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Energy conservation in reheating furnaces by reducing scrap and scale formation; Kuumamuokkauksen energiasaeaestoet romun maeaeraeae ja hilseilyae vaehentaemaellae

Abstract

The main objective of the project `Energy Savings in Reheating Furnaces by Reducing Scrap and Scale Formation` is to reduce energy consumption and environmental harms in reheating and rolling of steel. This was done by analysing the different atmospheres in reheating furnaces of the steel companies participating in this project. These atmospheres were then simulated in a laboratory furnace. Scale formation tests with different steel grades were then carried out in these atmospheres. Scale removal tests were done to some steel grades too. The results showed that lower oxygen content - as expected - decreases oxidation despite the even higher carbondioxide content in the atmosphere. Lower oxygen content may cause difficulties in scale removal. This however is highly dependent on the steel grade. Heat treatment tests showed the effect of increased temperature and furnace time on decarburization. Some energy savings was obtained in fuel consumption by optimising the operation parameters and the atmosphere steadier in different reheating furnaces. (orig.)
Authors:
Kivivuori, S; Savolainen, P; Fredriksson, J; Paavola, J [1] 
  1. Helsinki Univ. of Technology, Otaniemi (Finland). Lab. of Materials Processing and Powder Metallurgy
Publication Date:
Dec 31, 1996
Product Type:
Technical Report
Report Number:
NEI-FI-336
Reference Number:
SCA: 360101; 320303; PA: FI-97:003763; EDB-98:074258; SN: 98001889748
Resource Relation:
Other Information: DN: SULA 2 Research Programme; PBD: 1996; Related Information: Is Part Of SULA 2 - Energy-efficient steel and metal production. Yearbook 1996; Hakulin, H. [ed.]; PB: 647 p.; SULA 2 - Perusmetallien energiataloudellinen valmistus. Vuosikirja 1996
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; METAL INDUSTRY; STEELS; ENERGY CONSERVATION; SIMULATION; DESCALING; FURNACES; HEAT TREATMENTS
OSTI ID:
626265
Research Organizations:
Association of Finnish Steel and Metal Producers, Helsinki (Finland)
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE98718942; CNN: Project TEKES-SULA2-Y502; ISBN 951-817-663-9; TRN: FI9703763
Availability:
OSTI as DE98718942
Submitting Site:
FI
Size:
pp. 607-623
Announcement Date:

Citation Formats

Kivivuori, S, Savolainen, P, Fredriksson, J, and Paavola, J. Energy conservation in reheating furnaces by reducing scrap and scale formation; Kuumamuokkauksen energiasaeaestoet romun maeaeraeae ja hilseilyae vaehentaemaellae. Finland: N. p., 1996. Web.
Kivivuori, S, Savolainen, P, Fredriksson, J, & Paavola, J. Energy conservation in reheating furnaces by reducing scrap and scale formation; Kuumamuokkauksen energiasaeaestoet romun maeaeraeae ja hilseilyae vaehentaemaellae. Finland.
Kivivuori, S, Savolainen, P, Fredriksson, J, and Paavola, J. 1996. "Energy conservation in reheating furnaces by reducing scrap and scale formation; Kuumamuokkauksen energiasaeaestoet romun maeaeraeae ja hilseilyae vaehentaemaellae." Finland.
@misc{etde_626265,
title = {Energy conservation in reheating furnaces by reducing scrap and scale formation; Kuumamuokkauksen energiasaeaestoet romun maeaeraeae ja hilseilyae vaehentaemaellae}
author = {Kivivuori, S, Savolainen, P, Fredriksson, J, and Paavola, J}
abstractNote = {The main objective of the project `Energy Savings in Reheating Furnaces by Reducing Scrap and Scale Formation` is to reduce energy consumption and environmental harms in reheating and rolling of steel. This was done by analysing the different atmospheres in reheating furnaces of the steel companies participating in this project. These atmospheres were then simulated in a laboratory furnace. Scale formation tests with different steel grades were then carried out in these atmospheres. Scale removal tests were done to some steel grades too. The results showed that lower oxygen content - as expected - decreases oxidation despite the even higher carbondioxide content in the atmosphere. Lower oxygen content may cause difficulties in scale removal. This however is highly dependent on the steel grade. Heat treatment tests showed the effect of increased temperature and furnace time on decarburization. Some energy savings was obtained in fuel consumption by optimising the operation parameters and the atmosphere steadier in different reheating furnaces. (orig.)}
place = {Finland}
year = {1996}
month = {Dec}
}