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磁铁的力量：它们如何影响我们的生活

磁铁的力量虽然看起来很小，但在我们的生活中起着至关重要的作用。它以一种无声而坚定的方式影响着我们的日常生活和工作。

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Do you know the drawbacks of ferrite magnets 1. Magnetic force difference. This is the biggest drawback of ferrite, and most of the reason for not choosing it is because its magnetism does not meet the requirements.2. Large volume. Weak magnetic force naturally requires a larger volume, as many high-tech products such as smartphones and robots currently use neodymium iron boron with small volume and strong magnetic force.3. Poor tolerance control. The tolerance of ferrite magnets is usually greater than that of neodymium iron boron, and of course, ferrite can also be precision machined. The magnetic ring can be ground internally and externally, but the cost is relatively high.4. It is not easy to process into complex and irregular magnetic shapes. This is also the main reason why most ferrite magnets we see are circular and square.Oh, so there are so many drawbacks to ferrite magnets, do you know all of them?: 16

2023-10

The magnetization method of injection molded magnets Injection molded magnets can be magnetized in various ways, such as inner and outer filling with radial multipole, axial multipole, single sided multipole, etc.Production process of injection molded magnets:During the molding process, the material is completely filled into the mold cavity at the highest concentration under strong injection pressure, and in addition, the material contains thermoplastic adhesives, resulting in good physical and mechanical properties of the magnet.Mainly based on temperature characteristics, strength, water absorption, solvent resistance, complexity of magnet shape, and compatibility with magnetic powder.Temperature characteristics: The maximum operating temperature of injection molded magnets depends on the magnetic powder and binder used. For example, the combination of ferrite powder with nylon 6 or PPS can pass the test at 180 ℃. Nylon 12 melts at temperatures above 170 ℃, so if the designed temperature of the magnet exceeds 150 ℃, nylon 12 is not rec: 16

2023-10

The purchased magnet has broken a lot Magnetic rings are easy to break, and this issue has always been a concern in the magnet industry. Magnetic rings are inherently fragile products, so how can we avoid this problem and why magnetic rings are so easy to break? The following magnet manufacturers will share their experience over the years with you.Strong magnets are inherently fragile because the materials they use are all rare earths, and these materials are easily broken no matter where they are used. However, if they are not made of these rare earth materials, they are equivalent to products, becoming waste, lacking characteristics, ineffective, and useless. So we should try our best to avoid it being broken, especially during production, we must handle it with care.Is there a magnet that won't break? It is also impossible to achieve something that is not broken, and we can only try to avoid it and do it better.In terms of packaging, workers also need to pay special attention, handle with care, and add foam to shock: 16

2023-10

The main application fields and performance characteristics of soft magnetic ferrite Soft magnetic ferrite is a ferrous magnetic oxide mainly composed of Fe2O3, produced by powder metallurgy method. It mainly includes several types such as Mn-Zn, Cu-Zn, Ni-Zn, etc. Among them, Mn-Zn ferrite has the highest production and usage, and its resistivity is low, ranging from 1 to 10 ohms/meter, generally used at frequencies below 100kHz. The resistivity of Cu Zn and Ni Zn ferrites ranges from 102 to 104 ohms per meter, with low losses in the radio frequency range of 100kHz to 10 MHz. They are commonly used in radio antenna coils and radio intermediate frequency transformers.At present, ferrite soft magnets in China are mainly used in the fields of communication, home appliances, and new energy. In the future, soft magnetic materials will be mainly applied in new infrastructure markets such as high-end consumer and industrial electronics, new energy, cloud computing, Internet of Things, 4G and 5G communication, power supply devices, and new consumer electronics.: 12

2023-10

Magnetic function testing after high-temperature sintering Density detection after high-temperature sinteringAppearance scale inspection after high-temperature sinteringAnalysis of carbon, oxygen, and nitrogen after high-temperature sinteringFinally, a demagnetization curve is drawn using a magnetic tester to determine whether the blank meets the national standardDue to the large proportion of neodymium, iron, and boron being composed of iron elements, neodymium, iron, and boron are highly susceptible to oxidation when exposed to air or humid environments for a long time. Magnet electroplating is an important process for beautifying the appearance of magnets and adding magnets for preservation. The surface treatment of magnets mainly includes zinc, black zinc, nickel, black nickel, copper, gold, silver, epoxy resin, etc. The color and preservation time are also different depending on the surface electroplating, Each has its own advantages and disadvantages.Magnetization in the order of magnet orientation and formation is to magnetize magnetic: 12

