Process and apparatus having improved efficiency for producing a semi-solid slurry

Patent · Tue Aug 14 00:00:00 EDT 1984

OSTI ID:6401920

Dantzig, J A; Tyler, D E

A process and apparatus having improved efficiency for forming a semi-solid alloy slurry. A molten metal in a containing device is mixed electromagnetically by a moving, non-zero magnetic field provided over substantially all of a solidification zone within the containing device. The magnetic field causes the shearing of dendrites formed in the solidification zone at a desired shearing rate. The magnetic field is generated by a device supplied with current at a desired line frequency. By operating within a defined range of line frequencies, a desired shear rate for attaining a desired cast structure at reduced levels of power consumption and current can be achieved.

• Assignee: International Telephone and Telegraph Corp.
• Patent Number(s): US 4465118
• Application Number: TRN: 85-000184
• OSTI ID: 6401920
• Resource Relation: Patent File Date: Filed date 2 Jul 1981; Other Information: PAT-APPL-279917
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
SLURRIES
CASTING
FORGING
METALLURGY
ELECTROMAGNETISM
FREQUENCY DEPENDENCE
MAGNETIC FIELDS
MIXING
SHEAR
SOLIDIFICATION
DISPERSIONS
FABRICATION
MAGNETISM
MATERIALS WORKING
MIXTURES
PHASE TRANSFORMATIONS
SUSPENSIONS
360101* - Metals & Alloys- Preparation & Fabrication