Are woodworking boards and large core boards the same kind of boards?

Woodworking boards, also known as blockboards, are the same kind of boards as large heart boards.

The large core board is made of two pieces of veneer pressed together in the middle. The ** of large core board is cheaper than that of fine core board, and its vertical (distinguished by the direction of the core material) has poor flexural strength, but the transverse flexural strength is higher.

The middle of the blockboard is a core made of natural wood strips, and a thin veneer is glued on both sides. It can be used for furniture and wooden doors and door covers, heating covers, curtain boxes, etc., and its waterproof and moisture-proof performance is better than that of particleboard and MDF.

Scientific name of woodworking board: blockboard, Beijing and other places called large core board. The large core board is a special sandwich plywood, which is one of the most commonly used boards in the current decoration, generally used with decorative panel fireproof board and other surface materials, and can also be used as a keel (because some keels need not to be too thick, I remember a certain year in a construction site in a certain city, a Korean first-class design because of the mistake of the woodworking board keel as a wooden keel and let everyone pour it, and later I learned why it is a "first-class design" because the boss spends a lot of effort to promote "our company is a Korean designer writer, Big money is coming.

Khan"). The large core board is made of two pieces of veneer pressed together in the middle. It is made of wooden strips of the same thickness and length arranged in parallel and tightly spliced, generally in a five-layer structure.

The vertical (distinguished by the direction of the core material) has poor flexural strength of large core boards, but the transverse flexural strength is higher. (Note: In the renovation site, the thickness of the most common material after the beginning of carpentry is about never equal, and the normal application of the home is thickness, if you make a large cabinet door, etc., you need to use a thicker one.)

The surface color is white or yellowish, and the outer core is pressed by 2 thin layers of veneer sandwiched by wooden strips. Taste: Original wood products and glued taste.

The common name of large core board blockboard, also known as woodworking board, is plywood with a solid wood core. It is made by cutting logs into strips, splicing them into cores, and processing them with veneer on the outside. Its vertical (distinguished by the direction of the core plate) has poor flexural strength, but the transverse flexural strength is high.

The surface material can be divided into plywood, plywood, etc. according to the number of layers, and can be divided into eucalyptus, beech, teak, etc. according to the tree species. The surface of the panel is smooth and smooth, not easy to warp and deform, and can be divided into two types of light and two-sided light according to the surface sanding situation, and the two-sided light plate can be used as decorative materials for furniture panels, doors and windows frames and other critical parts. Most of the blockboards on the market are solid, glued, double-sided sanded, five-layer blockboards, with dimensions of 1220 mm and 2440mm.

Of course, it is not the same kind of board, and woodworking board is used more for fine work.

The large core board is used more in the base layer.

Woodworking board includes bamboo plywood, wood plywood, wood plywood, sandwich board is just one of them!

The main differences are, different properties, different characteristics, and different applications, as follows:

First, the nature is different.

1. Solid wood board.

Solid wood planks are planks made from intact timber (logs).

2. A large core board.

Large core board, also known as blockboard, refers to a special plywood made of wood slats spliced or hollow core board as the core board on the basis of plywood production, covered with two or more layers of plywood on both sides, and glued and pressed.

Second, the characteristics are different.

1. Solid wood board.

The solid wood board is durable, natural texture, and most of them have the unique aroma of natural wood, which has good moisture absorption and air permeability, which is beneficial to human health and does not cause environmental pollution.

2. A large core board.

The blockboard has good screw holding force, high strength, and has the characteristics of firm quality, sound absorption, heat insulation, and strong stability than solid wood boards, but it is afraid of moisture, and attention should be paid to avoid using it in the kitchen and bathroom during construction.

Third, the application is different.

1. Solid wood board.

Solid wood board is a high-quality board for making high-end furniture and decorating houses. Solid wood panels made of special materials (e.g. beech) are also ideal for the manufacture of gun butts and precision instruments.

2. A large core board.

It is widely used in furniture manufacturing, doors, windows and covers, partitions, false walls, heating covers, curtain boxes, sewing machine boards, carriages, ships, etc.

<> differences: different processes, different uses, and different thicknesses. 1. The process is different

The process of joinery makes full use of the scraps in wood processing, and is a kind of construction board with a large format, moderate thickness and uniform structure. 2. Different uses: the structural strength of multi-layer boards is better, the stability is stronger, and the joinery boards are widely used in furniture manufacturing, carriages, ships, etc.

3. Different thicknesses: multi-layer boards and joinery boards are composed of several layers of boards, but the difference between joinery boards is that multi-layer boards are not necessarily three-layered, and the thickness of each layer of multi-layer boards needs to be consistent.

I think you still have to come up with the original text before you can know the overall problem of this question. Here are some inconsequential encyclopedias!!

There is a simple way to identify the internal quality of the large core board: observe the large core board against the bright light, such as transparent white means that the wood strips are not spliced tightly enough; Listen to the sound when lifting it, and there is a creaking sound indicating that the gluing strength is not good; In the case of dry hand, lift one end of the large core board and weigh it, and the high-quality blockboard should have a sense of wholeness and heaviness; Tap the surface of the plate with a needle-nosed appliance to see if there is a big difference in the sound, if there is a change in the sound, it means that there is a cavity inside the plate.

Fourth, see if there is a smell. If the large core board emits a fragrant wood odor, it means that the formaldehyde release is less; If the smell is pungent, it means that the formaldehyde is released more, and it is best not to buy it. In addition, the greater the weight of the large core board, the more indicative it is that the board uses miscellaneous wood.

This kind of large core board made of miscellaneous wood cannot be nailed at all, so it cannot be used.

Generally, the thickness of the large core board is millimeter thick, and the thickness of the epidermis is millimeters, and the better brands are Ruijia, Baili, Dehejia, Kangcai, Pule, Montblanc, etc. The large core board can be divided into according to the advantages and disadvantages of the material and the texture of the surface material"Excellent"、"First class"and"Qualified products"。There are also enterprises that mark the plate grade as A-grade, double-A grade and triple-A grade, but this is only a corporate behavior, and there is no such thing in the national standard"Triple A"This kind of annotation is no longer allowed in the current market.

In use, the large core board can only be along the long side"Smooth open"It cannot be sawn horizontally. In addition, the large core board can not be used as a panel, and a layer of plywood should be pasted on the outside as a panel, otherwise it will come out.

Now paint blistering and other problems. Image wall floor material four (fireproof board).