scholarly journals A Study of Hot Rolling Oil with Calcium Carbonate for Stainless Steel Process

2010 ◽  
Vol 5 (3) ◽  
pp. 181-186 ◽  
Author(s):  
Naoshi Shimotomai ◽  
Hajime Ihara ◽  
Hidetaka Nanao
Keyword(s):  
Stainless Steel ◽  
Calcium Carbonate ◽  
Hot Rolling ◽  
Rolling Oil

Model for Prediction of Microstructural Events During Rod Hot Rolling of Austenitic Stainless Steel

2002 ◽  
Vol 41 (4) ◽  
pp. 487-495
Author(s):  
T. El-Bitar ◽  
A. Ismail ◽  
I. Rashid ◽  
M.R. El-Koussy
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Hot Rolling

Evolution of Microstructure and Oxidation Layer of 430 Stainless Steel During Hot Rolling

2011 ◽  
Vol 194-196 ◽  
pp. 316-320
Author(s):  
Lian Hong Yang ◽  
Ya Zheng Liu ◽  
Le Yu Zhou ◽  
Long Jiao Li
Keyword(s):  
Stainless Steel ◽  
Hot Rolling ◽  
Experimental Result ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Oxidation Layer ◽  
Deformation Amount ◽  
430 Stainless Steel ◽  
Evolution Of Microstructure

OM, SEM, TEM and XRD were used to analyze microstructure and oxidation layer of 430 stainless steel during hot rolling, and microstructure characteristic and oxidation layer evolution rule under high temperature deformation were studied. It is shown that microstructure after each pass under laboratory rolling condition is composed of austenite and ferrite, but there are significant differences in the size, morphology and distribution of dual phase microstructure. Oxidation layer of each pass consists mostly of Fe2O3, Fe3O4 and FeCr2O4. Thickness of surface oxide film decreases from 12μm to about 4~5μm as rolling pass increases. Compared to experimental result of laboratory rolling, because high-pressure descaling is used in practical production, meanwhile deformation amount is higher and surface quality of roller is better, oxidation layer of finished product is uniform, distributes continuously and has strong internal bonding force with matrix.

Analysis of ZDDP Films on Sticking Defects by FEM during Hot Rolling of Ferritic Stainless Steel Strips

2016 ◽  
Vol 846 ◽  
pp. 96-101
Author(s):  
Liang Hao ◽  
Zheng Yi Jiang ◽  
Dian Yao Gong ◽  
Dong Bin Wei ◽  
Xia Wei Cheng ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Stainless Steel ◽  
Ferritic Stainless Steel ◽  
Hot Rolling ◽  
Steel Strip ◽  
Crack Size ◽  
Surface Characterisation ◽  
Fem Model ◽  
Steel Strips ◽  
Simulation Results

The aim of this study is to understand the effect of zinc dialkyl dithio phosphate (ZDDP) films on sticking defects during the hot rolling of ferritic stainless steel strips. The surface characterisation and crack propagation are very important for the sticking defects of ferritic stainless steel strip. A finite element method (FEM) model is constructed with different crack size ratios, in which the profile of the strip roughness and ZDDP films are taken into consideration. Simulation results show that the widths of cracks tend to be reduced with the introduction of ZDDP films, improving the sticking defects, which is confirmed by the hot rolling trials.

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