Effects of oxide scale on the mechanics of contacts in hot strip rolling. This project simulates the oxide scale of hot strip rolling by numerical method, and to obtain a robust and efficient solution technique for hot strip rolling. The innovation of this new research area is in the determination of the thermal coefficients of oxide scale and its modelling by elastic-plastic finite element method. The BHP Institute for Steel Processing and Products, UoW will collaborate with the School of Mater ....Effects of oxide scale on the mechanics of contacts in hot strip rolling. This project simulates the oxide scale of hot strip rolling by numerical method, and to obtain a robust and efficient solution technique for hot strip rolling. The innovation of this new research area is in the determination of the thermal coefficients of oxide scale and its modelling by elastic-plastic finite element method. The BHP Institute for Steel Processing and Products, UoW will collaborate with the School of Materials Science and Engineering, University of Science and Technology Beijing, China on the development of sophisticated theory, coupled simulation model and experimental research of the rolling of strip covering oxide scale with cracks. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0989649
Funder
Australian Research Council
Funding Amount
$800,000.00
Summary
The Nanoscale Characterisation Centre WA Electron Microprobe Facility. A new-generation electron microprobe will support many fields of scientific endeavour that underpin Australia's future prosperity. The ability to map element distributions in minerals and derive quantitative analyses is essential for research into the formation of ore deposits, how to find them and how to develop them in a sustainable manner. Nanotechnology and materials science hold the keys to future developments in communi ....The Nanoscale Characterisation Centre WA Electron Microprobe Facility. A new-generation electron microprobe will support many fields of scientific endeavour that underpin Australia's future prosperity. The ability to map element distributions in minerals and derive quantitative analyses is essential for research into the formation of ore deposits, how to find them and how to develop them in a sustainable manner. Nanotechnology and materials science hold the keys to future developments in communications, computing, catalysis, medicine, environmental remediation and more. By increasing the performance of the unique WA ion probe suite, the electron microprobe will contribute to new basic science and to Australia's scientific reputation for this flagship instrumentation. Read moreRead less
Mechanics of Cold Rolling of Thin Strip. The main aim of this project is to generate a new theory for the cold rolling of thin strip (thickness: 0.1 - 0.15mm) when the work rolls contact beyond the edges of strip. The new knowledge will improve the rolling of thin strip, which is very sensitive to many parameters,some of which could not be acccounted for by existing rolling models. The expected outcomes are (1)development of a sophisticated new theory for thin strip rolling, (2) development of n ....Mechanics of Cold Rolling of Thin Strip. The main aim of this project is to generate a new theory for the cold rolling of thin strip (thickness: 0.1 - 0.15mm) when the work rolls contact beyond the edges of strip. The new knowledge will improve the rolling of thin strip, which is very sensitive to many parameters,some of which could not be acccounted for by existing rolling models. The expected outcomes are (1)development of a sophisticated new theory for thin strip rolling, (2) development of novel methods, (3) comprehensive simulation model that can predict accurately is rolling parameters and in particular the shapes and flatness of strip.Read moreRead less
Mechanics of mixed film lubrication in strip rolling. Rolling speeds of tandem cold rolling mills for thin steel strip are often limited by hot scratches and self excited chatter vibration, which forces the mill to slow down. Consequently the output is reduced and significant out-of-specification materials produced. Operating practices are guided by experience and trial-and-error method. In this project, a comprehensive model will be produced to quantify the effects of relevant parameters that c ....Mechanics of mixed film lubrication in strip rolling. Rolling speeds of tandem cold rolling mills for thin steel strip are often limited by hot scratches and self excited chatter vibration, which forces the mill to slow down. Consequently the output is reduced and significant out-of-specification materials produced. Operating practices are guided by experience and trial-and-error method. In this project, a comprehensive model will be produced to quantify the effects of relevant parameters that can provide a much better understanding of the rolling process at speeds higher than previously possible, and help to improve its productivity as well as product quality.Read moreRead less
Roll bite lubrication in hot strip rolling. Roll bite lubrication has been applied in hot strip rolling with significant cost savings in reduced rolling force, reduced roll wear and increasede productivity. However the mechanics of roll bite lubrication in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces and contact asperities. It is known how the surface roughness is generated after rolling. This proposed project will develop a model to ....Roll bite lubrication in hot strip rolling. Roll bite lubrication has been applied in hot strip rolling with significant cost savings in reduced rolling force, reduced roll wear and increasede productivity. However the mechanics of roll bite lubrication in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces and contact asperities. It is known how the surface roughness is generated after rolling. This proposed project will develop a model to simulate the roll bite lubrication process, to determine the roughness transfer from the roll surface to the strip surface, and optimise roll bite lubriation process.Read moreRead less
