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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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Application Fields and Performance Characteristics of Aluminum Nickel Cobalt Magnets Aluminum nickel cobalt magnet is a common magnetic material with a wide range of applications and unique performance characteristics. In this article, we will explore in detail the application fields of aluminum nickel cobalt magnets and their performance characteristics in various fields.Aluminum nickel cobalt magnets have important applications in the field of electronic technology, especially in motors, sensors, and electronic components. Due to its high permeability and low hysteresis loss, aluminum nickel cobalt magnets are widely used in various motors, such as DC motors, stepper motors, and AC motors. In addition, aluminum nickel cobalt magnets are also used in the manufacturing of sensors because they can generate stable magnetic fields and can be used for measurement and control.In the automotive industry, aluminum nickel cobalt magnets also play a crucial role. It is widely used in electric and hybrid vehicle motors because of its high efficiency and stability, which can prov: 15

2023-11

How to choose a neodymium iron boron surface electroplating with good results? Neodymium iron boron magnets generally require electroplating to prevent corrosion due to their poor corrosion resistance. So, what should I plating the magnet for? What is the effect of plating? Regarding the surface plating effect of neodymium iron boron coating, we should first know which neodymium iron boron coatings can be plated with?What are the common coatings for neodymium iron boron magnets?Neodymium iron boron strong magnet coatings are generally plated with nickel, copper, chromium, gold, black zinc, blue white zinc, epoxy resin, etc. The color of the surface of the magnet varies depending on the electroplating process, and the storage time also varies.NI, ZN, epoxy resin: The effects of NI, ZN, epoxy resin, and PARYLENE-C coatings on the magnetic properties of neodymium iron boron magnets in three different solutions were compared and studied.Polymer materials>epoxy resin>NI coating>ZN coatingThe results show that in acid, alkali, and salt environments, the protective effe: 15

2023-11

Development Trends and Prospects of Rare Earth Permanent Magnet Material Manufacturing Industry In today's modern industry, rare earth permanent magnet materials play an important role. Among them, aluminum nickel cobalt magnets, as an important rare earth permanent magnet material, have excellent magnetic properties and wide application fields. This article will explore the development trend and prospects of aluminum nickel cobalt magnets in the manufacturing industry.Firstly, aluminum nickel cobalt magnets have a wide range of applications in the electronic field. With the continuous updating and upgrading of electronic products, the performance requirements for electronic components are also increasing. Aluminum nickel cobalt magnets have high coercivity and remanence, making them ideal magnetic materials in electronic products. Whether it's mobile phones, tablets, or televisions, stable and reliable magnetic materials are needed to ensure their normal operation. Therefore, with the continuous expansion of the electronic product market and increasing demand, the demand: 14

2023-11

The internal structure of atoms I have seen an example here where he compares atomic nuclei to the sun, and electrons outside the nucleus to planets orbiting the sun (but it should be noted that electrons outside the nucleus move irregularly), so the spin of electrons is like the rotation of the earth, and the orbital motion of electrons is like the revolution of the earth.Both the "rotation" and "revolution" of electrons generate magnetic moments (a physical property of magnets), where the spin generated is called spin magnetic moment, and the motion around the nucleus produces orbital magnetic moment.A magnetic moment is a vector with a direction, and the direction of the magnetic moment of a magnet points from its guide pole to the north pole, depending on its magnetism and magnitude.Although electrons are all the same, and the magnetic moment of electrons should also be the same, differences in the magnetic properties of substances can be caused by the different types and even the arrangement order of atoms and m: 14

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What is a magnet? We often say that a magnet, also known as a magnet, is a stone that can adsorb iron, as the name suggests. At first, people discovered a natural ore called magnetite (iron trioxide) that could adsorb iron products. After extensive attempts, they found that these stones could not only adsorb metals such as gold, silver, copper, but also objects such as bricks and tiles. They could only attract iron products.With the development of technology, the application of magnetism has become more widespread, including magnetic levitation, magnetic resonance, and even the previously proposed "electromagnetic cannon". Some drivers also place a magnet outside the exhaust pipe to prevent backflow. But do you know why magnets have magnetism? Do you really understand magnets? I once saw a question like this: Why don't there be magnetic gold, magnetic silver, or magnetic copper when there is a magnet?Later, with the development of magnetism, we referred to substances with the properties of attractin: 14

