Manufacturing process for iron-silicon-aluminum alloy powder

A technology of iron-silicon aluminum alloy and manufacturing process, which is applied in the direction of metal processing equipment, transportation and packaging, etc., to achieve the effect of reducing production costs

Inactive Publication Date: 2016-09-28
古前春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to solve the deficiencies in the existing sendust powder manufactu

Method used

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  • Manufacturing process for iron-silicon-aluminum alloy powder
  • Manufacturing process for iron-silicon-aluminum alloy powder
  • Manufacturing process for iron-silicon-aluminum alloy powder

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Embodiment Construction

[0019] The realization steps of the manufacturing process of the sendust aluminum alloy powder that the present invention proposes are:

[0020] A, each raw material is weighed batching respectively, and the percentage by weight of each raw material is: iron 84%, silicon 9%, aluminum 6%, SiCa28 alloy 1%;

[0021] B. Use a graphite crucible as the body of a non-vacuum intermediate frequency induction furnace, put 4 iron rods with a diameter of 50mm and a length equivalent to the height of the graphite crucible in the graphite crucible, set the power of the non-vacuum intermediate frequency induction furnace to 20KW, and keep the iron The red hot state of the rod is 4 hours, and the temperature of the iron rod is used to preheat the graphite crucible for 4 hours;

[0022] C. Put in the prepared iron and silicon, and increase the power of the non-vacuum intermediate frequency induction furnace evenly from 20KW to 80KW within 20 minutes. When the iron and silicon are red, adjust t...

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Abstract

The invention discloses a manufacturing process for iron-silicon-aluminum alloy powder and belongs to the technical field of metal soft magnetic materials. The manufacturing process for the iron-silicon-aluminum alloy powder includes the manufacturing steps that A, raw materials are weighed and mixed; B, a crucible is preheated; C, iron and silicon are added, aluminum is added after the iron and the silicon are completely molten, silicon-calcium alloy is added after the aluminum is molten, and the mixture is cooled into an iron-silicon-aluminum alloy block after boiling; D, the alloy block is crushed into alloy materials of 0.1-0.8 cm<2>; E, the alloy materials are subjected to ring milling, so that powder smaller than 60 meshes is obtained; F, ethyl alcohol is added, wet milling is conducted for 1-30 h, and then solid powder is obtained; G, open-area baking is conducted for 1-2 h at the temperature of 30-80 DEG C, and then screening is conducted; and H, the screened powder is placed in an annealing furnace with protective gas to be subjected to annealing heat treatment for 1-2.5 h at the temperature of 850-890 DEG C. By manufacturing the iron-silicon-aluminum alloy powder according to the above steps, burning loss of the aluminum can be reduced, the production cost is reduced, and an oven is prevented from catching a fire and exploding.

Description

technical field [0001] The invention relates to a manufacturing process of metal soft magnetic materials, in particular to a manufacturing process of sendust aluminum alloy powder. Background technique [0002] Because metal soft magnetic materials have special functions of magnetoelectric conversion and energy storage filtering, they are widely used in various circuit designs of solar power generation, wind power generation, high-power lighting power supply, large electric vehicle fast charger and industrial control equipment. The iron-nickel and iron-nickel-molybdenum magnetic powder cores used to make alloy magnetic powder cores are expensive, and sendust magnetic powder cores, as a new type of magnetic material for electronic devices, have high saturation magnetic induction, high AC and DC superposition characteristics and good temperature. Stability, low core loss, low cost, suitable for high frequency, high power, miniaturization and anti-electromagnetic interference r...

Claims

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Application Information

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IPC IPC(8): C22C38/02C22C38/06C22C33/04B22F9/04B22F1/00
CPCC22C33/04C22C38/002C22C38/02C22C38/06B22F9/04B22F2009/043B22F1/142
Inventor 古前春
Owner 古前春
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