EXPERIMENTAL INVESTIGATION OF THERMOMECHANICAL EFFECTS DURING DIRECT CHILL AND ELECTROMAGNETIC CASTING OF ALUMINUM-ALLOYS

被引：41

作者：

DREZET, JM ^{[1
]}

RAPPAZ, M ^{[1
]}

CARRUPT, B ^{[1
]}

PLATA, M ^{[1
]}

机构：

[1] ALUSUISSE LONZA CO, CH-3965 CHIPPIS, SWITZERLAND

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1995年 / 26卷 / 04期

关键词：

D O I：

10.1007/BF02651729

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The deformation and the temperature field within direct chill (DC) and electromagnetic (EM) cast aluminum ingots have been measured in situ using a simple experimental setup. The deformation of the cross section of the cold ingots has also been characterized as a function of the casting speed, alloy composition, and inoculation condition. The pull-in of the lateral rolling faces has been found to occur in two sequences for DC cast ingots, whereas that associated with electromagnetic casting (EMC) was continuous. The pull-in was maximum at the center of these faces (about 7 to 9 pet) and strongly depended upon the casting speed. Near the short sides of the ingots, the deformation was only about 2 pct and was nearly independent of the casting parameters and alloy composition. Based upon these measurements, it was concluded that the pull-in of the rolling faces was mainly due to the bending of the ingots induced by the thermal stresses. This conclusion was further supported by a simple two-dimensional thermoelastic model.

引用

页码：821 / 829

页数：9

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