Solid wood is generally only used in small parts such as wooden strips and edge sealing. On the other hand, whether it is traditional furniture or modern furniture, the wood used is clearly divided into high, medium and low grades due to factors such as material, texture, resource content and so on. Low-grade solid wood is not as valuable as high-grade veneer. In particular, many mid- to low-grade solid woods have a high chance of deformation and bursting after being made into furniture due to inadequate dehydration treatment (furniture wood usually requires kiln drying and a relative moisture content of less than 10%-12%). High-end solid wood furniture is often expensive.

Modern wooden furniture also uses a lot of solid wood and veneer. The following are commonly seen in the Guangdong market:

1. Black walnut, walnut is one of the highest quality woods, mainly Produced in North America and Europe.

Domestic walnut is lighter in color. Black walnut is light dark brown with purple color, and its chord section has a beautiful large parabolic pattern (big mountain pattern). Black walnut is very expensive, and veneer is usually used to make furniture, and solid wood is rarely used.

2. Cherry. Imported cherry wood is mainly produced in Europe and North America. The wood is light yellowish brown with elegant texture. The chord section has a medium parabolic pattern with small circles in between. Cherry wood is also a high-grade wood, and veneer is usually used to make furniture, and solid wood is rarely used.

3. Beech. The beech here refers to beech, which is two different things from the "Southern Beech and Northern Elm" beech in traditional Chinese furniture. Beech wood is bright and light yellow in color, has dense "needles" (wood rays), and has mountain grain when peeled. Beeches imported from Europe have fewer defects and are much better than domestic ones. Imported beech wood is a mid- to high-grade wood in China and is commonly used as veneer. Solid wood is also used as dining chairs and small square bars.

4. Maple wood. Maple wood is light yellow in color and has small mountain grains. Its biggest feature is its "shadow" (partial luster is obvious). Maple is a mid-range wood, and both veneer and solid wood are common.

5. Birch. Birch is light yellow in color and easy to distinguish due to its many "water lines" (black lines). Birch is also a mid-range wood, and both solid wood and veneer are common.

6. Rubber wood, its original color is light yellowish brown, with scattered small rays, the material is light and soft, and it is a low-grade solid wood material. Businessmen often call it "oak", which is actually an attempt to fish in troubled waters. Real oak is more expensive. European white oak has an elegant texture, while North American red oak has a large mountain grain. Both are hard and heavy, and their appearance, structure, and material are nothing like rubber wood.

Others, such as pine, fir, oak, etc., are all relatively low-end furniture materials.

Myth No. 2: Confusion between solid wood, veneer and stickers

With the development of modern wood furniture, it has formed a large market structure with diverse styles, complete varieties and complete grades. While the diversified market provides a wealth of choices, it also creates the problem of a mixture of good and bad, making it difficult to distinguish good from bad. As a customer, you must keep your eyes peeled when purchasing.

Solid wood is mostly used in varieties and parts that use less materials, and precious wood is rarely used in solid wood. For example, solid wood dining chairs are more common, but generally the mid-to-high-end ones are made of imported beech, the mid-range ones are made of maple, birch, and domestic beech, and the low-end ones are made of rubber wood. If someone tells you that he sells "imported black walnut solid wood dining chairs" for five to six hundred yuan a piece, then he is definitely deceiving you. The chair was mostly made of birch wood and dyed black walnut with lacquer. Similar practices are common in the Chinese and foreign furniture industries. However, the original intention of saving costs and harmonious matching has been used to hide the truth, and we have to guard against it.

There are many decorative materials for modern panel furniture, among which wood veneer and stickers are commonly used, but the grades are completely different. Wooden veneer furniture is rich in natural texture, beautiful and durable, but the price is relatively high. Sticker furniture is easy to wear, is afraid of water, and cannot withstand collisions, but is cheap and is a popular product. Some types of furniture that have little wear and tear and are not close to water sources are currently mainly made of stickers, such as shoe cabinets and bookcases.

When customers visit a furniture store, they will see descriptions such as "walnut floor cabinets", "cherry wood coffee tables", "beech wood dining chairs" on price tags.

At this time, it is very important to figure out whether it is solid wood, veneer or stickers. Solid wood and wood veneer can be called "cherry wood furniture", but stickers can only be called "cherry wood grain furniture", otherwise it is just a fake.

Solid wood - the wood grain and wood rays (usually shown as "needle" if any) are clearly visible, and there should be more or less natural flaws (wood knots, wood spots, etc., black lines, etc.) ). For the same piece of solid wood, whether it is a board or a batten, the wood grains at the two interfaces should clearly show the natural connection between the longitudinal section and the cross section.

Wood veneer - clear wood grain and wood rays. There should also be natural imperfections. Because the veneer has a certain thickness (about 0.5mm), when making furniture, when two adjacent interfaces are encountered, they are usually not turned, but one piece is attached to each other. Therefore, the wood grains of the two interfaces should usually not be connected.

Stickers - wood grain and wood rays are clearly visible. Even imported high-grade paper can imitate even wood defects, but it is still different from natural wood veneer and looks fake. Sticker furniture is prone to showing flaws at the corners.

