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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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Magnetic field strength and suction reference of a 3mm diameter neodymium iron boron circular magnet A 3mm diameter magnet is also a commonly used small magnet in the market, usually made of rare earth neodymium magnet material. If replaced with other materials, there is no magnetic force. The commonly used specifications include 3x1mm, 3x1.5mm, 3x2mm, 3x3mm, 3x4mm, D3x5mm, etc. It is suitable for various precision electronics, handicrafts, packaging handbags, instruments, etc. Today, we will introduce how many Gauss and tensile strength this 3mm diameter small magnet has.The commonly used coating for small magnets with a diameter of 3mm is zinc plating or nickel plating. You can also choose gold plating or black epoxy.What is the magnetic field strength and tensile force of a surface with a diameter of 3mm?N35 grade 3x5mm neodymium circular magnet, thickness magnetization, surface magnetism of about 4000 Gauss, vertical tensile force of about 0.24kgN42 grade D3x1.5mm circular magnet, approximately 3300 Gauss, with a vertical tensile force of approximately 0.16kgN42 circular small mag: 09

2023-10

Introduction to the entire production process of large and small head shaped magnets Previously, I also mentioned the function of the large and small end magnets, and the specifications of the large and small end magnets. I won't go into much detail here. If you want to know more, you can check at the end of the article. Today, I will mainly talk about the production process and processing flow.Take the specifications of a large and small magnet for example, D12 * 3+d10 * 3. First of all, it is necessary to make a cylinder with raw materials of 12 * 34. When it comes to this raw material, it is necessary to specify a material that cannot be added with lanthanum or cerium. Although the cost may vary by 5 yuan per kilogram, adding this component to the material is relatively difficult to reprocess and also affects the appearance of the product. The finished product will be pitted and unsightly, and the next step will be taken when the raw materials are fired, The slicing process can produce 5 pieces of 12 * 6 from a single column, with 1.5 removed material skins and: 09

2023-10

Three parameters and indicators for measuring magnets Whether a magnet is good or not depends mainly on three parameters: residual magnetism Br, coercive force Hc, and magnetic energy product BHmax. Today, we will mainly talk about the indicators for measuring the magnetic performance of a magnet, corresponding parameters, as well as definitions and interpretations.1、 StabilityThe main parameters are residual magnetization and maximum magnetic energy product. The higher the value, the stronger the magnetic field, and the better the magnet can maintain its magnetic performance.2、 Anti demagnetizationThe main parameters are coercivity and intrinsic coercivity. The higher the value, the stronger the anti demagnetization ability and the higher the efficiency of use.3、 Temperature resistanceThe main parameter is the Curie temperature, which is the highest usage temperature. The higher the value, the better the temperature resistance performance.: 08

2023-10

Definition and advantages and disadvantages of internal and external magnetization of magnetic steel What are internal magnetization and external magnetization?The shapes of magnets for internal and external magnetization are mainly arc-shaped, circular in shape, and mostly radially magnetized. For internal magnetization, the inner arc or inner circle of the arc-shaped or annular magnet is strong in magnetism, while for external magnetization, the outer arc or outer circle of the magnet is strong in magnetism. It is commonly used in DC motors, sensors, and other fields.What are the advantages and disadvantages of internal and external magnetization?The disadvantage of radial magnetization is that it requires a high magnetic field and requires a lot of winding. The advantage is good heat dissipation.The disadvantage of radial internal magnetization is limited winding and poor heat dissipation. The advantage is easy saturation and simple structure.The above is the meaning, advantages and disadvantages of internal and external magnetization introduced to you by the editor of the motor ma: 08

2023-10

Introduction to Magnetic Property Grades and Physical Characteristics of Bonded Neodymium Iron Boron Magnetic Particles In recent years, the application of bonded neodymium iron boron magnets has become more and more widespread, indicating that their advantages such as dimensional accuracy, one-time molding, single-sided wall thickness, and multipolar orientation cannot be compared to many magnet materials. Today is not mainly about the characteristics of bonded neodymium iron boron or the application of bonded neodymium iron boron magnets, but about the performance grade, Curie temperature, and some physical properties of bonded neodymium iron boron.What are the physical characteristics of bonded neodymium iron boron magnets?Density of bonded neodymium iron boron: 5.8-6.2g/cm3Curie temperature of bonded neodymium iron boron: 310-340 ℃Hardness of bonded neodymium iron boron: 80-120HvBonded neodymium iron boron resistivity: 0.026&Omega CmBonded neodymium iron boron compressive strength: 3kgf/mn2Bonded neodymium iron boron compressive bending: 25kg/mn: 08

