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Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd.
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Established in 2008, located in Dongguan City, Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd. is a high-tech manufacturer for magnet products, we mainly specialize in permanent magnet, ferrite magnet and rubber magnet, etc.We can custom the different size and shape magnets according to customer's requirement, sample order is accept. Our products are widely used in areas of industry, agriculture, defense, petrochemical, aerospace, navigation, computer science, biological ...
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Million+
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Million+
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China Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd. High quality
Trust Seal, Credit Check, RoSH and Supplier Capability Assessment. company has strictly quality control system and professional test lab.
China Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd. DEVELOPMENT
Internal professional design team and advanced machinery workshop. We can cooperate to develop the products you need.
China Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd. MANUFACTURING
Advanced automatic machines, strictly process control system. We can manufacture all the Electrical terminals beyond your demand.
China Dongguan Vision Plastics Magnetoelectricity Technology Co., Ltd. 100% SERVICE
Bulk and customized small packaging, FOB, CIF, DDU and DDP. Let us help you find the best solution for all your concerns.

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N52 Arc Neodymium Magnets One Side Flat One Side Curved As Motor Rotor For Electricity Supply
N52 Arc Neodymium Magnets One Side Flat One Side Curved As Motor Rotor For Electricity Supply Overview: N52 arc neodymium magnets are powerful permanent magnets made from an alloy of neodymium, iron, and boron. They are commonly used in various applications, including electric motors, due to their strong magnetic properties.   Design: Shape: These magnets typically have one flat side and one curved side, allowing them to fit snugly into rotor assemblies. Grade: N52 denotes the strength of the magnet, making it one of the strongest commercially available grades. Applications: Electric Motors: Ideal for use in brushless DC motors or stepper motors, where efficient magnetic performance is crucial for energy conversion. Generators: Useful in power generation applications, where rotation in a magnetic field is required to produce electricity. Benefits: High Magnetic Strength: N52 magnets provide a strong magnetic field, improving the efficiency and performance of motors. Compact Size: Their strength-to-weight ratio allows for smaller and lighter designs without sacrificing power. Durability: Neodymium magnets are resistant to demagnetization, ensuring long-term performance in various environments. Considerations: Temperature Sensitivity: N52 magnets can lose their magnetism at high temperatures, so it's essential to consider thermal management in designs. Brittleness: These magnets can be brittle, so care must be taken during handling and installation to avoid chipping or breakage. Conclusion: N52 arc neodymium magnets are an excellent choice for motor rotors in electricity supply applications, providing high strength and efficiency in a compact form factor. When designing systems that utilize these magnets, be mindful of their temperature and handling characteristics to ensure optimal performance.
Applications of Magnets in Drones
