Amorphous soft magnetic composite magnetic powder core and preparation method thereof
A soft magnetic composite and amorphous technology, applied in the direction of magnetic materials, magnetic objects, metal processing equipment, etc., can solve the problems of poor magnetic properties and thermal stability of magnetic powder cores, and achieve the effect of excellent magnetic properties and good calenderability
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[0063] Example 1
[0064] This embodiment provides an amorphous soft magnetic composite magnetic powder core and a preparation method thereof, and the corresponding preparation method includes the following steps:
[0065] S1. Preparation of amorphous alloy powder:
[0066] S11. The thickness is 18 μm, the width is 10 mm, and the composition is Fe 80 Si 9 B 11 The iron-based amorphous alloy thin strips are broken into pieces of 50 mesh to 200 mesh by mechanical crusher;
[0067] S12. Place the 50-mesh to 200-mesh fragments in a nitrogen-protected atmosphere rotary furnace, and heat treatment at 300° C. for 1 h. During the heat treatment period, the rotation speed of the atmosphere rotary furnace is controlled to be 5r / min, the atmosphere pressure is 0.1MPa, and the Stop turning the atmosphere rotary furnace to make the amorphous fragments evenly heated;
[0068] S13, put the heat-treated fragments into the air-flow mill, control the output power of the air-flow mill to 35...
Example Embodiment
[0074] Example 2
[0075] This embodiment provides an amorphous soft magnetic composite magnetic powder core and a preparation method thereof, and the corresponding preparation method includes the following steps:
[0076] S1. Preparation of amorphous alloy powder:
[0077] S11, the thickness is 20μm, the width is 20mm, and the composition is Fe 78 Si 9 B 13 The iron-based amorphous alloy thin strips are broken into pieces of 50 mesh to 200 mesh by mechanical crusher;
[0078] S12. Place the 50-mesh to 200-mesh fragments in an argon-protected atmosphere rotary furnace, and heat treatment at 300° C. for 1 hour. During the heat treatment period, the rotation speed of the atmosphere rotary furnace is controlled to be 10 r / min, the atmosphere pressure is 0.2 MPa, and the Stop turning the atmosphere rotary furnace to make the amorphous fragments evenly heated;
[0079] S13, put the heat-treated fragments into the air-flow mill, control the output power of the air-flow mill to ...
Example Embodiment
[0085] Example 3
[0086] This embodiment provides an amorphous soft magnetic composite magnetic powder core and a preparation method thereof, and the corresponding preparation method includes the following steps:
[0087] S1. Preparation of amorphous alloy powder:
[0088] S11. The thickness is 25 μm, the width is 30 mm, and the composition is Fe 80 Si 9 B 11 The iron-based amorphous alloy thin strips are broken into pieces of 50 mesh to 200 mesh by mechanical crusher;
[0089] S12. Place the 50-mesh to 200-mesh fragments in a nitrogen-protected atmosphere rotary furnace, heat treatment at 280° C. for 1 h, during the heat treatment period, control the rotation speed of the atmosphere rotary furnace to be 20 r / min, and the atmosphere pressure to be 0.3 MPa, without stopping. Invert the atmosphere rotary furnace, so that the amorphous fragments are evenly heated;
[0090] S13, put the heat-treated fragments into the air flow mill, control the output power of the air flow m...
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