Results 1 to 10 of about 2,762 (163)
Evolution of nonmetallic inclusions in pipeline steel during LF and VD refining process
High Temperature Materials and Processes, 2020 The formation and evolution of nonmetallic inclusions in pipeline steel were investigated by SEM, EDS and INCA Feature Analysis System, with the industrial process of electric arc furnace → ladle furnace (LF) refining → vacuum degassing → continuous ...
Zhu Hangyu +4 more
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Effect of MgO Content in LF Refining Slag on Inclusion Removal and Cleanliness Improvement in GCr15 Bearing Steel. [PDF]
Materials (Basel)In this study, a laboratory-scale slag–steel reaction experiment was conducted to systematically evaluate the influence of the initial MgO content (3–7 wt.%) in LF refining slag on the cleanliness of GCr15 bearing steel. The assessment was performed from multiple perspectives by comparing the total oxygen content (T[O]) in molten steel, the inclusion ...
Guo Z, Sun Y.
europepmc +4 more sources
Industrial experimental study on dearsenication in LF refining process
工程科学学报, 2020 With the gradual depletion of high-grade iron ore resources, the usage amount of low-grade iron ore is increasing year by year. Moreover, given the environmental protection requirements and the objective to reduce industrial cost, the usage of scrap is ...
Wen-bo LI, Hai-quan ZHAO
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The forcast of slag addition during the ladle furnace (LF) refining process based on LWOA-TSVR
Metalurgija, 2023 LF refining slag addition is an important factor affecting the end steel composition of the refining process. In order to better control the end steel composition and improve the production efficiency, this paper uses an improved whale optimization ...
C. Y. Shi +8 more
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LF Refining Liquid Slag Recycling to Reduce the Refining Cost Practice
Jinshu shijieWenhui WANG +7 more
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A Bidirectional Refinement Type System for LF
Electronic Notes in Theoretical Computer Science, 2008 We present a system of refinement types for LF in the style of recent formulations where only canonical forms are well-typed. Both the usual LF rules and the rules for type refinements are bidirectional, leading to a straightforward proof of decidability of type-checking even in the presence of intersection types.
William Lovas, Frank Pfenning
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Gasification desulfurization and resource utilization of ladle furnace refining slag
工程科学学报, 2018 The present situation and utilization mode of LF refining slag were investigated in detail for more than 30 typical iron and steel enterprises in China.It is found that the treatment method of LF refining slag is relatively simple, the utilization level ...
LIN Lu +5 more
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Steel refining possibilities in LF
IOP Conference Series: Materials Science and Engineering, 2018 This article presents the main possibilities for steel refining in Ladle Furnace (LF). These, are presented: steelmaking stages, steel refining through argon bottom stirring, online control of the bottom stirring, bottom stirring diagram during LF treatment of a heat, porous plug influence over the argon stirring, bottom stirring porous plug, analysis ...
M G Dumitru +4 more
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Optimization of the refining slag composition of SPHC steel with low silicon low carbon
工程科学学报, 2016 To improve the effect of LF refining on SPHC steel, thermodynamics software FactSage was used to analyze the physi-cochemical properties of the LF refining slag system, and then the corresponding optimization scheme was verified by industrial verifi ...
LIAO Hang +3 more
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Viscosities of LF Slags and Their Impact on Ladle Refining.
ISIJ International, 1997 The traditional approach to modeling ladle processes involvea critical survey of the thermodynamic aspects of the processincluding mass and heat balantes at the macroscopic level. Onthe other hand, the macrokinetics, specific to the reactor haveoften been studied separately, using computational fluiddynamits.
Jönsson, P. G. +2 more
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