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Definition of electromagnet:An electromagnet (solenoid) refers to a coil that is usually a long cylindrical shape. When current passes through it, it can act as a magnet, pulling the movable core into the coil. A simpler definition is that an electromagnet is composed of a coil and a movable iron core, used to convert electrical energy into mechanical energy. The emergence of electromagnets has a history of decades. The current electromagnetic products have a wide range of sizes, with diameters ranging from less than 4mm to over 400mm, and force outputs ranging from less than 10g to up to one ton.Characteristics of linear electromagnets:Linear electromagnets provide linear strokes, typically less than one inch in either direction. Linear electromagnets can be unidirectional or bidirectional. Linear electromagnets are usually divided into two types: pull type and push type: pull type refers to the electromagnetic force that pulls the punch into the electromagnet body; Push type refers t
Non contact sensors require the use of magnetic materials. Such as Hall sensors, car position sensors, motor speed sensors, weighing sensors, security alarm sensors, magnetostrictive displacement sensors, car brake sensors, car wheel speed sensors, magnetic control sensors, speed sensors, water flow sensors, inductive magnetic sensors, inductive sensors, etc.Sensors work together with magnetic steel to detect the size of magnetic fields, or use this principle to add magnetic materials to the sensor to detect ferromagnetic materials.Different sensors use different magnets, including sintered neodymium iron boron materials, injection molded magnets, ferrite magnetic rings, and bonded neodymium iron boron materials
The surface treatment of bonded neodymium iron boron magnet products mainly adopts epoxy resin [electrophoresis] method. In addition, coating and surface treatment processes such as acrylic resin electrophoresis, epoxy resin spraying, Teflon spraying, Perrin deposition, vacuum impregnation can also be carried out to meet the requirements of corrosion resistance, solvent resistance, and friction resistance for daily and long-term use in different environments. The specific coating requirements can be selected and stacked according to the environmental requirements of use.Bonded neodymium iron boron is commonly used in stepper motors, spindle motors, and various types of motors and sensors, such as stepper motors used in optical disc machines, photocopiers, and fax machines, instrument panels used in the automotive industry, electric seat adjustment motors, and airbag sensors.
Neodymium iron boron magnets are becoming an important factor affecting the development of manufacturing industries in various countries, and neodymium iron boron is one of the main raw materials for manufacturing environmentally friendly and energy-saving products.The application of neodymium iron boron in fields such as automobiles, compressors, and wind turbines is precisely based on environmental protection and energy conservation considerations. As an environmentally friendly and energy-saving functional material, neodymium iron boron will be more widely used by magnet manufacturers. In an era of increasing energy scarcity, the conversion of wind energy into electricity will undoubtedly be supported by government policies. Wind power generation has been implemented on a large scale in Europe. Previously, 1 megawatt units used approximately 1 ton of neodymium iron boron. Thanks to the rapid growth of the wind power industry, the use of neodymium iron boron in wind turbines will als
1. Properties of magnets: Magnets have magnetism and can attract iron objects.2. Magnets have magnetic poles, and every magnet manufacturer produces magnets with two types of magnetic poles: N-pole and S-pole, which exist in pairs.3. Temporary magnet and permanent magnet: When ferromagnetic materials are magnetized and easily lose their magnetic properties, they are called temporary magnets (such as iron); When ferromagnetic materials are magnetized and do not easily lose their magnetic properties, they are called permanent magnets (such as steel).4. The magnet manufacturer believes that when two magnets are close to each other, the same magnetic poles will repel each other and push apart, while different magnetic poles will attract and stick to each other. So it is said that the same poles repel each other, and the opposite poles attract each other.
In China's mechanical processing, mold manufacturing, metallurgy and other industries, some heavy steel or iron plates, precision or surface roughness requirements of steel processing products or semi-finished products, etc. were previously mostly lifted using steel wire rope bundling, or using electromagnets for lifting. However, electromagnets have a large volume, high cost, multiple faults, and maintenance difficulties. In addition, electromagnets consume a large amount of electrical energy during operation, and once power outage occurs, Accidents are prone to occur. With the emergence of high-performance neodymium iron boron rare earth materials, the development of magnetic tools using neodymium iron boron permanent magnetic materials has become a trend, and permanent magnetic suction cups have emerged.Permanent magnet suction cups, also known as magnetic suction cups or permanent magnet hoists, are essential tools for handling steel materials in machinery factories, mold facto
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