Applications of Magnets in Drones Magnets play a vital role in various aspects of drone technology. Here are some key applications:   1. Motors Brushless DC Motors: Neodymium magnets are commonly used in the rotor of brushless DC motors, which drive the propellers. Their strong magnetic field enhances motor efficiency and performance. 2. Sensors Magnetic Sensors: Drones often use magnetic sensors (like magnetometers) for navigation and orientation. These sensors help determine the drone's heading relative to the Earth's magnetic field. 3. Gimbals and Stabilization Magnetic Couplings: In camera gimbals, magnets can be used for stabilization mechanisms, allowing for smooth motion and reducing vibrations during flight. 4. Payload Release Mechanisms Magnetic Release Systems: Drones equipped with payloads can use magnets for quick release mechanisms. This is particularly useful for delivering packages or dropping payloads in specific locations. 5. Battery Management Magnetic Battery Connectors: Some drones use magnetic connectors for batteries, allowing for quick and easy attachment and detachment while ensuring a secure connection. 6. Landing Gear Magnetic Landing Gear: Some designs incorporate magnets in landing gear to help secure the drone during landing or to assist in automatic deployment. 7. Anti-Collision Systems Magnetic Sensors for Obstacle Detection: Drones can use magnetic sensors to detect nearby metallic objects, helping avoid collisions during flight. Conclusion: Magnets are integral to the design and functionality of drones, enhancing performance, navigation, and user experience. As drone technology evolves, the use of magnets is likely to expand, leading to more innovative applications.
Application of NdFeB Magnets in Drones
Application of NdFeB Magnets in Drones   The application of NdFeB magnets in the field of UAVs is mainly reflected in their characteristics as high-performance permanent magnet materials. These characteristics make NdFeB magnets an important part of UAV motors and related equipment. Specifically, NdFeB magnets are widely used in brushless motors for drones due to their small size, lightweight, and strong magnetic properties. Compared with brushed motors, brushless motors have the advantages of smaller friction and lower losses, low heat generation, long service life, and low noise. NdFeB magnets are an indispensable part of this motor. In the application of drones, NdFeB magnets are not only used in brushless motors but also in many aspects such as propeller motors, sensors, clamping and adsorption devices, guide rails, and guide systems. These applications demonstrate the key role of NdFeB magnets in improving drone performance, such as increasing carrying capacity and flight time by reducing motor weight and improving the overall performance of drones by optimizing motor design.     Iron-boron (neodymium-iron-boron) magnets are widely used in various components of drones due to their high magnetic strength, compact size, and high efficiency. Here are some key applications of NdFeB magnets in drone technology: Drone Motor NdFeB magnets are critical to the motors that power drone propellers. Permanent magnet synchronous motors (PMSM) used in drones have NdFeB magnets embedded in their rotors. These magnets create a magnetic field that allows the motor to efficiently convert electrical energy into mechanical force to propel the drone. Drone Sensor NdFeB magnets are used in various sensors that monitor and control drone movement. Motion sensors rely on NdFeB magnets to accurately detect speed, position, and distance. The Hall voltage generated by the magnetic flux density is used as the sensor output. Drone Fixture Some drones are equipped with magnetic grippers that use NdFeB magnets to pick up and manipulate objects. These grippers feature flat magnetic surfaces that can lift ferromagnetic materials without the need for complex robotic fingers. The permanent nature of NdFeB magnets allows these clamps to operate without a power source. Micro Drone Researchers have developed a drone that is only 1.7 centimeters in length and can change shape and fold thanks to the use of NdFeB magnets. The high strength-to-size ratio of NdFeB magnets can be used to create highly compact and maneuverable micro-drones.

