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Innovative high temperature and mechanical descaling (HIDES)
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Innovative high temperature and mechanical descaling (HIDES)
Publication metadata
This project aims to address the surface quality problems associated with descaling efficiency through the development of new integrated routes involving the use of new water-free descaling techniques and optimisation of current water-based descaling processes. The focus of the project was primary scale of high alloyed steels from ULC electrical to high C rail steels with a range of Si-Al-Cr
additions. Primary scale high pressure water descaling technique was reassessed in detail and further optimised with introduction of improved set-ups. HPW descaling parameters were studied in detail in view of optimising descalability and surface-sub-surface chilling. Methodologies were developed to test influence of nozzle geometry and latest nozzle on descaling efficiency. Hot shot blasting as an alternative to high pressure descaling has been assessed by static shot blasting trials. Complementary trials have then been performed to define shot blasting parameters, flow rate, shot size, shot velocity, etc. An industrial wheel blasting machine was modified for pilot trials at hot temperature under conditions as close as possible to industrial parameters. The cross comparison with HPW descaling shows that shot blasting can be as efficient as HPW in removing primary scale. Important attention has been paid to the cross comparison between HPW and HSB descaling related to cost and upscaling. The cost estimation based on the pilot trials performed with an industrial wheel blasting machine, shows a lower cost for HSB descaling, but both cost calculations (HPW and HSB) are based on the test done during this project.
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Publication details
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Published:
2013-12-02
Corporate author(s):
Directorate-General for Research and Innovation
(
European Commission
)
Personal author(s):
David, A
;
Prezeau, T
;
Hoffmeister, J
;
Uijtdebroeks, Hugo
;
McGee, E
;
Peng, X
;
Lannoo, G
;
Pouteau, P
;
Izzard, C
;
Espinosa, D
;
Farrugia, D
;
Erz, A
;
Whitwood, M
;
Bugdol, M
;
Yates, P
;
Muller, T
Themes:
Industrial research and development
,
Basic metals industry, steel industry
Subject:
industrial electric machinery
,
industrial research
,
iron and steel industry
,
quality standard
,
railway industry
,
research and development
,
research project
,
research report
,
resistance of materials
,
technological process
,
use of water
PDF
ISSN
1831-9424
ISBN
978-92-79-33229-6
DOI
10.2777/4304
Catalogue number
KI-NA-26177-EN-N
PDF
ISSN
1831-9424
ISBN
978-92-79-33229-6
DOI
10.2777/4304
Catalogue number
KI-NA-26177-EN-N
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