Replacement of Imported Drawn Tubes Built in Heat Exchangers by Longitudinal Seam Pipes Produced by DUNAFERR

Abstract:

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Diverse technologies in domestic enamelling production for machining, cutting and joining process are applied. The experiments presented in this paper focused on the opportunities of replacement of the drawn tubes built in heat exchangers longitudinal seam pipes produced by DUNAFERR Co. Ltd. The steel grade which satisfies the requirement of two-side enamelling, formability and after-fire sag resistance has been investigated. It has been shown that the coldrolled DC 04 EK-B steel grades stand all demands needed and therefore are able to replace the imported drawn tubes presently used.

Info:

Periodical:

Materials Science Forum (Volumes 537-538)

Edited by:

J. Gyulai and P.J. Szabó

Pages:

337-344

Citation:

É. Dénes et al., "Replacement of Imported Drawn Tubes Built in Heat Exchangers by Longitudinal Seam Pipes Produced by DUNAFERR ", Materials Science Forum, Vols. 537-538, pp. 337-344, 2007

Online since:

February 2007

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Price:

$38.00

[1] Test reports on investigation of DC 04 EK-B quality steels for enamelling, Project documents, 2003 Dunaújváros.

[2] Buza G., Fábián R., Kálazi Z., Sebestyén T., Somogyi R.: Lézeres mélyvarratos hegesztés hıhatásövezete. Bányászati Kohászati Lapok, OMBKE. No. 6-7, (2001).

[3] Hegesztési Zsebkönyv, COKOM Kft. Miskolc, (2003).

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