检索结果-南通市图书馆

Effect of Boron on Morphology of Inclusions in tire cord steel

在线全文

学校读者我要写书评

暂无评论

引用

Journal of Iron and steel Research International 2012年第4期19卷 22-27页

作者： CUI Huai-zhou CHEN Wei-qing State Key Laboratory of Advanced Metallurgy School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 100083 China Metallurgical Process Research Institute CentralIron and Steel Research Institute Beijing 100083 China

B2O3 was added to tire cord steel during refining in a carbon tube *** influence of boron on the deformability of oxide inclusions was studied by metallographic and scanning electron microscope（SEM） *** melting points of boron-bearing compound oxide inclusions were calculated using Factsage *** results showed that the main inclusion was a boron-bearing compound oxide and the deformation properties of the inclusions were clearly improved by adding *** the boron content was increased from 0.0046% to 0.039%,the proportion of long strip type inclusions changed slightly and the number of inclusions *** low-melting point areas of the MnO-SiO2-Al2O3 and CaO-SiO2-Al2O3 ternary system increased with the addition of ***,the area increased with the increase of B2O3 *** improvements in the deformation ability of the inclusions occurred when the B2O3 mass percent rose to 5% in the CaO-SiO2-Al2O3 inclusion system and to 10% in the MnO-SiO2-Al2O3 inclusion system

关键词： boron tire cord steel inclusions morphology

Simulation on solidification structure of 72A tire cord steel billet using CAFE method

在线全文

学校读者我要写书评

暂无评论

引用

China Foundry 2012年第1期9卷 53-59页

作者： Jing Cailiang Xu Zhigang Wang Ying Wang Wanjun School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China Technology Center of Xingtai Iron&steel Co. Ltd.Xingtai 054027HebeiChina

The solidification microstructure has an important effect on the mechanical properties of castings. Therefore, an FE （Finite Element） - CA （Cellular Automaton） coupling model was developed for the simulation of solidification structure during the continuous casting process of 72A tire cord steel. In the model, the effect of phase transformation （λ→γ→α） during solidification was considered based on a thermodynamic database. The effect of electromagnetic stirring （EMS） was determined by increasing both the thermal conductivity and crystal formation rate in the liquid phase. The results show that the cooling curves and solidification structure calculated by this model agree well with the experimental results. The optimum pouring temperature range for tire cord steel casting was also discussed based on the present model. By comprehensive consideration of billet quality and smooth production, the pouring temperature should be controlled at about 1,495 ℃ under the casting conditions of the local plant in this study.

关键词： tire cord steel solidification structure CAFE method phase transformation EMS

Effect of boron on inclusions morphology in tire cord steel

在线全文

学校读者我要写书评

暂无评论

引用

Baosteel Technical Research 2010年第S1期4卷 61-页

作者： CUI Huaizhou and CHEN Weiqing Department of Ferrous Metallurgy,School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China

B_2O^3 was added into tire cord steel during refining in carbon tube *** influence of boron which was added in tire cord steel on the deformability of oxide inclusions was studied by metallographic and scanning electron microscope(SEM) *** melting points of boron-bearing compound oxide inclusions were calculated by the software of *** results showed that the most part of inclusions were boron-bearing compound oxide and their deformation properties were obviously improved by adding B_2O_3 in *** the boron content was increased from 0.0046%to 0.039%,the proportion of long strip type inclusions changed a little and the number of inclusions *** low-melting point areas of MnO-SiO_2-Al_2O_3 and CaO-SiO_2-Al_2O_3 ternary system were increased due to adding B_2O_3 in ***,the areas increased with the increasing of B_2O_3 content in *** effect on low-melting point inclusion occurred when B_2O_3 content went up to 5% in CaO-SiO_2-Al_2O_3 inclusions system and to 10%in MnO-SiO_2-Al_2O_3 inclusions system.

关键词： boron tire cord steel inclusions morphology