How about carpentry making packaging boxes?

Hello! The following answers are for reference only, I hope they can help you.

1. First introduce the large core board

1. The large core board is also called block board. It is made of spliced ??wooden boards sandwiched between two wooden veneers. The middle spliced ??wooden boards and wooden veneers are all made of glue, so many large core boards release excessive formaldehyde.

2. When purchasing large core boards, you must purchase E1-level products from regular manufacturers.

When choosing, you should observe its appearance to see whether the surface of the large core board is smooth, whether there is warping, deformation, blistering, and dents. It is best to cut it open and observe whether the internal core strips are uniform. Neat, the smaller the gaps, and there should be no decay, breaks, wormholes, knots, etc.

When purchasing large core boards, merchants usually stack many large core boards one by one. You can choose a newer pile head (less dust

, wood color New) Lift up the large core boards on it, fan it, and smell the smell coming out. If it is non-irritating, it is relatively environmentally friendly.

3. What are the characteristics of large core boards and what are they suitable for?

The vertical bending strength of large core panels (divided by the direction of the core material) is poor, but the transverse bending strength is high. The nail holding power and water resistance are better than density board and particle board. The surface is generally rough and requires finishing treatment (paint or decorative boards, etc.). To put it simply,

Large-scale carpentry work at home that requires nails generally requires the use of large core boards.

However, the large core board itself uses a lot of glue, and a large amount of glue or paint is also used in the finishing process, and the pollutants of the large core board are all in the Open volatilization state, therefore, the usage of large core boards must be strictly controlled in home decoration.

Second, let’s introduce plywood

1. Plywood in English: Plywood. Plywood is made by spinning logs into veneers or planing wood into thin wood, and then gluing it with adhesive. Thin sheets with three or more layers. Usually an odd number of layers of veneers are used, and the fiber directions of adjacent layers of veneers are aligned perpendicularly and glued together. Therefore, there are odd number layers of plywood such as three-in-one, five-in-one, seven-in-one, etc.

From a structural point of view, the outermost veneer of plywood is called the surface board, and the front surface board is called the panel. It is made of the best quality veneer

material. The surface panel on the back is called the back panel, and is made of a single board with the next highest quality. The inner veneer is called the core board or the middle board, and is composed of the worst quality veneer.

2. What are the characteristics of plywood and what is it suitable for?

Each layer of plywood is bonded with glue, so its environmental protection is extremely poor. It is not recommended to be used in home decoration. If you want to say what it

is suitable for, then What it is most suitable for making is packaging boxes.

In addition, plywood is also suitable for use in some concrete construction or scaffolding at construction sites.