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Iron-based magnetic powder forming process and equipment

A molding process and molding equipment technology, applied in the direction of inductance/transformer/magnet manufacturing, electrical components, circuits, etc., can solve the problem of product magnetic performance decline and other issues

Pending Publication Date: 2022-04-15
DAYOU SCIENTFIC & TECHNICAL CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0004] Based on this, the purpose of the present invention is to provide an iron-based magnetic powder forming process and equipment, which is used to solve the technical problem that the internal stress of the iron-based magnetic powder material cold-pressed in the prior art leads to a decrease in the magnetic properties of the product

Method used

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  • Iron-based magnetic powder forming process and equipment
  • Iron-based magnetic powder forming process and equipment

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Embodiment 1

[0047] The iron-based magnetic powder molding process in this embodiment includes the following steps:

[0048] Take an appropriate amount of iron, phosphorus, niobium, chromium, and boron carbon materials, put the iron, phosphorus, niobium, chromium, and boron carbon materials into the mold, evacuate the cavity, pass current on the press, and conduct conductive heating on the iron, phosphorus, niobium, chromium, and boron carbon materials through the mold. When the heating temperature reaches 480°C, pressurize the iron-phosphorus-niobium-chromium-boron-carbon material through the press, and when the pressure reaches 100 MPa, pressurize the iron-phosphorus-niobium-chromium-boron-carbon material in the mold. After the phosphorus-niobium-chromium-boron-carbon material is formed, it is taken out, and the compaction density of the formed iron-phosphorus-niobium-chromium-boron-carbon material is measured to be 87%.

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Abstract

The invention provides an iron-based magnetic powder forming process and equipment, the process is realized by the iron-based magnetic powder forming equipment, and the process comprises the following steps: taking a proper amount of iron-based magnetic powder, and placing the iron-based magnetic powder on a mold for heating; the heated iron-based magnetic powder is pressurized through a pressing machine, so that the iron-based magnetic powder is extruded by the mold; and when the iron-based magnetic powder is pressurized to preset pressure, the pressurized iron-based magnetic powder is subjected to pressure maintaining for a period of time and then taken out, and the formed iron-based magnetic powder is obtained. According to the iron-based magnetic powder forming process and equipment, by arranging the iron-based magnetic powder forming equipment, the situation that internal stress is generated in the formed iron-based magnetic powder material, and the magnetic performance of the formed iron-based magnetic powder material is affected is avoided, and the technical problem that the magnetic performance of a product is reduced due to the generated internal stress of the iron-based magnetic powder material formed through cold pressing in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of powder molding, in particular to an iron-based magnetic powder molding process and equipment. Background technique [0002] At present, with the trend of high frequency and miniaturization of electronic components, the requirements for inductance components are becoming more and more stringent, the requirements for soft magnetic powder materials for inductance are also getting higher and higher, and the requirements for powder magnetic properties are also increasing. high. [0003] Iron-based magnetic powder materials have excellent magnetic properties, high saturation magnetic induction, high magnetic permeability, low coercive force and low loss, but due to the plasticity of the material itself, it has less deformation and is not easy to form. Traditional cold pressing can use high pressure High compaction density is achieved, but the internal stress will lead to a decrease in magnetic properties, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/14C22C38/00C22C38/02C22C38/20C22C38/26C22C38/32H01F41/00
Inventor 毛宇辰常春涛李忞毛文龙毛先华
Owner DAYOU SCIENTFIC & TECHNICAL CO LTD
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