Decreasing the core loss of grain-oriented silicon steel by laser processing

1997 ◽  
Vol 69 (1-3) ◽  
pp. 180-185 ◽  
Author(s):  
Jingdong Li ◽  
Yuqin Gu ◽  
Zenyuan Guo
Keyword(s):  
Laser Processing ◽  
Core Loss ◽  
Silicon Steel ◽  
The Core

scholarly journals Impact of addition of ca on clogging of SEN and magnetic properties of non-oriented silicon steel

2019 ◽  
Vol 55 (1) ◽  
pp. 39-46
Author(s):  
W. Kong ◽  
D.G. Cang
Keyword(s):  
Magnetic Properties ◽  
Continuous Casting ◽  
Casting Speed ◽  
Magnetic Induction ◽  
Core Loss ◽  
Submerged Entry Nozzle ◽  
Silicon Steel ◽  
The Core ◽  
Dissolved Aluminum ◽  
The Impact

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.

Thermal Stability Study of the Core Loss of Laser Etched Grain Oriented Silicon Steel

Applied laser ◽  
2015 ◽  
Vol 35 (1) ◽  
pp. 83-87
Author(s):  
朱虹 Zhu Hong ◽  
郭亮 Guo Liang ◽  
张庆茂 Zhang Qingmao
Keyword(s):  
Thermal Stability ◽  
Core Loss ◽  
Stability Study ◽  
Silicon Steel ◽  
The Core ◽  
Thermal Stability Study

Laser processing for reducing core loss of grain oriented silicon steel

1982 ◽  
Vol 53 (3) ◽  
pp. 2410-2412 ◽  
Author(s):  
T. Iuchi ◽  
S. Yamaguchi ◽  
T. Ichiyama ◽  
M. Nakamura ◽  
T. Ishimoto ◽  
...  
Keyword(s):  
Laser Processing ◽  
Core Loss ◽  
Silicon Steel

scholarly journals CO2 laser processing for reducing core loss of cold-rolled grain-oriented silicon steel

1991 ◽  
Vol 14 (5) ◽  
pp. 1249-1255 ◽  
Author(s):  
S C Patil ◽  
G Swaminathan ◽  
Manoj Kumar ◽  
P V Sastry ◽  
S B Ogale ◽  
...  
Keyword(s):  
Co2 Laser ◽  
Laser Processing ◽  
Core Loss ◽  
Silicon Steel ◽  
Cold Rolled

The Research of Non-Oriented Electrical Steel Processed by Stress Relief Annealing Experiments

2014 ◽  
Vol 887-888 ◽  
pp. 252-256
Author(s):  
Zhun Li ◽  
Jing Liu ◽  
Shi De Li ◽  
Ze Lin Zheng
Keyword(s):  
Magnetic Properties ◽  
Electrical Steel ◽  
Core Loss ◽  
Reference Method ◽  
Stress Relief ◽  
Hydrogen Atmosphere ◽  
Silicon Steel ◽  
Pure Hydrogen ◽  
Final Annealing ◽  
Annealing Experiments

A high grade non-oriented electrical steel final annealing product was processed by stress relief annealing experiments under pure hydrogen atmosphere using different process parameters. The samples were compared in the aspects of magnetic properties and anisotropy, then analyzed the phenomena concerned with grain size, texture and precipitates aspects. The experiments showed that the samples magnetic properties were most improved in the 850 degrees stress relief annealing experiment, thus providing a reference method for non-oriented silicon steel stress relief annealing experiments and to obtain low core loss non-oriented silicon steel.

scholarly journals Anisotropy of Magnetic Properties in Non-oriented Electrical Steel Sheets

1989 ◽  
Vol 11 (2-4) ◽  
pp. 159-170 ◽  
Author(s):  
M. Shiozaki ◽  
Y. Kurosaki
Keyword(s):  
Magnetic Properties ◽  
Magnetic Induction ◽  
Crystallographic Orientation ◽  
Electrical Steel ◽  
Core Loss ◽  
Fluorescent Lamp ◽  
Steel Sheets ◽  
The Core ◽  
Texture Change ◽  
Electrical Steel Sheets

The anisotropy of magnetic properties in non-oriented electrical steel sheets can be evaluated by measuring Epstein specimens in the radial directions. The magnetic properties measured on ring cores are practically equal to the approximate values of magnetic properties determined by Epstein specimens in the radial directions. Non-oriented electrical steel sheets with anisotropy are not desirable for motors but are suitable for transformers and fluorescent lamp ballasts. The core loss and magnetic induction as measured with ring specimens are better with non-oriented electrical steel sheets with anisotropy than with non-oriented electrical steel sheets with random crystallographic orientation. This phenomenon depends on the texture change of the product.

scholarly journals Effect of Refined Surface Domains Walls on the Core Losses Components in GO Silicon Steel at Different Frequencies

2020 ◽  
Vol 137 (5) ◽  
pp. 896-899
Author(s):  
I. Petrshynets ◽  
F. Kováč ◽  
V. Puchý ◽  
J. Füzer ◽  
P. Kollár ◽  
...  
Keyword(s):  
Silicon Steel ◽  
The Core ◽  
Core Losses ◽  
Surface Domains
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