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Details about bonding with moulded ndfeb is introduced

by:Newland     2020-05-01
Adhesive moulded ndfeb magnet has a very high dimensional accuracy and magnetic uniformity, complex shape can be made into machining is difficult to implement, and easy integration with other parts forming, mass production of good consistency. Adhesive moulded ndfeb magnet magnetization way with diversity, low eddy current loss and strong corrosion resistance, etc. Adhesive moulded ndfeb magnet magnetic energy is as follows: Br: 3000 ~ 8000 gs, Hci: 4000 - - - - - - - - - - - - - 16000 Oe, BHmax: 2. 5 - 11. 5 mgoe。 Usually use electrophoresis of epoxy resin surface treatment, color is dark grey. Salt spray test 72 hours or more, and a 150 - 180 ℃ maximum operating temperature in order to achieve the good mechanical properties and consistent and magnetic energy, the maximum forming a 50 mm height size, a 0. 35 mm wall thickness, outer diameter size tolerance can be plus or minus 0. 5 mm or less. Product performance: bonding moulded ndfeb is isotropic, during pressing process don't need the magnet magnetic field orientation; In isotropic magnet, the magnetic to the highest. Product application: adhesive moulded ndfeb magnet is mainly used in all kinds of miniature motor, such as spindle motor, stepping motor, synchronous motor, dc motor, brushless dc motor. Can partly replace sintered ndfeb magnets and ferrite magnets, make motor assembly process more simple, reliable, lower cost, higher efficiency. May carry on the cathodic electrophoretic coating of magnet, Parylene coating and spraying epoxy resin coating. Coating effect smooth, dense, good antirust effect and anti-separtion according to customer's needs for radial multi-polar magnet, plane multipolar and spoke to the magnetization, and note a plastic insert and the metal insert. Product features: bonding moulded ndfeb magnets by ndfeb alloy powders mixed with epoxy resin after suppression and become, also can be mixed with plastic by injection or extrusion. First: magnetic high: magnetic between sintered ndfeb magnet with ferrite magnet, consistency, the stability is better. Second: high dimensional precision, shape of degrees of freedom: the product shape and size is determined by the mould. But make it free shapes such as annular, tile shape, block, don't need after sintering and mechanical processing. The third: good corrosion resistance: after electrophoresis coating or some special treatment, can be used in daily long-term or severe environment. Fourth: diversification of magnetization, magnetic poles can be filled into a multipolar, oblique, waveform can be square wave, sine wave. Fifth: suitable for large quantity, high production efficiency.
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