What does decorative board mean?

Classified decorative materials are divided into two parts: one is outdoor materials, and the other is indoor materials.

Indoor materials are divided into solid materials, plates, sheets, profiles and wires.

Decorative board is the floorboard of all boards, mainly including: (1) joinery board 1. Conceptual blockboard (commonly known as large core board and blockboard) is a plywood with solid wood core, and its vertical bending and compressive strength (distinguished by the direction of core board) is poor, but its transverse bending and compressive strength is high.

At present, most of the blockboards on the market are solid, glued, double-sided frosted and five-layered, and the size specification is 1220.

Mm ×2440 mm.

Blockboard 2. Features joinery board has the characteristics of good screw grip, high strength, firmness, sound absorption and heat insulation. , and the water content is not high, ranging from10% to13%. It is simple and convenient, and has the widest application.

The joinery board is more stable than the solid board, but it is afraid of moisture, so it should be avoided in the kitchen and bathroom during construction.

There are two kinds of joinery boards: extension splicing and manual splicing. Manual splicing is to insert wood strips into plywood by hand. Because of the poor extrusion pressure, wood strips cannot be cut, so it is only suitable for partial decoration projects, such as making solid wood floor pads.

However, the machine splicing board has the advantages of large extrusion pressure, extremely small gap, flat splicing and uniform stress, and is not easy to deform after long-term use.

The price of good joinery board is between 70- 140 yuan, and the price of poor joinery board is between 40-60 yuan.

There are many kinds of core materials of blockboard, such as poplar, birch, pine and paulownia. Among them, poplar and birch are the best, with dense texture, strong nail grip and difficult deformation.

Paulownia, on the other hand, has soft texture, high water absorption and is not easy to dry. After long-term use, the water evaporates and the plate is easy to crack and deform.

Hardwood is hard, hard to press, poor splicing structure, not bad nail holding power and large deformation coefficient.

3. Use furniture, doors and windows and covers, partitions, fake walls, heating covers, curtain boxes, etc.

4. The surface of the selected joinery board shall be smooth, free from warping, deformation, bubbles and depressions; The core strips are arranged evenly and neatly, with small gaps, and the core strips are free from decay, fracture, wormholes and knots.

Some joinery boards cut corners and have large gaps in solid wood strips. If a nail is nailed in the gap, there is basically no nail holding force.

Consumers can look at the sun when they choose, and the cracks in the solid wood strips will be white.

The bonding strength of blockboard is not good. If one of them is self-funded, there will be a "squeaking" sound of glue opening.

If the big core board emits a fragrant smell of wood, it means that the formaldehyde emission is less; If the smell is pungent, it means that formaldehyde is released more.

The quality of blockboard is uneven, so check it carefully when purchasing.

First of all, look at whether the core material is dense, whether there are obvious cracks and rotten battens, whether there are obvious cracks and rotten battens, and there may be eggs in rotten battens, which are easy to be eaten by insects in the future; Seeing that there is no glue and putty around, it is generally to make up for internal cracks or holes; Then tap the disk with a sharp-billed instrument to see if there is a big difference in sound. If the sound changes, it means there is a hole in the plate.

These phenomena will weaken the overall bearing capacity of the plate, and the long-term uneven stress will cause the plate structure to be distorted, which will affect the appearance and use effect. (2) Plywood 1, the concept plywood is made of three or more layers of solid wood veneer or a thin plate with a thickness of about one millimeter. There are three plywood, five plywood, nine plywood and twelve plywood (commonly known as three plywood, five plywood, nine plywood and twelve plywood).

2. The characteristic plywood has good structural strength and stability.

Plywood contains a large amount of glue, so edge sealing should be done well during construction to reduce daytime pollution.

3. Uses Plywood is mainly used for various wood products, such as the bottom plate of decorative boards and the back plate of panel furniture.

4. Choosing plywood mainly depends on its formaldehyde emission and bonding strength.

If the bonding strength of plywood is not good, it is easy to fall apart.

Pay attention to whether the nominal thickness of plywood is consistent with the actual thickness when choosing.

Pay attention to the following points when choosing plywood: ① Plywood has positive and negative points.

When selecting plywood, the wood grain should be clear, the front should be smooth, not rough, flat and without stagnation.

(2) Plywood should not be damaged, bruised, bruised, scarred and other defects.

③ The whole board has no degumming phenomenon.

