Process and apparatus for producing rotationally symmetrical bodies

US5297613A · kind A · utility

Assignee

• Mannesmann AG · DE

Inventors

• Norbert Uebber · Langenfeld, DE
• Hans-Joachim Kreymann · Krefeld, DE

Key dates

• Filing date: Oct 21, 1992
• Grant date: Mar 29, 1994
• Expiry date: Oct 21, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C4/123
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method for producing a rotationally symmetrical body from a molding material, such as a molten metal, which comprises atomizing the molding material in liquid form through a spraying nozzle that is disposed relative to a spray receiving the sprayed molding material on an initial position of said surface, forming a level of liquid molding material on said spray receiving surface and molding material, forming a controllably rotating body of said liquid molding material while it is solidifying, said solidifying rotating body having a diameter, drawing the so-formed body downwardly from said initial position while continuing its rotation, continuously forming said body at said initial position, monitoring the diameter values of the rotating body at a plane adjacent to said initial position, and controlling said rotation by said diameter values.