Contact mechanics in hot strip rolling. The mechanics of roll bite contact in hot strip rolling in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces, contact asperities and lubrication mechanism of emulsion entrained in the roll bite. It is not known how the strip surface roughness is generated after rolling. This proposed project will develop a model to simulate the contact of the roll bite and to determine the quality of the surface roug ....Contact mechanics in hot strip rolling. The mechanics of roll bite contact in hot strip rolling in the interface is not well understood due to the high temperature of the strip, scale oxide on the surfaces, contact asperities and lubrication mechanism of emulsion entrained in the roll bite. It is not known how the strip surface roughness is generated after rolling. This proposed project will develop a model to simulate the contact of the roll bite and to determine the quality of the surface roughness transfer from the roll surface to the strip surface. The outcome would be significant cost savings in reduced rolling force, increased roll life, minimal surface defects and increased productivity.Read moreRead less
Strip shape performance at tandem cold mill. The shape of the strip at the cold mill are affected significantly by machine conditions and key process variables, and yet the inter-relationship between these key areas are not known and operators rely on trial-and-error methods to operate the mill. At high speeds, the shape of the strip leaving the mill is not good, causeing problems to rolling mills downstream. The project proposed here will integrate practical knowledge and numerical modeling of ....Strip shape performance at tandem cold mill. The shape of the strip at the cold mill are affected significantly by machine conditions and key process variables, and yet the inter-relationship between these key areas are not known and operators rely on trial-and-error methods to operate the mill. At high speeds, the shape of the strip leaving the mill is not good, causeing problems to rolling mills downstream. The project proposed here will integrate practical knowledge and numerical modeling of the strip shape of tandem cold mill at high speeds to optimise the quality of the strip exiting the cold mill, and enable the mill to operate at higher speeds than the current practiceRead moreRead less
An investigation into the development of super steel. The proposed fellow demonstrates outstanding achievements in the development of both new materials and numerical modelling for steel rolling. This research project will further enhance collaboration between the State Key Laboratory of Rolling and Automation in China and the Faculty of Engineering at UoW, and will provide an opportunity for postgraduates and postdoctoral fellows in the Faculty to work with an expert of high international stand ....An investigation into the development of super steel. The proposed fellow demonstrates outstanding achievements in the development of both new materials and numerical modelling for steel rolling. This research project will further enhance collaboration between the State Key Laboratory of Rolling and Automation in China and the Faculty of Engineering at UoW, and will provide an opportunity for postgraduates and postdoctoral fellows in the Faculty to work with an expert of high international standing. The project will significantly benefit Australian manufacturing industry and generate a number of joint journal and conference publications which will improve Australia's reputation in, and knowledge of, the area of super steel strip development.Read moreRead less
First Principles for Development of High Temperature Superconducting Wires. Significant advances in research of high temperature superconductors (HTS) have been made in the past decade. However, the full commercialisation of HTS devices has not yet been achieved because the levels of electrical performance remain just below those required for technical and commercial success. In order to secure the future of HTS it will be essential to increase the critical current density, reduce the AC losses ....First Principles for Development of High Temperature Superconducting Wires. Significant advances in research of high temperature superconductors (HTS) have been made in the past decade. However, the full commercialisation of HTS devices has not yet been achieved because the levels of electrical performance remain just below those required for technical and commercial success. In order to secure the future of HTS it will be essential to increase the critical current density, reduce the AC losses and lower the cost. The objective of the proposed cluster of projects is to provide new insights into fundamental HTS materials properties such as critical current density, flux pinning, flux dynamics and AC losses by focussing on the complex interplay between physics, fabrication and materials issues. The knowledge gained will make possible improvements in the development of HTS conductors.Read moreRead less
Fabrication and Characterisation of Magnesium Diboride Superconducting Wires. The newly discovered superconductivity at 40K in magnesium diboride (MgB2) opens a technical window to a range of electric power applications, previously thought accessible only with high temperature superconductors. The aim of the proposed project is to investigate the fabricability and properties of MgB2 superconducting wires using a number of processing techniques established in previous low temperature and high tem ....Fabrication and Characterisation of Magnesium Diboride Superconducting Wires. The newly discovered superconductivity at 40K in magnesium diboride (MgB2) opens a technical window to a range of electric power applications, previously thought accessible only with high temperature superconductors. The aim of the proposed project is to investigate the fabricability and properties of MgB2 superconducting wires using a number of processing techniques established in previous low temperature and high temperature superconductors. The expected outcome is to have a MgB2 conductor that has a higher performance in a field than niobium-titanium (NbTi) alloy, a higher operating temperature (up to 20K), but at a cost less than currently commercial NbTi wire.Read moreRead less