Method and apparatus for nucleated forming of semi-solid metallic alloys from molten metals
US6068043A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 26, 1995 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Dec 26, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S164/90
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for the forming of semi-solid nucleated metallic alloys that have been sprayed in molten form into a container for intermediate casting. According to the present invention, a molten stream of metallic alloy is disrupted into a plurality of molten metallic alloy droplets, and the droplets are partially solidified as a plurality of degenerative dendritic globules so that approximately 5% to 60% by volume of each average degenerative dendritic globule is solid and the remainder is molten. The partially solidified globules are collected to form a semi-solid mass, and a portion of the semi-solid mass is forced into a die cavity prior to solidification to form a shaped metallic alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.