Patent · US Expired

Process and apparatus for preparing especially metallic and semi-metallic bands of small thickness

US4858675A · kind A · utility

2Cited by
0References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 3, 1988
Grant dateAug 22, 1989
Priority date
Expiry dateMay 3, 2008

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB22D11/06
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

The invention relates to the preparation of especially metallic or semi-metallic bands or sheets, particularly with a microcrystalline or amorphous structure. According to this process, an electrically conductive molten material is made to flow from a tank through a nozzle, to form a strip of substantially rectangular cross-section, which is subsequently solidified. According to the invention, the form of the strip of liquid material is stabilized, after it has been shaped and before solidification, as a result of a mechanical surface effect induced by an alternating magnetic field.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.