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Iron-based metallic glass alloy powder

An iron-based metal and glass alloy technology, which is applied in metal processing equipment, magnetic objects, transportation and packaging, etc., can solve the problem of easy ignition of iron-based metal glass alloy powder.

Inactive Publication Date: 2018-12-21
SINTOKOGIO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0021] Therefore, the object of the present invention is to solve the problem of the flammability of iron-based metallic glass alloy powder, and its object is to provide a flame-retardant iron-based metallic glass alloy powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0167] The basic composition and the corrosion resistance modifying component were adjusted so that the corrosion resistance modifying component had the content shown in the table below, and the obtained material mixture was melted in a high-frequency induction furnace, and passed through the water mist under the following conditions: Chemical method to obtain powder with the target composition.

[0168]

[0169] ·Water pressure: 100MPa

[0170] ·Water volume: 100L / min

[0171] ·Water temperature: 20℃

[0172] ·Orifice diameter: φ4mm

[0173] ·Molten raw material temperature: 1500℃

[0174] The obtained iron-based metallic glass alloy powder was classified as D using an airflow classifier (manufactured by Nisshin Engineering Inc.: TUURBO CLASSIFIER). 50 = 2 ± 0.3 μm. The particle size was measured with a laser diffraction particle size distribution analyzer (manufactured by NIKKISO CO., LTD.: Microtrac MT3300EX II (wet type)). The content rate of a semimetal element an...

no. 1 approach

[0182]

[0183] [Table 2]

no. 2 approach

[0185]

[0186] [table 3]

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Abstract

The present invention provides an iron-based metallic glass alloy powder containing an iron-based metallic element group having Fe as the main component thereof, a metalloid element group comprising Si, B, P, and C, a small amount of at least one species of an element group for improving a degree of supercooling, selected from the group comprising Nb and Mo, and, depending on circumstances, a corrosion resistance modifying component, wherein the total amount of the metalloid element group and the total amount of the corrosion resistance modifying component are set to a predetermined range, andthe iron-based metallic glass alloy powder having a particle diameter of 30 [mu]m or less.

Description

technical field [0001] The present invention relates to a flame-retardant iron-based metallic glass alloy powder that can be used as a magnetic material for electronic components such as inductors and choke coils. Background technique [0002] Metallic glass is a kind of amorphous metal. So far, hundreds of alloy compositions involving iron base and titanium base have been discovered. Among them, iron-based metallic glass alloys can obtain excellent magnetic properties during powder compaction, so they can be expected to be used as magnetic materials for manufacturing electronic components such as inductors and choke coils, electromagnetic wave shields, and noise suppression sheets for electronic components, for example. Utilization in a wide range of applications such as materials and the like (Patent Document 1). [0003] In general, noise suppression sheets are used near electronic devices that generate heat, and therefore flame retardancy is required. Therefore, it has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F1/06B22F1/08B22F1/105
CPCC22C45/008C22C45/02C22C33/02B22F2009/0828H01F1/15308B22F2999/00B22F1/00B22F1/06B22F1/105B22F1/08C22C1/11C22C2200/02C22C2202/02B22F5/00C22C38/02C22C38/08C22C38/10B22F2301/35B22F9/082B22F2304/10
Inventor 林慎吾木野泰志水野刚彦
Owner SINTOKOGIO LTD
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