Magnetic composite plate, manufacturing method of magnetic composite plate and magnetic bulletin board made by composite plate

Abstract

The invention relates to a magnetic composite plate, and a manufacturing method of the magnetic composite plate. The magnetic composite plate comprises a surface material layer, a magnetic layer and asubstrate layer in sequential arrangement. The magnetic layer comprises bonding agents and magnetizable materials, and is used for bonding the surface material layer and the substrate layer. The composite plate can be simultaneously applicable to magnetic substance adsorption and fixation on thin flaky objects in modes of I-shaped nail puncture and the like; the use is convenient. The invention also relates to a magnetic bulletin board made by the composite plate. Compared with a magnetic bulletin board made by a magnetic or iron adhesive sheet, the magnetic bulletin board provided by the invention has the advantages that the manufacturing cost of the method provided by the invention is lower; the nail puncture is easy; a bulletin board product with larger dimension can be produced.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a magnetic composite board, a manufacturing method of the composite board, and a magnetic notice board made of the composite board. Background technique [0002] In the prior art, nailable decorative composite boards can be used to produce bulletin boards. This composite board has no magnetic adsorption performance and can only use H-shaped nails to fix pictures, paper or pendants. It has the following disadvantages: 1. Frequent nailing, Destroy the surface of the composite board and reduce the service life of the composite board; 2. Nails will cause nail holes in thin items used, such as photos and paper; 3. It is not safe for children to use H-nails. [0003] However, the above-mentioned bulletin board structure cannot cooperate with the adsorption of the magnet to fix the sheet-shaped articles, so people have developed a magnetic bulletin board. The board structur...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, nailable decorative composite boards can be used to produce bulletin boards. This composite board has no magnetic adsorption performance and can only use H-shaped nails to fix pictures, paper or pendants. It has the following disadvantages: 1. Frequent nailing, Destroy the surface of the composite board and reduce the service life of the composite board; 2. Nails cause nail holes on thin items used, such as photos and paper; 3. It is not safe for children to use H-nails

However, the metal sheet on the surface of the above-mentioned magnetic composite board is extremely hard and cannot be pierced into the H-shaped nail to fix other objects

2. The surface of the composite board is white and lacks decoration

3. The surface of the composite board is a metal surface, which lacks the function of sound absorption and noise reduction

[0004] Some magnetic composite boards use magnetic or ferrous films to absorb the magnetic nails, but they still have the following disadvantages: 1. The film needs to be formed and calendered, the manufacturing process is complicated, and the cost is high; 2. The film and the upper and lower layers of the magnetic composite board are sticky Bonding needs to be bonded on both sides, and the process is complicated

3. Due to the size limit of magnetic film or magnetizable film, this kind of notice board is also limited by size. Large size requires paneling, the process is more complicated, and product quality will also decrease due to paneling. Individual manufacturers can reach 1.2m width

4. For the composite board containing the magnetic film, the H-shaped nail can penetrate, but it is difficult to nail, and the use experience is poor

Images