Industry News

Application of strong NdFeB magnets in various fields.

2022-09-23
For a long time, the use of NdFeB magnets is very common. With the change of time, the era of science and technology continues to move forward, and the use of NdFeB magnets has become more and more obvious. Deko NdFeB magnets not only have small size, light weight and strong magnetic properties, but also are the most reasonable and best magnets in this society. The most important raw materials of NdFeB magnets are neodymium metal, pure iron, iron boron alloy and other additives, so NdFeB magnets have such good performance. Although magnets bring us a lot of convenience, they also have certain harms. For example, magnetic electronic products such as keyboards and bank cards will be magnetized by magnets.

In the descaling and anti-scaling industry of NdFeB magnets, after the water is treated by high-strength NdFeB magnetization, the water molecular bonds are deformed at the same time in the firing angle and length, and the hydrogen bond angle is reduced from 105 degrees to about 103 degrees. The physical and chemical properties have undergone a series of changes, and the activity and absorptivity of the water have been greatly improved. The calcium carbonate in the water is flatly decomposed to form a relatively solid calcium bicarbonate during the cooking process, which is not easy to accumulate on the wall and is easily taken away by the water. The degree of polymerization of other water increases, and the dissolved solid materials become finer particles. After the particles are refined, the distance between the two ions is small, and it is not easy to agglomerate on the wall, and then achieve the effect of descaling.

In the rare earth functional material industry, high-performance NdFeB permanent magnet materials are mainly used, and high-performance NdFeB permanent magnet materials are mainly used in high-end application markets such as new energy and energy conservation and environmental protection, such as EPS, new energy vehicles, etc.

NdFeB magnet manufacturers follow the technological innovation of the automotive industry and human needs for energy conservation and environmental protection, and electric or hybrid vehicles with low energy consumption, low noise, and less exhaust gas have become the goals that everyone seeks. Bonded NdFeB magnets have the advantages of high magnetic performance, small size and high efficiency. The efficiency of motors using NdFeB magnets is 8-50% higher than that of ordinary motors, the power consumption is reduced by more than 10%, and the volume and weight can be increased by 30%. above. Complete the development of automobiles in the direction of miniaturization, light weight, high performance, energy saving and environmental protection.

As the third-generation rare earth permanent magnet material, NdFeB magnets have high performance and are widely used. However, it should be noted that in order to prevent corrosion damage, the surface of NdFeB magnets needs to be protected during application, such as using gold , zinc, etc. to stop electroplating, and surface spraying epoxy resin, etc.

What are the success points of NdFeB magnets? You must know that in today's society, after thousands of years of development, today's magnets have become an indispensable functional material in our lives. Through the advanced powder metallurgy process, alloys of different materials can be formed, which can achieve and exceed the effect of magnets, and can also maximize the magnetic force.

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Artificial magnets appeared in the 18th century, but the process of making higher magnetic materials was very slow until AlNiCo (AlNiCo) was produced in the 1920s. Ferrite (Ferrite) was produced in 1948. Rare earth magnets were produced in the 1970s [Rare Earth magnet] samarium cobalt (SmCo), and neodymium iron boron (NdFeB (NdFeB) was born in 1986, which is by far the strongest magnet in the world.

So far, physical magnetic technology has been further developed, and strong magnetic materials have also made components more miniaturized. In 1999, Zibo Shengjin Magnet broke through the industry precedent with its independent combination of 13000GS rare earth strong magnets, and it was quickly implemented in the industry. my country The rare earth magnet industry has ushered in a new world.

The temperature resistance of strong magnets is below 80 degrees. We only need to bake the strong magnet on the fire for a few minutes. After cooling, you put it around the iron block and find that it has lost its magnetism and can no longer be attracted.

The reason is that the strong magnets are magnetic because the iron atoms in the strong magnets are arranged in a regular manner. After it is heated, the original arrangement of the iron atoms is disordered, and thus the original magnetism is lost. In the same way, we can also demagnetize strong magnets in other ways.