2023-10

Introduction to the Use and Common Specifications of Ferrite Rotor Magnetic Steel for Electric Motors Commonly used: washing machine water pump, dishwasher water pump, aquarium submersible pump, micro water pump, automotive motor, electronic instrument, etc.Introduction to other commonly used specifications and applications of ferrite rotor magnetic steelCommon specifications include:D20 * d11.6 * 24.8mm 24 pole (for variable frequency air conditioning motor rotor)D16 * d11.9 * 12.9mm 10 pole (instrument motor rotor)D20 * d15 * 16 24 pole (variable frequency air conditioning motor rotor)D54 * d35.5 * 25.7 8-pole (cabinet air conditioning motor rotor)D22 * d18 * 27 24 pole (variable frequency air conditioning motor rotor)D63 * 50 * 40 4-pole (Santana engine motor rotor)D16 * 5 * 20 4-pole (car sunroof motor)D16 * 5 * 28 4-pole (motor rotor magnet)D21 * d6 * 32 4-pole (rockery fountain water pump motor): 08

2023-10

A simple and fast method for distinguishing magnesium zinc and nickel zinc ferrite ferromagnetic rings There are also many answers online about how to distinguish between magnesium zinc and nickel zinc ferrite magnetic rings. Most of them talk about manganese zinc ferrite and nickel zinc ferrite, rather than magnesium zinc. Magnesium and zinc may have less contact and may not be very clear. Below, the editor will share a simple and quick method to distinguish magnesium zinc and nickel zinc ferrite, hoping to be helpful to you!Adobepdff: The simplest way is to estimate the density. Magnesium zinc density is much smaller than nickel zinc density, or it can measure high-frequency inductance. At high frequencies, nickel zinc has obvious advantages.T2Q: Using detection element frequency, the difference between the two is the content of ironWonshen: Nickel and zinc are non-conductive, while magnesium and zinc are conductive. There is a significant difference in the breakdown voltage of the magnetic core when these two materials are used as withstand voltage wires.: 25

2023-09

Application and magnetic properties comparison of barium ferrite and strontium ferrite Everyone is familiar with ferrite, which can be divided into isotropy and anisotropy. According to different molding processes, anisotropic ferrite can be divided into dry pressing and wet pressing. According to the main components, ferrite permanent magnets are mainly divided into two types: barium ferrite (BaO · 6Fe2O3) and strontium ferrite (SrO · 6Fe2O3). Below, we will introduce the directionality, characteristics, and magnetic properties of barium ferrite and strontium ferrite.In recent years, due to environmental and health reasons, barium based ferrites have been discontinued, and currently strontium based ferrites are mainly used in the market.The main uses of barium ferrite and strontium ferrite;The main products of permanent magnet ferrite are anisotropic series, which are particularly suitable for use as permanent magnets for small generators and motors. They can replace aluminum nickel cobalt permanent magnets and are used for making permanent magnet ignition motors, perma: 25

2023-09

What are the performance characteristics of soft magnetic ferrite? The maximum magnetization can be achieved with the smallest external magnetic field, which has low coercivity and high permeability, making it easy to magnetize and demagnetize. Generally, soft magnetic materials have narrow hysteresis loops with coercivity below 100A/m.Special Introduction to the Segmentation Problem of Permanent Magnets (Magnetic Tiles) in Electric Motors1. What happens when the magnetic tile segments of a permanent magnet motor are different in length?This depends on the specific situation, depending on whether the indexing is different on the circumference or the thickness is different in the axial direction? If the indexing on the circumference is not the same, it will definitely not be possible, as it will result in different numbers of poles and magnetic flux per pole of the motor. This is not allowed or necessary. If the axial size of the magnetic tile is inconsistent, it is acceptable, as long as it is fully arranged in the length of the iron core.2. What is t: 25

2023-09

Anisotropic ferrite radial multipole magnetic ring The production of Y30BH anisotropic ferrite radial multipole magnetic rings has always been a technical challenge in the magnet industry. Ferrite radial bipolar magnetic rings are easy to produce, and most magnet factories can produce and process them. However, the production process of ferrite radial multipole magnetic rings is limited by their strict technical advantages, especially for ferrite radial magnetic rings with large product specifications, which require strong technical support.The figure below shows an 8-pole magnetic ring filled outward with sintered ferrite, with a surface magnetism of over 1900, which can basically reach a peak of ferrite magnetic strength.After the anisotropic ferrite magnetic ring undergoes mold pressing production, a matching magnetization fixture is required to achieve radial multipole magnetization. Usually, the mold cost of a conventional ferrite radial multipole magnetic ring and the magnetization fixture cost vary from 18000 to 25000 yuan, and: 25

2023-09

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