Calibrating body, gage or measuring device, preferably screw-thread measuring device and method of production thereof

US7627953B2 · kind B2 · utility

Assignee

• SGL Carbon AG · DE

Inventors

• Norbert Richter · Meitingen, DE
• Stefan Baumann · Altenriet, DE
• Bodo Benitsch · Buttenwiesen, DE
• Thomas Schmidt · Thierhaupten, DE
• Franz Fendt · Marktoberdorf, DE

Key dates

• Filing date: Jun 18, 2007
• Grant date: Dec 8, 2009
• Expiry date: May 18, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49007
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of producing a calibrating body, gage or measuring device, preferably a screw-thread measuring device, at least partially including a C—SiC material constructed of a porous, carbon-containing material with infiltrated liquid Si, includes converting the Si at least partially to SiC by reaction with carbon. The C—SiC material is produced from a C—C material based on carbon felt material produced by pressing monofibers or fiber fragments irregularly entwined with each other. A calibrating body, gage or measuring device, preferably a screw-thread measuring device, is also provided.