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How to consider the specifications and types of magnets

When choosing NdFeB magnets, customers should choose the magnet trademark suitable for them according to their working temperature. If the working temperature is higher than the...

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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
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