Lubrication using spray nozzles having multiple oil inlet openings

US10780475B2 · kind B2 · utility

Assignee

• Primetals Technologies Austria GmbH · AT

Inventors

• Martin Boehm · Munich, DE
• Thomas Braidt · Linz, AT
• Gernot Dirisamer · Parz, AT
• Konrad Krimpelstaetter · Simling, AT
• Daniel Vipavc · Linz, AT

Key dates

• Filing date: Nov 18, 2014
• Grant date: Sep 22, 2020
• Expiry date: Mar 29, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21B45/0233
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

During the rolling of a metallic flat rolling stock (1) in a roll stand (2), lubricating oil (5) is sprayed onto the rolling stock (1) and/or at least one roll (3,4) of the roll stand (2) by multiple spray nozzles (7) arranged beside one another. In each case, a mixing chamber (8) of a spray nozzle (7) is fed with a respective quantity of lubricating oil (5) via respective multiple oil inlet openings (9). The respective mixing chamber (8) is fed with compressed air (11) via respectively one air inlet opening (10). Compressed air (11) atomizes the lubricating oil (5) in the respective mixing chamber (8) to form an aerosol and, via respectively at least one nozzle outlet (12), is sprayed onto the rolling stock (1) and/or the at least one roll (3,4) of the roll stand (2).