Method for casting cast parts

US9890439B2 · kind B2 · utility

Assignee

• Fritz Winter Eisengiesserei GmbH & Co. KG · DE

Inventors

• Klaus Arnold · Mandelbachtal, DE
• Dirk Rogowski · Amöneburg, DE
• Jurgen Schmidt · Los Alamos, US
• Rolf Süssmann · Homberg (Efze), DE

Key dates

• Filing date: Jul 20, 2015
• Grant date: Feb 13, 2018
• Expiry date: Jul 20, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C5/085
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for casting cast parts in which a casting mould is provided. The casting mould is enclosed in a housing, forming a filling space between an inner surface section of the housing and an associated outer surface section of the casting mould. The filling space is then filled with a free-flowing filling material and molten metal is poured in the casting mould. As a consequence a binder of the mould material begins to vaporise and combust disintegrating the casting mould. During the filling of the filling space, the filling material has a minimum temperature, starting out from which the temperature of the filling material rises, to beyond a boundary temperature at which the vaporising binder ignites and combusts.