2023-10

Magnet orientation and forming sequence Some netizens want to know the orientation and forming order of magnets. Today, let's introduce them to everyone.The magnetic powder of the magnet has a low density in the green body after orientation, molding, and isostatic pressing, which is a negative factor in production. The green body also contains many pores, which simply adsorb a large amount of gas and water, bringing trouble and difficulty to the next process. Due to the low density of the green billet, high shortening rate during sintering, simple deformation, and oversized scale, it is necessary to conduct sintering, and the process requires high experience in sintering operations.During the sequential process of magnet orientation and molding, the green billet needs to go through two processes: sintering and aging when placed in the sintering furnace.1. Sintering; During a period of insulation in the high temperature range, the important improvement in sintering density is achieved. The relative density has increased f: 12

2023-10

Picture of 0.5mm thick ultra-thin magnet and reference for magnetic force size The mini magnet is really small, and even using a coin as a reference is slightly insufficient. It seems difficult to imagine its specific size alone. Today, the permanent magnet manufacturer has brought you a 0.5mm thick neodymium iron boron thin sheet magnet thickness map and magnetic reference, hoping to be helpful for your work.The apparent magnetic size of a magnet, also known as Gauss, is directly related to the thickness of the magnet. The thicker the diameter or length, the stronger the magnetic force. According to Gauss meter measurements, a neodymium iron boron thin plate magnet with a diameter of 5 * 0.5mm has an apparent magnetic force of about 1000gs.If you have similar ultra-thin magnets (neodymium iron boron or ferrite) that require price evaluation or sample preparation, please contact the permanent magnet manufacturer.: 11

2023-10

List of Main Application Fields of Sintered Neodymium Iron Boron Magnets of Various Grades Friends who have bought neodymium iron boron powerful magnets know that neodymium iron boron magnetic materials have multiple performance grades, because when you inquire with the magnet manufacturer or take samples, you are usually asked what performance grades or grades of neodymium iron boron you need. Magnets used for general packaging handbags and leather goods are usually N series, N35 or lower. The magnets used in the motor usually need to withstand high temperatures of over 100 degrees Celsius, so there are more H and SH materials. Therefore, when purchasing magnets, it is also necessary to pay attention, otherwise it may result in the purchased magnets not working properly and wasting money in vain.Below is an introduction to the main application fields of sintered neodymium iron boron magnetic materials of various grades. The N series and M series are mainly used in MRI, audio home appliance series products, VCM, magnetic separators, and consumer electronics. The H series is: 11

2023-10

Some Physical Characteristics of Sintered Permanent Ferrite Magnets Permanent magnet ferrite materials are generally divided into two categories, namely sintered permanent magnet ferrite materials and bonded permanent magnet ferrite materials. Each type can also be divided into isotropic materials and anisotropic materials based on its performance.Our company's ferrite magnetic materials mainly produce sintered ferrite magnets, injection molded ferrite magnets, and ferrite magnetic components. Today, we will mainly talk about some physical properties of sintered permanent magnet ferrite, so that you can have a basic understanding of the physical properties of ferrite.What is the recovery magnetic permeability of ferrite? What is the distance between the Curie temperature of ferrite and the temperature? The density and resistivity of ferrite, etc.We have been specializing in the manufacturing of motor magnets for over ten years, carefully producing products for each customer, and satisfying them with quality. Welcome to process and customize with pi: 11

2023-10

Discussion on the Function and Application of Plastic Magnetism (Injection Magnetism) Around Us When it comes to plastic magnets (injection molded magnets), I believe everyone is quite unfamiliar because there are very few places where people can directly see plastic magnets. Because these plastic magnets are stored inside electrical appliances and motors, we cannot directly see plastic magnets. However, plastic magnets play a very important role around us. Today, the magnet manufacturer Xiao Fu will explain in detail what plastic magnets are and their characteristics? And what kind of role these plastic magnets play around us, I hope everyone can understand these functions of plastic magnets.Plastic magnetic material is a new type of functional polymer composite material, which is an important basic material in the field of modern science and technology. Compared with sintered magnetic materials, magnetic plastics have the advantages of low density, high impact strength, controllable magnetic particle content, good chemical stability, and no cracking during use. Various resins s: 09

2023-10

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