A Study of the Causes of Failure of Permanent Magnets from Cast Hard Magnetic Alloys

Kamenskaya, N. I.; Sein, V. A.; Zvereva, M. I.

doi:10.1007/s11041-017-0134-9

Cited by 4 publications

(2 citation statements)

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“…The exploitation principle of such rollers is based on the laws of electromagnetic induction, whereby a conductor moving in the magnetic field is slowed down due to interaction between eddy currents in the brake conductor and the external magnetic field [12].…”

Section: Fig 1 Pallet Flow Rackmentioning

confidence: 99%

Pallet Motion on a Magnetic Brake Roller

Шарифуллин

Носко

Safronov

2022

Acta Mechanica Et Automatica

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The brake roller is one of the elements for the safe operation of gravity flow pallet racks. The brake roller of the magnetic (eddy current) type magnetic brake roller (MBR) is the most promising brake type. The working principle of the MBR is based on electromagnetic induction laws, according to which the braking of a conductor moving in the magnetic field is caused by the interaction of the conductor’s eddy currents with the external magnetic field. In the paper, a mathematical model of the pallet motion on an MBR was developed. The equation of motion of the pallet on the MBR was derived. The calculation results were compared with the results of experimental studies of the pallet motion velocity on the MBR. For pallet speed under “drag peak” speed, the error of the mathematical model is <7.7%, and the error starts increasing once over the “drag peak” speed. Additional investigation of the coefficient of magnetic viscosity for speeds greater than the “drag peak” speed is required.

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Section: Fig 1 Pallet Flow Rackmentioning

confidence: 99%

Pallet Motion on a Magnetic Brake Roller

Шарифуллин

Носко

Safronov

2022

Acta Mechanica Et Automatica

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“…The principle of operation of such rollers is based on the laws of electromagnetic induction and involves the deceleration of a conductor moving in a magnetic field, due to the interaction of eddy currents (or Foucault currents) arising in the volume of the conductor with the external magnetic field [5].…”

Section: Introductionmentioning

confidence: 99%

Mathematical Model of the Process of Pallet Movement Along the Magnetic Type Centrifugal Brake Roller

2021

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One of the main elements of safe operation of gravity flow racks used in pallet racks is a brake roller. The most promising design is a centrifugal brake roller of magnetic (eddy current) type. The principle of operation of such rollers is based on the laws of electromagnetic induction and involves the deceleration of a conductor moving in a magnetic field, due to the interaction of eddy currents (or Foucault currents) arising in the volume of the conductor, with an external magnetic field. The mathematical model of the process of pallet movement along a centrifugal brake roller of magnetic type is developed in the article. The equation of the speed of movement of the pallet along the centrifugal brake roller of magnetic type is obtained. Comparative analysis of the speed of movement of a pallet along centrifugal and disc brake rollers of magnetic type is carried out.

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Improving the quality of magnets made of the Fe-Al-Ni-Co alloy at their workpiece casting

Golovkin¹

2023

PoHEI.MB

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Metallographic analysis of the magnet material made from the Fe-Al-Ni-Co made it possible to determine that melt excessive overheating before casting reduced the product target characteristics due to formation of various internal defects. Inaccessibility was shown of high microchemical inhomogeneity and internal stresses that led to formation of cracks in the casting material and destruction of the columnar grains deteriorating the finished magnets performance.

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A Study of the Causes of Failure of Permanent Magnets from Cast Hard Magnetic Alloys

Cited by 4 publications

References 0 publications

Pallet Motion on a Magnetic Brake Roller

Pallet Motion on a Magnetic Brake Roller

Mathematical Model of the Process of Pallet Movement Along the Magnetic Type Centrifugal Brake Roller

Improving the quality of magnets made of the Fe-Al-Ni-Co alloy at their workpiece casting

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