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A high -performance soft magnetic non -crystal coating and preparation method
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An amorphous coating, high-performance technology, applied in coating, metal material coating process, manufacturing tools, etc., can solve the problems of limited saturation magnetization, limited application, low resistivity, etc.
Active Publication Date: 2022-08-09
中国电子科技集团公司第九研究所
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Among them, metal crystal soft magnetic materials have good comprehensive magnetic properties, but due to their low resistivity, they have high losses during use and are limited in high-frequency applications. Ferrite materials have relatively high resistivity, but with Compared with metal crystal soft magnetic materials, its saturation magnetization is limited
Amorphous soft magnetic materials have the advantages of metal crystal soft magnetic materials and ferrite soft magnetic materials, but the comprehensive magnetic properties of amorphous soft magnetic materials still need to be improved.
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Embodiment 1
[0025] A kind of high-performance soft magnetic amorphous coating and preparation method thereof are carried out according to the following steps:
[0026] Step (1): Using pure elements as raw materials, according to the weight percentages of the components, Fe 44.5%-45%, Co 5.6%-5.65%, Ni 5.55%-5.6%, Ho 18.7%-18.9%, Si 4.4%-4.5%, B 17.7%~18.0%, C1.6%~1.7%, Cr 1%~1.5% and a small amount of impurities, ingredients.
[0027] Step (2): Use a vacuum belt throwing machine to make the raw material in step (1) into a thin belt with a thickness of 15 μm.
[0028] Step (3): The powder in step (2) is annealed in a vacuum environment of 800° C., and kept for 2 hours.
[0029] Step (4): Use a ball mill to grind the thin strip annealed in step (3).
[0030] Step (5): Use spray drying equipment to granulate the powder in (4).
[0031] Step (6): use alumina with a particle size ranging from 60 to 200 meshes to blast the surface of the aluminum alloy substrate, and the blasting pressure is...
Embodiment 2
[0035] A kind of high-performance soft magnetic amorphous coating and preparation method thereof are carried out according to the following steps:
[0036] Step (1): Using pure elements as raw materials, according to the weight percentages of the components, Fe 44.7%-45%, Co 5.6%-5.7%, Ni 5.5%-5.6%, Ho 18.5%-18.9%, Si 4.2%-4.5%, B 17.5%~18.0%, C1.6%~1.8%, Cr 1%~1.2% and a small amount of impurities, ingredients.
[0037] Step (2): Use a belt spinningmachine to make the raw material in step (1) into a thin belt with a thickness of 5 μm.
[0038] Step (3): The powder in step (2) is annealed in a vacuum environment of 700°C, and kept for 1.5h.
[0039] Step (4): Use a ball mill to grind the thin strip annealed in step (3).
[0040] Step (5): Use spray drying equipment to granulate the powder in (4).
[0041] Step (6): use alumina with a particle size ranging from 60 to 200 meshes to blast the surface of the aluminum alloy substrate, and the blasting pressure is 0.1 MPa to 0.8...
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Abstract
The present invention disclosed a high -performance soft magnetic non -crystalcoating and its preparation method, which is the field of coating preparation technology.Eight elements such as CR, the preparation steps include: ingredients, according to the component weight percentage percentage of the components of the coating; shake the belt, use the vacuum dumping machine to make the above raw materials into thin bands; heat treatment, the thin belt is in the vacuum furnace in the vacuum furnaceMerdered annealing; after the mechanical crushed, the thin band was grinded into powder and granularity treatment; the substrate materials were removed in orderOn the surface of the matrix, the coating is required. The coating has an amorphous structure. The amorphous structure is well retained with the disorderly state of the material at high temperature. Therefore, the coating has high saturated magnetization strength and resistivity.
Description
technical field [0001] The invention relates to the technical field of coating preparation, in particular to a high-performance soft magnetic amorphous coating and a preparation method thereof. Background technique [0002] Soft magnetic material is an important magnetic functional material. Such materials have the characteristics of high saturation magnetization, low saturation field, and low coercivity. At present, commonly used soft magnetic materials include metalcrystal soft magnetic materials, ferrite soft magnetic materials, and amorphous soft magnetic materials. Among them, metalcrystal soft magnetic materials have good comprehensive magnetic properties, but due to their low resistivity, they have high losses during use and are limited in high-frequency applications. Ferrite materials have high resistivity, but and Compared with metal crystalline soft magnetic materials, its saturation magnetization is limited. Amorphous soft magnetic materials have the advantage...
Claims
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