Introduction

Valverde, A. A.

doi:10.1007/978-3-030-30778-3_1

Cited by 1 publication

(1 citation statement)

References 95 publications

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“…Powder metallurgy uses various particulate metals and alloys as raw materials. Particle size decrease increases interparticle interaction leading to changing of particulate system technological characteristics [1]. Considerable theoretical and experimental material about influence of magnetic fields on rheological state of magnetic fluids [2][3][4] and particulate materials in fluidized state [5][6][7] was accumulated.…”

Section: Introductionmentioning

confidence: 99%

Technological processes intensification in devices with magneto-fluidized bed

Egorov

2017

MATEC Web Conf.

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The paper shows the efficiency of application of magneto-fluidized bed formed of ferromagnetic materials in press-forms dosed filling and milling devices. For powders without natural fluidity, dosing device is situated between electromagnets creating constant magnetic field with horizontal induction lines and alternating gradient magnetic field with vertical induction lines and higher induction gradient in the lowest part of chamber with powder. This configuration allows development of uniform efflux speed of ferromagnetic powders from 2 mm diameter opening. For example, mass efflux speed of strontium ferrite powder with 1 µm average particle size in magneto-fluidized bed reached 181.1 mg/s and the dosing time of 2000 mg of this powder was 11.1 s. For practical usage of magneto-fluidized bed in the milling device, beater mill is situated between electromagnet poles in the way that induction lines of constant and alternating gradient magnetic fields were mutually perpendicular and parallel to the plane of rotating beaters. Milling of particulate strontium ferrite with 1558.5 µm average particle size during 120 minutes in magneto-fluidized bed allows increasing milling degree in 16.2 times by comparison with processing without electromagnetic effect.

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Section: Introductionmentioning

confidence: 99%

Technological processes intensification in devices with magneto-fluidized bed

Egorov

2017

MATEC Web Conf.

View full text Add to dashboard Cite

show abstract

Introduction

Cited by 1 publication

References 95 publications

Technological processes intensification in devices with magneto-fluidized bed

Technological processes intensification in devices with magneto-fluidized bed

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