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Co-Fe-Ni-P powder production method

A technology of co-fe-ni-p and production method, applied in the field of amorphous alloy powder, can solve the problems of difficult powder processing, poor selectivity, affecting device performance, etc., and achieves improved preparation speed, strong operability, Widely applicable effects

Inactive Publication Date: 2018-06-15
刘志红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of water atomization, the obtained powder is easy to form oxides and has a high oxygen content. Furthermore, when the molten metal solidifies, the generated water vapor will cover the surface of the molten metal. The existence of this water vapor film will lead to The cooling strength of the molten core metal is reduced, so that the central part of the powder cannot obtain an amorphous structure, which affects device performance
Due to the limited cooling intensity, the aerosol method can only prepare amorphous alloy powder with strong amorphous forming ability, and the production cost is high
The advantage of the direct crushing method is that the selectivity to the material is not strong, and the material utilization rate is high, but the embrittlement annealing of the amorphous thin strip is required, and it is easy to cause uneven crystallization transformation inside the thin strip due to uneven annealing, and in the After crushing, it is easy to produce powder particles with sharp angles, which brings difficulties to the subsequent processing of powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation of embodiment 1 Co63Fe16Ni14P7 amorphous alloy powder

[0030] The preparation process comprises the following steps:

[0031] (1) Pretreatment of the surface of the metal substrate: the metal substrate is made of 08F steel plate, and the surface of the plated substrate is cleaned by sodium hydroxide solution and hydrochloric acid solution to remove grease and oxidation;

[0032] (2) Electroplating solution composition: cobalt chloride 1.5 mol / L, phosphoric acid 0.6 mol / L, nickel chloride 0.3 mol / L, ferrous chloride 0.4 mol / L, phosphorous acid 0.25 mol / L, additive 1.5 g / L , 15 g / L of soluble chloride salt, 1.5 g / L of reducing agent, and the balance of water;

[0033] Above-mentioned additive is the mixture that the ratio of saccharin and sodium lauryl sulfate mass is 1:1;

[0034] Above-mentioned soluble chloride salt is potassium chloride;

[0035] Above-mentioned reducing agent is ascorbic acid;

[0036] (3) Preparation of amorphous alloy coating: ...

Embodiment 2

[0040] The preparation of embodiment 2 Co62 Fe18 Ni11P9 amorphous alloy powder

[0041] The preparation process comprises the following steps:

[0042] (1) Pretreatment of the surface of the metal substrate: the metal substrate is made of a brass plate with a thickness of 1mm, and the surface of the plated substrate is cleaned by sodium hydroxide solution and hydrochloric acid solution to remove grease and oxidation;

[0043] (2) Electroplating solution composition: cobalt sulfate 1.8 mol / L, phosphoric acid 0.7 mol / L, nickel sulfate 0.3 mol / L, ferrous sulfate 0.5 mol / L, phosphorous acid 0.3 mol / L, additive 3g / L, soluble sulfate 20 g / L, reducing agent 3 g / L, balance water;

[0044] Above-mentioned additive is the mixture that the mass ratio of saccharin and sodium lauryl sulfate is 1:2;

[0045] Above-mentioned soluble chloride salt is sodium sulfate;

[0046] Above-mentioned reducing agent is potassium iodide;

[0047] (3) Preparation of amorphous alloy coating: the pretre...

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Abstract

The invention discloses a Co-Fe-Ni-P powder production method, the technical principle includes the steps of electroplating, stripping and crushing, and amorphous alloy powder can be obtained. The Co-Fe-Ni-P powder production method is characterized by including the steps that (1) metal substrates are selected, and the surfaces to be electroplated are processed; (2) a Co-Ni-Fe-P amorphous alloy coating is prepared in an electroplating method, positive poles are made of graphite plates or stainless steel plates, the electric current density of electrodes is 0.05-0.5A / mm2, a Ph value of a plating solution is less than 3 by titrating a hydrochloric acid solution, and the plating temperature is 40-85 DEG C; (3) the amorphous alloy coating is peeled from the surface of the metal substrate through rolling, bending, shot blasting and other methods; (4) the peeled amorphous alloy coating is crushed through a ball mill, particle crusher and other modes; and during crushing, the ball mill and the particle crusher adopt a forced cooling mode or a intermission work mode; and (5) Co-Fe-Ni-P amorphous alloy powder with various sizes is filtered and divided.

Description

technical field [0001] The invention relates to an amorphous alloy powder, in particular to a production method of Co-Fe-Ni-P powder. Background technique [0002] With the development of electronic power and communication industry, electronic components are developing in the direction of miniaturization, high frequency and high current. [0003] development, and the requirements for the electromagnetic compatibility performance of electronic equipment are getting higher and higher. The traditional amorphous strip iron core, soft ferrite [0004] And metal magnetic powder cores can no longer meet the demand. The performance defects of ordinary magnetic materials are mainly manifested in: (1) The eddy current induced by the amorphous strip iron core causes a large loss during high frequency operation, which limits its application in the high frequency field; (2) The soft magnetic ferrite has low high frequency loss , but the saturation magnetic induction and magnetic permea...

Claims

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Application Information

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IPC IPC(8): C22C45/04C25D3/56B22F9/04
CPCC22C45/04B22F9/002B22F9/04C25D3/562
Inventor 刘志红
Owner 刘志红