Abstract

AbstractA beam blank is ideal for H-beam production, but there are more defects in/on beam blanks than other common blanks. The study of the H-beam blank quality assurance system has great significance for production to determine the key factors causing defects and optimise the casting process parameters. Experimental analysis and numerical simulation, based on an actual production process, were used as research methods. The former was used to test and analyse the cracks, inclusions, and the flux in the mould to determine the preliminary factors causing defects in a beam blank. The latter was used to simulate the flow and temperature fields and the movement of inclusions to determine the key factor leading to defects and to optimize the casting process parameters. Online implementation of the recommendations of this project was developed, which proved that it is very useful and efficient to control surface cracks on the web and enhance cleanliness of an H-beam blank.

Highlights

  • A beam blank is ideal for H-beam production, but there are more defects in/on beam blanks than other common blanks

  • Experimental analysis and numerical simulation, based on an actual production process, were used as research methods. The former was used to test and analyse the cracks, inclusions, and the flux in the mould to determine the preliminary factors causing defects in a beam blank. The latter was used to simulate the flow and temperature fields and the movement of inclusions to determine the key factor leading to defects and to optimize the casting process parameters

  • Two research methods were employed, i.e., experimental analysis and numerical simulation. The former was used to test and analyse the cracks, inclusions, and the flux in the mould, and determine the preliminary factor causing defects of a beam blank. The latter simulated the flow field, temperature field, and the movement of inclusions to determine the key factor that leads to defects and thereby optimize the casting process parameters

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Summary

Introduction

Abstract: A beam blank is ideal for H-beam production, but there are more defects in/on beam blanks than other common blanks. Experimental analysis and numerical simulation, based on an actual production process, were used as research methods The former was used to test and analyse the cracks, inclusions, and the flux in the mould to determine the preliminary factors causing defects in a beam blank. Two research methods were employed, i.e., experimental analysis and numerical simulation The former was used to test and analyse the cracks, inclusions, and the flux in the mould, and determine the preliminary factor causing defects of a beam blank. The latter simulated the flow field, temperature field, and the movement of inclusions to determine the key factor that leads to defects and thereby optimize the casting process parameters

Experimental Analysis
Analysis of cleanliness of beam blank
Analysis of physical and chemical indices of mould slag
Numerical simulation of flow field of molten steel in tundish
Numerical simulation of molten steel flow in mould
Simulation and optimization of solidification process of beam blank
Measures for Improving Quality of Beam Blank
Findings
Conclusions

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