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Thermal characteristics of the electroslag remelting process Joshi, Satish V.
Abstract
The thermal characteristics of the electroslag remelting process have been investigated on a laboratory scale unit. The heat generation and distribution in the slag bed is discussed. The voltage gradients in the slag bed are predicted using a resistance network analogue and tested against experimental results. A self-consistent model for electrode temperature gradients in the electroslag remelting process has been tested against experimental results. An unsteady-state method has been used to determine the electrical resistance and the overall heat transfer coefficient of the interface region, liquid slag/slag skin/copper wall in the electroslag furnace. An accurate heat balance of the process is carried out on laboratory scale ingots. Attention has been devoted to the influence of various melt parameters i.e. polarity, power input, geometry, atmosphere etc. on the melt rate. The power requirements and the melt rate for industrial ingots are predicted and compared with the data collected from the literature. The liquid metal pool volumes in ESR ingots are predicted from the operational data. The pool profiles are computed using a finite difference technique and compared with the experimentally obtained profiles.
Item Metadata
Title |
Thermal characteristics of the electroslag remelting process
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1971
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Description |
The thermal characteristics of the electroslag remelting process have been investigated on a laboratory scale unit.
The heat generation and distribution in the slag bed is discussed. The voltage gradients in the slag bed are predicted using a resistance network analogue and tested against experimental results.
A self-consistent model for electrode temperature gradients in the electroslag remelting process has been tested against experimental results.
An unsteady-state method has been used to determine the electrical resistance and the overall heat transfer coefficient of the interface region, liquid slag/slag skin/copper wall in the electroslag furnace.
An accurate heat balance of the process is carried out on laboratory
scale ingots. Attention has been devoted to the influence of various melt parameters i.e. polarity, power input, geometry, atmosphere etc. on the melt rate. The power requirements and the melt rate for industrial ingots are predicted and compared with the data collected from the literature.
The liquid metal pool volumes in ESR ingots are predicted from the operational data. The pool profiles are computed using a finite difference technique and compared with the experimentally obtained profiles.
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Genre | |
Type | |
Language |
eng
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Date Available |
2011-04-26
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0079260
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.