Magnets
Magnets are fundamental elements in many technological systems and an important part of our daily lives. From powerful neodymium magnets to more traditional ferrite magnets, there are a wide variety of magnet types tailored to specific needs. Freber has chosen to focus on permanent magnets and collaborates with suppliers in Taiwan and China who offer a broad range of qualities, shapes, and sizes.
Different Types of Permanent Magnets
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Neodymium (NdFeB): Extremely strong but vulnerable to corrosion and high temperatures. Used in speakers, electric vehicles, and wind turbines.
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Samarium-Cobalt (SmCo): Can withstand high temperatures and has high resistance to demagnetization. Suitable for aerospace and medical equipment.
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Alnico: Composed of aluminum, nickel, and cobalt. Offers good temperature stability but lower magnetic strength. Used in sensors and measuring instruments.
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Ferrite (Ceramic Magnets): Affordable and corrosion-resistant, but weaker than rare-earth magnets. Common in motors and household appliances.
Applications of Magnets
Magnets have a wide range of uses in both everyday life and industry. Here's a brief overview of typical applications:
Everyday uses
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Household Appliances: Found in refrigerator doors, microwaves, speakers, and fans, where they contribute to functionality and efficiency.
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Electronics: Used in hard drives, mobile phones, and headphones for data storage and sound production.
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Toys and Jewelry/Accessories: Magnets are used in construction toys and as closure mechanisms in jewelry and accessories.
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Compasses: Utilize the magnet's ability to point toward the Earth's magnetic north pole for navigation.
Industrial Applications
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Lifting and Handling: Strong magnets are used to lift heavy metal objects in workshops and construction sites.
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Mounting Devices: Smaller magnets are used for signs or to hold components in place during welding/soldering. Rubber-coated magnets are ideal for mounting enclosures without scratching or drilling.
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Recycling and Waste Management: Magnetic separation extracts metallic materials from waste for recycling.
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Motors and Generators: Essential components in electric motors and generators for energy production and transmission.
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Security Solutions: Electromagnetic locks and door magnets secure doors in buildings and vehicles.
Medical and Technological Uses
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Medical Imaging: Magnetic Resonance Imaging (MRI) uses strong magnets to create detailed images of the body’s interior.
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Renewable Energy: Neodymium magnets are crucial in wind turbines and electric vehicles due to their high strength and efficiency.
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Research and Development: Used in advanced technologies such as magnetic levitation (MagLev) and particle accelerators.
Magnets are therefore integrated into many aspects of modern life, from simple household items to advanced industrial and medical technologies.
Contact us for more information about magnets and an overview of what we can offer.
For more information
John Roar Vanebo | john@freber.no | +47 924 68 223
Trond Eriksen | trond@freber.no | +47 995 17 498
Ingar Ottosen | ingar@freber.no | +47 974 09 717