Some friends have asked whether the magnet is strong or weak. Today, I will share with you the popular science.
Whether the magnet is strong or weak depends on the magnet material
Different people have different ideas about strong magnetism. Some people even connect strong ferrites together, which is actually wrong. Generally speaking, strong magnetism refers to NdFeB magnets (a rare earth magnet) by default. , while ferrite is called general magnetism.
Is it feasible to use a Gauss meter to measure the Gauss of a magnet to determine whether the magnet is strong or weak?
Basically feasible, why say basic? Mainly because there is a knowledge that many people do not know, that is, the Gauss value of a magnet is inversely proportional to the size of the magnet, and the Gauss value measured by a large NdFeB magnet will not be larger, such as seven or eight hundred, There are thousands of Gaussians, and ferrite can also reach this value. Generally, the surface magnetic field strength of NdFeB will be higher than 2000 Gauss, while the general magnetic field of ferrite will be lower than this value.
Some people still don't understand, let's take a look at the difference between them.
First of all, we first distinguish the primary color of NdFeB from gray and white. After the finished product is processed, the surface is generally electroplated with anti-oxidation treatment, galvanized or nickel-plated. After electroplating, the surface becomes silver-white, and the broken section is gray-white.
The surface of the ferrite magnet is jet black. Generally, the product does not need electroplating treatment (strong anti-corrosion and anti-rust ability), so the outer layer is still jet black, and the inside is jet black when broken.
In terms of weight, it can be distinguished from strong magnetic or weak magnetic. NdFeB strong magnet is a magnetic material product made of rare earth components extracted and sintered. The density of NdFeB is generally 7.5, and the weight is relatively heavy. The density of ferrite is generally It is 4.8, which is lighter than NdFeB.
The above is what Courage Xiaofu, a powerful magnet processing factory, introduced to you about whether the magnet is strong or ordinary. Our company produces and sells all kinds of permanent magnets. If you need a quotation, you can contact us for samples.
Buy thin ring magnets, customize ultra-thin ring neodymium magnets, you can contact China's pneumatic magnet manufacturers for quotation, we have a great price advantage for small precision strong magnets, many customers in the United States, Turkey and other countries choose to cooperate with us, today's size of the outer diameter of 9.2mm, inner diameter of 5mm, thickness of 1mm, galvanized surface...
This product is a high-performance 8-pole ring magnet with radial magnetization. The material is ferrite. It belongs to a ferrite multi-pole magnetized ring. The outer diameter of the magnet is 75mm, the inner diameter is 51mm, and the height is 35mm....
The sample is M10 countersunk hole square NdFeB magnet, the length and width are 75mm, thickness is 25mm, with strong magnetic strength, specializing in heavy industry, machinery and equipment, salvage, etc., welcome to bring quantities to consult the price....
Sample display is a N52 grade ultra-thin rectangular block neodymium magnet, length size 8mm, width 1.8mm, thickness is only 0.6mm, can be affixed with adhesive backing, scribing marking, although the size is small, but still has a certain degree of magnetism, suitable for use in a number of precision instruments, meters, handicrafts, toys....
This is ring-shaped neodymium magnet with an outer diameter of 4mm, a thickness of 4mm, and a middle hole of 1.6mm. It is N48 grade, with a surface magnetic force of about 3900 Gauss. It is produced and photographed by the courage magnet manufacturer carrich. If you are interested in this product, please leave us a message or send us an email....
Buy small hole radial magnet ring, high precision radial cylindrical magnet with small hole, welcome to contact Courageous Magnet Manufacturer, we have many customized cases, such as the one you see now, belongs to the motor radial magnet, outer diameter 2.5mm, center hole 1mm, height 4.8mm, N48H grade...
This product is a rectangular pot magnet with a hole, usually a counterbore. It is used together with screws. There are one with one counterbore and two with two counterbore holes. It is suitable for fishing, lifting metal objects, kitchen and bathroom hooks, etc., rectangular Can magnet specifications are customized according to customer requirements. Please contact us for prices....
Our company is a manufacturer of permanent magnets for electric motors, we can provide you with multi-pole ring magnets made of various materials, you are now browsing this is an injection molded ferrite ring, OD 41mm, hole 35mm, height 24.5mm, radial 4-polar magnetization, surface magnetic strength of 750 gauss or so, there are molds and samples, welcome to inquire about the price....