2024

10/12

From trash to treasure: Electronic waste is mined for rare earth elements
Rare earth elements are the “secret sauce” of numerous advanced materials for energy, transportation, defense and communications applications. Their largest use for clean energy is in permanent magnets, which retain magnetic properties even in the absence of an inducing field or current.         Oak Ridge National Laboratory’s Ramesh Bhave co-invented a process to recover high-purity rare earth elements from scrapped magnets of computer hard drives (shown here) and other post-consumer wastes. Credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Dept. of Energy     Now, U.S. Department of Energy researchers have invented a process to extract rare earth elements from the scrapped magnets of used hard drives and other sources. They have patented and scaled up the process in lab demonstrations and are working with ORNL’s licensee Momentum Technologies of Dallas to scale the process further to produce commercial batches of rare earth oxides. “We have developed an energy-efficient, cost-effective, environmentally friendly process to recover high-value critical materials,” said co-inventor Ramesh Bhave of DOE’s Oak Ridge National Laboratory, who leads the membrane technologies team in ORNL’s Chemical Sciences Division. “It’s an improvement over traditional processes, which require facilities with a large footprint, high capital and operating costs and a large amount of waste generated.” Permanent magnets help computer hard drives read and write data, drive motors that move hybrid and electric cars, couple wind turbines with generators to make electricity, and assist smartphones to translate electrical signals into sound. Through the patented process, magnets are dissolved in nitric acid, and the solution is continuously fed through a module supporting polymer membranes. The membranes contain porous hollow fibers with an extractant that serves as a chemical “traffic cop” of sorts; it creates a selective barrier and lets only rare earth elements pass through. The rare-earth-rich solution collected on the other side is further processed to yield rare earth oxides at purities exceeding 99.5%. Feedstock magnets for the project came from diverse sources worldwide. ORNL’s Tim McIntyre, who leads a CMI project developing robotic technology to extract magnets from hard drives, provided some. Wistron and Okon Metals, both of Texas, and Grishma Special Materials, of India, provided others. The largest magnets came from MRI machines, which use 110 pounds (50 kilograms) of neodymium-iron-boron magnets. Credit: Carlos Jones/Oak Ridge National Laboratory, U.S. Dept. of Energy That’s remarkable considering that typically, 70% of a permanent magnet is iron, which is not a rare earth element. “We are essentially able to eliminate iron completely and recover only rare earths,” Bhave said. Extracting desirable elements without co-extracting undesirable ones means less waste is created that will need downstream treatment and disposal. Supporters of the work include DOE’s Critical Materials Institute, or CMI, for separations research and DOE’s Office of Technology Transitions, or OTT, for process scale-up. ORNL is a founding team member of CMI, a DOE Energy Innovation Hub led by DOE’s Ames Laboratory and managed by the Advanced Manufacturing Office. Bhave’s “mining” of an acidic solution with selective membranes joins other promising CMI technologies for recovering rare earths, including a simple process that crushes and treats magnets and an acid-free alternative. Industry depends on critical materials, and the scientific community is developing processes to recycle them. However, no commercialized process recycles pure rare earth elements from electronic-waste magnets. That’s a huge missed opportunity considering 2.2 billion personal computers, tablets and mobile phones are expected to ship worldwide in 2019, according to Gartner. “All of these devices have rare earth magnets in them,” Bhave noted. Bhave’s project, which began in 2013, is a team effort. John Klaehn and Eric Peterson of DOE’s Idaho National Laboratory collaborated in an early phase of the research focused on chemistry, and Ananth Iyer, a professor at Purdue University, later assessed the technical and economic feasibility of scale-up. At ORNL, former postdoctoral fellows Daejin Kim and Vishwanath Deshmane studied separations process development and scale-up, respectively. Bhave’s current ORNL team, comprising Dale Adcock, Pranathi Gangavarapu, Syed Islam, Larry Powell and Priyesh Wagh, focuses on scaling up the process and working with industry partners who will commercialize the technology. To ensure rare earths could be recovered across a wide spectrum of feedstocks, researchers subjected magnets of varying composition—from sources including hard drives, magnetic resonance imaging machines, cell phones and hybrid cars—to the process. Most rare earth elements are lanthanides, elements with atomic numbers between 57 and 71 in the periodic table. “ORNL’s tremendous expertise in lanthanide chemistry gave us a huge jump start,” Bhave said. “We started looking at lanthanide chemistries and ways by which lanthanides are selectively extracted.” Over two years, the researchers tailored membrane chemistry to optimize recovery of rare earths. Now, their process recovers more than 97% of the rare earth elements. To date Bhave’s recycling project has resulted in a patent and two publications (here and here) documenting recovery of three rare earth elements—neodymium, praseodymium and dysprosium—as a mixture of oxides. The second phase of separations began in July 2018 with an effort to separate dysprosium from neodymium and praseodymium. A mixture of the three oxides sells for $50 a kilogram. If dysprosium could be separated from the mixture, its oxide could be sold for five times as much. The program’s second phase will also explore if ORNL’s underlying process for separating rare earths can be developed for separating other in-demand elements from lithium ion batteries. “The expected high growth of electric vehicles is going to require a tremendous amount of lithium and cobalt,” Bhave said. Industrial efforts needed to deploy the ORNL process into the marketplace, funded over two years by DOE’s OTT Technology Commercialization Fund, began in February 2019. The goal is to recover hundreds of kilograms of rare earth oxides each month and validate, verify and certify that manufacturers could use the recycled materials to make magnets equivalent to those made with virgin materials. DOE’s Advanced Manufacturing Office, part of the Office of Energy Efficiency and Renewable Energy, funded this research through the CMI, which was established to diversify supply, develop substitutes, improve reuse and recycling and conduct crosscutting research of critical materials. ORNL has provided strategic direction for these areas since CMI began in 2013. This includes providing leaders for focus areas and projects that led to new innovations in aluminum-cerium alloys and magnet recycling. Source: ORNL  

2019

11/16