Solidification Structure and Segregation of High Magnetic Induction Grain-Oriented Silicon Steel

The submerged entry nozzle (SEN) clogging has been happening during continuous casting (or CC for short) for nonoriented silicon steel. To solve the problem, the paper studied a flow rate through SEN, a node attached to one of them, and the impact on the clogging. The results showed that when SEN is clogged seriously, the casting speed has to decrease below the target casting speed and that SEN clogging can be predicted by comparing the actual value and the theoretical one of a casting speed. Al2O3 and its composite inclusions caused the SEN clogging and the addition of Ca can solve SEN clogging during CC of the silicon steel both theoretically and practically. Furthermore, the impact of the addition of Ca on the magnetic properties of the steel were analyzed. The results showed that the core loss and the magnetic induction of the silicon steel decreased by using the addition of Ca, which generated more dissolved Aluminum, and the addition of Ca generated more harmful textures, which reduced the magnetic induction.

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Effects of segregated sulfur on recrystallization texture and magnetic induction in thin-gauged 3% silicon steel

IEEE Transactions on Magnetics ◽

10.1109/20.800528 ◽

1999 ◽

Vol 35 (5) ◽

pp. 3373-3375 ◽

Cited By ~ 2

Author(s):

K.N. Chai ◽

N.H. Heo ◽

J.G. Na ◽

H.-T. Jeong ◽

S.R. Lee

Keyword(s):

Magnetic Induction ◽

Recrystallization Texture ◽

Silicon Steel

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Microstructure & texture evolution and magnetic properties of high magnetic-induction 6.5% Si electrical steel thin sheet fabricated by a specially designed rolling route

Journal of Central South University ◽

10.1007/s11771-016-3098-9 ◽

2016 ◽

Vol 23 (3) ◽

pp. 523-528 ◽

Cited By ~ 1

Author(s):

Hao-ze Li ◽

Hai-tao Liu ◽

Zhen-yu Liu ◽

Xiang-long Wang ◽

Zhong-han Luo ◽

...

Keyword(s):

Magnetic Properties ◽

Magnetic Induction ◽

Electrical Steel ◽

Texture Evolution ◽

Thin Sheet ◽

Rolling Route ◽

High Magnetic Induction

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Study of Microstructure and Magnetic Properties on High-Silicon Steel Composite Sheet

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.401-403.828 ◽

2013 ◽

Vol 401-403 ◽

pp. 828-831

Author(s):

Xing Wen Yang ◽

Jing Liu ◽

Jing Tao Han ◽

Shuai Ji

Keyword(s):

Magnetic Properties ◽

Magnetic Induction ◽

Silicon Content ◽

Silicon Steel ◽

Iron Loss ◽

Composite Sheet ◽

High Silicon Steel ◽

Composite Casting ◽

Steel Composite ◽

High Silicon

High-silicon composite casting blank with the silicon content of 12wt% in core layer and with the silicon content of 3wt% in coating layer was fabricated by composite casting. The high-silicon steel composite sheet with smooth surface and good shape can be obtained by hot rolling and warm rolling. After high temperature diffusion and pickling process, the composite sheet with thickness of 0.44mm and homogeneous silicon content of 5.8wt.% could be achieved finally. The test results of magnetic properties show that the magnetic induction intensity B50and iron loss P15/50are 1.778T and 2.892w/kg respectively. It implies that the high-silicon steel composite sheet with high magnetic induction and low iron loss can be prepared by composite casting and rolling process.

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Rayleigh-Bénard Convection of Paramagnetic Liquid under a Magnetic Field from Permanent Magnets

Symmetry ◽

10.3390/sym12030341 ◽

2020 ◽

Vol 12 (3) ◽

pp. 341

Author(s):

Kengo Wada ◽

Masayuki Kaneda ◽

Kazuhiko Suga

Keyword(s):

Magnetic Field ◽

Heat Transfer ◽

Magnetic Induction ◽

Magnetic Force ◽

Permanent Magnets ◽

Cell Pattern ◽

Benard Convection ◽

Rayleigh Benard Convection ◽

Rayleigh Benard ◽

High Magnetic Induction

The convection control is important in terms of the heat transfer enhancement and improvement of the applied devices and resultant products. In this study, the convection control by a magnetic field from block permanent magnets is numerically investigated on the Rayleigh-Bénard convection of paramagnetic fluid. To enhance the magnetic force from the available permanent magnets, pairs of alternating-pole magnets are employed and aligned near the bottom heated wall. The lattice Boltzmann method is employed for the computation of the heat and fluid flow with the consideration of buoyancy and magnetothermal force on the working fluid. It is found that, since the magnetic force at the junction of pair magnets becomes strong remarkably and in the same direction as the gravity, descending convection flow is locally enhanced and the pair of symmetrical roll cells near the magnet junction becomes longitudinal. The local heat transfer corresponds to the affected roll cell pattern; locally enhanced at the magnet junctions and low heat transfer area is shifted aside the magnet outer edge. The averaged Nusselt number on the hot wall also increases proportionally to the magnetic induction but it is saturated at high magnetic induction. This suggests the roll cell pattern is no more largely affected at extremely-high magnetic induction.

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