2023-11

How to restore magnetism when a magnet becomes weak Method 1: Re magnetizeRecharging is the most commonly used method to restore the magnetism of a magnet. The following methods can be used for re magnetization:1. Place the poles of the magnet closer to the poles of the stronger magnet and hold for a certain period of time.2. Wrap the magnet around a stronger magnet and rotate it repeatedly for a certain amount of time.Method 2: High temperature demagnetizationHigh temperature demagnetization can cause the magnetism of the magnet to disappear and then re magnetize it. The following methods can be used for high-temperature demagnetization:1. Place the magnet in the oven and heat it to 70-80 degrees Celsius.2. Hold for 10-15 minutes, then remove and cool.3. Then use the method of re magnetization for magnetization.Method 3: Demagnetizer demagnetizationA demagnetizer can completely eliminate the magnetism of a magnet and then re magnetize it. The following methods can be used to demagnetize the demagnetizer:1. Place the magnet in the demag: 14

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Permanent and non permanent magnets Magnets can be divided into "permanent magnets" and "non permanent magnets".What is a permanent magnet?As the name suggests, it is an object that can maintain its own magnetism for a long time without an external magnetic field. Generally, it can be maintained for more than 10 years. In ancient times, permanent magnets were all natural products, also known as natural magnets, but with the advancement of technology today, humans can also manufacture permanent magnets.Permanent magnets can be divided into two categoriesMetal alloy magnetIncluding samarium cobalt magnets (SmCo), aluminum nickel cobalt magnets (ALNiCO), iron chromium cobalt magnets (FeCrCo), etcAmong them, iron chromium cobalt magnets are known as transformers in permanent magnets, and alloy permanent magnets are the most deformable. They can be used for wire drawing (0.2-0.3mm), tube drawing, strip rolling, and various mechanical processing, and can be made into various complex shaped permanent magnet components, especial: 14

2023-11

Explanation of Magnetism Against Magnetism Effect You can find here thatThe former - the paramagnetic effect is determined by the inherent magnetic moment (total magnetic moment) of atoms (molecules). And the inherent magnetic moment can be zero, why? Think about it, there are actually two spin directions for electrons: up and down. In most substances, the number of electrons with upward and downward rotation is almost the same, and the spin magnetic moments they generate cancel out each other. Moreover, the orbital magnetic moments of electrons also cancel out each other due to different "revolution" directions, so only a small part or even zero of the inherent magnetic moment remains.The latter, the diamagnetic effect, is determined by the orbital magnetic moment of the electron, which can also be said to be determined by the orbital magnetic moment of all electrons in the atom. Under the action of an external magnetic field, this magnetic moment will never be zero because the atom will have electrons. This means that no matter what: 13

2023-11

The relative permeability of some ferromagnetic materials Metals such as iron, nickel, and cobalt belong to ferromagnetism, and their atomic structures are unique.In addition, ferromagnetic materials also have the following characteristics:As the external magnetic field B increases, the internal B '' of the medium also increases, but B '' does not have a linear relationship with B, as mentioned above μ Not a constant. When saturation is reached, B '' hardly increases, which is called magnetic saturation.Once ferromagnetic material is magnetized and the external magnetic field is removed, it still retains some of its magnetism, which is called remanence (some artificial magnets use the principle of greater remanence). When the intensity of the reverse magnetic field reaches H. At this time, B in the iron core is equal to zero, and the magnetic field strength H is at this point. It is called coercive force.If ferromagnetic material is heated, when its temperature is above a critical temperature T. At the critical tempera: 13

2023-11

Introduction to Magnetism Paramagnetic substanceAs the name suggests, this material will adapt to changes in the magnetic field, which means that the additional magnetic field is in the same direction as the external magnetic field, causing the magnetic field B '' in the magnetized medium to be greater than the original magnetic field B '', but the difference in magnitude between the two is very small, which means that the relative magnetic permeability μ It is a constant slightly larger than 1. Aluminum, chromium, manganese, nitrogen, and air are all paramagnetic substances.Diamagnetic substanceContrary to paramagnetic substances, diamagnetic substances resist changes in magnetic fields, meaning that the additional magnetic field after magnetization is reversed from the external magnetic field. The magnetic field B '' in the medium after magnetization is smaller than the original magnetic field B, and the difference in magnitude between the two is also very small, μ It is a constant sli: 13

2023-11

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