Arrangement for low-pressure casting of refractory metals

US11826820B2 · kind B2 · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Carsten Wohltmann · Bremen, DE
• Arne Otto-Radtke · Bremen, DE
• Marco Haesche · Höflaweg, DE
• Franz-Josef Woestmann · Bremen, DE
• Michael Heuser · Lake Forest, US
• Jan Eilers · Bremen, DE

Key dates

• Filing date: Jun 23, 2020
• Grant date: Nov 28, 2023
• Expiry date: Jul 31, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27B2014/108
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to an arrangement for low-pressure casting of refractory metals, with a furnace chamber with one or a plurality of gas supply openings (6) and gas outlet openings (7), and a riser pipe (8) through a cover (5) of the furnace chamber, a melting container (3, 12) for the refractory metals arranged in the furnace chamber, and a heating device for heating the refractory metals in the melting container (3, 12). In the proposed arrangement, the melting container (3, 12) is formed as an exchangeable insert for a receiving mould (2) supporting the melting container (3, 12), which is arranged in the furnace chamber, wherein a thermally insulating layer (4, 17) is formed between the receiving mould (2) and the melting container (3, 12), or is integrated into the melting container (3, 12). With the proposed arrangement, a quick and easy exchange of the melting container for different alloys can also be carried out in the low-pressure casting of refractory metals.