Small DC motor: The curved shape concentrates the magnetic field, making it suitable for small DC motors used in toys, hobby projects, or some internal components in electronics. Magnetic stirrers: Rotating ferrite arc magnets can be used to generate rotating magnetic fields to stir liquids in closed environments, aiding in small-scale mixing tasks in laboratories […]
Here’s how to identify the Alnico magnets mentioned above: Visual clues: Luster: Alnico magnets usually have a metallic luster, while ferrites (ceramics) are usually dark gray and lack luster. Neodymium (NdFeB) magnets can also have a shiny appearance, but it may be a brighter silver or gray. Samarium cobalt magnets usually have a dark gray […]
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Surface coating is the most basic and common surface treatment method. Types of Coating The coating can be divided into electroplating, barrel electroplating, rack plating, electroless plating, and physical vapor deposition. Electroplating (EP) refers to the deposition of a metal or alloy layer with good adhesion on the substrate by electrolysis in order to obtain […]
Description A magnetic pump consists of three parts: a pump, a magnetic actuator, and an electric motor. The key component of the magnetic actuator is composed of an external magnetic rotor, an internal magnetic rotor, and a nonmagnetic isolation sleeve. When the electric motor drives the outer magnetic rotor to rotate, the magnetic field can […]
Background In the construction process of high-rise buildings now, all need to arrange outdoor construction elevators, and the construction elevator is arranged on the outer wall of the building. Each floor of the building is provided with a reserved opening opposite the construction elevator, that is, the elevator entrance, and construction personnel can enter each […]
A magnetic switch is an electrical switch that closes or opens contacts in a magnetic field. The switch remains on as long as a strong magnetic field is present and opens when the field is removed. Magnetic switches include reed switches, Hall sensors, and electromechanical relays. The simplest switches include magnetic window switches and door […]
The traditional saying is that their back electromotive force is different, BLDC is close to a square wave, and PMSM is close to a sine wave. In terms of control, BLDC generally uses a 6-beat square wave drive to control the phase and reverse time of the square wave, and PMSM uses FOC. In terms […]
Magnetic brakes and clutches use permanent magnets to generate resistive torque and require no electricity to operate, resistive torque is constant and independent of slip speed. By driving the body of our magnetic brakes and using the shaft as the output, these permanent magnet hysteresis brakes can be used as adjustable inline torque limiting magnets […]
The magnetic coupling mainly consists of an outer rotor and an inner rotor The magnetic coupling mainly consists of an outer rotor and an inner rotor. The inner wall of the outer rotor is covered with high-quality magnets, and the two adjacent magnets are arranged in opposite poles. The inner rotor also has two magnets […]