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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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China's neodymium iron boron industry has completed technological accumulation and is accelerating technological innovation Sintered neodymium iron boron magnets are produced through powder metallurgy technology, with approximately 16 main production steps. Among them, raw material preparation (type of magnetic powder, raw material cost), sintering process, surface treatment, annealing, and post-treatment all significantly affect the performance of the magnets. These main links are also the main direction for the rapid progress of China's neodymium iron boron permanent magnet industry.Firstly, in terms of magnetic powder preparation and raw material ratio, China has successively broken through processes such as hydrogen explosion powder production and dual alloy ratio, solving the internal generation of alpha in the melting of neodymium iron boron ingots caused by the decrease in rare earth element ratio during the traditional neodymium iron boron firing process- Fe precipitation leads to a decrease in the content of Nd2Fe14B, which affects subsequent powder making, sintering, and post-treatment, thereb: 12

2023-12

Introduction to specifications, dimensions, and materials of magnetic tiles for 130 DC motor motors 130 DC motor magnetic tile is a widely used magnetic tile product, with different materials depending on the customer. It mainly uses neodymium iron boron material, ferrite material, and bonded neodymium iron boron material. The central magnetic force of bonded neodymium iron boron can reach about 1000 Gauss, which is about 20% higher than that of wet pressed magnetic tiles.Introduction to the specifications of 130 DC motor magnetic tiles;They are all 130 DC motor magnetic tiles, and there may be slight differences in size. Common specifications include R9.6 * r6.9 * W14 * h13, R9.6 * r6.9 * W14 * H12 * t2.8, and (R10-r8) * 14 * 13, where 14 represents chord length and 13 represents height, etc.The above is an introduction to the specifications, dimensions, and materials of 130 DC motor magnetic tiles. If you have a quotation for magnetic tiles, please feel free to make samples, or if you are interested in mold making, please feel free to contact us.: 12

2023-12

How to choose between sintered bonding and hot pressed neodymium iron boron in procurement? According to different production processes, neodymium iron boron permanent magnet materials can be divided into three types: sintering, bonding, and hot pressing. Today, we will talk about the competition and advantages among these three types of neodymium iron boron.Competition and advantages among the three major neodymium iron boronSintered neodymium iron boron, bonded neodymium iron boron, and hot pressed neodymium iron boron can have common application areas, mainly manifested in micro electric motor products, so there is competition. However, their subtle absolute advantages also make them occupy their own unique applications.Comparison of Three Major Neodymium Iron BoronsSintered neodymium iron boron flake and tile shaped products (neodymium iron boron strong magnetic tiles) are easy to manufacture and process, thus having batch and cost effects; Bonded neodymium iron boron is skilled in the manufacturing of complex shaped (irregular) products, which can be said to be unique. H: 12

2023-12

The Earth is essentially a huge magnet The Earth is essentially a huge magnet with corresponding magnetic north and south poles, thanks to our molten iron outer core. The teardrop shaped magnetic field generated by the Earth is flattened by the solar wind, known as the magnetosphere, ensuring the operation of our compass, providing brilliant aurora, and even protecting us from harmful cosmic radiation. This is crucial for protecting the atmosphere that we long for.Magnetized particles in lava on the Earth's surface record the direction of our planet's magnetic field. According to National Geographic, this is how scientists can distinguish between the changes in Earth's magnetic poles over time and the gradual movement of tectonic plates where we live.In recent years, the changes in the Earth's magnetic poles have been accelerating. Some studies have shown that their annual driving speed is as fast as 35 miles. This may disrupt the navigation system and cause trouble for travelers.Our obsession with magnetism: 12

2023-12

How does a magnet work? Magnetism is the force exerted by magnets - objects that repel or attract each other. This powerful physical phenomenon is a component of electromagnetics and one of the fundamental forces of nature.The motion of charged particles found in all substances releases electric currents that generate magnetic fields. These particles become tiny magnets, each with a North and South pole. Technically speaking, all matter is influenced by the magnetic force that permeates our universe. According to the BBC, some of these impacts are more pronounced than others.Usually, the magnetic field generated by these particles is random, which means their North and South poles cancel out each other. Some objects - from large chunks of iron ore to letter magnets stuck to refrigerators - have magnetic fields arranged in the same direction. According to Live Science, as the velocity of these charged particles increases, the magnetic field of these objects becomes stronger.Magnetic force is a mysterious force: 11