(4) Some plywood is made of two veneers with different lines stuck together, so it should be noted that the flat-fell seam of plywood should be tight, and there should be no unevenness in material selection.

(5) When choosing plywood, attention should be paid to choosing plywood that will not come loose.

If you knock on various parts of plywood, the sound is brittle, which proves that the quality is good. If the sound is muffled, it means that the splint is loose.

Third, decorative board 1, the concept of decorative board veneer plywood (decorative board, veneer) is to accurately cut solid wood into a thickness of 0.2.

Veneers over mm are decorative boards with one-sided decorative function, which are glued together with plywood as the base material.

2. Characteristic decorative boards are generally used for oil pollution cleaning and decoration.

The surface layer is thin and the plate is a precious tree species with natural and gorgeous texture.

The base material is generally plywood, which has stable and reliable performance.

3, the use of decorative panels decorative panels are commonly used decorative materials for home decoration.

4. Choose unscrupulous merchants to make a fuss on the surface panel. The surface panel is too thin, and the thickness is only about 0. 1. In order to prevent the color of the bottom plate from being exposed, brush a layer of paint with the same color as the surface panel first, and then stick the surface panel. Due to the poor adhesion between paint and glue, the bonding strength of the surface panel is poor and it is easy to bulge.

Consumers choose to scrape the surface layer with a blade, and the thickness of most surface panels is not up to standard.

A good decorative board will make the room bright.

After the inferior decorative board is used for a period of time, the surface will bulge and crack.

First of all, we should pay attention to the following points when purchasing decorative boards: ① Recognize the difference between artificial veneer and natural veneer.

The texture of the former is basically straight and the texture pattern is regular; The latter is natural wood grain, and the natural variability of texture patterns is relatively large and irregular.

② The decoration is better.

The decorative board should have a good aesthetic appearance, and the materials should be meticulous and uniform, with clear colors and beautiful wood grain.

The textures of matching plates and patchwork should be arranged according to certain rules, and their true colors are similar, and the patchwork is almost parallel to the edge of the plate.

(3) The surface shall be free from obvious defects.

The surface of the selected decorative board should be smooth, with gouges and gouges; There should be no glue leakage and surface pollution (such as local yellowing and blackening); Should try to choose the surface without cracks, cracks, knots, crusts, resin channels and glue grooves; The natural warping of the whole board should be as small as possible to avoid sand penetration caused by improper sanding process.

(4) do not open the glue.

It should be noted that there should be no protrusion and delamination between the surface veneer and the substrate and between the layers inside the substrate.

⑤ The crowbar method is the most intuitive method to test the bond strength. Pry it off along the adhesive layer with a sharp flat blade. If the adhesive layer is damaged and the wood is not damaged, the bonding strength is poor.

⑥ Choose plates with low formaldehyde emission.

When choosing, avoid decorative boards with pungent smell.

⑦ Choose the good products that the production enterprise has made clear.

Most products with clear names, addresses and trademarks have good performance.

(4) density board 1, the concept density board is divided into medium density fiberboard (MDF) and hard fiberboard (high density board). Medium density fiberboard with a density of 450-800 kg/m3 and hard fiberboard with a density of more than 800 kg/m3.

Dense density board is made of plant wood fiber as the main raw material through hot grinding, paving, hot pressing and other processes.

2. The characteristic density board has smooth surface, fine material, stable performance, firm edge and decorative board surface.

However, the moisture resistance of MDF is poor. In contrast, the nail holding power of MDF is worse than that of particleboard. If the screw is loose after tightening, it is difficult to fix MDF because of its low strength.

Dense density board 3, the purpose is mainly used to strengthen wood floors, door panels, partitions, furniture and so on.

Density board is mainly used for surface treatment of oil blending process in home decoration.

4. Choose density board to test formaldehyde emission and structural strength. According to the formaldehyde emission, the density board is divided into E 1 grade and E2 grade. If the formaldehyde emission exceeds 30mg/ 100g, it is unqualified.

Generally speaking, most of the density plates of the scales of the manufacturers on the scales are qualified.

Most of the density boards in the market are E2 grade, and there are few E 1 grade.

(5) glulam 1. Conceptual glulam is a new type of solid wood material, which is made of large-diameter logs and is deep and staggered.

2. Features Due to different processes, this board has superior environmental protection performance, and the price is about 200 yuan per board, which is slightly more expensive than high-grade joinery board.

Laminated timber can be painted directly, which saves a process compared with blockboard.

