Patent · US Expired

Apparatus for the melting of metals

US4839904A · kind A · utility

8Cited by

2References

7Claims

0Family size

Assignee

Leybold-Heraeus GmbH · DE

Inventors

Aljet Harberts · Bruchköbel, DE
Josef Heimerl · Gelnhausen, DE
Horst Ranke · Alzenau, DE

Key dates

Filing date	Oct 30, 1987
Grant date	Jun 13, 1989
Priority date	—
Expiry date	Oct 30, 2007

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D2007/066
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

An apparatus for melting metals in a vacuum chamber has a weir box (1), electron beam generators disposed above the weir box, and a crucible for the withdrawal of the melt flowing out of the weir box. A weir or sill is disposed in the trough athwart the length thereof, and it divides the trough into two basins and is situated underneath the one electron-beam source. The melt flowing from the one basin into the other runs in a thin film over the top of the weir or notch while the titanium nitrite in the melt is dissolved.

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