SS Manufacture - Indian Practice and Electrical Perspective

C.N. Muralinath

doi:10.4028/www.scientific.net/AMR.794.37

Paper Titles

Foreword, from the editors, Committees, Reviewers and Sponsors

Development of Stainless Steels in Nuclear Industry: With Emphasis on Sodium Cooled Fast Spectrum Reactors History, Technology and Foresight
p.3

Present Status of Stainless Steel Industry in India & it’s Future Prospects
p.26

SS Manufacture - Indian Practice and Electrical Perspective
p.37

Stainless Steel - A Versatile Engineering Material for Critical Applications
p.44

Dynamic On-Line Control of Stainless Steel Making in AOD
p.50

Influence of Intrinsic Solidification Behaviour on Quality of Stainless Steel Cast and Rolled Products
p.63

Evolution of Mould Fluxes
p.75

Manufacture of Specialty Stainless Steels through Triplex Route at Mukand
p.90

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 794SS Manufacture - Indian Practice and Electrical...

SS Manufacture - Indian Practice and Electrical Perspective

Abstract:

The major route for SS production has been via EAF. The challenge of decarburising the melt with oxygen in the presence of high levels of chromium has been handled through AOD and VOD processes. In plants manufacturing other alloys as well as SS, high carbon liquid steel is produced in the EAF, without any chromium addition. All Chrome addition takes place in the AOD, increasing the process time, cost, temperature and refractory wear. EAF has high oxygen consumption and foaming arc allowing long arcs. In SS plants, the EAF charge consists of SS/MS scrap high C ferrochrome. Minimal oxygen is used and 85% of energy is electrical. Foaming slag practice has not been successful till now. Short arc lengths are used. Proper choice of Electrode Regulation System and Smart Furnace Melt program are essential. Modern Electrode Regulators are similar in regulation speeds. Hence the choice must be based on the diagnostic and analytic features and other special features which can eliminate VCB trippings and Electrode breakages. Improvements can be achieved in some areas. Electromagnetic Stirring will help in reducing arcing time, lining wear and allow longer arcs. Possibilities of modifications to the shell to allow foaming slag practice should be explored. Waste heat recovery using high temperature quenching and evaporative cooling to generate steam can be adapted.

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Periodical:

Advanced Materials Research (Volume 794)

Pages:

37-43

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.794.37

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Online since:

September 2013

Authors:

C.N. Muralinath

Keywords:

Arc Length, EAF, Electrode Regulation, Electromagnetic Stirring, Foaming Slag in Ss, Waste Energy Recovery

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