Paper Title:
Melt Conditioned Direct Chill Casting (MC-DC) of Wrought Al-Alloys
  Abstract

Melt Conditioned Direct Chill (MC-DC) casting is a new development for producing high-quality billets and slabs. In the MC-DC process, liquid metal is continuously fed into a MCAST (melt conditioning by advanced shear technology) machine, where the liquid metal is subjected to high shear rate and high degree of turbulence provided by a twin screw mechanism at temperatures either above or below the alloy liquidus, and the conditioned liquid metal is then fed continuously into a Direct Chill (DC) caster to produce billets or slabs. The MC-DC process is applicable to both Al- and Mg-alloys. In this paper we present our experimental investigations of the effects of processing parameters on the microstructural and compositional uniformity of 5xxx and 7xxx series Al-alloys. It has been confirmed by our experiments that the MC-DC process can produce billets and slabs with fine and uniform microstructure, uniform chemical compositions and much reduced cast defects, such as porosity and cracks.

  Info
Periodical
Solid State Phenomena (Volumes 141-143)
Edited by
G. Hirt, A. Rassili, A. Bührig-Polaczek
Pages
403-408
DOI
10.4028/www.scientific.net/SSP.141-143.403
Citation
R. Haghayeghi, Y. Liu, Z. Y. Fan, "Melt Conditioned Direct Chill Casting (MC-DC) of Wrought Al-Alloys", Solid State Phenomena, Vols. 141-143, pp. 403-408, 2008
Online since
July 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Mark Easton, Chris H.J. Davies, Matthew R. Barnett, Franka Pravdic
Abstract:A recent trial investigated the effect of solidification grain refinement of billet on the grain refinement and properties of alloy ZM20. It...
1729
Authors: Jun Xu, Shao Ming Zhang, Bi Cheng Yang, Li Kai Shi, Z. Fan
Abstract:A new rheo-extrusion technique has been developed to produce extruded profiles. The AZ31 slurry is fabricated by a twin-screw mechanism, and...
713
Authors: Futoshi Kido, Tetsuichi Motegi
Abstract:In order to produce AZ91 and AZ31 magnesium alloy billets semisolid continuous casting by using an inclined cooling plate was carried out....
1403
Authors: Da Zhi Zhao, Fu Xiao Yu, Fang Liu, Ke Zhun He
Chapter 2: Micro / Nano Materials
Abstract:The billets of AlMg0.9Si0.7 alloy, which were cast through the direct chill (DC) casting process of low superheat, were...
549
Authors: Laurens Katgerman, Dmitry G. Eskin
Chapter 1: Invited Lectures
Abstract:Research activities on aluminium production technology focus on the successive steps in the production chain of aluminium wrought products....
43