3. The use of laminated wood is not easy to deform, and it is mainly used for wooden door fans and high-end furniture. (6) particleboard 1. Conceptual particleboard is made of natural wood by extrusion into material shape and then bonding and pressing. Because its cross section resembles a honeycomb, it is called particleboard.

2. Characteristic particleboard, heat insulation and sound absorption. Because it is easy to make, the quality is very different, it is difficult to distinguish, the bending resistance and tensile strength are poor, the density is high, and it is easy to loosen.

3. Uses Particleboard is mainly used for heat insulation, sound absorption or ceiling, ordinary furniture, etc.

At present, many manufacturers produce furniture with particleboard, which is also the main material of cabinets.

The surface of particleboard is often pasted with melamine veneer on both sides. After edge sealing, it is consistent with the appearance of density board, and adopts special connector, which is detachable.

(7) Fireproof board

1. Conceptual fireproof board is a decorative board made of siliceous materials or calcareous materials as the main raw materials, with a certain proportion of fiber materials, lightweight aggregate, adhesive and chemicals, and the thickness is generally 0.6-1.2 mm. ..

2. The characteristic fireproof board is cost-effective, high in strength, fireproof and moisture-proof.

Fireproof board 3, purpose Fireproof board is mainly used for cabinets, display cabinets, etc.

Fireproof board construction requires high glue, so it is necessary to master the thickness of glue brushing and the drying time of glue, and paste it at one time.

(8) Gypsum board 1, the concept is made of gypsum plaster as the main raw material, adding additives and fibers.

Gypsum board and light steel keel (pressed by galvanized steel sheet) are combined into light steel keel gypsum board.

There are many types of light steel keel gypsum board ceiling, including paper gypsum board, decorative gypsum board, fiber gypsum board and hollow gypsum board strip, and there are many specifications.

2. It is characterized by light weight, heat insulation, sound absorption, incombustibility and sawing.

Gypsum board 3. Use in home improvement, gypsum board is mostly used in the local modeling of the lamp pool and dining room in the living room, which is light in weight, low in price and convenient in construction, but poor in moisture resistance.

(ix) pvc plate 1. Conceptually, PVC board is a kind of board with honeycomb network structure made of PVC as raw material.

Mostly plain colors, but also imitation patterns and imitation marbles.

2, waterproof, moisture-proof, moth-proof.

It contains flame retardant raw materials and is safe to use.

3, using PVC boards PVC boards are mainly used in bathrooms and kitchens, and the price is relatively cheap.

4. Choose PVC board with forming tongue and groove on both sides, which is complete and straight, smooth in mutual occlusion, and free from local fluctuation and height difference.

(10) aluminum gusset plate 1, the concept of aluminum gusset plate is aluminum products, and the installation method is called aluminum gusset plate because it is buckled on the keel.

The thickness of aluminum gusset plates is generally 0.4 mm-0.8 mm, and there are strips, squares and diamonds.

2, the use of aluminum gusset plate home improvement generally has two places to consider installing aluminum gusset plate ceiling, one is the bathroom and the other is the kitchen.

The ceiling of the bathroom should be hollowed out.

The kitchen ceiling should be flat.

3. When choosing to buy aluminum gusset plates, pay attention to using stainless steel and iron to make fakes, which can be verified by magnets.

(XI) aluminum-plastic plate 1. Conceptual aluminum-plastic board is composed of thin aluminum layer and plastic layer, which is divided into single-sided aluminum-plastic board and double-sided aluminum-plastic board, and the thickness is generally about 3-5 mm.

2. Use: Aluminum-plastic panels have good decorative properties, and are used for image walls, display cabinets, kitchen and bathroom ceilings, etc.

3. When purchasing aluminum-plastic board, use vernier caliper to measure whether the thickness meets the requirements, and then prepare a magnet to test whether it is iron or aluminum.

Mainly used for heat insulation, sound absorption or ceiling, ordinary furniture, etc.

At present, many manufacturers produce furniture with particleboard, which is also the main material of cabinets.

Relevant standard GB/T

19367.2-2003| Wood-based panel

Determination of verticality and edge straightness of plates GB/T

19367+0-2003 | Wood-based panel

Determination of thickness, width and length of plate GB/T

15104-1994 | veneer-based panel GB/T

15 102- 1994|

18580-200 1| interior decoration materials

Formaldehyde emission limit in wood-based panels and their products GB/T

18259-2000| Terminology of Wood-based Panel and Its Surface Decoration GB/T