scholarly journals Effect of Slab Reheating Temperature on Cold Rolling Texture Evolution of Nb-Containing Grain-Oriented Silicon Steel

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1478
Author(s):  
Liguang Wang ◽  
Shuhuan Wang ◽  
Jie Li ◽  
Jinyu Liang ◽  
Yunli Feng
Keyword(s):  
Cold Rolling ◽  
Texture Evolution ◽  
Cube Texture ◽  
Rolling Texture ◽  
Rolling Process ◽  
Silicon Steel ◽  
Single Stage ◽  
Two Stage ◽  
Goss Texture ◽  
Key Factor

Texture control of grain-oriented silicon steel is the key factor to ensure the magnetic properties of the finished product. Nb-containing grain-oriented silicon steel with different slab reheating temperatures was hot rolled followed by single-stage or two-stage cold rolling, and the textures were also analyzed. In the single-stage cold rolling process, as the slab reheating temperature is reduced, the intensity of the rotating cube texture {100}<011> and Goss texture {011}<100> drops, and that of the {111}<112> texture increases. In the two-stage cold rolling process, with the decrease in the slab reheating temperature, the intensity of the {111}<112> texture increases from 4.958 to 6.809. At the same slab reheating temperature, the intensity of the rotating cube texture declines more significantly in the two-stage cold rolling process. Finally, two-stage cold rolling with the slab reheating temperature of 1220 °C is found to be more beneficial for the formation of a sharp Goss texture during the second recrystallization. The magnetic induction intensity B800 of the final product is 1.87T, and the iron loss P1.7/50 is 1.36 W/kg.

Texture Evolution in Non-Oriented Silicon Steel Processed by Twin-Roll Casting

2012 ◽  
Vol 452-453 ◽  
pp. 7-11 ◽  
Author(s):  
Wei Pei ◽  
Yu Hui Sha ◽  
Fang Zhang ◽  
Liang Zuo
Keyword(s):  
Cold Rolling ◽  
Texture Evolution ◽  
Casting Process ◽  
Rolling Process ◽  
Silicon Steel ◽  
Recrystallization Annealing ◽  
Twin Roll Casting ◽  
Steel Sheets ◽  
Roll Casting ◽  
Twin Roll

In this paper, non-silicon steel sheets were produced by both twin-roll casting method and conventional process. Orientation characteristics and texture evolution of the sheets during casting, cold rolling and recrystallization annealing were investigated for comparison. It was found that the subsurface of twin-roll casting strips are characterized by weak {100} orientation while the central layer by random orientation. Twin-roll casting process can decrease α fiber (//RD) and increase γ fiber (//ND) during cold rolling process. Consequently, the η fiber (//RD) favorable for magnetic properties of non-silicon steels is enhanced and the detrimental {111} component is suppressed after annealing.

Effect of Finishing Temperature on Texture Evolution and Magnetic Properties in Heavy Cold Rolled High Silicon Steel Thin Sheets

2011 ◽  
Vol 306-307 ◽  
pp. 381-384
Author(s):  
Jin Long Liu ◽  
Yu Hui Sha ◽  
Fang Zhang ◽  
Yong Chuang Yao ◽  
Ji Chao Li ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Cold Rolling ◽  
Recrystallization Texture ◽  
Texture Evolution ◽  
Thin Sheet ◽  
Rolling Texture ◽  
Silicon Steel ◽  
Final Annealing ◽  
High Silicon Steel ◽  
High Silicon

0.2mm-thick high silicon steel thin sheet under 94% cold rolling reductions has been successfully produced by conventional rolling method. Texture evolution during hot rolling, cold rolling and final annealing as well as magnetic properties has been investigated with emphasis on the effect of finishing temperature. It is found that a favorable strong {001}<210> recrystallization texture and evidently improved magnetic properties can be obtained at the finishing temperature of 900°C, which is in contrast with relatively strong detrimental {111}<112> and weak {001}<210> recrystallization texture at the finishing temperature of 700°C. Effects of finishing temperature can be explained in terms of the cold rolling texture due to different texture morphology in hot bands.

The Effects of Cross Cold Rolling Reductions on Microstructure of Ti+P-IF Steel

2014 ◽  
Vol 576 ◽  
pp. 171-175
Author(s):  
Yang Du ◽  
Guo Lin Xu
Keyword(s):  
Cold Rolling ◽  
Texture Evolution ◽  
Cube Texture ◽  
Rolling Reduction ◽  
Second Phase ◽  
If Steel ◽  
Texture Measurement ◽  
Tem Analysis ◽  
Goss Texture ◽  
Cold Rolling Reduction