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How is a magnet made Material preparation: Select appropriate magnetic materials, such as iron oxide and cobalt. These materials need to be finely purified and processed to ensure their purity and crystallinity.Mixing and melting: Mixing magnetic materials with other appropriate additives (such as carbon or titanium) to form the raw material for magnets. These raw materials are usually provided in powder form. Then, heat the raw materials to a high temperature to melt them.Forging and forming: Pour molten raw materials into pre prepared molds. The shape of the mold determines the shape and size of the final magnet produced. After cooling and solidification in the mold, a preliminary shaped magnet was obtained.Magnetization: Magnetizing a preliminary shaped magnet. This step can be achieved through various methods, such as using a powerful electromagnetic stone or exposing the magnet to a constant magnetic field. After magnetization, the magnet will gain long-lasting magnetism.Processing and processing: Pro: 11

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What are the uses of magnets? We already know what magnets are, why they can attract or repel each other, and how they generate a magnetic field. What can we do with magnets?There are many things around us that use magnets, such as compasses, speakers, headphones, electric motors, generators, transformers, refrigerator doors, and so on. These things all utilize various characteristics and functions of magnets, such as indicating direction, converting sound, converting electrical energy, storing information, and so on.In addition to these common uses, there are also some more advanced applications, such as magnetic resonance imaging in medicine, high-speed trains in transportation, superconducting circuits in science, and so on. These uses utilize some special physical phenomena and techniques, such as nuclear spin resonance, superconducting effects, quantum interference, and so on.Magnets are a very magical and interesting physical phenomenon, which not only allows us to feel the most mysterious forces in nature, b: 11

2023-12

How Magnets Are Made I don't know if anyone has had such an experience, which is that the thing they really enjoyed playing with in class when they were young was a magnet, and because magnets can suck up iron or some metal products, generating a certain amount of attraction, it also made us children who didn't have too many toys play with great fun when we were young, but many people don't know how magnets are made? Today, the editor will show you how to make a magnet.We all know that magnets are divided into permanent magnets and non permanent magnets. Generally speaking, what we often see is permanent magnetic magnets, while non permanent refers to some magnetic devices that only have magnetism under specific circumstances. Generally speaking, electromagnets are the most common.Firstly, in the manufacturing process of magnets, the first step is casting. Copper, sulfur, nickel, iron, aluminum, and titanium metals are first melted into liquid in an electromagnetic furnace, and then the liquid: 08

2023-12

What you don't know about the Hall induction magnetic ring of the motor Brushless motors and some fixed speed motors often require the use of Hall induction magnetic rings, also known as Hall induction magnetic poles in the brushless motor industry, because Hall induction magnetic rings are generally multipole magnetic rings (multiple N S), and their working principle is to rely on the multiple magnetic poles of the magnetic ring to induce Hall components, in order to test the speed and efficiency of the motor, and to control the operation of the motor based on the signals provided by the Hall induction magnetic ring.The Hall induction magnetic ring generally does not require too strong magnetism. As long as multiple magnetic poles are arranged and can provide magnetic pole signals to the Hall element, the Hall element can receive signals and work normally. Therefore, Hall induction magnetic rings are mostly isotropic ferrite magnetic rings, which are magnetically stable and have distinct magnetic poles, providing a stable magnetic pole signal for Hall ind: 08

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The main uses of different types of magnets 1. Neodymium iron boron magnet Rare earth permanent magnet is a contemporary strong magnetic permanent magnet, and its application is also common.It is specifically applied in various industries such as electroacoustics, permanent magnet DC motors, communication, automotive electronics, magnetic mechanical equipment, aerospace, electronic computers, electrical products, medical machinery, office systems, toys, packaging boxes, luggage and leather products, magnetic decorations, etc.2. Permanent magnet ferrite is used as a constant magnetic field in electricity meters, generator sets, telephones, speakers, televisions, and microwave heating components. It is also used in recorders, pickups, speakers, and magnetic cores for various instrument panels, used in electronic products such as radar detection, communication, navigation bars, and monitoring.3. The samarium cobalt magnet can operate at temperatures up to 300 degrees Celsius, while also possessing corrosion resistance and oxidation: 08

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