Roller for deflecting or guiding a metal strip, which is to be coated, in a metal melt bath

US10337556B2 · kind B2 · utility

Assignees

• ThyssenKrupp Steel Europe AG · DE
• thyssenkrupp AG · DE

Inventors

• Gerd Jendrischik · Dinslaken, DE
• Frank Matzken · Voerde, DE
• Alfred Peitz · Oberhausen, DE
• Michael Peters · Kleve, DE

Key dates

• Filing date: Oct 29, 2015
• Grant date: Jul 2, 2019
• Expiry date: Jul 10, 2036

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16C2240/42
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A roller for deflecting or guiding a metal strip to be coated in a metal melt bath may include bearing journals disposed coaxially with one another for rotationally supporting the roller. To obtain a high coating quality while hot-dip coating the metal strip, in particular steel strip, and to increase the service life of such a roller, each bearing journal may comprise a plurality of axially spaced annular elevations that have or are formed from a plain-bearing coating. The roller may comprise a steel roller shell, and each bearing journal may include a substantially cylindrical or circular-disk-shaped connecting steel portion that extends radially in the direction of the roller shell. At least one of the connecting portions may comprise a passage opening at an end face of the roller shell. The passage may be closed by means of a gas-permeable plug element comprised of ceramic material.