Insulated roller assembly for a roller furnace

US5143684A · kind A · utility

Assignee

• Didier-Werke AG · DE

Inventors

• Hermann Stein · Taunusstein, DE
• Alwin Vogel · Eisenberg, DE

Key dates

• Filing date: May 15, 1991
• Grant date: Sep 1, 1992
• Expiry date: May 15, 2011

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F27D3/026
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A roller assembly for a roller furnace for heat treating slabs is provided with thermal insulation. A metal roller has carrier rings spaced at intervals thereon for carrying a slab to be treated. A needled first fiber mat surrounds the metal roller between the carrier rings and has a fibrous spraying compound sprayed thereon. A binder in the fibrous spraying compound joins the fiber spraying compound with the first fiber mat. A precompressed second fiber mat is laterally disposed between the carrier rings and the fibrous spraying compound. The result is a thermal insulation arrangement which withstands the dynamic stresses of the roller assembly as well as the chemical stresses due to the presence of a hot slab.