Bar Magnets Alnico
Bar Magnets Alnico are made of aluminum, nickel, cobalt, copper, iron and other materials.Everbeen Magnet conpany manufactures cast and sintered alnico permanent magnets in a variety shapes including horseshoe, U shape, bar, block, disc, ring, rod and other customized shapes,They can be either cast or sintered and be applied widely in our daily life. Especiall for Educational Purpose.
Products Description
Bar Magnets Alnico is a permanent magnet material made of an alloy of aluminum (Al), nickel (Ni), cobalt (Co) and iron (Fe). By mixing these metal elements in a specific ratio, the Alnico alloy forms a specific crystal structure during the smelting and casting process, making it have strong magnetic properties. Bar magnets usually exist in the form of long strips or rectangles and have a uniform magnetic field distribution. The production process of this magnet includes steps such as smelting, casting, heat treatment and magnetization to ensure that its magnetic properties and mechanical properties meet the required standards.
Products Features
Highly consistent magnetic field distribution
The casting process of AlNiCo bar magnets enables precise control of the magnetic arrangement inside the magnets, making the magnetic field distribution of each magnet more uniform. Especially in bar structures, this uniformity is essential for precise magnetic application. During the manufacturing process, the solidification speed and temperature management of the alloy are strictly controlled to ensure that the magnetic strength and distribution of each magnet are highly consistent.
Optimized magnetic retention
The balanced ratio of the elements in its alloy materials, especially the addition of cobalt, enables them to maintain a stable magnetic field during long-term use. The unique crystal structure inside the alloy can effectively suppress the interference of the external environment, reduce magnetic decay, and ensure its long-term and reliable magnetic field output.
Strong structural stability
AlNiCo bar magnets have a high structural density, and its alloy materials have been optimized to show high mechanical strength. This allows the magnets to withstand certain external impacts or mechanical vibrations without breaking or deforming during long-term use.
High durability and low maintenance requirements
Due to the anti-oxidation properties of elements such as aluminum and nickel, AlNiCo alloys show good corrosion resistance during regular use, and are not easy to rust or oxidize even in relatively humid environments. This durability reduces the need for maintenance and extends the life of the product, reducing replacement costs in the long term.
Superior Dimensional Stability
During processing, the elements in the alloy are evenly distributed, and the temperature control accuracy during cooling further ensures that the shape and size of the magnet are not affected by temperature changes. This dimensional stability makes AlNiCo bar magnets more reliable in precision applications, avoiding inconsistent performance due to dimensional fluctuations.
- Grade: 5
- Type: Cast
- Standard Dimensional Tolerance: +/-0.005" on both Width (W) & Thickness (THK) and +/-0.015" on Length (L)
- Magnetization: Axially Magnetized Through the Length (L)
- Br: 12,500 Gauss
- BHmax: 5.5 MGOe
- Hc: 640 Oersteds
- Max Operating Temperature: 1004ºF/540ºC
- Curie Temp: 1580ºF/860ºC
- Density (lb/in3): 0.265Products Description
Production process
Casting:Ingredients -->Melting -->Casting -->Heat Treatment -->Performance Testing -->Mechanical Processing -->Inspection -->Packaging
Sintering: Ingredients -->Powder making -->Pressing -->Sintering -->Heat treatment -->Performance testing -->Mechanical processing -->Inspection -->Packaging
FAQ
Why are Alnico bar magnets preferred in certain applications?
Alnico bar magnets are preferred for their excellent thermal stability, high temperature resistance (up to 540°C or 1000°F), and resistance to corrosion. These properties make them ideal for applications in electric motors, sensors, and musical instruments like guitar pickups, where performance in varying environmental conditions is crucial.
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