Sintering electrode

US6218025A · kind A · utility

Assignee

• Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

• Dietrich Fromm · Holzkirchen, DE
• Bernhard Altmann · Untermeitingen, DE
• Wolfram Graser · Munich, DE
• Peter Schade · Bad Dürkheim, DE

Key dates

• Filing date: Aug 18, 1998
• Grant date: Apr 17, 2001
• Expiry date: Aug 18, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/12875
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A sintered electrode of high-melting metal (for example tungsten) is produced from spherical metal powder having a well defined particle size. The mean particle size is from 5 to 70 .mu.m. The particle size distribution covers a range from at most 20% below to at most 20% above the mean particle size.