A kind of high q magnetic glue material and preparation method thereof
A magnetic and powder technology, applied in the field of high-Q magnetic adhesive material and its preparation, to achieve the effect of improving frequency characteristics, Q value and high insulation
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Embodiment 1
[0026] The soft magnetic alloy FeSiCr powder with a particle size of 2 μm to 15 μm is selected, in which the powder with a particle size of 2 μm accounts for 15wt% of the total powder, the powder with a particle size of 5um accounts for 25wt% of the total powder, and the powder with a particle size of 10um accounts for 15wt% of the total powder. 60wt% of powder weight ratio; its components include 89.0wt% Fe, 3.5wt% Si, 2.5wt% Cr, 0.3wt% C, 1.5wt% Al, 3.1wt% P, 0.1wt% Mn, among which The P and C elements control the growth of its internal grains, wherein Cr and Al in the composition form a eutectic phase and provide the material with anti-oxidation ability, wherein C, Mn elements limit the degree of reaction of Cr and Al with Fe elements to prevent it from producing excess. FeCr or FeAl phase, in which the internal grain size of its particles is 0.3um, in which the material is in a reducing atmosphere by high temperature to eliminate the stress generated during the alloying pro...
Embodiment 2
[0028]The soft magnetic alloy FeSiCr powder with a particle size of 2 μm to 15 μm is selected, in which the powder with a particle size of 3um accounts for 20wt% of the total powder, the powder with a particle size of 8um accounts for 35wt% of the total powder, and the powder with a particle size of 13um accounts for 35wt% of the total powder. 45wt% of the powder weight ratio; its components include 95.0wt% Fe, 2.0wt% Si, 1.0wt% Cr, 0.05wt% C, 0.5wt% Al, 1.4wt% P, 0.05wt% Mn, and its internal crystals are The particle size is 0.5um, and the material is heat treated in a mixed atmosphere of nitrogen and carbon monoxide to obtain pretreated soft magnetic alloy powder. Among them; add 3wt% silane coupling agent propyltrimethoxysilane, 0.01wt% polysiloxane polydimethylsiloxane, 0.05wt% metal deactivation antioxidant alkyl vinyl ester to the powder, stir well Homogeneous, powder: the solution of absolute ethanol=1:1 was stirred at 70°C for 6H and then dried; 7wt% resin was added to...
Embodiment 3
[0030] The soft magnetic alloy FeSiCr powder with a particle size of 2 μm to 15 μm is selected, in which the powder with a particle size of 5 μm accounts for 25 wt% of the total powder weight, the powder with a particle size of 10 μm accounts for 35 wt % of the total powder weight, and the powder with a particle size of 15 μm accounts for 35 wt % of the total powder. 40wt% of the powder weight ratio; its components include 92.0wt% Fe, 2.5wt% Si, 1.8wt% Cr, 0.2wt% C, 1.12wt% Al, 2.3wt% P, 0.08wt% Mn, and its internal crystalline The particle size is 0.35um, and the material is heat treated in a mixed atmosphere of nitrogen and carbon monoxide to obtain pretreated soft magnetic alloy powder. Among them; add 0.8wt% silane coupling agent propyl trimethoxysilane, 0.04wt% polysiloxane polydimethylsiloxane, 0.04wt% metal deactivation antioxidant alkyl vinyl ester to the powder Stir well, powder: anhydrous ethanol=1:1 solution at 80°C for 4 hours and then dry; add 10wt% resin to the d...
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