In addition, because the thickness of the wood grain paper is very small (0.08mm), it will be wrapped directly at the intersection of the two planes, causing the wood grains of the two interfaces to be connected (usually in longitudinal sections). Basic knowledge of materials - woodworking Category

1. Woodworking category:

1. Plate: The size of the plate is generally: 2440*1220*X

Including: various decorative panels (Thickness: 2.7~3), plywood (thickness: 3~12), large core board (thickness: 9~18), high-density board, Aite board, fireproof board, aluminum-plastic board and plastic gusset board (200~350*6000 ), etc.

2. Wooden lines:

There are various corner lines, ceiling lines, foot lines, door lines, garden lines, wall group lines, wooden flowers, wooden columns, etc. .

3. Wooden squares and light steel keels:

The wooden squares are: 20*30, 30*40, 40*60, 60*100 and various specifications of wood beams Light steel keels are divided into aluminum alloy and zinc iron keels.

4. Various solid wood doors, composite doors, plastic steel doors

5. Various solid wood floors and composite Wooden floors;

6. Hardware accessories:

Various doors, drawer handles, hinges, door locks, drawer locks, drawer tracks, etc.;

2. Electrical appliances, lighting and plumbing equipment

1. Wires: 1.5㎡, 2.5㎡, 4㎡, 6㎡, 10㎡

2. Switches, sockets

3. Broadband lines, telephone lines, closed-circuit television lines, audio lines.

4. Various spotlights, downlights, fluorescent lamps, lanterns, wall lamps, mirror lamps, bedside lamps, chandeliers, etc.

5. Various water supply and drainage pipes, switches, valves, sanitary ware, etc.

3. Aluminum alloy, stainless steel and glass, iron art:

1 , Aluminum alloy: 76, 96 series window materials and accessories, various specifications of round tubes, square tubes, gusset plates, angle aluminum, tracks and exposed frames, hidden frame curtain wall materials and accessories.

2, Stainless steel: K gold plates, matt plates, titanium plates of various thicknesses; garden tubes, flower tubes, square tubes of various specifications; stainless steel balls, tees, etc.

3. Glass:

Usually the thickness of transparent glass we use is: 5, 8, 10, 12, 15, 20. There are ordinary flat glass, tempered glass and bulletproof glass (about 30). There are very few 3mm glass. It is used, usually only for things like photo frames. Mirrors are usually 5mm, and coated glass is usually used in windows and curtain walls, with thicknesses of 5mm and 6mm.

4. Iron flower: There are not many used ones, and they are all customized, so I won’t go into details;

Four, carpets, wall hangings, and wallpapers:

These things have a variety of designs and colors, which are difficult to list. , it’s best to get product introductions and samples.

Fifth, stone and ceramic tiles: There are too many specifications, colors and varieties of ceramic tiles and stones. I won’t go into them here.

Vi. , Paints and coatings: Such chemical products must be green, environmentally friendly and harmless to the human body.

Seven, gypsum:

1. Gypsum board (usually 600* 600), usually used for suspended ceilings in large areas such as shopping malls, aisles, general offices, etc.

2. Gypsum (glass fiber reinforced plastic) lines.

3. Gypsum (glass fiber reinforced plastic) columns , stigmas, shapes, flower corners, lamp circles, etc.

Eight. Fire protection and security equipment categories:

Nine. Signboard production categories:

Various organic Glass, aluminum-plastic panels, light box cloth, and signboard characters of various materials: self-adhesive characters, foam characters, PVC characters, crystal characters, copper characters, stainless steel characters, iron characters, gold foil characters, neon lights, etc.

10. Curtains;

Water supply pressure pipes usually include galvanized steel pipes, aluminum-plastic pipes and PPR pipes. Calibers are in inches. Specifications include 1/4 inch, 1/6 inch, 1 inch, 1.5 inch, 2.5 inch, etc. Among them, galvanized steel pipes have been designated as a variety to be phased out by the Ministry of Construction, and PPR pipes are a key product to be promoted. In addition to the traditional rib fastening process, the biggest feature of PPR pipes is the use of professional hot-melt welding machines for hot-melt welding.

Drainage pipes are basically dominated by PVC pipes. The diameters are 50, 100, 110, 150, etc., and the unit is mm. A relatively new process is internally foamed PVC pipe. (The main function is to make the sound smaller when poop and pee pass.) PVC pipes below 50mm are also available in 32, 25, 16mm and other specifications. However, the specifications of gypsum board used generally are 1220*2440*9.5/12 or 1220*3000*9.5/12 instead of being used as drainage pipes during construction but as wiring pipes when laying circuits. The unit is millimeters. The 9.5 mm type corresponds to the 50 series light steel keel for ceilings, and the 12 mm type corresponds to the 75 series light steel keel for partition walls. The specifications of solid wood flooring are generally 18*90*900, 18*90*910, 18*120*900, 18*120*910.

The specifications of laminate flooring are generally 8/10/12*210*1810.