Evolution of Precipitates During Rolling and Annealing Process in Non-Oriented Electrical Steel

2019 ◽  
pp. 123-129
Author(s):  
Qiang Ren ◽  
Lifeng Zhang ◽  
Yan Luo ◽  
Lin Cheng ◽  
Piotr Roman Scheller
Keyword(s):  
Electrical Steel ◽  
Annealing Process ◽  
Evolution Of Precipitates

Magnetic Annealing on GNO Electrical Steel Fe-3.25% Si

2013 ◽  
Vol 758 ◽  
pp. 113-117 ◽  
Author(s):  
Gilberto Alexandre Castello-Branco ◽  
Jennifer Nadine Muller ◽  
Cristiane Maria Basto Bacaltchuk
Keyword(s):  
Magnetic Field ◽  
Grain Size ◽  
Electrical Steel ◽  
Annealing Process ◽  
Magnetic Annealing ◽  
Average Grain Size ◽  
Orientation Density ◽  
Cold Rolled ◽  
Small Grains ◽  
Electrical Motors

Grain non-oriented electrical steel has its main application in electrical motors and its microstructure significantly influences their efficiency. The objective of this work was to investigate whether or not magnetic field applied during annealing process affects grain growth and the development of important texture components leading to an improvement of the magnetic properties. GNO Fe-3.25%Si 75% cold rolled specimens were annealed inside magnetic field with strength of 17 T at the temperature of 800°C for 3, 10 and 30 minutes. Results of average grain size after magnetic annealing showed a microstructure formed by small grains and a few very large grains. Magnetic field did not increase orientation density of {100} oriented grains and Goss grains but was able to increase density of θ fiber and decrease the density of γ fiber.

Comprised of the Organization and Performance of Non-Oriented Electrical Steel with Cold and Heat Slab

2016 ◽  
Vol 852 ◽  
pp. 181-186
Author(s):  
Tie Ye ◽  
Zhen Yu Gao ◽  
Zhi Wen Lu ◽  
Zhi Guo Zhong
Keyword(s):  
Grain Size ◽  
Magnetic Properties ◽  
Cold Rolling ◽  
Electrical Steel ◽  
Annealing Process ◽  
Rolled Plate ◽  
Continuous Annealing ◽  
Production Test ◽  
Second Phase ◽  
Hot Rolled

The structure, texture, second phase and magnetic properties of non-oriented electrical steel with cold and heat slab were comprised through the production test. The research result shows that the grain size of hot rolled plate by cold slab is less than that of hot rolled plate by hot slab. But after cold rolling and annealing process, the grain size is consistent. Microstructure of hot rolled coil is recrystallized microstructure and the dispersion degree of texture orientation is high. Deformation makes the texture enhancement in cold rolling which become the strong texture based on {001} {111} and <110> texture. The Ti element has aggregation which can form hard impurities as TiN and TiSN to obstruct the recrystallization. Micro fine TiC formed in the annealing process which would block magnetic domain movement and reduce the magnetic properties of the product. MnS is precipitated impurities and the coarsening of MnS phase can reduce the domain block by improving the continuous annealing temperature and the magnetic field would be optimization.

A Quantitative Study of Precipitation Evolution during Annealing Treatments of a Ti-IF Steel

2011 ◽  
Vol 228-229 ◽  
pp. 1156-1162
Author(s):  
Guo Ming Zhu ◽  
Chao Lu ◽  
Yong Lin Kang ◽  
Lu Feng Gao
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Annealing Temperature ◽  
Annealing Process ◽  
Continuous Annealing ◽  
If Steel ◽  
Batch Annealing ◽  
Tic Particle ◽  
Evolution Of Precipitates

The evolution of precipitates size distribution of Ti-IF steel during annealing process has been investigated by simulating different continuous annealing (CA) and batch annealing (BA) treatments. The size and distributions of the precipitates (TiC in particular) are obtained by TEM observation and measured image analysis. They are then fitted by log-normally distribution and a model demonstrating the relationships of particle size distribution with annealing process parameters has been developed and validated by experiment results. The fine TiC precipitates (< 30 nm) vary after different annealing treatments. The effects of annealing temperature and holding time on the evolution of TiC particle size distribution are discussed.

Enhancement of RH Refractory Performance for Electrical Steel Processing

2019 ◽  
Author(s):  
S. Bharati ◽  
B. Patil ◽  
H. Vishwanath ◽  
P. Hittalamani ◽  
S. Joshi
Keyword(s):  
Electrical Steel ◽  
Steel Processing

Design of spline surface vacuum gripper for pick and place robotic arms

2020 ◽  
Vol 4 (2) ◽  
pp. 48-55
Author(s):  
A. S. Jamaludin ◽  
M. N. M. Razali ◽  
N. Jasman ◽  
A. N. A. Ghafar ◽  
M. A. Hadi
Keyword(s):  
Cycle Time ◽  
Industrial Robot ◽  
Annealing Process ◽  
Vacuum Suction ◽  
Robotic Arms ◽  
Custom Made ◽  
Pick And Place ◽  
Manufacturing Procedure ◽  
Production Flexibility ◽  
The Impact

The gripper is the most important part in an industrial robot. It is related with the environment around the robot. Today, the industrial robot grippers have to be tuned and custom made for each application by engineers, by searching to get the desired repeatability and behaviour. Vacuum suction is one of the grippers in Watch Case Press Production (WCPP) and a mechanism to improve the efficiency of the manufacturing procedure. Pick and place are the important process for the annealing process. Thus, by implementing vacuum suction gripper, the process of pick and place can be improved. The purpose of vacuum gripper other than design vacuum suction mechanism is to compare the effectiveness of vacuum suction gripper with the conventional pick and place gripper. Vacuum suction gripper is a mechanism to transport part and which later sequencing, eliminating and reducing the activities required to complete the process. Throughout this study, the process pick and place became more effective, the impact on the production of annealing process is faster. The vacuum suction gripper can pick all part at the production which will lower the loss of the productivity. In conclusion, vacuum suction gripper reduces the cycle time about 20%. Vacuum suction gripper can help lower the cycle time of a machine and allow more frequent process in order to increase the production flexibility.

Examination of Measurement Method for Magnetostriction of Electrical Steel Sheet with Lock-in Amplifier

2012 ◽  
Vol 132 (11) ◽  
pp. 1033-1038
Author(s):  
Yuichiro Kai ◽  
Yuji Tsuchida ◽  
Takashi Todaka ◽  
Masato Enokizono
Keyword(s):  
Measurement Method ◽  
Steel Sheet ◽  
Electrical Steel ◽  
Lock In ◽  
Electrical Steel Sheet
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