Iron-silicon-aluminum metal powder for 3D printing and preparation method thereof

A metal powder, 3D printing technology, applied in metal processing equipment, transportation and packaging, additive processing, etc., can solve the problem of low resource utilization rate of 3% non-oriented silicon steel waste, achieve good application prospects and good practicability , the effect of good application value

Inactive Publication Date: 2020-08-04
深圳市晶莱新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One of the purposes of the present invention is to provide a method for preparing sendust metal powder for 3D printing. The silicon raw material in the raw material is prepared by using 3% non-oriented silicon steel waste to overcome the current low resource utilization rate of 3% non-oriented silicon steel waste. high disadvantage

Method used

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  • Iron-silicon-aluminum metal powder for 3D printing and preparation method thereof
  • Iron-silicon-aluminum metal powder for 3D printing and preparation method thereof
  • Iron-silicon-aluminum metal powder for 3D printing and preparation method thereof

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Embodiment 1

[0030] This embodiment provides a kind of sendust metal powder for 3D printing, which is prepared by the following method:

[0031] (1) Placement of materials in the furnace: 3kg of pure aluminum particles and 3.75kg of granular industrial silicon are mixed and placed on the bottom of the vacuum atomization furnace body, and then 18.25kg of industrial pure iron is placed in the inner and outer rings of the vacuum atomization furnace, and placed Above the aluminum granules and granular industrial silicon, finally place 25kg of 3% non-oriented silicon steel waste in the inner ring surrounded by industrial pure iron;

[0032] (2) Vacuuming treatment: open the vacuum induction melting control device of the vacuum atomization equipment, and pump the vacuum degree in the furnace body of the vacuum atomization furnace to 20Pa;

[0033] (3) Heating and smelting treatment: start to heat up after vacuuming, and the heating process is as follows: 0-30min, the temperature rises to 700°C; ...

Embodiment 2

[0036] This embodiment provides a sendust metal powder, which is prepared by the following method:

[0037] (1) Placement of materials in the furnace: 3.15kg of pure aluminum particles and 3.6kg of granular industrial silicon are mixed and placed at the bottom of the vacuum atomization furnace body, and then 18kg of industrial pure iron is placed in the inner and outer rings of the vacuum atomization furnace, and placed Above the aluminum granules and granular industrial silicon, finally place 25kg of 3% non-oriented silicon steel waste in the inner ring surrounded by industrial pure iron;

[0038] (2) Vacuuming treatment: open the vacuum induction melting control device of the vacuum atomization equipment, and pump the vacuum degree in the furnace body of the vacuum atomization furnace to 20Pa;

[0039](3) Heating and smelting treatment: start to heat up after vacuuming, and the heating process is as follows: 0-30min, the temperature rises to 700°C; 30-40min, 700°C constant t...

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Abstract

The invention discloses iron-silicon-aluminum metal powder for 3D printing and a preparation method thereof, and relates to the technical field of metal powder development. The iron-silicon-aluminum metal powder comprises following components of, in mass percent, 8.5%-9% of silicon, 6%-6.5% of aluminum, less than 0.01% of carbon, less than 0.02% of phosphorus, less than 0.002% of sulfur, and the balance of Fe. The main preparation method comprises the following steps that, (1) solid NaOH molten liquid is used outside a furnace, and an insulating coating on the surface of the non-oriented silicon steel scrap is removed by soaking under the condition of 400 DEG C; (2) according to the mass percent, 30 -70% of 3% non-oriented silicon steel scrap, 6.9-8.1% of industrial silicon, 17.1%-55.9% ofingot iron and 6% of pure aluminum particles are added into a vacuum atomization furnace in a raw material ratio mode; and (3), after raw materials are melted, the powder is prepared by using a gas atomization method, the atomizing gas is nitrogen and argon mixed gas, and the atomization pressure is 4-5.5 MPa. According to the preparation method, the 3% non-oriented silicon steel scrap can be fully utilized, and the problem of insufficient current utilization rate is solved; and the produced iron-silicon-aluminum metal powder is suitable for 3D printing, and has good economic benefits and application prospects.

Description

technical field [0001] The invention relates to the technical field of metal powder development, and relates to a 3D printing sendust metal powder and a preparation method thereof. Background technique [0002] Sendust magnetic powder core is an improved sendust material, it is designed to replace iron powder core, the core loss is lower, and the energy storage capacity is higher than that of iron nickel molybdenum (MPP) magnetic powder core , is an ideal choice for energy storage and filter inductor cores in switching power supplies. Low core loss performance can make SENDUST iron silicon core have lower temperature rise at high frequency than pure iron powder core of similar size, and its DC bias magnetic field performance is also better than pure iron powder with similar magnetic permeability and size The core is better, and the current resistance performance is good. The sendust magnetic powder core is composed of sendust powder, the main components are 8.5%-9% silicon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/06C22C38/06C22C38/02C22C33/02B22F1/00B33Y70/00
CPCB22F9/082C22C38/06C22C38/02C22C33/0207B33Y70/00B22F2009/0824B22F2009/0848B22F2009/088B22F1/05
Inventor 陈俊孚吴苏州李晓云
Owner 深圳市晶莱新材料科技有限公司
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