阅读说明：本技术 非晶粉末及其制备方法 (Amorphous powder and method for producing same ) 是由 王策 孙海波 陈卫红 于 2019-11-25 设计创作，主要内容包括：本发明提供的一种非晶粉末,其成分包括有Fe<Sub>(100-x-y-z-a-b)</Sub>Si<Sub>x</Sub>B<Sub>y</Sub>C<Sub>z</Sub>M<Sub>a</Sub>N<Sub>b</Sub>,式中M为Ni、Mo元素中的任意一种,N为Cr、Mn元素中的任意一种；其中6﹤x﹤11,9﹤y﹤16,1﹤z﹤8,0≤a﹤5,0﹤b﹤5；本发明的非晶粉末通过合金成分的设计优化,具有综合磁性能优异的有益技术效果,满足高性能要求的非晶元件应用需求。(kinds of amorphous powder, whose composition includes Fe (100‑x‑y‑z‑a‑b) Si x B y C z M a N b The amorphous powder has the beneficial technical effects that the amorphous powder has excellent comprehensive magnetic performance by the design optimization of alloy components, and meets the application requirement of the amorphous element with high performance requirement.)

1. Amorphous powder, characterized in that its composition comprises Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any kinds of Ni and Mo elements, N is any kinds of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5.

2. The amorphous powder of claim 1, having a composition comprising Fe₇₆Si_7.5B₇C₄Ni_1.5Cr₃。

3. The amorphous powder of claim 1, having a composition comprising Fe₇₅Si₈B₇C₄Mo₁Cr₅。

4. The amorphous powder of claim 1, having a composition comprising Fe₇₈Si₆B₈C₃Ni₃Mn₂。

5. The amorphous powder of claim 1, having a composition comprising Fe₇₆Si₉B₇C₅Cr₃。

6. The amorphous powder of claim 1, having a composition comprising Fe₇₈Si₆B₉C₄Cr₃。

7. A method of preparing amorphous powder as claimed in any of claims 1 to 6 to , comprising the steps of:

s1-1, carrying out smelting preparation on the master alloy, wherein the component expression of the master alloy obtained by smelting preparation is Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any of Ni and Mo elements, and N is any of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5;

s1-2, preparing the master alloy by a single-roller rapid quenching method or a double-roller rapid quenching method to obtain an amorphous strip.

S1-3, crushing the amorphous strip to obtain flaky amorphous powder.

8. A method of preparing amorphous powder as claimed in any of claims 1 to 6 to , comprising the steps of:

s2-1, carrying out smelting preparation on the master alloy, wherein the component expression of the master alloy obtained by smelting preparation is Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any of Ni and Mo elements, and N is any of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5;

s2-2, preparing the master alloy by a water atomization method, an air atomization method or a water-air atomization combination method to obtain the spheroidal amorphous powder.

Technical Field

The invention relates to the technical field of soft magnetic alloy metallurgy, in particular to amorphous powders and a preparation method thereof.

Background

The amorphous material has high saturation magnetic induction, high magnetic conductivity, low coercive force, low high-frequency loss, good strong hardness, wear resistance, corrosion resistance, good temperature and environmental stability and the like, has excellent comprehensive performance, replaces permalloy, silicon steel and ferrite, is applied to power electronic technology, shows the characteristics of small volume, high efficiency, energy conservation and the like, and has the optimal cost performance ratio in all metal soft magnetic materials.

Disclosure of Invention

The invention aims to provide amorphous powders and a preparation method thereof to overcome the defects of the prior art.

Amorphous powder of Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any kinds of Ni and Mo elements, N is any kinds of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5.

, its composition contains Fe₇₆Si_7.5B₇C₄Ni_1.5Cr₃。

, its composition contains Fe₇₅Si₈B₇C₄Mo₁Cr₅。

, its composition contains Fe₇₈Si₆B₈C₃Ni₃Mn₂。

, its composition contains Fe₇₆Si₉B₇C₅Cr₃。

, its composition contains Fe₇₈Si₆B₉C₄Cr₃。

A method for preparing the amorphous powder comprises the following steps:

s1-1, carrying out smelting preparation on the master alloy, wherein the component expression of the master alloy obtained by smelting preparation is Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bWherein M is kinds of Ni and Mo elements, N is kinds of Cr and Mn elements, 6﹤x﹤11，9﹤y﹤16，1﹤z﹤8，0≤a﹤5，0﹤b﹤5；

S1-2, preparing the master alloy by a single-roller rapid quenching method or a double-roller rapid quenching method to obtain an amorphous strip.

S1-3, crushing the amorphous strip to obtain flaky amorphous powder.

Another kinds of the above-mentioned preparation methods of amorphous powder, including the following steps:

s2-1, carrying out smelting preparation on the master alloy, wherein the component expression of the master alloy obtained by smelting preparation is Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any of Ni and Mo elements, and N is any of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5;

s2-2, preparing the master alloy by a water atomization method, an air atomization method or a water-air atomization combination method to obtain the spheroidal amorphous powder.

The invention has the beneficial effects that:

the amorphous powder has the beneficial technical effect of excellent comprehensive magnetic performance by the design optimization of alloy components, and meets the application requirement of an amorphous element with high performance requirement.

Detailed Description

In order to make the technical solution, objects and advantages of the present invention more apparent, the following examples illustrate the present invention by proceeding to step .

The invention relates to a preparation method of an amorphous magnetic powder core, which specifically comprises the following steps:

s1, smelting the alloy raw materials in a smelting furnace to prepare a master alloy;

s2, preparing corresponding amorphous powder from the master alloy;

s3, mixing the amorphous powder according to a ratio to obtain amorphous mixed powder;

s4, carrying out insulation coating treatment on the amorphous mixed powder to obtain amorphous coated powder;

s5, adding a lubricant into the amorphous coated powder, and stirring and mixing to obtain amorphous finished powder;

s6, performing pressing treatment, sintering treatment, annealing treatment and curing treatment on the amorphous finished product powder to obtain a magnetic powder core base block;

and S7, performing surface coating treatment on the magnetic powder core base block to obtain the amorphous magnetic powder core.

In step S1, the iron-based amorphous alloy mother alloy provided by the invention has the composition expression of Fe_{(100-x-y-z-a-b)}Si_xB_yC_zM_aN_bIn the formula, M is any kinds of Ni and Mo elements, N is any kinds of Cr and Mn elements, wherein 6 < x < 11, 9 < y < 16, 1 < z < 8, 0 < a < 5, and 0 < b < 5.

The mother alloy for the iron-based amorphous alloy may be based on Fe₇₈Si₉B₁₃The preparation is carried out by adding elements to change the internal atomic arrangement of the amorphous alloy.

Specifically, the Fe is added to the mixture according to the preparation requirement₇₈Si₉B₁₃On the basis of the components of the alloy, the alloy is designed by adding and replacing elements such as C, Ni, Mo, Cr, Mn and the like; calculating the weight ratio of each required element according to the designed component atomic ratio, and further calculating the weight of each raw material required by each element added; and calculating the weight of each required raw material and smelting to prepare the master alloy for the iron-based amorphous alloy.