Advantages and Disadvantages of Aluminum Nickel Cobalt Magnets and Their Fields of Application
Aluminum nickel cobalt magnets can withstand temperatures of up to 500 to 550°C without losing their magnetic properties. Therefore, they have a higher temperature resistance than samarium cobalt or hard ferrite magnets, whose load capacity is between 250 and 350°C. In contrast, neodymium magnets can only be used up to 200°C. In addition, aluminum nickel cobalt magnets are not sensitive to corrosion and are resistant to most acids, solvents and oils. The high nickel content of the alloy is responsible for this. Ferrites and samarium cobalt magnets are also corrosion-resistant, while neodymium magnets are extremely susceptible to corrosion. However, since Alnico magnets are very hard and brittle, they cannot be cut (i.e., separate the layers of material using a cutting edge), but can be ground. Due to their properties, aluminum nickel cobalt magnets can be used wherever material resistance, especially temperature resistance, is required. For example, they are ideal for sensors, magnetic switches, motors, measuring devices, etc. In addition, the magnets are also suitable for home and school use. At school, children can enter the exciting field of magnetism in a fun way. Some magnets are even sold and used only in schools. Due to the low coercivity of Alnico magnets, they are very sensitive to demagnetization fields, while SmCo magnets have a high coercivity. Therefore, SmCo magnets can better resist demagnetization from magnetic fields. Therefore, aluminum nickel cobalt magnets should not be stored with the same polarity. While the magnets have a relatively low coercivity, they also have a high remanence. Therefore, you can assume that a strong magnetic field is present, but it can quickly weaken again through the demagnetization effect.
Product Introduction
Raw materials for Aluminum Nickel Cobalt Magnets are aluminium, nickel, cobalt, iron, copper and titanium. Aluminum Nickel Cobalt Magnets are produced in a sintering – casting procedure. The hard material needs to be processed by grinding to be cost effective. Due to its specifications, the best dimension is a remarkably longer length than its diameter. In combination with reed sensors / switches we recommend a length / diameter ratio of more than 4. AlNiCo magnets have excellent temperature stability. Cylindrical AlNiCo magnets can be used with all Standex Electronics reed sensors / switches without any problems. are aluminium, nickel, cobalt, iron, copper and titanium. Aluminum Nickel Cobalt Magnets are produced in a sintering – casting procedure. The hard material needs to be processed by grinding to be cost effective. Due to its specifications, the best dimension is a remarkably longer length than its diameter. In combination with reed sensors / switches we recommend a length / diameter ratio of more than 4. AlNiCo magnets have excellent temperature stability. Cylindrical AlNiCo magnets can be used with all Standex Electronics reed sensors / switches without any problems.
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