Cold-rolling process is an important stage in Ti+P-IF steel manufacturing process, and cold rolling reduction is a main parameter. The research of recrystallization microstructure change and texture evolution of Ti+P-IF steel in cross cold rolling reductions has important meaning in study of high strong IF steel. In this paper, hot rolled Ti+P-IF steel in austenite was studied, cold rolling reduction was used as the effect factor, The study was carried out on the basis of microstructure observation, TEM analysis and texture measurement. The sizes of the grains within the recrystallization organizations were gradually diminished as the cold rolling reduction increased. At the same time, the second phase particles had showed an aggregated distribution, and there is a rule in the components of the texture that the Goss texture and the Rotating cube texture are transformed intoγtexture evolution rule.

scholarly journals Twinning Behavior in Cold-Rolling Ultra-Thin Grain-Oriented Silicon Steel

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 187
Author(s):  
Bo Zhang ◽  
Li Meng ◽  
Guang Ma ◽  
Ning Zhang ◽  
Guobao Li ◽  
...  
Keyword(s):  
Cold Rolling ◽  
Rolling Process ◽  
Silicon Steel ◽  
Mechanical Work ◽  
Area Fraction ◽  
Raw Material ◽  
Rolling Reduction ◽  
Cold Rolling Reduction ◽  
Schmid Factor ◽  
Twinning System

Twinning behaviors in grains during cold rolling have been systematically studied in preparing ultra-thin grain-oriented silicon steel (UTGO) using a commercial glassless grain-oriented silicon steel as raw material. It is found that the twinning system with the maximum Schmid factor and shear mechanical work would be activated. The area fraction of twins increased with the cold rolling reduction. The orientations of twins mainly appeared to be α-fiber (<110>//RD), most of which were {001}<110> orientation. Analysis via combining deformation orientation simulation and twinning orientation calculation suggested that {001}<110> oriented twinning occurred at 40–50% rolling reduction. The simulation also confirmed more {100} <011> oriented twins would be produced in the cold rolling process and their orientation also showed less deviation from ideal {001}<110> orientation when a raw material with a higher content of exact Goss oriented grains was used.

scholarly journals Silicon Steel Strip Profile Control Technology for Six-High Cold Rolling Mill with Small Work Roll Radius

Metals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 401
Author(s):  
Hainan He ◽  
Jian Shao ◽  
Xiaochen Wang ◽  
Quan Yang ◽  
Xiawei Feng
Keyword(s):  
Cold Rolling ◽  
Rolling Mill ◽  
Steel Strip ◽  
Work Roll ◽  
Rolling Process ◽  
Silicon Steel ◽  
Cold Rolling Mill ◽  
Strip Profile ◽  
Profile Control ◽  
Small Work

Due to the requirement of magnetic properties of silicon steel sheets, producing high-precision size strips is the main aim of the cold rolling industry. The tapered work roll shifting technique of the six-high cold rolling mill is effective in reducing the difference in transverse thickness of the strip edge, but the effective area is limited, especially for a high crown strip after the hot rolling process. The six-high mill with a small work roll size can produce a strip with higher strength and lower thickness under a smaller rolling load. At the same time, the profile of the strip can be substantially improved. By advancing a well-established analytical method, a series of simulation analyses are conducted to reveal the effectiveness of a small work roll radius for the strip profile in the six-high cold rolling process. Through the analysis of flattening deformation and deflection deformation on the load, the change rule of the strip profile produced by the work roll with a small roll diameter can be obtained. Combined with theoretical analysis and industrial experiments, it can be found that the improvement effect of the small work roll radius on the profile of the silicon strip is as significant.

Analysis for the Propagation of Edge Crack of Silicon Steel during Cold Rolling Process Based on GTN Damage Model

2012 ◽  
Vol 482-484 ◽  
pp. 487-492
Author(s):  
Yu Xi Yan ◽  
Quan Sun ◽  
Jian Jun Chen ◽  
Hong Liang Pan
Keyword(s):  
Cold Rolling ◽  
Edge Crack ◽  
Damage Model ◽  
Rolling Process ◽  
Silicon Steel ◽  
Damage Distribution ◽  
Initiation And Propagation ◽  
Gtn Damage Model ◽  
Edge Cracks ◽  
Good Agreement

Silicon steels tend to develop edge cracks during cold rolling, which need to be removed and cause rupture of the steel in the rolling mill. Hence, it is necessary to understand the formation of edge cracks. The damage distribution and the initiation and propagation of edge cracks occur around the notch tip during cold rolling process was investigated by using GTN damage model. The damage parameters f0, fcand fFare determined by tension experiments and SEM observation. The influence of various rolling parameters on damage distribution and crack length was simulated by using ABAQUS. The numerical results show that the GTN damage model is available to prediction the initiation and propagation of edge cracks during rolling process. Parametric study carried out in this present work reveals that the possible occurrence of edge cracks is higher at larger reduction, higher friction coefficient, smaller roll radius and stronger unit tension. The simulation and experimental results have a good agreement .

Sign in / Sign up

Export Citation Format

Share Document