Solid-bowl centrifuge screw having a screw hub

US11420216B2 · kind B2 · utility

Assignee

• Flottweg SE · DE

Inventors

• Matthias Scheidhammer · Vilsbiburg, DE
• Manfred Meyer · Friedrichsdorf, DE

Key dates

• Filing date: Feb 14, 2018
• Grant date: Aug 23, 2022
• Expiry date: May 13, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K9/0352
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A solid-bowl centrifuge screw with a screw hub with a first welding layer applied to a base, and at least a second welding layer applied to the first welding layers. Thus, the screw hub is produced by a shaping build-up welding method.