Product Name - MQA
The MQA product line is Magnequench's first line of anisotropic powders used in the manufacture of bonded magnets. These powders have considerably higher residual inductance (Br) and energy product (BH)max relative to the MQP isotropic powders. MQA powders have been developed to serve markets that require higher magnetic properties, especially in automotive passenger compartment motors and home appliances. MQA powders are produced by magnetically aligning the powder particles in a magnet making process followed by crushing and coating steps to yield the final anisotropic powder. Companies utilizing MQA powders must align the magnet particles in their magnet making processes.
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MQA-36-18 has the highest intrinsic coercivity of all of the MQA powder grades. This attribute can be leveraged by employing MQA-36-18 in applications where strong resistance to demagnetization is most beneficial.
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1250
(12.50) |
282
(35.5) |
1393
(17.5) |
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Of the current MQA anisotropic powder portfolio, MQA-37-11 has the lowest coercivity, which is well suited for applications subjected to working environments not exceeding 80 degrees centigrade. This material also lends itself quite well to certain calendaring manufacturing processes, given the relative low coercivity and high remanence values.
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1300
(13.0) |
290
(36.5) |
836
(10.5) |
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MQA-37-16 combines relatively high magnetic flux with a higher intrinsic coercivity level. Depending on the end application's specification and design, MQA-37-16 may also be used in indoor automotive accessory motors, such as seat and window lift motors.
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1270
(12.7) |
290
(36.5) |
1234
(15.5) |
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MQA 38-14 has been tailored for use in indoor automotive accessory motors but can be used in a wide range of applications, including home appliance motors. The majority of these motors require material that can operate in temperatures reaching 120 degrees centrigrade. MQA-38-14 maintains its magnetic properties at this temperature in part due to its chemical composition.
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1300
(13.00) |
298
(37.5) |
1075
(13.5) |