scholarly journals Experimental and Numerical Study on the Effect of ZDDP Films on Sticking During Hot Rolling of Ferritic Stainless Steel Strip

2016 ◽  
Vol 47 (10) ◽  
pp. 5195-5202 ◽  
Author(s):  
Liang Hao ◽  
Zhengyi Jiang ◽  
Dongbin Wei ◽  
Dianyao Gong ◽  
Xiawei Cheng ◽  
...  
2016 ◽  
Vol 846 ◽  
pp. 96-101
Author(s):  
Liang Hao ◽  
Zheng Yi Jiang ◽  
Dian Yao Gong ◽  
Dong Bin Wei ◽  
Xia Wei Cheng ◽  
...  

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.


2009 ◽  
Vol 507 (1-2) ◽  
pp. 66-73 ◽  
Author(s):  
Dae Jin Ha ◽  
Hyo Kyung Sung ◽  
Sunghak Lee ◽  
Jong Seog Lee ◽  
Yong Deuk Lee

2016 ◽  
Vol 5 (1) ◽  
pp. 92-99 ◽  
Author(s):  
Flávia Vieira Braga ◽  
Diana Pérez Escobar ◽  
Thompson Junior Ávila Reis ◽  
Nilton José Lucinda de Oliveira ◽  
Margareth Spangler Andrade

2012 ◽  
Vol 500 ◽  
pp. 403-409
Author(s):  
Dong Bin Wei ◽  
Zheng Yi Jiang ◽  
Jun Xia Huang ◽  
Ai Wen Zhang ◽  
Xu Shi ◽  
...  

A well-defined boundary condition is important for generating an accurate model for simulating metal forming process. It is important to characterize the features of the oxide scale in hot rolling of stainless steel strip. Short time oxidation tests in humid air with water vapor content of 7.0 vol. % were carried out using Gleeble 3500 thermo-mechanical simulator. The deformation, surface morphology of oxide scale, and the friction in hot rolling were studied by conducting hot rolling tests. The results show that the surface roughness decreases with an increase of reduction. The effect of oxide scale on friction and surface roughness transfer in hot rolling depends on oxide scale generated during reheating. When reheating time is increased, the average thickness of oxide scale increases and a relatively rough surface was obtained after hot rolling. Thick oxide scale of 301 steel shows the high lubricative effect.


2016 ◽  
Vol 31 (5) ◽  
pp. 635-645 ◽  
Author(s):  
Flávia Vieira Braga ◽  
Diana Pérez Escobar ◽  
Nilton José Lucinda de Oliveira ◽  
Margareth Spangler Andrade

Abstract


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