Method and system for cold gas spraying

US7143967B2 · kind B2 · utility

Assignee

• Linde GmbH · DE

Inventors

• Peter Heinrich · Oberhausen, DE
• Thorsten Stoltenhoff · Bargteheide, DE
• Peter Richter · Heldenstein, DE
• Heinrich Kreye · Hamburg, DE
• Horst Richter · Kufstein, AT

Key dates

• Filing date: Nov 26, 2003
• Grant date: Dec 5, 2006
• Expiry date: Nov 26, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C24/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A cold gas spraying method and device, whereby the sprayed particles are accelerated in a gas flow. A powder tube and an outer nozzle body together form a Laval nozzle that produces high gas flow velocities. The injection of the sprayed particles occurs in the divergent section of the Laval nozzle.