Metal components for picture tubes

US6645317B1 · kind B1 · utility

Assignees

• THYSSEN KRUPP STAHL AG · DE
• Wickeder Westfalenstahl GmbH · DE

Inventors

• Volker Brandenburg · Bad Hersfeld, DE
• Carl-Heinz Schutz · Duisburg, DE
• Klaus-Peter Helmetag · Hagen, DE

Key dates

• Filing date: Jun 6, 2002
• Grant date: Nov 11, 2003
• Expiry date: Jun 6, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A steel material suitable for producing components for picture tubes, in particular for producing masks, shielding covers or frames for such picture tubes, with outstanding characteristics concerning the requirements to be met by such components, according to the invention, comprises the following composition (in weight %):C:&#8194;0.0001-0.01%,N:&#8195;&#8194;0.0001-0.0035%,Mn:&#8195;0.01-0.7%,Si:&#8194;<0.03%,P:<0.1%,S:<0.1%,Alacid-soluble&#8195;<0.008%,Cr:<0.1%,Mo:&#8194;0.0001-0.08%,Sn:&#8195;<0.015%,if necessary further additives with the remainder being iron and the usual impurities.