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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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About Electromagnets 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: 21

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What type of sensor needs a magnet? 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: 21

2023-08

What are the surface treatment methods for bonding neodymium iron boron magnets? 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.: 21

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What are the applications and impacts of neodymium iron boron magnets in industry? 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: 17

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Basic properties of magnets 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.: 17

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Introduction to permanent magnet suction cups 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: 17

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Magnet manufacturers introduce the composition and properties of magnets to you Firstly, as a magnet manufacturer, we will inform you that the composition of the magnet is formed by the arrangement of atoms such as iron, cobalt, and nickel through a special internal structure. The original magnet itself has magnetic moments. In general, the arrangement of these mineral molecules is relatively chaotic. And their magnetic regions interact with each other and do not show magnetism, but under the guidance of external forces (such as magnetic fields), the arrangement direction of their molecules will tend to be consistent with the magnet, and their magnetism will show a significant difference. Magnets are divided into permanent magnets and soft magnets. Permanent magnets add a strong magnet, which causes the spin of the magnetic material and the angular momentum of the electrons to be arranged in a fixed direction. Soft magnets add current (also a method of adding magnetic force), and removing the soft iron will gradually lose its magnetism. The earliest person who dis: 17

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Common chemical reactions At high temperatures, it easily oxidizes into iron oxide. 4Fe3O4+O2=high temperature=6Fe2O3It can react with reducing agents such as CO, Al, and C at high temperatures. 3Fe3O4+8Al=High temperature=4Al2O3+9FeFe3O4+4CO=high temperature=3Fe+4CO2Under heating conditions, it can react with reducing agent hydrogen gas. Fe3O4+4H2=△=3Fe+4H2OThe reaction between nitrogen dioxide and hot iron powder generates ferric oxide and nitrogen 3Fe+2NO2=high temperature=Fe3O4+N2Iron burns in oxygen to form ferric oxide 3Fe+2O2=ignited=Fe3O4The reaction between hot iron and water vapor generates ferric oxide, 3Fe+4H2O (g)=high temperature=Fe3O4+4H2React with acid Fe3O4+8HCl=FeCl2+2FeCl3+4H2O: 16

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Characteristics of permanent magnet suction cups 1) The permanent magnet suction cup adopts high-performance permanent magnet material Nd-Fe-B as the product core, making the product smaller in size, stronger in lifting force, and long-lasting in magnetic force.2) The permanent magnet suction cup has a safety factor of up to 3.5 times the maximum rated lifting weight.3) The bottom surface of the permanent magnet suction cup is designed with a "V" groove, which can lift corresponding round steel and steel plates.4) The permanent magnet suction cup can be used without electricity, saving the trouble of power supply.5) The optimized magnetic circuit design of the permanent magnet suction cup ensures almost zero residual magnetism.6) The professional design of the permanent magnet suction cup makes the product more aesthetically pleasing.Maintenance and upkeep1. Before using the suction cup, the surface should be wiped clean to avoid scratching and affecting accuracy2. The operating environment temperature is between -40C and -50C, and i: 15

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Design of permanent magnet suction cups 1. Permanent magnet suction cup magnetic system and yokeWhen designing permanent magnet suction cups, the first step is to carefully design the magnetic circuit. A good magnetic circuit structure can allow more magnetic flux to accumulate on the working surface as much as possible, meeting the requirements of lifting weight, and minimizing the use of neodymium iron boron materials. At the same time, when designing the magnetic circuit, careful consideration should also be given to the ease with which the operator can achieve work unloading. Solve technical difficulties such as high suction force of permanent magnet suction cups and difficulty in pulling the handle.The magnetic circuit design of a permanent magnet suction cup has two magnetic systems, which are divided into active and fixed parts. Change the state of the active magnetic system so that the working poles are in a state where the magnetic field is superimposed or reversed, and the magnetic field is cancelled out. At the sa: 15

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