Skip to main content Accessibility help
×
Home
Hostname: page-component-59b7f5684b-npccv Total loading time: 0.55 Render date: 2022-10-03T13:06:41.217Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "useRatesEcommerce": false, "displayNetworkTab": true, "displayNetworkMapGraph": true, "useSa": true } hasContentIssue true

Prevention of corner cracks in slab continuous casting

Published online by Cambridge University Press:  05 November 2009

Get access

Abstract

Surface corner cracks are sometimes observed on slabs of high strength low alloyed steel grades, requiring expensive scarfing. To avoid surface crack formation, we can act on the steel intrinsic ductility loss through the limitation of S and N contents: S < 30 ppm and N < 40 ppm are well adapted thresholds. A Ti/N ratio higher than 3.6 and a limitation of Al*N product lead to a significant improvement of the quality results. In addition, the continuous casting process must be optimized. It aims at limiting the thermomechanical strains faced by the slab surface during solidification and cooling, particularly when the slab corner temperature is in the range of the ductility trough. The main process actuators are the mould powder, the secondary cooling curves and the limitation of the misalignments in the top part of the caster, especially the transitions between the mould foot-rolls, the vertical and the bending segments.

Type
Research Article
Copyright
© La Revue de Métallurgie, 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Save article to Kindle

To save this article to your Kindle, first ensure coreplatform@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.

Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

Prevention of corner cracks in slab continuous casting
Available formats
×

Save article to Dropbox

To save this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Dropbox account. Find out more about saving content to Dropbox.

Prevention of corner cracks in slab continuous casting
Available formats
×

Save article to Google Drive

To save this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you used this feature, you will be asked to authorise Cambridge Core to connect with your Google Drive account. Find out more about saving content to Google Drive.

Prevention of corner cracks in slab continuous casting
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *